Search
.Management Sciences
Category: Thermodynamics
A gas is compressed in a cylinder by a movable piston to a volume one-half its original volume. During the process 300 kJ heat left the gas and internal energy remained same. The work done on gas in Nm will be___________________?
A. 300 Nm
B. 300,000 Nm
C. 30 Nm
D. 3000 Nm
E. 30,000 Nm
Gases have___________________?
A. only one value of specific heat
B. two values of specific heat
C. three values of specific heat
D. no value of specific heat
E. under some conditions one value and sometimes two values of specific heat
The unit of mass in S.I. units is ____________________?
A. kilogram
B. gram
C. tonne
D. quintal
E. newton
A perfect gas at 27°C is heated at constant pressure till its volume is double. The final temperature is________________?
A. 54°C
B. 327°C
C. 108°C
D. 654°C
E. 600°C
On volume basis, air contains following parts of oxygen _____________________?
A. 21
B. 23
C. 25
D. 77
E. 79
If a gas is heated against a pressure, keeping the volume constant, then work done will be equal to__________________?
A. + v
B. – ve
C. zero
D. pressure x volume
E. any where between zero and infinity
Carnot cycle efficiency depends upon________________?
A. properties of the medium/substance used
B. condition of engine
C. working condition
D. temperature range of operation
E. effectiveness of insulating material around the engine
Barometric pressure is equal to_____________________?
A. 760 mm Hg
B. zero mm Hg
C. 735.6 mm Hg
D. 1 mm Hg
E. 100mm Hg
Work done in an adiabatic process between a given pair of end states depends on__________________?
A. the end states only
B. particular adiabatic process
C. the value of index n
D. the value of heattransferred
E. mass of the system
The same volume of all gases would represent their____________________?
A. densities
B. specific weights
C. molecular weights
D. gas characteristic constants
E. specific gravities
Recent Comments