D:-Shorted
Correct Answer:- Option-B
Question29:-Among them which motor has highest starting torque
A:-Shaded pole motor
B:-Universal motor
C:-Capacitor start induction run motor
D:-Permanent capacitor motor
Correct Answer:- Option-B
Question30:-The cells of 2 volt and each having an intemal resistance of 0.2 Q are jointed in series. If 10 Q external
resistance is connected accross the circuit, what will be the current flowing through the
A:-1.5A
B:-1.8A
C:2A
D:-1.67A
Correct Answer:-Question Cancelled
Question31:-Composition of plumbers solder is % Tin and % Lead.
A:-35 and 65
B:-60 and 40
C:-65 and 35
D:-50 and 60
Correct Answer:- Option-A
Question32:-The speed control method used in domestic mixer grinder is
A:-voltage control method
B:-tapped field control method
C:-adding series resistance
D:-all of the above
Correct Answer:- Option-B
Question33:-A moving coil volt meter shows 220 volt when it is connected across an AC supply. What will be the voltage
shows when it is measured using CRO 7
A-220V
8:-380 ४
6:-244 ४
0:-311 ४
Correct Answer:- Option-D
Question34:-Copper loss of a transformer is 120 watt at it's 1/4th load watt will be the copper loss 1/8th full load
A:-30 watt
B:-64 watt
C:-240 watt
D:-192 watt
Correct Answer:- Option-A
Question35:-To change DOR of Repulsion motor
A:-change the supply terminal of motor
B:-change the brush ற
C:-change the motor terminals
D:-all of the above
Correct Answer:- Option-B
Question36:-The type DC generator used for electoplating ह
A:-series generator
B:-long shunt compound generator
C:-shunt generator
D:-cumulative compound generator
Correct Answer:- Option-C
Question37:-The type of DC compound generator used for arc welding is
A:-Over compound generator
B:-Under compound generator
C:-Differential compound generator
D:-Level compound generator
Correct Answer:- Option-C
Question38:-A circuit contain R and Lin series, R = 8'Q and L = 0.02 henry, what will be the power factor of the circuit
when is connected across 50 Hz, 50 volt ac supply