1) What does the designation M 16 x 2 indicate?
a. I.S.O. Metric fine thread
b. I.S.O. Metric coarse thread
c. B.S.F. Metric coarse thread
d. B.S.F Metric fine thread
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Answer
Explanation
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ANSWER: I.S.O. Metric fine thread
Explanation:
No explanation is available for this question!
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2) Drilling axial hole is a method used to achieve ______
a. uniform strength
b. uniform stress
c. uniform toughness
d. all of the above
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Answer
Explanation
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ANSWER: uniform strength
Explanation:
No explanation is available for this question!
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3) Which among the following statements is/are true?
1. Fracture of bolts occurs due to uneven distribution of impact energy
2. Castle nut is a locking device
3. Fine threads are stronger than coarse threads
4. Coarse threads apply more resistance when loosened
a. Statement 2 and Statement 3
b. Statement 1 and Statement 2
c. Statement 3 and Statement 4
d. All of the above
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Answer
Explanation
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ANSWER: Statement 1 and Statement 2
Explanation:
No explanation is available for this question!
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4) Which of the following threads have greater pitch and lead angle for a given nominal diameter when compared with each other?
a. Coarse threads
b. Fine threads
c. Both a. and b.
d. None of the above
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Answer
Explanation
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ANSWER: Coarse threads
Explanation:
No explanation is available for this question!
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5) Which type of screw fasteners are threaded at both the ends?
a. Through bolt
b. Tap bolt
c. Studs
d. All of the above
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Answer
Explanation
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ANSWER: Studs
Explanation:
No explanation is available for this question!
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6) Which type of screw fasteners are threaded through out its length?
a. Cap screws
b. Set screws
c. Studs
d. Tap bolt
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Answer
Explanation
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ANSWER: Set screws
Explanation:
No explanation is available for this question!
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7) What is the approximate nominal diameter for coarse threads?
a. d = 1.136 d c
b. d = 1.59 d c
c. d = 1.19 d c
d. d = 0.5 d c
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Answer
Explanation
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ANSWER: d = 1.19 dc
Explanation:
No explanation is available for this question!
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8) Threads used in screw fasteners are ______
a. having high strength
b. having low efficiency
c. single start type
d. all of the above
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Answer
Explanation
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ANSWER: all of the above
Explanation:
No explanation is available for this question!
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9) Which among the following is the condition to avoid separation of connected members?
a. Force acting on the connected members should be negative
b. Force acting on the connected members should be positive
c. Force acting on the connected members should be neither positive nor negative
d. None of the above
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Answer
Explanation
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ANSWER: Force acting on the connected members should be negative
Explanation:
No explanation is available for this question!
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10) When a coupler nut is subjected to crushing stress, crushing failure can be avoided if _____
a. crushing stress induced is more than permissible crushing stress in the nut
b. permissible crushing stress is more than crushing stress induced in the threads
c. crushing stress induced is equal to permissible crushing stress
d. all of the above
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Answer
Explanation
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ANSWER: permissible crushing stress is more than crushing stress induced in the threads
Explanation:
No explanation is available for this question!
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