1. Cotter joint is used when the members are subjected to which type of stress?
a) Axial tensile
b) Axial compressive
c) Axial tensile or compressive
d) None of the mentioned
Answer:
c) Axial tensile or compressive
Explanation:
When axial forces are applied, the Cotter joint is utilized.
2. The principle of wedge action is used in the cotter joint.
a) True
b) False
Answer:
a) True
Explanation:
The cotter joint is tightened as a result of the wedge motion.
3. Can the cotter joint be used to connect the slide spindle and fork of the valve mechanism?
a) True
b) False
Answer:
a) True
Explanation:
A cotter joint can be used as long as there are axial forces acting on it.
4. Which of the following is not a part of the cotter joint?
a) Socket
b) Spigot
c) Cotter
d) Collar
Answer:
d) Collar
Explanation:
In the case of a cotter joint, it is unnecessary to describe the collar alone. It has to be a spigot collar or a socket collar, depending on the situation.
5. Determine the width of the cotter used in the cotter joint connecting two rods subjected to axial load of 50kN and permissible shear stress in the cotter is 50N/(mm² ). Given the thickness of cotter=10mm
a) 5omm
b) 100mm
c) 150mm
d) 25mm
Answer:
a) 5omm
Explanation:
Because cotter is subjected to double shear, its breadth is equal to P/(2*τ*t).
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