Top 350+ Solved Thermodynamics MCQ Questions Answer
Q. The adiabatic horse power required to deliver 4 cu. M per minute of free air from 1 ata and 15?C to a received pressure at 7 ata would be in the range
a. 20 ? 25
b. 5 ? 7
c. 7 ? 10
d. 15 ? 20
e. 10 ? 15
Q. If a closed circuit is made of two dissimilar metals, an electric current flows in the circuit whdn the two junctions are maintained at different temperatures. This phenomenon is known as
a. Seeback effect
b. Peltier effect
c. Maxwell's effect
d. Faraday's effect
e. Thomson effect
Q. Thermal efficiency of most of the internal combustion engines lies in the range
a. 50 to 75 percent
b. 90 to 100 percent
c. 20 to 35 percent
d. 75 to 90 percent
e. 35 to 50 percent
Q. A body of weight 100 N falls freely through a distance of 10 m against an atmospheric drag force of 5 N. Considering the body as the system, the work interaction is
a. 250 Nm
b. 1050 Nm
c. 1000 Nm
d. Pulsejet
e. 50 Nm
Q. One bar pressure is the same as
a. 1000 N/m2
b. 100 N/m2
c. 100,000 N/m2
d. 1 N/m2
e. 1000,000 N/m2
Q. When a gas expands in a closed vessel, the maximum work will be done when the process is at constant
a. Pressure
b. Enthalpy
c. Volume
d. Entropy
e. Temperature
Q. The RMS velocity of hydrogen gas at N.T.P. is nearly
a. 4839 m/s
b. 839 m/s
c. 1839 m/s
d. 2839 m/s
e. 3839 m/s