MCQ, set-3, Testing & Commissioning of Electrical Equipments

Electrical engineering

MCQ related to Testing and Commissioning of Electrical Equipments (TCEE)

Set : 3

21. Airblast circuit breaker is operate at voltage beyond......?

A) 1000kv
B) 100kv
C) 10kv
D) 1kv

... Answer is B)
100kv .

22. Air insulated circuit breaker is ?

A) Outdoor type
B) indoor type
C) Weather type
D) wet type

... Answer is A)
Outdoor type .

23. In mechanical testing circuit breaker is open & closed ..... times ?

A) 100
B) 500
C) 1000
D) 10

... Answer is C)
1000 times .

24. Arrester is connected between....

A) Phase & phase
B) Phase & nutral
C) Phase & earth
D) line & transformer

... Answer is C)
Phase & earth .

25. Which gas is used in circuit breaker ?

A) SF6
B) O2
C) N2
D) CO2

... Answer is A)
SF6 .

26. Which gas is used in circuit breaker ?

A) SF6
B) O2
C) N2
D) CO2

... Answer is A)
SF6 .

27. Full form of SF6 is...... ?

A) sulphur hexafluoride
B) sodium hexafluoride
C) electronegative gas
D) sulfate hexafluoride

... Answer is A)
sulphur hexafluoride gas

28. The SF6 is...... ?

A) electro positive gas
B) low resistance gas
C) electronegative gas
D) All

... Answer is C)
electronegative gas

29. Braking capacity is expressed in..... ?

A) VAR
B) KVA
C) Amp
D) MVA

... Answer is D)
MVA

30. In minimum oil circuit breaker upper compartment is known as..... ?

A) insulation compartment
B) mechanism compartment
C) breaking compartment
D) Control compartment

... Answer is C)
breaking compartment

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