THEORY OF MACHINE QUIZ

The equivalent length of a simple pendulum which gives the same frequency as a compound pendulum is

h/(kG² + h²)

(kG² + h²)/h

h²/(kG² + h²)

(kG² + h²)/h²

TRUE ANSWER : ?
YOUR ANSWER : ?

In a system subjected to damped forced vibrations, the ratio of maximum displacement to the static deflection is known as

Magnification factor

Logarithmic decrement

Critical damping ratio

Damping factor

TRUE ANSWER : ?
YOUR ANSWER : ?

A mechanism is an assemblage of

All of these

Two links

Four or more than four links

Three links

TRUE ANSWER : ?
YOUR ANSWER : ?

Hart mechanism has

Six links

Eight links

Four links

Twelve links

TRUE ANSWER : ?
YOUR ANSWER : ?

When the speed of the engine fluctuates continuously above and below the mean speed, the governor is said to be

Hunt

Unstable

Isochronous

Stable

TRUE ANSWER : ?
YOUR ANSWER : ?

The velocity of sliding of meshing gear teeth is(Where ω₁ and ω₂ are angular velocities of meshing gears and ‘y’ is distance between point of contact and the pitch point)

(ω₁ × ω₂) y

(ω₁ + ω₂) y

(ω₁/ω₂) y

(ω₁ + ω₂)/y

TRUE ANSWER : ?
YOUR ANSWER : ?

The main disadvantage of the sliding pair is that it is

Wears rapidly

Bulky

Both (A) and (B) above

Difficult to manufacture

TRUE ANSWER : ?
YOUR ANSWER : ?

The Ackerman steering gear mechanism is preferred to the Davis steering gear mechanism, because

Both (A) and (B)

The Ackerman steering gear consists of turning pairs

Whole of the mechanism in the Ackerman steering gear is on the back of the front wheels

The Ackerman steering gear is most economical

TRUE ANSWER : ?
YOUR ANSWER : ?

If the damping factor for a vibrating system is unity, then the system will be

Over damped

Critically damped

Under damped

Without vibrations

TRUE ANSWER : ?
YOUR ANSWER : ?

The height of a Watt's governor is

Directly proportional to (speed)²

Inversely proportional to speed

Inversely proportional to (speed)²

Directly proportional to speed

TRUE ANSWER : ?
YOUR ANSWER : ?

↑