Mechanical Engineering - Strength of Materials

41. 

If the tearing efficiency of a riveted joint is 50%, then ratio of rivet hole diameter to the pitch of rivets is

A. 0.20
B. 0.30
C. 0.50
D. 0.60

Answer: Option C

Explanation:

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42. 

The rectangular beam 'A' has length l, width b and depth d. Another beam 'B' has the same length and depth but width is double that of 'A'. The elastic strength of beam 'B' will be __________ as compared to beam A.

A. same
B. double
C. four times
D. six times

Answer: Option B

Explanation:

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43. 

In a simple bending of beams, the stress in the beam varies

A. linearly
B. parabolically
C. hyperbolically
D. elliptically

Answer: Option A

Explanation:

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44. 

A beam supported at its both ends is not a simply supported beam.

A. True
B. False

Answer: Option B

Explanation:

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45. 

The stress at which the extension of the material takes place more quickly as compared to the increase in load, is called

A. elastic limit
B. yield point
C. ultimate point
D. breaking point

Answer: Option B

Explanation:

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