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Mechanical Engineering
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Strength of Materials
See What Others Are Saying!
Question
The neutral axis of a beam is subjected to __________ stress.
Options
A. zero
B. maximum tensile
C. minimum tensile
D. maximum compressive
Correct Answer
zero
More questions
1. The moment of inertia of a solid sphere of mass
m
and radius
r
is
Options
A. 2
mr
2
/3
B. 2
mr
2
/5
C.
mr
2
D.
mr
2
/2
Show Answer
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Discuss
Correct Answer: 2
mr
2
/5
2. The friction experienced by a body, when at rest, is known as
Options
A. static friction
B. dynamic friction
C. limiting friction
D. coefficient of friction
Show Answer
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Discuss
Correct Answer: static friction
3. In a simply supported beam carrying a uniformly distributed load w per unit length, the point of contraflexure
Options
A. lies in the centre of the beam
B. lies at the ends of the beam
C. depends upon the length of beam
D. does not exist
Show Answer
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Discuss
Correct Answer: does not exist
4. Any number of equal divisions can be obtained on milling machine by
Options
A. direct indexing
B. simple indexing
C. compound indexing
D. differential indexing
Show Answer
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Discuss
Correct Answer: simple indexing
5. The process of heat transfer from one particle of the body to another is called conduction, when the particles of the body
Options
A. move actually
B. do not move actually
C. affect the intervening medium
D. does not affect the intervening medium
Show Answer
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Discuss
Correct Answer: do not move actually
6. In flame hardening, oxy-acetylene flame is used.
Options
A. Yes
B. No
Show Answer
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Discuss
Correct Answer: Yes
7. The coefficient of performance (C.O.P.) of a refrigerator working as a heat pump is given by
Options
A. (C.O.P.)
P
= (C.O.P.)
R
+ 2
B. (C.O.P.)
P
= (C.O.P.)
R
+ 1
C. (C.O.P)
P
= (C.O.P)
R
- 1
D. (C.O.P)
P
= (C.O.P)
R
Show Answer
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Discuss
Correct Answer: (C.O.P.)
P
= (C.O.P.)
R
+ 1
8. The ratio of Nusselt number and the product of Reynold's number and Prandtl number is equal to
Options
A. Stanton number
B. Biot number
C. Peclet number
D. Grashoff number
Show Answer
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Discuss
Correct Answer: Stanton number
9. Falling drops of water become spheres due to the property of
Options
A. surface tension of water
B. compressibility of water
C. capillarity of water
D. viscosity of water
Show Answer
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Discuss
Correct Answer: surface tension of water
10. Light weight substances can not be effective moderators.
Options
A. True
B. False
Show Answer
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Discuss
Correct Answer: False
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