TRANSMISSION AND DISTRIBUTION OF ELECTRICAL POWER- 5
Transmission and Distribution of Electrical Power Quiz
Test your knowledge on the transmission and distribution of electrical power with this comprehensive quiz! Designed for students, professionals, and anyone interested in understanding the fundamentals of electrical systems, this quiz challenges you with multiple-choice questions.
Topics include:
- Conductor specifications
- Fuse fun
ctions - Circuit breaker mechanisms
- Motor protection systems
41. A.C.S.R. Conductor having 7 steel strands surrounded by 25 aluminium conductors will be specified as ___________
25 / 7
50 / 15
7 / 25
15 / 50
42. The main function of a fuse is to __________
. Protect the line
open the circuit
protect the appliance
prevent excessive currents
43. Which of the following medium is employed for extinction of arc in air circuit breaker?
Water
Oil
Air
SF6
44. A thermal protection switch can protect against __________
Short circuit
Temperature
Overload
Overvoltage
45. Thermal overload relays are used to protect the motor against over current due to _________
Short circuit
Heavyloads
Grounds
All of the above
46. In a circuit breaker the basic problem is to ______
maintain the arc
extinguish the arc
transmit large power
emit the ionizing electrons
47. Which of the following is the least expensive protection for over current is low voltage system?
rewireable fuse
Isolator
. Oil circuit breaker
Air break circuit breaker
48. The single phasing relays are used for the protection of _________
single phase motors only
two phase motors only
two single phase motors running in parallel
three phase motors
49. The material used for fuse must have __________
low melting point and high specific resistance
. Low melting point and low specific resistance
high melting point and low specific resistance
. Low melting point and any specific resistance
50. H.R.C. fuse, as compared to a rewirable fuse, has _________
. No ageing effect
high speed of operation
High rupturing capacity
All of the above
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