# Theory of Machine | Theory of Machine Objective Type Questions and answers

6. Most of the engines generally.......

A.require balancing of secondary forces

B.require balancing of secondary couples

C.require balancing of both secondary forces and couples

D.do not require balancing of secondary forces and couples

E.none of the above

D.do not require balancing of secondary forces and couples

7. A three rotor systemhas followingnumber of natural frequencies.......

A.one

B.two

C.three

D.four

E.six

B.two

8. Criticaldamping is a fuction of.......

A.mass and stiffness

B.mass and damping coefficient

C.stiffness and natural frequency

D.natural frequency and damping coefficient

E.stiffnessand damping coefficient

A.mass and stiffness

9. The gear box in automobiles is placed between.......

A.the clutch and differential

B.the steering and engine

C.the engine and clutch

D.the differential and Hook;s joint

E.clutch and Hook's joint

C.the engine and clutch

10. The rate of decay of oscillations is known as.......

A.critical damping

B.darnping coefficient

C.transmissibility

D.logarithmic decrement

E.damped oscillations

D.logarithmic decrement