THEORY OF MACHINE QUIZ

The acceleration of a particle at any instant has two components i.e. radial component and tangential component. These two components will be

Opposite to each other

Perpendicular to each other

Inclined at 45°

Parallel to each other

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YOUR ANSWER : ?

The indicator using Watt mechanism is known as

Simplex indicator

Richard indicator

Thomson indicator

Thompson indicator

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YOUR ANSWER : ?

In a four bar chain or quadric cycle chain

Two are turning pairs and two are sliding pairs

One is a turning pair and three are sliding pairs

Each of the four pairs is a turning pair

Three are turning pairs and one is a sliding pair

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following statement is correct for involute gears?

A convex flank is always in contact with concave flank.

The pressure angle is constant throughout the teeth engagement.

The variation in centre distance of shafts increases radial force.

The interference is inherently absent.

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YOUR ANSWER : ?

A rigid body possesses ________degrees of freedom

Six

One

Four

Two

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The velocity of the belt for maximum power is (where m = Mass of the belt in kg per meter length)

T/3

√(3m/T)

√(T/3m)

(T.g)/3

TRUE ANSWER : ?
YOUR ANSWER : ?

A body in motion will be subjected to Coriolis acceleration when that body is

In plane translation with variable velocity

In plane motion which is a resultant of plane translation and rotation

In plane rotation with variable velocity

Restrained to rotate while sliding over another body

TRUE ANSWER : ?
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A disturbing mass m₁ attached to the rotating shaft may be balanced by a single mass m₂ attached in the same plane of rotation as that of m₁, such that (where r₁ and r₂ are the radii of rotation of m₁ and m₂ respectively)

m₁ r₂ = m₂ r₁

m₁ r₁ = m₂ r₂

m₁ m₂ = r₁ r₂

None of these

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The example of higher pair is

Gears, cams

Belt, rope and chain drives

Ball and roller bearings

All of these

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The Klein's diagram is used when

Crank has uniform angular acceleration

Crank has nonuniform angular acceleration

Crank has nonuniform angular velocity

Crank has uniform angular velocity

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