A. true
B. false
Transformers
Transformers
A. asbestos fiber
B. silica sand
C. sodium chloride
D. silica gel
A. ionizing air
B. absorbing moisture
C. cleansing the transformer oil
D. cooling the transformer oil
A. reduces weight per kVA
B. reduces iron losses
C. reduces copper losses
D. increases part load efficiency
A. primary side
B. secondary side
C. low voltage side
D. high voltage side
A. The power factor of the two trans-formers will be different from the power factor of common load
B. Incorrect polarity will result in dead short circuit
C. The transformers will not share load in proportion to their kVA ratings
D. none of the above
A. transformers will be overheated
B. power factors of both the transformers will be same
C. parallel operation will be not possible
D. parallel operation will still be possible, but the power factors at which the two transformers operate will be different from the power factor of the common load
A. R2/VK
B. R2IK2
C. R22!K2
D. R22/K
A. leakage reactance
B. per unit impedance
C. efficiencies
D. ratings
A. voltage device
B. current device
C. power device
D. main flux device
