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11
The weight of copper of both armature and field windings decreases with _____ in number of poles.
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Answer: Option A
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12
Which of the following instruments indicate the instantaneous value of the electrical quantity being measured at the time at which it is being measured ?
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Answer: Option B
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13
In Weston synchronoscope the moving coil is connected across
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Answer: Option A
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14
The winding where dummy coils are used is sometimes called
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Answer: Option C
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15
By which of the following methods the temperature rise of windings and other parts may be determined ?
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Answer: Option D
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16
In a dynamometer 3-phase power factor meter, the planes of the two moving coils are at
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Answer: Option D
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17
With conventional hydrogen cooling it is possible to increase the rating of a single unit to
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Answer: Option C
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18
Which of the following is the commonly used type of electromagnets ?
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Answer: Option D
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19
The noise produced by a ______ cooled machine is less as the rotor moves in a medium of smaller density.
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Answer: Option B
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20
If the current in a capacitor leads the voltage by 80°, the loss angle of the capacitor is
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Answer: Option A
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