C:-25A
D:-10A
Correct Answer:- Option-A
Question88:-Aluminium conductor cables can be joined by
A:-gas welding
B:-soldering
C:-compression
D:-thermite welding
Correct Answer:- Option-C
Question89:-Minimum distance of underground cable from the foundation of the building should be
A:-100 cm

Correct Answer:- Option-C
Question90:-Resolution of an instrument is
A:-the minimum quantity it can measure
B:-the maximum quantity that can measure
C:-the maximum non linearity
D:-ability to distinguish polarity
Correct Answer:- Option-A
Question91:-The response of a galvanometer is independent of its
A:-controlling torque
-number of turns
-circuit resistance
D:-none of these
Correct Answer:- Option-C
Question92:-A dynamometer type wattmeter response to the
A:-average value of active power
-average value of reactive power
C:-peak value of active power
D:-peak value of reactive power
Correct Answer:- Option-A
Question93:-Permission for addition/alteration in the lift installation is granted in
A:-Form F
-Form B
C:-Form D
D:-Form H
Correct Answer:- Option-B
Question94:-The licence for existing lift/escalator is issued in?
A:-Form F
B:-Form B
C:-Form D
D:-Form H
Correct Answer:- Option-A
Question95:-Motor used for elevators is generally
-synchronous motor
:-induction motor
C:-capacitor start single phase motor
D:-any of the above
Correct Answer:- Option-B
Question96:-A synchronous motor is found to be more economical when the load is above

D:-100 kw
Correct Answer:- Option-D

Question97:-According to Indian Electricity rules, extra high voltage implies voltage exceeding.
A:-440 V