Engineering Drawing Questions and Answers – Types of Coupling

This set of Engineering Drawing Multiple Choice Questions & Answers (MCQs) focuses on “Types of Coupling”.

1. What type of connection is coupling?
a) Permanent connection
b) Temporary connection
c) It can’t connect
d) A connection which can be modified
View Answer

Answer: a
Explanation: Coupling is a linkage between two rotating shafts at the ends. It is a permanent connection, which transmits power. Choosing a correct coupling based on our purpose is mandatory and saves money and time.

2. When do we need to connect two shafts without any mis-alignment, which have collinear axes, which type of couplings is preferable?
a) Flexible coupling
b) Non – aligned coupling
c) Loose couplings
d) Rigid coupling
View Answer

Answer: d
Explanation: When two shafts have collinear axes and are having good lateral and angular alignment can be coupled with rigid couplings. They transmit rotational motion and encourages no mis-alignment.

3. Find the type of coupling the following diagram is representing?
Find the type of coupling the following diagram is representing in figure
a) Split-muff coupling
b) Half-lap muff coupling
c) Butt-muff coupling
d) Flanged coupling
View Answer

Answer: c
Explanation: In the given figure the two ends of the shafts are connected butt against each other, hence this coupling is called butt-muff coupling.
advertisement
advertisement

4. Claw coupling comes under which type of couplings?
a) Rigid coupling
b) Disengaging coupling
c) Flexible coupling
d) Flanged coupling
View Answer

Answer: b
Explanation: Claw couplings have a number of identical claws engaged into corresponding recesses, which helps in the intermittent transmission of power Thus as per requirements the coupled shafts can engage and disengage. Hence these couplings come under disengaging couplings.

5. Couplings used in marine propeller shafts are ________
a) Solid flanged couplings
b) Half-lap muff couplings
c) Butt muff couplings
d) Cone coupling
View Answer

Answer: a
Explanation: Coupling marine propeller shafts requires greater robustness and reliability. Hence solid flanged couplings are used.

6. When two shafts are not coaxial which type of couplings are used?
a) Rigid couplings
b) Flexible couplings
c) Dis-engaging couplings
d) Non-aligned couplings
View Answer

Answer: d
Explanation: When two shafts axes are not coaxial then non-flanged couplings are used. Universal couplings cushion coupling, and Oldham couplings are non-flanged coupling types.

7. ______________ couplings allow the relative rotation or any changes in the alignments of the shafts to a certain limit.
a) Rigid couplings
b) Muff couplings
c) Flexible couplings
d) Flanged couplings
View Answer

Answer: c
Explanation: A flexible coupling contains a flexible medium which can take care of the changes in the misalignments. Perfect alignment is not possible due to wear and tear and other reasons, hence flexible couplings are used in such situations.
advertisement

8. Find the type of coupling the following diagram is representing.
The type of coupling the following diagram is representing is Half lap coupling
a) Butt muff coupling
b) Bush pin coupling
c) Split muff coupling
d) Half lap coupling
View Answer

Answer: d
Explanation: For the given diagram, in the ends of the shafts, for a short length taper is provided where shafts are allowed to overlap. This happens in half-lap coupling.

9. In compression couplings, friction between the shafts and sleeves aids in power transmission.
a) True
b) False
View Answer

Answer: a
Explanation: In compression couplings, we use compressible steel sleeve to couple the shafts at the end, where friction acts, which aids in power transmission.
advertisement

10. In which of the following couplings, two forks, which are keyed to the shafts, are pin joined to a central block.
a) Rigid coupling
b) Muff coupling
c) Flanged coupling
d) Universal coupling
View Answer

Answer: d
Explanation: In universal coupling, forks are keyed at the ends of the shafts and then they are pin joined to a central block.

11. Which of the coupling is used to couple the two shafts which are parallel to each other and the axes of shafts are separated by a distance.
a) Muff couplings
b) Cone couplings
c) Claw coupling
d) Oldham coupling
View Answer

Answer: d
Explanation: In Oldham coupling, two shafts which are parallel to each other but are separated by a distance are coupled. They can take angular and axial misalignment.

12. Application of Oldham couplings should be free from backlash.
a) True
b) False
View Answer

Answer: a
Explanation: Oldham coupling is designed in a way they are used for zero-backlash performances. Springs are used in order to reduce couplings backlash.

13. The H.P rating for the cushion coupling is ________
a) 0.2 to 1
b) 100 to 450
c) 0.2 to 450
d) 20 to 200
View Answer

Answer: c
Explanation: Cushion couplings are the most commonly used flexible couplings which are used for coupling of non-aligned type of shafts. The H.P rating for this coupling is 0.2 to450.

14. Claw coupling is used for slow seed shafts.
a) False
b) True
View Answer

Answer: b
Explanation: Claw couplings have identical claws on one of the flanges which engage into the corresponding recesses of another flange. These are used for slow speed shafts.

15. Which type of motion is easily transmitted through universal coupling?
a) Axial motion
b) Rotational motion
c) Axial and rotational motion
d) It cannot transmit any type of motion
View Answer

Answer: b
Explanation: Universal coupling has forks keyed to the end of the shafts which are pin joined to the central block. Hence these universal couplings are capable of transmitting rotational motion.

Sanfoundry Global Education & Learning Series – Engineering Drawing.

To practice all areas of Engineering Drawing, here is complete set of 1000+ Multiple Choice Questions and Answers.

If you find a mistake in question / option / answer, kindly take a screenshot and email to [email protected]

advertisement
advertisement
Subscribe to our Newsletters (Subject-wise). Participate in the Sanfoundry Certification contest to get free Certificate of Merit. Join our social networks below and stay updated with latest contests, videos, internships and jobs!

Youtube | Telegram | LinkedIn | Instagram | Facebook | Twitter | Pinterest
Manish Bhojasia - Founder & CTO at Sanfoundry
Manish Bhojasia, a technology veteran with 20+ years @ Cisco & Wipro, is Founder and CTO at Sanfoundry. He lives in Bangalore, and focuses on development of Linux Kernel, SAN Technologies, Advanced C, Data Structures & Alogrithms. Stay connected with him at LinkedIn.

Subscribe to his free Masterclasses at Youtube & discussions at Telegram SanfoundryClasses.