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Mechanical Engineering Exam  >  Mechanical Engineering Tests  >  Topicwise Question Bank for Mechanical Engineering  >  Test: Shafts, Keys & Couplings - 3 - Mechanical Engineering MCQ

Test: Shafts, Keys & Couplings - 3 - Mechanical Engineering MCQ


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20 Questions MCQ Test Topicwise Question Bank for Mechanical Engineering - Test: Shafts, Keys & Couplings - 3

Test: Shafts, Keys & Couplings - 3 for Mechanical Engineering 2024 is part of Topicwise Question Bank for Mechanical Engineering preparation. The Test: Shafts, Keys & Couplings - 3 questions and answers have been prepared according to the Mechanical Engineering exam syllabus.The Test: Shafts, Keys & Couplings - 3 MCQs are made for Mechanical Engineering 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Shafts, Keys & Couplings - 3 below.
Solutions of Test: Shafts, Keys & Couplings - 3 questions in English are available as part of our Topicwise Question Bank for Mechanical Engineering for Mechanical Engineering & Test: Shafts, Keys & Couplings - 3 solutions in Hindi for Topicwise Question Bank for Mechanical Engineering course. Download more important topics, notes, lectures and mock test series for Mechanical Engineering Exam by signing up for free. Attempt Test: Shafts, Keys & Couplings - 3 | 20 questions in 60 minutes | Mock test for Mechanical Engineering preparation | Free important questions MCQ to study Topicwise Question Bank for Mechanical Engineering for Mechanical Engineering Exam | Download free PDF with solutions
Test: Shafts, Keys & Couplings - 3 - Question 1
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Match the following lists pertaining to standard proportions for various dimensions of the bushed-pin flexible coupling:
List-I
A. Outside diameter of hub
B. Length of hub
C. Pitch circle diameters of pins
D. Thickness of output flange
List-II
1. 1.5d
2. 4d
3. 0.5d
4. 2d to 3d
5. 3d to 4d
6. 2d
7. 0.7d
Codes:
     A B C D
(a) 6 1 5 3
(b) 2 6 4 7
(c) 2 1 5 3
(d) 6 2 4 7

Detailed Solution for Test: Shafts, Keys & Couplings - 3 - Question 1

where d is the diameter of shaft.

Test: Shafts, Keys & Couplings - 3 - Question 2
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A sleeve or muff coupling is designed as

Detailed Solution for Test: Shafts, Keys & Couplings - 3 - Question 2

Torsional shear stress induced in the sleeve is checked by the following equations.

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Test: Shafts, Keys & Couplings - 3 - Question 3
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The outer diameter of sleeve in the design of sleeve coupling is taken as
where, d is the diameter of shaft

Test: Shafts, Keys & Couplings - 3 - Question 4
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If d is the diameter of shaft, then in designing a sleeve coupling, the length of sleeve is prescribed by the identity
Test: Shafts, Keys & Couplings - 3 - Question 5
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Which is not the correct proportion of the solid flanged (marine type flange) coupling in terms of diameter d of the shaft?
Detailed Solution for Test: Shafts, Keys & Couplings - 3 - Question 5

Thickness of flange = 0.33 d

Test: Shafts, Keys & Couplings - 3 - Question 6
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A key connecting a flange coupling to a shaft is likely to fail in
Test: Shafts, Keys & Couplings - 3 - Question 7
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The bolts in rigid flanged coupling connecting two shafts transmitting power are subjected to
Test: Shafts, Keys & Couplings - 3 - Question 8
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Which of the following is a flexible coupling
Detailed Solution for Test: Shafts, Keys & Couplings - 3 - Question 8

Odlham coupling is the flexible coupling used to connect two shaft have lateral misalignment.

Test: Shafts, Keys & Couplings - 3 - Question 9
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Which material is used for bushes in the bushed pin type of flexible coupling
Detailed Solution for Test: Shafts, Keys & Couplings - 3 - Question 9

To have some flexibility rubber is used as a material for bushes in bushed pin type flexible coupling.

Test: Shafts, Keys & Couplings - 3 - Question 10
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In the assembly design of shaft, pulley and key the weakest member is
Detailed Solution for Test: Shafts, Keys & Couplings - 3 - Question 10

Key is the weakest member in the assembly of shaft, pulley and key. Key acts as a safety device, whenever there is excess load appears on the pulley key first and it keeps safer to shift and pulley.

Test: Shafts, Keys & Couplings - 3 - Question 11
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The shearing area of a key of length l breadth ’b ’ depth ‘h’ is equal to
Detailed Solution for Test: Shafts, Keys & Couplings - 3 - Question 11

Shearing area = b x L

Test: Shafts, Keys & Couplings - 3 - Question 12
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The key shown in the above figure is a
Detailed Solution for Test: Shafts, Keys & Couplings - 3 - Question 12

Woodruff key is a sunk key, in the form of an almost semi-circular disc of uniform thickness. Due to its shape it has self aligning property.

Test: Shafts, Keys & Couplings - 3 - Question 13
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Which of the following key have self aligning property
Test: Shafts, Keys & Couplings - 3 - Question 14
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A key made from a cylindrical disc having segmental cross-section is know as
Detailed Solution for Test: Shafts, Keys & Couplings - 3 - Question 14

Test: Shafts, Keys & Couplings - 3 - Question 15
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Which key transmits power through frictional resistance only
Detailed Solution for Test: Shafts, Keys & Couplings - 3 - Question 15

Saddle key is a key that fits in the key way of the hub only. In this case there is no keyway provided on the shaft and friction between shaft, key and hub prevents relative motion between the shaft and the hub and power is transmitted by means of friction only.

Test: Shafts, Keys & Couplings - 3 - Question 16
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Kennedy keys are used for applications like
Test: Shafts, Keys & Couplings - 3 - Question 17
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Two shaft will have equal strength if
Test: Shafts, Keys & Couplings - 3 - Question 18
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Which one of the following loading is considered for design of axles
Detailed Solution for Test: Shafts, Keys & Couplings - 3 - Question 18

Axle is used to support the wheel hence it is subjected to only bending moment. Since it has no role to play in transmission of power hence it is not subjected to twisting moment.

Test: Shafts, Keys & Couplings - 3 - Question 19
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When a shaft transmits power through gears the shaft experience
Test: Shafts, Keys & Couplings - 3 - Question 20
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Match List-I with List-ll and select the correct answer using the codes given below:
List-I
A. Rigid coupling
B. Oldham coupling
C. Universal joint
D. Gear coupling
List-ll
1. Permits greater torque capacity for a given size
2. Permits substantial angular misalign-ment of intersecting axes
3. Permits substantial lateral offset and little angular alignment
4. Permits almost no misalignment
Codes:
    A B C D
(a) 1 2 3 4
(b) 4 2 3 1
(c) 1 3 2 4
(d) 4 3 2 1
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