Machine Design
When the fulcrum is in between the load and effort, the lever is said to be of

Any one of these
Third type
Second type
First type

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Machine Design
In replacing the V-belts, a complete set of new belts is used instead of replacing a single damaged belt because

New and old belts will cause vibrations
Only one belt cannot be fitted with other used belts
Belts are available in sets
The new belt will carry more than its share and result in short life

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Machine Design
Cold working

Increases the fatigue strength
Alone has no influence on fatigue strength
Decreases the fatigue strength
Has no influence on fatigue strength

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