A. at any instant
B. averagely
C. during its operation
D. during one cycle
Related Mcqs:
- The efficiency of the Carnot engine working between 150°C and 50°C is__________?
A. 50%
B. 100%
C. 23.6%
D. 29.4%Submitted by: Shuaib Uddin
- In which process all the heat supplied is converted into work done ?
A. isothermal
B. isochoric
C. isobaric
D. isentropic - When car takes turn around a curve road, the passengers feel a force acting on them in a direction away from the center of the curve. It is due to__________________?
A. Centripetal force
B. Gravitational force
C. Their inertia
D. Centrifugal force - For the successful operation of Heat engine which condition should be met ?
A. cyclic process
B. operated at certain temperature difference
C. both A and B
D. none of these - The work done in the isochoric process is________________?
A. constant
B. variable
C. zero
D. depends on situation - Work done will be maximum if the angle between the force F and displacement d is______________________?
A. 45°
B. 90°
C. 180°
D. 0°Submitted by: admin
- When a force is parallel to the direction of motion of the body, then work done on the body is_____________________?
A. zero
B. minimum
C. infinity
D. maximum - Work done by the force of friction is____________________?
A. always positive
B. always negative
C. positive only for small frictional force
D. positive only for large frictional force - A field in which the work done in a moving a body along closed path is zero is called________________?
A. electric field
B. conservative field
C. electromagnetic field
D. gravitational field - Work done on the body equals to the _____________________?
A. change in its K.E always
B. change in its P.E always
C. change in its K.E and change in its P.E
D. neither change in K.E and nor change in its P.E
