problem stringlengths 254 5.47k | gt stringclasses 10
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The following are multiple choice questions (with answers) about {$}. Think step by step and then finish your answer with \boxed{X} where X is the correct letter choice.
Question:
A cast-iron flanged coupling is used to join two steel shafts 2(1/2) in., in diameter, delivering a maximum torque of 60 ft.-lb. The two hal... | I | mmlu_pro |
The following are multiple choice questions (with answers) about {$}. Think step by step and then finish your answer with \boxed{X} where X is the correct letter choice.
Question:
An electric saw uses a no. 50 chain of pitch 5/8 in. that runs onsprockets; the smaller having 18 teeth. For conditions of smoothoperation, ... | E | mmlu_pro |
The following are multiple choice questions (with answers) about {$}. Think step by step and then finish your answer with \boxed{X} where X is the correct letter choice.
Question:
Find the Laplace transform of f(t) = t^2.
Options:
A. (2 / s^2)
B. (4 / s^3)
C. (t^2 / s)
D. (3 / s^3)
E. (2 / s^4)
F. (t^2 / s^3)
G. (1 / s... | I | mmlu_pro |
The following are multiple choice questions (with answers) about {$}. Think step by step and then finish your answer with \boxed{X} where X is the correct letter choice.
Question:
Find the Fourier sine series of f(x) = x^2 over the interval (0, 1).
Options:
A. x^2 \sim_s ^\infty\sum_n=1 {[{1} / (n\pi)] + [{(- 1)^n+1} /... | G | mmlu_pro |
The following are multiple choice questions (with answers) about {$}. Think step by step and then finish your answer with \boxed{X} where X is the correct letter choice.
Question:
(a) A mixture of air and water vapor is passing over a flat plate 2 ft long at a rate of 210 ft/sec at 1atmand 75°F. Determine the mass tran... | I | mmlu_pro |
The following are multiple choice questions (with answers) about {$}. Think step by step and then finish your answer with \boxed{X} where X is the correct letter choice.
Question:
In an experiment to study heat transfer, a metal box 35 in. long, 10 in. wide, and 3 in. deep, is propelled at a velocity of 73.3 ft/sec. Th... | J | mmlu_pro |
The following are multiple choice questions (with answers) about {$}. Think step by step and then finish your answer with \boxed{X} where X is the correct letter choice.
Question:
A liquid (\rho = 62.4 lb/ft^3 and \mu = 7.5 × 10^-4 lb/ft-s) flows past a flatplate with a free-stream velocity of 12 ft/s. For a point at a... | F | mmlu_pro |
The following are multiple choice questions (with answers) about {$}. Think step by step and then finish your answer with \boxed{X} where X is the correct letter choice.
Question:
Using the method of dimensional analysis, deduce a relationship between the bubble diameter and the properties of water when bubbles are for... | F | mmlu_pro |
The following are multiple choice questions (with answers) about {$}. Think step by step and then finish your answer with \boxed{X} where X is the correct letter choice.
Question:
A gas containing 0.05 mass fraction of CO flows into a container at a rate of 250 lb/hr, where it is mixed with preheated air to oxidize the... | D | mmlu_pro |
The following are multiple choice questions (with answers) about {$}. Think step by step and then finish your answer with \boxed{X} where X is the correct letter choice.
Question:
A 12 ft. long 4 in. diameter steel tube is insulated with 1 in. thick layer of an insulating material whose thermal conductivity is 0.05 Btu... | I | mmlu_pro |
The following are multiple choice questions (with answers) about {$}. Think step by step and then finish your answer with \boxed{X} where X is the correct letter choice.
Question:
A line amplifier of bandwidth 22 kHz has an input source resistanceof 750\Omega at a standard noise temperature of 290°K.If the input and ou... | E | mmlu_pro |
The following are multiple choice questions (with answers) about {$}. Think step by step and then finish your answer with \boxed{X} where X is the correct letter choice.
Question:
The water surface, in an open cylindrical tank is 25 ft below thetop. Dry air is blown over the top of the tank and the entiresystem is main... | I | mmlu_pro |
The following are multiple choice questions (with answers) about {$}. Think step by step and then finish your answer with \boxed{X} where X is the correct letter choice.
Question:
Water is flowing through a 4 in. inside diameter, wrought iron pipe of 100 ft., at a mean velocity of 6 feet/sec. If the outlet of the pipe ... | G | mmlu_pro |
The following are multiple choice questions (with answers) about {$}. Think step by step and then finish your answer with \boxed{X} where X is the correct letter choice.
Question:
It is desired to remove water from an air-water mixture which contains35 percent water by volume. The mixture diffuses into a section of sti... | I | mmlu_pro |
The following are multiple choice questions (with answers) about {$}. Think step by step and then finish your answer with \boxed{X} where X is the correct letter choice.
Question:
Calculate the minimum depth at which water pipes have to bepositioned below the ground surface to avoid freezing in a geographicalarea with ... | C | mmlu_pro |
The following are multiple choice questions (with answers) about {$}. Think step by step and then finish your answer with \boxed{X} where X is the correct letter choice.
Question:
Find the surface heat transfer coefficient of a 2 ft. high flat plateat 220°F, when immersed in water at 70°F.
Options:
A. 205 Btu/hr-ft^2-°... | E | mmlu_pro |
The following are multiple choice questions (with answers) about {$}. Think step by step and then finish your answer with \boxed{X} where X is the correct letter choice.
Question:
Water at 70°F (\mu = 1 cp) is flowing at a velocity of 15 ft/s over along (in the direction of the flow) thin flat plate. Find the distancef... | B | mmlu_pro |
The following are multiple choice questions (with answers) about {$}. Think step by step and then finish your answer with \boxed{X} where X is the correct letter choice.
Question:
A polished stainless steel surface is electrically heated from the bottom to boil water at atmospheric pressure. If the surface temperature ... | C | mmlu_pro |
The following are multiple choice questions (with answers) about {$}. Think step by step and then finish your answer with \boxed{X} where X is the correct letter choice.
Question:
A drop of water, spherical in shape (5mm diameter) is movingin air (T_\infty = 25°C) with a velocity of 8m/sec. Find the steady state temper... | G | mmlu_pro |
The following are multiple choice questions (with answers) about {$}. Think step by step and then finish your answer with \boxed{X} where X is the correct letter choice.
Question:
If the exhaust gases contain 0.22% of NO by weight, calculate (i) The minimum value of \delta allowable if a NO reduction rate of0.032 lb/ft... | J | mmlu_pro |
The following are multiple choice questions (with answers) about {$}. Think step by step and then finish your answer with \boxed{X} where X is the correct letter choice.
Question:
The wet-bulb thermometer reads a temperature of 65°F whenair at atmospheric pressure and 95°F blows across the thermometer. Determine the re... | B | mmlu_pro |
The following are multiple choice questions (with answers) about {$}. Think step by step and then finish your answer with \boxed{X} where X is the correct letter choice.
Question:
A wide plate of length 3.5 in. has air at 1 atm. and 180°F moving parallel to it at a velocity of 190 ft/sec. Determine the average heat flu... | I | mmlu_pro |
The following are multiple choice questions (with answers) about {$}. Think step by step and then finish your answer with \boxed{X} where X is the correct letter choice.
Question:
What is the name of the fluorescent material that gives red colour fluorescence?
Options:
A. Zinc silicate.
B. Calcium silicate.
C. Aluminum... | H | mmlu_pro |
The following are multiple choice questions (with answers) about {$}. Think step by step and then finish your answer with \boxed{X} where X is the correct letter choice.
Question:
A step up chopper has input voltage 110 V and output voltage 150 V. The value of duty cycle is
Options:
A. 0.90.
B. 0.38.
C. 0.82.
D. 0.55.
... | J | mmlu_pro |
The following are multiple choice questions (with answers) about {$}. Think step by step and then finish your answer with \boxed{X} where X is the correct letter choice.
Question:
A sinusoidal signal is analog signal, because
Options:
A. it is negative for one half cycle
B. it has a sinusoidal waveform
C. it has positi... | H | mmlu_pro |
The following are multiple choice questions (with answers) about {$}. Think step by step and then finish your answer with \boxed{X} where X is the correct letter choice.
Question:
Electrical analogous quantity for dash-pot in force-current analogy is
Options:
A. resistance.
B. reactance.
C. capacitance.
D. inductance.
... | G | mmlu_pro |
The following are multiple choice questions (with answers) about {$}. Think step by step and then finish your answer with \boxed{X} where X is the correct letter choice.
Question:
The latching current of SCR is 20 mA. Its holding current will be
Options:
A. 20 mA.
B. 40 mA.
C. 30 mA.
D. 60 mA.
E. 10 mA.
F. 15 mA.
G. 50... | E | mmlu_pro |
The following are multiple choice questions (with answers) about {$}. Think step by step and then finish your answer with \boxed{X} where X is the correct letter choice.
Question:
If holding current of a thyristor is 2 mA then latching current should be
Options:
A. 0.004 A.
B. 0.002 A.
C. 0.001 A.
D. 0.01 A.
| A | mmlu_pro |
The following are multiple choice questions (with answers) about {$}. Think step by step and then finish your answer with \boxed{X} where X is the correct letter choice.
Question:
A piston-cylinder device has an initial contained volume of 0.1 ft^3 and contains steam at an initial state of 160 psia, 500°F. The steam is... | H | mmlu_pro |
The following are multiple choice questions (with answers) about {$}. Think step by step and then finish your answer with \boxed{X} where X is the correct letter choice.
Question:
A nozzle has air flowing through it at a rate of 0.25 lb/sec. The inlet conditions are; P_i = 35 psia, T_i = 650°R and specific volume = 6.0... | J | mmlu_pro |
The following are multiple choice questions (with answers) about {$}. Think step by step and then finish your answer with \boxed{X} where X is the correct letter choice.
Question:
Heats of reaction can be calculated from the heats of formationof the reactant and product species. Using the followingheats of formation, c... | D | mmlu_pro |
The following are multiple choice questions (with answers) about {$}. Think step by step and then finish your answer with \boxed{X} where X is the correct letter choice.
Question:
What is the equilibrium composition of a mixture ofcarbon monoxide, carbon dioxide, and molecular oxygen at 3000°K and30psia? Assume the mix... | H | mmlu_pro |
The following are multiple choice questions (with answers) about {$}. Think step by step and then finish your answer with \boxed{X} where X is the correct letter choice.
Question:
Carbon dioxide decomposes into carbon monoxide and oxygenby the following reaction: CO_2 \rightleftharpoons CO + (1/2)O_2. Calculate the equ... | E | mmlu_pro |
The following are multiple choice questions (with answers) about {$}. Think step by step and then finish your answer with \boxed{X} where X is the correct letter choice.
Question:
A block of copper is at an initial pressure and temperature of 1 atm and 520°R respectively. The pressure is then increased to 1000 atm in a... | G | mmlu_pro |
The following are multiple choice questions (with answers) about {$}. Think step by step and then finish your answer with \boxed{X} where X is the correct letter choice.
Question:
A vessel with a frictionless piston contains 1 ft^3 of a gas at 200psia.The piston is held in position by applying an externalforce. Calcula... | G | mmlu_pro |
The following are multiple choice questions (with answers) about {$}. Think step by step and then finish your answer with \boxed{X} where X is the correct letter choice.
Question:
A mixture of 6 mol of helium and 4 mol of nitrogen is at 170°F and 120psia. If this mixture is expanded isentropic-ally to 25psia, find (a) ... | C | mmlu_pro |
The following are multiple choice questions (with answers) about {$}. Think step by step and then finish your answer with \boxed{X} where X is the correct letter choice.
Question:
Calculate the minimum power required to cool 100 lb moles / min of air from 550°R to 500°R when the surrounding temperature is 550°R.
Option... | A | mmlu_pro |
The following are multiple choice questions (with answers) about {$}. Think step by step and then finish your answer with \boxed{X} where X is the correct letter choice.
Question:
The gauge pressure in an automobile tire when measured during winter at 32°F was 30 pounds per square inch (psi). The same tire was used dur... | A | mmlu_pro |
The following are multiple choice questions (with answers) about {$}. Think step by step and then finish your answer with \boxed{X} where X is the correct letter choice.
Question:
A reciprocating refrigeration compressor uses Freon-12 as the refrigerant. The gas enters at 20lbf/in^2, 60°F and is compressed to 180lbf/in... | F | mmlu_pro |
The following are multiple choice questions (with answers) about {$}. Think step by step and then finish your answer with \boxed{X} where X is the correct letter choice.
Question:
A rectangular broad crested weir is 30 ft long and is known to have a discharge coefficient of 0.7. Determine the discharge if the upstream ... | C | mmlu_pro |
The following are multiple choice questions (with answers) about {$}. Think step by step and then finish your answer with \boxed{X} where X is the correct letter choice.
Question:
At low velocities (laminar flow), the volume flux Q through a small-boretube is a function only of the pipe radius r, the fluidviscosity \mu... | H | mmlu_pro |
The following are multiple choice questions (with answers) about {$}. Think step by step and then finish your answer with \boxed{X} where X is the correct letter choice.
Question:
A gravity fed lock in a proposed shipping canal is to be studied with a 1/100-scale geometrically similar model. (a) If the model lock fills... | F | mmlu_pro |
The following are multiple choice questions (with answers) about {$}. Think step by step and then finish your answer with \boxed{X} where X is the correct letter choice.
Question:
An airplane is designed according to the following specifications. weight = 3000lbf wing area = 300 ft^2 takeoff speed = 100 ft/sec Model te... | A | mmlu_pro |
The following are multiple choice questions (with answers) about {$}. Think step by step and then finish your answer with \boxed{X} where X is the correct letter choice.
Question:
Water flows through a 1-in. diameter pipe. The kinematic viscosity of water is 0.1 × 10^-4 ft^2/s. Calculate the largest flow rate for which... | A | mmlu_pro |
The following are multiple choice questions (with answers) about {$}. Think step by step and then finish your answer with \boxed{X} where X is the correct letter choice.
Question:
A 5-kva transformer has a nominal voltage rating of 1,100/110 volts. With the low-voltage winding short-circuited, it is found by experiment... | J | mmlu_pro |
The following are multiple choice questions (with answers) about {$}. Think step by step and then finish your answer with \boxed{X} where X is the correct letter choice.
Question:
A 5-kva transformer is supplying a lighting load; it would, in a normalday's run, operate at full load 1% hours and perhaps athalf load 1(1/... | D | mmlu_pro |
The following are multiple choice questions (with answers) about {$}. Think step by step and then finish your answer with \boxed{X} where X is the correct letter choice.
Question:
A coil that has a resistance of 0.05 ohms is connected to a cellthat develops anemfof 1.5 volts. Find the current flowingif the internal res... | H | mmlu_pro |
The following are multiple choice questions (with answers) about {$}. Think step by step and then finish your answer with \boxed{X} where X is the correct letter choice.
Question:
A 120 V dc shunt motor having an armature circuit resistance of 0.2 ohm and a field circuit resistance of 60 ohms, draws a line current of 4... | E | mmlu_pro |
The following are multiple choice questions (with answers) about {$}. Think step by step and then finish your answer with \boxed{X} where X is the correct letter choice.
Question:
Calculate the effect of armature reaction in a machine that is designed as follows: Series conductors per phase= 240 Slot width, a_3= - 0.50... | E | mmlu_pro |
The following are multiple choice questions (with answers) about {$}. Think step by step and then finish your answer with \boxed{X} where X is the correct letter choice.
Question:
Consider a capacitor with capacitance C = 10^-6 farad. Assume that initial voltage across this capacitor is\nu_c(0) = 1 volt. Find the volta... | G | mmlu_pro |
The following are multiple choice questions (with answers) about {$}. Think step by step and then finish your answer with \boxed{X} where X is the correct letter choice.
Question:
Assuming the passive sign convention, find the current through a 0.1 H inductor at t = 2s if (a) V_L = 0.5 t V for 0 \leq t \leq 3s,\nu_L= 0... | H | mmlu_pro |
The following are multiple choice questions (with answers) about {$}. Think step by step and then finish your answer with \boxed{X} where X is the correct letter choice.
Question:
The approximate radiation fields of a certain antenna are H_\textphi= (1/r) sin \textthetacos(\cyrchar\cyromegat-\betar) andE_\texttheta= 37... | B | mmlu_pro |
The following are multiple choice questions (with answers) about {$}. Think step by step and then finish your answer with \boxed{X} where X is the correct letter choice.
Question:
Using the definition of the unilateral Z transform, F (z) = ^\infty\sum_n=0 f[n] z^-n. find the z - transform of the step-sequence f[n] = u[... | G | mmlu_pro |
The following are multiple choice questions (with answers) about {$}. Think step by step and then finish your answer with \boxed{X} where X is the correct letter choice.
Question:
A shunt motor with an armature and field resistance of 0.055 and 32 ohms, respectively, is to be tested for its mechanical efficiency by mea... | H | mmlu_pro |
The following are multiple choice questions (with answers) about {$}. Think step by step and then finish your answer with \boxed{X} where X is the correct letter choice.
Question:
Let F= kr^nr̂ Evaluate \int\int_sF\bullet n̂dsand \int\int_sF× n̂ds wheres is a sphere of radius a centered at the origin.
Options:
A. 4\pi ... | H | mmlu_pro |
The following are multiple choice questions (with answers) about {$}. Think step by step and then finish your answer with \boxed{X} where X is the correct letter choice.
Question:
A four-pole d-c generator has an armature winding containing a total of 648 conductors connected in two parallel paths. If the flux per pole... | B | mmlu_pro |
The following are multiple choice questions (with answers) about {$}. Think step by step and then finish your answer with \boxed{X} where X is the correct letter choice.
Question:
A 10-kW 250-V self-excited generator, when delivering rated load, has an armature-circuit voltage drop that is 5% of the terminal voltage an... | B | mmlu_pro |
The following are multiple choice questions (with answers) about {$}. Think step by step and then finish your answer with \boxed{X} where X is the correct letter choice.
Question:
A plane wave having a frequency of 1590 MHz is traveling in a medium for which\mu_r=\epsilon_r= 1 and \sigma = 0.1 mho/m. If thermselectric ... | C | mmlu_pro |
The following are multiple choice questions (with answers) about {$}. Think step by step and then finish your answer with \boxed{X} where X is the correct letter choice.
Question:
A voltage source \nu(t) is connected to a capacitor C = 2f. Find the energy stored in the capacitor from t = 0 to t = 10 sec if (a) \nu(t) =... | C | mmlu_pro |
The following are multiple choice questions (with answers) about {$}. Think step by step and then finish your answer with \boxed{X} where X is the correct letter choice.
Question:
A two-pole dc generator has an armature containing a total of 40 conductors connected in two parallel paths. The flux per pole is 6.48 × 10^... | F | mmlu_pro |
The following are multiple choice questions (with answers) about {$}. Think step by step and then finish your answer with \boxed{X} where X is the correct letter choice.
Question:
Calculate the change in the stored energy of a parallel plate capacitoras a result of inserting a dielectric slab.
Options:
A. 0.72
B. 0.56
... | G | mmlu_pro |
The following are multiple choice questions (with answers) about {$}. Think step by step and then finish your answer with \boxed{X} where X is the correct letter choice.
Question:
Calculate the total electric potential energy of a thin spherical conducting shell of radius R and carrying charge q.
Options:
A. {q^2R / (4... | H | mmlu_pro |
The following are multiple choice questions (with answers) about {$}. Think step by step and then finish your answer with \boxed{X} where X is the correct letter choice.
Question:
Find the energy stored in a nonlinear capacitor with characteristics given by g(t) = 0.5 \nu^2(t) and\nu(t) = 1 + 0.5 sin t from t = 0 to t ... | D | mmlu_pro |
The following are multiple choice questions (with answers) about {$}. Think step by step and then finish your answer with \boxed{X} where X is the correct letter choice.
Question:
Suppose the effect of a magnetic field is to induce a magnetic dipole moment of 10^-23 A m^2 per atom. Let there be 10^27 atoms/m^3. Find th... | G | mmlu_pro |
The following are multiple choice questions (with answers) about {$}. Think step by step and then finish your answer with \boxed{X} where X is the correct letter choice.
Question:
Find the general solution of the differential equation [(d^2x) / (dt^2)] - 2 (dx/dt) - 3x= 10asin t +b(2t + 1)(1) whereaandbare constant vec... | G | mmlu_pro |
The following are multiple choice questions (with answers) about {$}. Think step by step and then finish your answer with \boxed{X} where X is the correct letter choice.
Question:
A linear time-invariant resistor of 4\Omega has a current through it given byi(t) = sin\pit. If E(0) = 0, find the energy dissipated in the ... | I | mmlu_pro |
The following are multiple choice questions (with answers) about {$}. Think step by step and then finish your answer with \boxed{X} where X is the correct letter choice.
Question:
A 3.5m × 2m vertical plate is subjected to a constant heat flux of 800 W/m^2. The back of the plate is insulated and the ambient air tempera... | A | mmlu_pro |
The following are multiple choice questions (with answers) about {$}. Think step by step and then finish your answer with \boxed{X} where X is the correct letter choice.
Question:
Compute the surface temperature of a 1/12 in. diameter resistance wire generating heat at the rate of 236.77 Btu/hr per foot length. The amb... | I | mmlu_pro |
The following are multiple choice questions (with answers) about {$}. Think step by step and then finish your answer with \boxed{X} where X is the correct letter choice.
Question:
Find the system function H(j\omega) = [{V_i (j\omega)} / {I_i (j\omega)}], and impulse response of a one-port network if the input voltage, ... | C | mmlu_pro |
The following are multiple choice questions (with answers) about {$}. Think step by step and then finish your answer with \boxed{X} where X is the correct letter choice.
Question:
Water film boiling occurs on top of a horizontal plate. The wateris at a pressure of 1 atm. and the surface temperature ofthe plate is 554°C... | D | mmlu_pro |
The following are multiple choice questions (with answers) about {$}. Think step by step and then finish your answer with \boxed{X} where X is the correct letter choice.
Question:
Air flows through a tube, and heat is transferred by means of forced convection. The tube is 1 ft. long, with an internal diameter of 2 in. ... | A | mmlu_pro |
The following are multiple choice questions (with answers) about {$}. Think step by step and then finish your answer with \boxed{X} where X is the correct letter choice.
Question:
Evaluate f(t) if F(s) = [(2s^2 + 13s + 17) / {(s + 1)(s + 3)}]
Options:
A. 2\delta(t) + (3e^-t + 2e^-3t)
B. 2 + (3e^-t + 2e^-3t)u(t)
C. 2\de... | I | mmlu_pro |
The following are multiple choice questions (with answers) about {$}. Think step by step and then finish your answer with \boxed{X} where X is the correct letter choice.
Question:
Water cools the inside of a pipe, with the transfer of heat accomplished by the mechanism of forced convection. The mass flow rate is 200 lb... | D | mmlu_pro |
The following are multiple choice questions (with answers) about {$}. Think step by step and then finish your answer with \boxed{X} where X is the correct letter choice.
Question:
A pipe is cooled internally by forced convection from the flow of a non-Newtonian fluid. The pipe is 5 ft. long, with a diameter of 1 in. Th... | G | mmlu_pro |
The following are multiple choice questions (with answers) about {$}. Think step by step and then finish your answer with \boxed{X} where X is the correct letter choice.
Question:
A steel shaft transfers 50 hp to another parallel shaft through gears. The gear equally spaced from the shaft bearings, is 5 in. of diameter... | A | mmlu_pro |
The following are multiple choice questions (with answers) about {$}. Think step by step and then finish your answer with \boxed{X} where X is the correct letter choice.
Question:
A plate cam causes a reciprocating roller follower to execute asimple harmonic motion with a maximum displacement of 2 in.The motion compris... | A | mmlu_pro |
The following are multiple choice questions (with answers) about {$}. Think step by step and then finish your answer with \boxed{X} where X is the correct letter choice.
Question:
The fatigue loading applied on a compression spring consists of a minimum load of 145 lbs. to a maximum load of 295 lbs. Design the spring w... | I | mmlu_pro |
The following are multiple choice questions (with answers) about {$}. Think step by step and then finish your answer with \boxed{X} where X is the correct letter choice.
Question:
A driver applies brakes and slows down the car at a constant rate of 25 fps^2 till it comes to rest. The car weighs 3500 lbs. and its averag... | I | mmlu_pro |
The following are multiple choice questions (with answers) about {$}. Think step by step and then finish your answer with \boxed{X} where X is the correct letter choice.
Question:
A mine hoist lifts a load of 8.0 tons from a depth of 700 ft. If the speed of the rope is 1500 fpm, attained in 10 sec, calculate the accept... | H | mmlu_pro |
The following are multiple choice questions (with answers) about {$}. Think step by step and then finish your answer with \boxed{X} where X is the correct letter choice.
Question:
Calculate the spring rate of the mounting springs to reduce theunbalanced force by 15% for an engine. The engine weighs950 lbs. and function... | G | mmlu_pro |
The following are multiple choice questions (with answers) about {$}. Think step by step and then finish your answer with \boxed{X} where X is the correct letter choice.
Question:
The shaft of a centrifugal pump is supported by a 180° centralpartial journal bearing 3 in. in diameter and 6 in. long. The clearance betwee... | A | mmlu_pro |
The following are multiple choice questions (with answers) about {$}. Think step by step and then finish your answer with \boxed{X} where X is the correct letter choice.
Question:
The Cauchy density function is given by f(x) = [K / (1 + x^2)]- \infty \leq x \leq \infty. Determine (a) the value of K such that f(x) is a ... | J | mmlu_pro |
The following are multiple choice questions (with answers) about {$}. Think step by step and then finish your answer with \boxed{X} where X is the correct letter choice.
Question:
Calculate the time needed for a water spill to evaporate into stillair at 74°F and 1 atm., with an absolute humidity of 0.0019 lb of water p... | D | mmlu_pro |
The following are multiple choice questions (with answers) about {$}. Think step by step and then finish your answer with \boxed{X} where X is the correct letter choice.
Question:
A drop of water with a diameter of 0.12 in. is surrounded by stillair at 78°F. The air has water vapor of partial pressure 0.01037 atm. Dete... | I | mmlu_pro |
The following are multiple choice questions (with answers) about {$}. Think step by step and then finish your answer with \boxed{X} where X is the correct letter choice.
Question:
Calculate the drag force acting on a 3 ft wide by 4 ft long planesurface when water flows over it at a free-stream velocityof 5 ft/s. The la... | C | mmlu_pro |
The following are multiple choice questions (with answers) about {$}. Think step by step and then finish your answer with \boxed{X} where X is the correct letter choice.
Question:
Given that the joint density function of the random variables X, Y and Z is f(x, y, z) = e-(x+y+z)when 0 < x < \infty, 0 < y < \infty, 0 < z... | A | mmlu_pro |
The following are multiple choice questions (with answers) about {$}. Think step by step and then finish your answer with \boxed{X} where X is the correct letter choice.
Question:
12 gal/min of a liquid with a specific gravity of 1.3 is to be lifted with an air pump. If air can be obtained at 55 psig, and the liquid is... | G | mmlu_pro |
The following are multiple choice questions (with answers) about {$}. Think step by step and then finish your answer with \boxed{X} where X is the correct letter choice.
Question:
A 50 V pulse is incident on a 30 ohm load (Z_L = R_L) in a line with characteristic resistance of Z_0 = R_0 = 50 ohms. Find the following: a... | B | mmlu_pro |
The following are multiple choice questions (with answers) about {$}. Think step by step and then finish your answer with \boxed{X} where X is the correct letter choice.
Question:
A rectangular section of a porous solid 0.5 in. thick is submergedin 100 % ethanol. The voids of the solid compose50 % of its volume. The so... | C | mmlu_pro |
The following are multiple choice questions (with answers) about {$}. Think step by step and then finish your answer with \boxed{X} where X is the correct letter choice.
Question:
200 stg ft^3/min of ethane at 70°F (C_p = 13.3 Btu/lb-mol F, \gamma = specific heat ratio = 1.22) is compressed from 11 psia to 1,000 psia i... | A | mmlu_pro |
The following are multiple choice questions (with answers) about {$}. Think step by step and then finish your answer with \boxed{X} where X is the correct letter choice.
Question:
A mixture of N_2 and O_2 gases contains equal weight of each gas. The absolute velocities are given as: v_(N)2^\ding{217} = - 7i^\ding{217} ... | B | mmlu_pro |
The following are multiple choice questions (with answers) about {$}. Think step by step and then finish your answer with \boxed{X} where X is the correct letter choice.
Question:
Find a cosine series which represents f(x) in 0 \leq x \leq \pi if f(x) is defined as f(x) = 00 \leq x < (\pi / 2) f(x) = 1(\pi / 2) < x \le... | J | mmlu_pro |
The following are multiple choice questions (with answers) about {$}. Think step by step and then finish your answer with \boxed{X} where X is the correct letter choice.
Question:
A cylindrical container 3 ft. in diameter and 5 ft. high has oil. A transformer is immersed in the oil. Determine the surface temperatureof ... | A | mmlu_pro |
The following are multiple choice questions (with answers) about {$}. Think step by step and then finish your answer with \boxed{X} where X is the correct letter choice.
Question:
The relative humidity and temperature of an air flowing over awater surface with an average velocity of 5 ft/sec are respectively42 percent ... | D | mmlu_pro |
The following are multiple choice questions (with answers) about {$}. Think step by step and then finish your answer with \boxed{X} where X is the correct letter choice.
Question:
A random variable R has a Rayleigh density f(r) = (r / \alpha^2)e[{-(r)2} / {2(\alpha)2}],0 \leq r \leq \infty and = 0,r < 0 Determine the f... | J | mmlu_pro |
The following are multiple choice questions (with answers) about {$}. Think step by step and then finish your answer with \boxed{X} where X is the correct letter choice.
Question:
The emissivity of inner and outer surfaces of vertical air spacein a 6 in. thick and 9 ft. high wall is 0.90. The inner andouter wall surfac... | C | mmlu_pro |
The following are multiple choice questions (with answers) about {$}. Think step by step and then finish your answer with \boxed{X} where X is the correct letter choice.
Question:
A flat plate is maintained at a constant temperature of 225°F (107.6°C). Air at 1 atm. and a temperature, T_\infty, of 140°F (60.3°C) moves ... | F | mmlu_pro |
The following are multiple choice questions (with answers) about {$}. Think step by step and then finish your answer with \boxed{X} where X is the correct letter choice.
Question:
The normal voltage used in directional heating is
Options:
A. 150 KV.
B. 500 KV.
C. 100 KV.
D. 33 KV.
E. 200 KV.
F. 66 KV.
G. 1.5 KV.
H. 77 ... | G | mmlu_pro |
The following are multiple choice questions (with answers) about {$}. Think step by step and then finish your answer with \boxed{X} where X is the correct letter choice.
Question:
How many entries will be in the truth table of a 3 input NAND gate ?
Options:
A. 3
B. 18
C. 9
D. 10
E. 6
F. 4
G. 16
H. 8
I. 12
J. 7
| H | mmlu_pro |
The following are multiple choice questions (with answers) about {$}. Think step by step and then finish your answer with \boxed{X} where X is the correct letter choice.
Question:
For an SCR gate cathode characteristic is a straight line of 130. For triggered source volume of 15 V and allowable gate power dissipation o... | G | mmlu_pro |
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