1. . The most common wiring system used for domestic installations
(A) Cleat
(B) Batten
(C) Concealed
(D) Steel conduit
2. . The cables used in batten wiring system is
(A) VRI Cable
(B) PVC cable
(C) a & b
(D) Flexible cable
3. . Cleat wiring is normally used in building
(A) Under construction
(B) Domestic
(C) Commercial
(D) Industrial
4. . The approximate life of a batten wiring is
(A) 10–15 Years
(B) 20–25 Years
(C) 15–20 Years
(D) 25–30 Years
5. . The cable used in a batten wiring system is
(A) PVC cable
(B) Flexible cable
(C) VRI cable
(D) Twin core
6. . The robust and reliable wiring system is
(A) Steel conduit
(B) Batten
(C) Cleat
(D) Casing & capping
7. . Which type of wiring is suitable in damp situation
(A) Concealed
(B) Batten
(C) Surface conduit
(D) Casing & capping
8. . Earthing is very essential to prevent from
(A) Over voltage
(B) Under voltage
(C) Electric shock
(D) Voltage fluctuations
9. . The resistance of an earthing system is needed to be
(A) High
(B) Very Low
(C) Very High
(D) Moderately low
10. . The part of earthing system connected with the casing of an equipment
(A) None
(B) Earth Lead
(C) Earth electrode
(D) Continuity conductor
11. . Cable used for Over-head service lines is
(A) Weather proof
(B) a & b
(C) Silicon Rubber
(D) PVC cable
12. . Over-head service cable is supported by
(A) Service bracket
(B) Tye wire
(C) P.G clamp
(D) None of them
13. . The service cable used for three phase industrial load
(A) Single core
(B) Twin core
(C) Four core
(D) Three core
14. . The outdoor substations are developed in
(A) Less populated areas
(B) Inside populated area
(C) Outside populated areas
(D) All type of areas
15. . The transformer installed on H-type pole is called
(A) Foundation mount substation
(B) None of them
(C) Transformer mount substation
(D) Pole mount substation
16. . Rating of a busbar is in
(A) Power
(B) Current & Voltage
(C) Current and Frequency
(D) Ampere
17. . Which substation equipment is water cooled
(A) Arrester
(B) Isolator
(C) Transformer
(D) Circuit breaker
18. . Circuit used in burglar alarm is
(A) Open circuit
(B) Close circuit
(C) Open or close circuit
(D) None of them