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Machine Design

Machine Design
Aircraft body is usually fabricated by

Welding
Pre-casting
Casting
Riveting

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Machine Design
A shaft coupling should

All of these
Hold the shafts in perfect alignment
Be easy to connect or disconnect
Transmit full power of the shaft

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Machine Design
The cam follower generally used in automobile engines is

Roller follower
Spherical faced follower
Knife edge follower
Flat faced follower

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Machine Design
The speed of the sprocket reduces as the chain pitch __________ for a given number of teeth.

None of these
Decreases
Remain same
Increases

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Machine Design
When bevel gears connect two shafts whose axes intersect at an angle greater than a right angle and one of the bevel gears has a pitch angle of 90°, then they are known as

Angular bevel gears
Internal bevel gears
Crown bevel gears
Mitre gears

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Machine Design
The maximum bending stress in a curved beam having symmetrical section always occur at the

Centroidal axis
Inside fiber
Neutral axis
Outside fiber

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