A torsional system with discs of moment of inertia I₁ and I₂ as shown in the below figure, is gear driven such that the ratio of speed of shaft B to shaft A is 'G'. Neglecting the inertia of gears, the equivalent inertia of disc on shaft B at the speed of shaft A is equal to

Theory of Machine
A torsional system with discs of moment of inertia I₁ and I₂ as shown in the below figure, is gear driven such that the ratio of speed of shaft B to shaft A is 'G'. Neglecting the inertia of gears, the equivalent inertia of disc on shaft B at the speed of shaft A is equal to

G².I₂

I₂/G

I₂/G²

G.I₂

G².I₂

I₂/G

I₂/G²

G.I₂

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Theory of Machine
Which of the following statements regarding laws governing the friction between dry surfaces are correct?

All of these

The friction force is directly proportional to the normal force.

The friction force is dependent on the materials of the contact surfaces.

The friction force is independent of me area of contact.

All of these

The friction force is directly proportional to the normal force.

The friction force is dependent on the materials of the contact surfaces.

The friction force is independent of me area of contact.

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Theory of Machine
Balancing of rotating and reciprocating parts of an engine is necessary when it runs at

Moderate speed

Highs peed

Any one of these

Slow speed

Moderate speed

Highs peed

Any one of these

Slow speed

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Theory of Machine
In a four stroke I.C. engine, the turning moment during the compression stroke is

Negative during major portion of the stroke

Positive throughout

Positive during major portion of the stroke

Negative throughout

Negative during major portion of the stroke

Positive throughout

Positive during major portion of the stroke

Negative throughout

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Theory of Machine
Sense of tangential acceleration of a link

Is perpendicular to that of velocity

Could be either same or opposite to velocity

Is opposite to that of velocity

Is same as that of velocity

Is perpendicular to that of velocity

Could be either same or opposite to velocity

Is opposite to that of velocity

Is same as that of velocity

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Theory of Machine
In a four-bar chain it is required to give an oscillatory motion to the follower for a continuous rotation of the crank. For the lengths of 50 mm of crank and 70 mm of the follower, determine theoretical maximum length of coupler. The distance between fixed pivots of crank and followers is

45 mm

95 mm

Slightly more than 95 mm

Slightly less than 95 mm

45 mm

95 mm

Slightly more than 95 mm

Slightly less than 95 mm

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Theory of Machine

Theory of Machine A torsional system with discs of moment of inertia I₁ and I₂ as shown in the below figure, is gear driven such that the ratio of speed of shaft B to shaft A is 'G'. Neglecting the inertia of gears, the equivalent inertia of disc on shaft B at the speed of shaft A is equal to

Theory of Machine Which of the following statements regarding laws governing the friction between dry surfaces are correct?

Theory of Machine Balancing of rotating and reciprocating parts of an engine is necessary when it runs at

Theory of Machine In a four stroke I.C. engine, the turning moment during the compression stroke is

Theory of Machine Sense of tangential acceleration of a link

Theory of Machine
A torsional system with discs of moment of inertia I₁ and I₂ as shown in the below figure, is gear driven such that the ratio of speed of shaft B to shaft A is 'G'. Neglecting the inertia of gears, the equivalent inertia of disc on shaft B at the speed of shaft A is equal to

Theory of Machine
Which of the following statements regarding laws governing the friction between dry surfaces are correct?

Theory of Machine
Balancing of rotating and reciprocating parts of an engine is necessary when it runs at

Theory of Machine
In a four stroke I.C. engine, the turning moment during the compression stroke is

Theory of Machine
Sense of tangential acceleration of a link