Zeroth law of thermodynamics
First law of thermodynamics
Second law of thermodynamics
none of these
✅ The correct answer is option C.
Engineering MCQs
The power developed by a body acted upon by a torque T newton metre (N – m) and revolving at ω radian/s is given by
T.ω (in watts)
T.ω/60 (in watts)
T.ω/75 (in kilowatts)
T.ω/4500 (in kilowatts
✅ The correct answer is option A.
The specific gravity of water is taken as
0.001
0.01
0.1
1
✅ The correct answer is option D.
When cornering, the differential generates a difference in the speed of the left and right wheels.
TRUE
FALSE
✅ The correct answer is option A.
In chemical dehumidification process,
dew point temperature decreases
wet bulb temperature decreases
dry bulb temperature increases
all of these
✅ The correct answer is option D.
Power of a governor is the
mean force exerted at the sleeve for a given percentage change of speed
workdone at the sleeve for maximum equilibrium speed
mean force exerted at the sleeve for maximum equilibrium speed
none of the above
✅ The correct answer is option D.
Environmental protection agencies advice against the use of chloro-fluoro-carbon refrigerants since
these react with water vapour and cause acid rain
these react with plants and cause green-house effect
these react with oxygen and cause its depletion
these react with ozone
✅ The correct answer is option D.
The delta-iron possesses a body centred cubic space lattice.
Correct
Incorrect
✅ The correct answer is option A.
The overall isothermal efficiency of the compressor is defined as the ratio of
work required to compress the air isothermally to the actual work required to compress the air for the same pressure ratio
isothermal power to the shaft power or B.P. of the motor or engine required to drive the compressor
volume of free air delivery per stroke to the swept volume of the piston
isentropic power to th
✅ The correct answer is option B.
Chilled cast iron is produced
by adding magnesium to molten cast iron
by quick cooling of molten cast iron
from white cast iron by annealing process
none of these
✅ The correct answer is option B.