The critical resistance refers to – McqOptions

MCQOPTIONS

1.	The critical resistance refers to
A.	the resistance above which machine does not excite
B.	the resistance below which machine does not excite
C.	the resistance at which machine does not excite
D.	any of the mentioned
Answer» B. the resistance below which machine does not excite

Discussion

No Comment Found

Related MCQs

_____________ is responsible for mechanical power output of a DC motor.
A dc series generator as armature and field connections are reversed, the generator __________
The number of parallel paths in the armature is increased by __________
A series generator, having external characteristics which is a straight line through 0 to 50 V at 200 A is connected as a booster, between a station bus-bar and feeders of 0.5 ohm resistors. The voltage at the far end of feeder at current of 50 A is?
Flashing is used to __________
If a DC shunt generator fails to start, the most primitive action would be __________
The critical resistance refers to __________
The self-excited dc generator with gradual build up of residual voltage and EMF corresponds to __________
If a self excited DC generator is failed to run, this refers to ________________
Consider a DC generator running at the rated speed of 2000 rpm, suddenly there is an insulator falls on the field circuit and breaks it. Then __________