- $$\frac{{\text{d}}}{8}$$
- $$\frac{{\text{d}}}{6}$$
- $$\frac{{\text{d}}}{4}$$
- $$\frac{{\text{d}}}{2}$$
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When a hole of diameter ‘d’ is punched in a metal of thickness 't', then the force required to punch a hole is equal to (where $${\tau _{\text{u}}}$$ = Ultimate shear strength of the material of the plate)?
Answer: Option 2 Let'
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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?
Answer: Option 3 Let'
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The natural frequency of free torsional vibrations of a shaft is equal to (where q = Torsional stiffness of the shaft and $$I$$ = Mass moment of inertia of the disc attached at the end of a shaft)?
Answer: Option 3 Let'
1 Answers 1 views
The radius of a friction circle for a shaft rotating inside a bearing is (where r = Radius of shaft and $$\tan \varphi $$ = Coefficient of friction between the shaft and bearing)?
Answer: Option 1 Let'
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A plate with an elliptical hole in the centre, with semi-major axis (a) perpendicular to the direction of loading and semi-minor axis (b) along the direction of loading, is subjected to a pull P. The maximum stress induced at the edge of the hole is equal to (where $$\sigma $$ = Stress for a plate with no hole i.e. nominal stress)?
Answer: Option 2 Let'
1 Answers 1 views
In order to avoid tearing of the plate at an edge, the distance from the centre line of the rivet hole to the nearest edge of the plate should be equal to (where d = Diameter of rivet hole)?
Answer: Option 2 Let'
1 Answers 1 views
A tapered key which fits in a key way in the hub and the bottom of which is shaped to fit the curved surface of the shaft, is known as,?
Answer: Option 1 Let'
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A tapered key which fits in a key way in the hub and is flat on the shaft, is known as?
Answer: Option 4 Let'
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A tapered key which fits in a key-way in the hub and is flat on the shaft, is known as?
Answer: Option 3 Let'
1 Answers 1 views
A taper key which fits half in the key way of the hub and half in the key way of shaft, is known as?
Answer: Option 2 Let'
1 Answers 1 views