MACHINE DESIGN QUIZ

The material used for brake lining should have __________ coefficient of friction.

Moderate

Low

None of these

High

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YOUR ANSWER : ?

In case of V belt drive

The belt should touch the bottom of groove in the pulley

The belt should not touch the bottom of groove in the pulley

The belt should not touch the sides of groove in the pulley

None of these

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YOUR ANSWER : ?

A steel containing _________ 0.8% carbon is known as hypo-eutectoid steel.

Greater than

None of these

Equal to

Less than

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When the bolt is very yielding as compared to the connected members, then the resultant load on the bolt will be equal to the

Sum of the initial tension and external load applied

Initial tension or external load, whichever is greater

External load applied

Initial tension

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YOUR ANSWER : ?

Euler’s formula for a mild steel column is not valid if the slenderness ratio is

120

90

100

60

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YOUR ANSWER : ?

Shear stress theory is applicable for

Elastic materials

Ductile materials

All of these

Brittle materials

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The bending stress in a curved beam is

Maximum at the neutral axis

None of these

Zero at the centroidal axis

Zero at the point other than centroidal axis

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YOUR ANSWER : ?

The centrifugal tension in belts

Increases the power transmitted

Increase the wrap angle

Decreases the power transmitted

Increases the belt tension without increasing power transmission

TRUE ANSWER : ?
YOUR ANSWER : ?

A circular shaft can transmit a torque of 5 kN-m. If the torque is reduced to 4 kN-m, then the maximum value of bending moment that can be applied to the shaft is

2 kN-m

1 kN-m

4 kN-m

3 kN-m

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YOUR ANSWER : ?

The size of a cam depends upon

Prime circle

Pitch circle

Base circle

Pitch curve

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YOUR ANSWER : ?