Related Questions

Two transformers are connected in parallel. These transformers do not have equal percentage impedance. This is likely to result in
A short-circuiting of the secondaries
B power factor of one of the transformers is leading while that of the other lagging
C transformers having higher copper losses will have negligible core losses
D loading of the transformers not in proportion to their kVA ratings
Natural oil cooling is used for transformers up to a rating of
A 3000 kVA
B 1000 kVA
C 500 kVA
D 250 kVA
In this method of underwriting, the underwriter gives rating points for all the negative or adverse factors, totals them and decides extra mortality rating. Which method are we talking about?
A Biometric rating
B Judgmental rating
C Clinical rating
D Numerical rating
Type of rating to which all credit rating agencies does not consider is classified as
A split rating
B sinking rating
C automated rating
D floating rating
The power rating of a resistor determines the minimum power that it can handle safely.
A True
B False
For the same a.c. power output as above, what should be the minimum power rating of transistor for class B operation?
A 10 W
B 4 W
C 8 W
D None of the above
Power transformers should be designed to have maximum efficiency
A at one-fourth load
B at one-half load
C at or near full load
D any of the above
Power transformers are designed to have maximum efficiency at
A nearly full load
B 70% full load
C 50% full load
D no load
Power transformers are generally designed to have maximum efficiency around
A no-load
B half-load
C near full-load
D 10% overload
Of the 65 cars on a car lot, 45 have air conditioning, 30 have power windows, and 12 have both air conditioning and power windows. how many of the cars on the lot have neither air conditioning nor power windows?
A 2
B 8
C 12
D 18

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