MACHINE DESIGN QUIZ

The dedendum circle diameter is equal to (where φ = Pressure angle)

Addendum circle diameter × cosφ

Pitch circle diameter × sinφ

Clearance circle diameter × cosφ

Pitch circle diameter × cosφ

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The ratio of circumferential stress to longitudinal stress in a thin cylinder subjected to an internal pressure is

1

43832

4

2

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In thrust bearings, the load acts

Perpendicular to the axis of rotation

Along the axis of rotation

Parallel to the axis of rotation

In any direction

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When a shaft is subjected to combined twisting moment (T) and bending moment (M), then the equivalent twisting moment is equal to

M + √(M² + T²)

(1/2) × [M + √(M² + T²)]

√(M² + T²)

(1/2) × √(M² + T²)

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The design of pin of a rocker arm of an I.C. engine is based on

Bearing failure

Shearing failure

Bending failure

All of these

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Idler pulley is used for

All of these

Increasing velocity ratio

For applying tension

Changing the direction of motion of belt

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The permissible stress for carbon steel under static loading is generally taken as

2000-3000 kg/m²

3000-4000 kg/cm²

7500-10,000 kg/cm²

4000-4500 kg/cm²

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According to Indian standard specifications, 100 H6/g5 means that the

Difference between the actual size and basic size is 100 mm

Basic size is 100 mm

Actual size is 100 mm

None of these

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In worm gears, the angle between the tangent to the pitch helix and an element of the cylinder, is known as

Helix angle

None of these

Pressure angle

Pitch lead angle

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If a material fails below its yield point, failure would be due to

Creep

Fatigue

Sudden loading

Straining

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