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Question
The height of each tooth of a broach is
Options
A. same throughout
B. in progressively decreasing order
C. in progressively increasing order
D. none of these
Correct Answer
in progressively increasing order
More questions
1. The relation between the tool life (
T
) in minutes and cutting speed (
V
) in m/min is (where
n
= An exponent, which depends upon the tool and workpiece, and
C
= A constant)
Options
A.
V
n
T
=
C
B.
VT
n
=
C
C.
V
n
/
T
=
C
D.
V
/
T
n
=
C
Show Answer
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Discuss
Correct Answer:
VT
n
=
C
2. The casting method adopted for ornaments and toys of non-ferrous alloys, is
Options
A. permanent mould casting
B. slush casting
C. die casting
D. centrifugal casting
Show Answer
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Discuss
Correct Answer: slush casting
3. The ratio of the cumulative heat drop to the isentropic heat drop is called reheat factor.
Options
A. Yes
B. No
Show Answer
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Correct Answer: Yes
4. The hoop stress in a thin cylindrical shell is
Options
A. longitudinal stress
B. compressive stress
C. radial stress
D. circumferential tensile stress
Show Answer
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Discuss
Correct Answer: circumferential tensile stress
5. The scavenging efficiency of a four stroke cycle diesel engine is
Options
A. below 50%
B. between 50 and 85%
C. between 85 and 95%
D. between 95 and 100%
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Correct Answer: between 95 and 100%
6. In a jet propulsion unit, the products of combustion after passing through the gas turbine are discharged into
Options
A. atmosphere
B. vacuum
C. discharge nozzle
D. back to the compressor
Show Answer
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Correct Answer: discharge nozzle
7. The average value of diagram factor lies between
Options
A. 0.2 to 0.5
B. 0.5 to 0.65
C. 0.65 to 0.9
D. 0.8 to 1.2
Show Answer
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Correct Answer: 0.65 to 0.9
8. If the section modulus of a beam is increased, the bending stress in the beam will
Options
A. not change
B. increase
C. decrease
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Correct Answer: decrease
9. The correct way to rectify an imbalanced wheel is to
Options
A. adjust the tyre pressure
B. rotate the tyres
C. adjust the damper spring tension
D. attach appropriate weights to the wheel at appropriate positions
Show Answer
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Discuss
Correct Answer: attach appropriate weights to the wheel at appropriate positions
10. The force, by which the body is attracted, towards the centre of the earth, is called
Options
A. impulsive force
B. mass
C. weight
D. momentum
Show Answer
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Discuss
Correct Answer: weight
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