Electrical Cable Insulation Quiz
Electrical Cable Insulation Quiz
Test your knowledge on the essentials of electrical cable insulation with this quiz! Perfect for students, professionals, and anyone interested in electrical engineering.
Key features of the quiz:
- Multiple choice questions covering various aspects of cable insulation.
- Designed to enhance your understanding of materials and standards.
- Score yourself and see where you stand in your knowledge!
51. The insulating material for a cable should have_________
Low cost
high dielectric strength
high mechanical strength
All of the above
52. Which of the following protects a cable against mechanical injury?
Bedding
Sheath
Armouring
None of the above
53. Which of the following insulation is used in cables?
varnished cambric
Rubber
Paper
Any of the above
54. Empire tape is ___________
varnished cambric
vulcanised rubber
impregnated paper
None of the above
55. The thickness of the layer of insulation on the conductor, in cables, depends upon ________
Reactive [power
Power factor
Voltage
current carrying capacity
56.The bedding on a cable consists of
hessian cloth
Jute
Any of the above
None of the above
57. The insulating material for cables should __________
be acid proof
. Be non-inflammable
be non-hygroscopic
Have all above properties
58. In a cable immediately above metallic sheath _____ is provided
. Earthing connection
Bedding
Armouring
None of the above
59. The minimum dielectric stress in a cable is at _________
Armour
Bedding
Conductor surface
lead sheath
60. In a cable, the maximum stress under operating conditions is at __________
insulation layer
Sheath
Armour
conductor surface
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