Mechanical Engineering MCQs

2075 MCQs  (Page 98 of 208)

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
Which of the following is the property of a system___________________?
A. pressure and temperature
B. internal energy
C. volume and density
D. enthalpy and entropy
According to Avogadro’s law, for a given pressure and temperature, each molecule of a gas_________________?
A. occupies volume proportional to its molecular weight
B. occupies volume proportional to its specific weight
C. occupies volume inversely proportional to its molecular weight
D. occupies volume inversely proportional to its specific weight
Extensive property of a system is one whose value______________________?
A. Depends on the mass of the system like volume
B. Does not depend on the mass of the system, like temperature, pressure, etc.
C. Is not dependent on the path followed but on the state
D. Is dependent on the path followed and not on the state
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
An open system is one in which____________________?
A. Mass does not cross boundaries of the system, though energy may do so
B. Neither mass nor energy crosses the boundaries of the system
C. Both energy and mass cross the boundaries of the system
D. Mass crosses the boundary but not the energy