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Mechanical Engineering - Machine Design

Exercise : Machine Design - Section 8
11.
The pressure angle of a cam is the angle between the direction of the follower motion and a normal to the pitch curve.
Correct
Incorrect
Answer: Option
Explanation:
No answer description is available. Let's discuss.
12.
A fast and loose pulley drive is used when
shafts are arranged parallel and rotate in the opposite directions
shafts are arranged parallel and rotate in the same directions
shafts are arranged at right angles and rotate in one definite direction
driven shaft is to be started or stopped whenever desired without interferring with the driving shaft
Answer: Option
Explanation:
No answer description is available. Let's discuss.
13.
Which of the following screw thread is adopted for power transmission in either direction?
Acme threads
Square threads
Buttress threads
Multiple threads
Answer: Option
Explanation:
No answer description is available. Let's discuss.
14.
In the assembly of pulley, key and shaft
pulley is made the weakest
key is made the weakest
key is made the stongest
all the three are designed for equal strength
Answer: Option
Explanation:
No answer description is available. Let's discuss.
15.
According to I.B.R., the thickness of the boiler shell should not be less than
4 mm
5 mm
6 mm
7 mm
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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