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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......?




... Answer is B)
100kv .



22. Air insulated circuit breaker is ?




... Answer is A)
Outdoor type .



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




... Answer is C)
1000 times .



24. Arrester is connected between....




... Answer is C)
Phase & earth .



25. Which gas is used in circuit breaker ?




... Answer is A)
SF6 .



26. Which gas is used in circuit breaker ?




... Answer is A)
SF6 .



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




... Answer is A)
sulphur hexafluoride gas



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




... Answer is C)
electronegative gas



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




... Answer is D)
MVA



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




... Answer is C)
breaking compartment



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