1000+ Mechanisms and Machines Quiz Questions and Answers Pdf - 1

Question: 1

The critical speed depends on

(A) mass, stiffness and eccentricity

(B) mass and stiffness

(C) stiffness

(D) mass

Question: 2

In forced vibrations the magnitude of damping force at resonance equals

(A) spring force

(B) zero

(C) impressed force

(D) inertia force

Question: 3

In involute gears the pressure angel is

(A) always variable

(B) always constant

(C) dependent on the size of teeth

(D) dependent on the size of gears

Question: 4

Most of the engines generally

(A) do not require balancing of secondary forces and couples

(B) require balancing of both secondary forces and couples

(C) require balancing of secondary couples

(D) require balancing of secondary forces

Question: 5

Larger pressure angle results in

(A) smaller size of gear

(B) bigger size of gear

(C) little pulsating motion

(D) wider base and stronger teeth