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Mechanical Engineering - Machine Design

Exercise : Machine Design - Section 9
11.
The stress which vary from a minimum value to a maximum value of the same nature (i.e. tensile or compressive) is called
repeated stress
yield stress
fluctuating stress
alternating stress
Answer: Option
Explanation:
No answer description is available. Let's discuss.
12.
When the material of key and shaft is same, and the width of key is one-fourth of the diameter of shaft (d), then length of key will be
0.8 d
1.2 d
1.57 d
1.8 d
Answer: Option
Explanation:
No answer description is available. Let's discuss.
13.
The pressure angle for involute gears depends upon the size of teeth.
Agree
Disagree
Answer: Option
Explanation:
No answer description is available. Let's discuss.
14.
When a belt drive is transmitting maximum power,
effective tension is equal to centrifugal tension
effective tension is half of centrifugal tension
driving tension on slack side is equal to centrifugal tension
driving tension on tight side is twice the centrifugal tension
Answer: Option
Explanation:
No answer description is available. Let's discuss.
15.
Gears are casted by
sand mould casting
slush casting
permanent mould casting
centrifugal casting
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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