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Machinist
Machinist Set-2
Worms and Keys
1

Worms and Keys MCQ with Answers

1) What is the use of splines on a shaft?

To slide along longitudinally

Change the direction of rotation

As idler

Spline hub fixed stationary

Answer is:

To slide along longitudinally

Explanation:

.

Worms and Keys MCQ with Answers

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Related Worms and Keys MCQ with Answers

2) Which method is suitable for worm wheel machining?

Shaping

Hobbing

Grinding

Turning

Answer is:

Hobbing

3) Which surface of a worm gear is termed as throat?

Cylindrical

Flat

Concave

Convex

Answer is:

Concave

4) What is 'Normal pitch' in worm wheel?

Axial pitch x sine of helix angle

Axial pitch x cosine of helix angle

Axial pitch x tan of helix angle

Axial pitch x cosec of helix angle

Answer is:

Axial pitch x cosine of helix angle

5) What is the formula to calculate outside diameter of worm wheel?

Throat radius - module

Throat radius + module

Throat diameter + module

Throat diameter -module

Answer is:

Throat diameter + module

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