Practice Test: Question Set - 02
1. The keyway,
- (A) Reduces
strength of shaft
- (B) Reduces
rigidity of shaft
- (C) Increases
stress concentration
- (D) All
of above
2. While designing a flange coupling, care is taken so that
- (A) Shaft
is the weakest component
- (B) Bolts
are the weakest component
- (C) Key
is the weakest component
- (D) The
flange is the weakest component
3. Two shafts A and B are made of same material. The diameter of shaft A is twice that of B. The torque transmitted by shaft A will be
- (A) Twice that
of B
- (B) Four times
that of B
- (C) Eight times
that of B
- (D) Sixteen
times that of B
4. Maximum shear stress theory is used for
- (A) Cast iron
shafts
- (B) Steel shafts
- (C) Flexible
shafts
- (D) Plastic
shafts
5. The key in the form of semi-circular disk of uniform thickness is called,
- (A) Sunk key
- (B) Feather key
- (C) Woodruff key
- (D) Kennedy key
6. Splines are commonly used in
- (A) Machine tool
gear box
- (B) Automobile
gear box
- (C) Hoist and
crane gear box
- (D) Bicycle
7. In case of clamp coupling, power is transmitted by means of,
- (A) Friction
force
- (B) Shear
resistance
- (C) Crushing
resistance
- (D) None
of the above
8. The angle of twist for a transmission shaft is inversely proportional to
- (A) Shaft
diameter
- (B) (Shaft
diameter)2
- (C) (Shaft
diameter)3
- (D) (Shaft
diameter)4
9. In case of sunk key,
- (A) The keyway
is cut in the shaft only
- (B) The keyway
is cut in the hub only
- (C) The keyway
is cut in both the shaft and the hub
- (D) None of the
above
10. The compressive stress induced in a square key is,
- (A) Equal to
shear stress
- (B) Four times
of shear stress
- (C) Twice of
shear stress
- (D) Half of
shear stress
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