MCQ on Basic Electrical Engineering

11-Out of the following four metals/alloys given below, one has no change in resistance for change in temperature
(A) Nickel
(B) Nichrome
(C) Manganin
(D) Platinum
12-To control one lamp from three places we use
(A) 3 one way switches
(B) 2 two way switches and 1 one way switch
(C) 3 two way switches
(D) 2 two way switches and 1 intermediate switch
13-Other than Nichrome, which of the following materials are used as heating element?
(A) Tungsten
(B) Kanthal
(C) Porcelain
(D) Mica
14-The meter used to measure the temperature of furnace is:
(A) thermometer
(B) thermostat
(C) hygrometer
(D) pyrometer
15-A substance that has low retentivity can be used for the manufacture of:
(A) electromagnets
(B) permanent magnets
(C) bar magnets
(D) paramagnets
16-The motor which requires least maintenance is
(A) squirrel cage induction motor
(B) slip ring induction motor
(C) dc series motor
(D) dc shunt motor
17-“Eyre No. 7” is:
(A) Copper soldering flux
(B) Aluminium solder
(C) Copper solder
(D) Aluminium soldering flux
18-Metric Horse Power is equal to:
(A) 746 W
(B) 736 W
(C) 756 W
(D) 1000 W
19-The floats used in the Buchholz relay is operated by:
(A) mercury switches
(B) iron clad switches
(C) centrifugal switches
(D) flush mounting switches
20-Which series MCBs are designed to protect circuits from inductive loads?
(A) L series MCB
(B) G series MCB
(C) AC series MCB
(D) DC series MCB
ANSWERS:
11-(C), 12-(D), 13-(B), 14-(D), 15-(A), 16-(A), 17-(D), 18-(B), 19-(A), 20-(D)