Shafts, Keys And Couplings - 2 | 10 Questions MCQ Test

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This mock test of Shafts, Keys And Couplings - 2 for Mechanical Engineering helps you for every Mechanical Engineering entrance exam. This contains 10 Multiple Choice Questions for Mechanical Engineering Shafts, Keys And Couplings - 2 (mcq) to study with solutions a complete question bank. The solved questions answers in this Shafts, Keys And Couplings - 2 quiz give you a good mix of easy questions and tough questions. Mechanical Engineering students definitely take this Shafts, Keys And Couplings - 2 exercise for a better result in the exam. You can find other Shafts, Keys And Couplings - 2 extra questions, long questions & short questions for Mechanical Engineering on EduRev as well by searching above.

QUESTION: 1

Which of the following factors is considered in selection of the type of key?
1. Power to be transmitted
2. Tighthness of fit
3. Stability of connection
4. Cost
5. Direction of rotation Select the valid factors:

A.
1, 2, 3, and 4
B.
1, 2, 3 and 5
C.
2, 3, 4 and 5
D.
1, 3, 4 and 5

Solution:

QUESTION: 2

The standard taper provided in taper key is

A.
1 : 20
B.
1 : 140
C.
1 : 100
D.
1 : 80

Solution:

QUESTION: 3

The industrial practice is to use a square key with dimension
where, b = width of key
h = height or thickness of key
d = diameter of shaft

Solution:

QUESTION: 4

Suggest the key to be used when relative axial movement of the hub is required

A.
sunk key
B.
tangent key
C.
woodruff key
D.
feather key

Solution:

(i) A woodruff key is a sunk key in the form of an almost semicircular disk of uniform thickness.
(ii) The woodruff key can be used on tapered shaft because it can align by slight rotation in the seat.
(iii) The extra depth of key in the shaft prevents its tendency to slip over the shaft.
(iv) The woodruff key does not permit axial movement between the shaft and the hub.

QUESTION: 5

Which key is preferred for the condition where a large amount of impact type torque is to be transmitted in both directions of rotation?

A.
Woodruff
B.
Feather key
C.
Gib-head key
D.
Tangent key

Solution:

QUESTION: 6

The feather keys are generally

A.
loose in shaft and tight in hub
B.
tight in shaft and loose in hub
C.
loose in both shaft and hub
D.
tight in both shaft and hub

Solution:

QUESTION: 7

Select the odd one out

A.
feather key
B.
saddle key
C.
woodruff key
D.
gib head key

Solution:

The feather key, woodruf key and the gib head key are the sunk keys.
These are half sunk into the shaft and into the hub. Saddle key is sunk into the hub only.

QUESTION: 8

In a flange coupling, the weakest element should be