Mechanical Engineering MCQs

A. gas engine
B. well lubricated engine
C. petrol engine
D. steam engine

A. working substance
B. design of engine
C. size of engine
D. type of fuel fired

A. carnot
B. stirling
C. ericsson
D. all of the above

A. Heat can’t be transferred from low temperature source to high temperature source
B. Heat can be transferred for low temperature to high temperature source by using refrigeration cycle.
C. Heat can be transferred from low temperature to high temperature source if cop of process is more than unity
D. Heat can’t be transferred from low temperature to high temperature source without the aid of external energy

A. A thermodynamic machine
B. A non-thermodynamic machine
C. A hypothetical machine
D. A hypothetical machine whose opera-tion would violate the laws of thermodynamics

A. 1 kgf/cnr2
B. 1.033 kgf/cm2
C. 0 kgf/cm2
D. 1.0197 kgf/cm2

A. 760 mm hg
B. Zero mm hg
C. 735.6 mm hg
D. 1 mm hg

A. Watts/°k
B. Dynes/°c
C. Ergscm/°k
D. Erg/°k

A. Heat
B. Potential energy
C. Surface tension
D. Friction

A. At atmospheric pressure
B. At a pressure below the firuosphejric pressure
C. At a pressure greater than atmospheric pressure
D. Any pressure