Electrical Machine Design - Study Mode
[#81] A Weston frequency meter is
Correct Answer
(B) moving iron instrument
[#82] A _____ device prevents the oscillation of the moving system and enables the latter to reach its final position quickly
Correct Answer
(C) damping
[#83] In D.C. machines, the ________ in field mmf results in increase in size and cost of machines.
Correct Answer
(A) increase
[#84] For measurement of mutual inductance we can use
Correct Answer
(C) Heaviside bridge
[#85] In a low power factor wattmeter the compensating coil is connected
Correct Answer
(C) in series with pressure coil