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The windings of a transformer are divided into several coils because

	None from the options
	It reduces voltage per coil
	It is difficult to wind as one coil
	It requires less insulation

It reduces voltage per coil

Two tuning forks of frequencies 256 and 258 vibrations/second are sounded together. Then the time interval between two consecutive maxima heard by an observer is?

	252 sec
	250 sec
	0.5 sec
	2 sec

0.5 sec

The type of rotary compressor used in aeroplanes, is of

	None from the options
	radial flow type
	centrifugal type
	axial flow type

axial flow type

The hardness is the property of a material due to which it

	can be drawn into wires
	breaks with little permanent distortion
	can be rolled or hammered into thin sheets
	can cut another metal

can cut another metal

All of the following are basic op-amp input modes of operation EXCEPT

	common-mode
	double-ended
	inverting mode
	single-ended

inverting mode

According to Coulomb�s wedge theory, the active earth pressure slides the wedge

	horizontal upward and parallel to base
	horizontal inward and parallel to base.
	up and inwards on a slip surface
	down and outwards on a slip surface

down and outwards on a slip surface

The truth table for an S-R flip-flop has how many VALID entries?

	4
	3
	1
	2

Two capacitors of capacitances 3 JlF and 6 JlF are charged to a potential of 12 Veach. They are now connected to each other, with the positive plate of each jOined to the negative plate of the other. The potential difference across each will be

	zero
	4 V
	3 V
	6 V

4 V

Which instrument is used to measure altitudes in aircraft's ?

	Anemometer
	Ammeter
	Audiometer
	Altimeter

Altimeter

All electrical appliances are connected in parallel to each other between the main line and the neutral wire to get?

	the same potential difference
	different current and the same potential difference
	None from the options
	the same current

different current and the same potential difference

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