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Mechanical Engineering - Machine Design

Exercise : Machine Design - Section 6
26.
The velocity factor for very accurately cut and ground metallic gears operating at velocities upto __________ is equal to 6/6 + v.
10 m/s
12.5 m/s
15 m/s
20 m/s
Answer: Option
Explanation:
No answer description is available. Let's discuss.
27.
The power transmitted by means of a belt depends upon
velocity of the belt
tension under which the belt is placed on the pulleys
arc of contact between the belt and the smaller pulley
all of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
28.
Which of the following coupling is used to connect two shafts which have both lateral and angular misalignment ?
Bushed pin type coupling
Universal coupling
Oldham coupling
all of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
29.
In a multiple V-belt drive, when a single belt is damaged, it is preferable to change the complete set in order to
reduce vibration
reduce slip
ensure uniform loading
ensure proper alignment
Answer: Option
Explanation:
No answer description is available. Let's discuss.
30.
A steel containing 0.8% carbon is known as
eutectoid steel
hyper-eutectoid steel
hypo-eutectqid steel
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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