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Machine Design

Machine Design
The wear load should be __________ the dynamic load.

Less than
Equal to
Greater than
None of these

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Machine Design
Idler pulley is used for

For applying tension
Changing the direction of motion of belt
All of these
Increasing velocity ratio

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Machine Design
When spring index increases, the value of Wahl's stress factor

Increases linearly
Increases exponentially
Remains same
Decreases linearly

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Machine Design
The included angle for the British Association thread is

55°
47.3°
60°
29°

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Machine Design
According to maximum normal stress theory, the maximum normal stress in the shaft is

σ + √(σ² × 4τ²)
√(σ² × 4τ²)
(1/2) × √(σ² × 4τ²)
(1/2) × [σ + √(σ² × 4τ²)]

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Machine Design
The radial distance of a tooth from the pitch circle to the top of the tooth is called

Clearance
Dedendum
Addendum
Working depth

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