Question # 1

To see from submarine and the ship at the surface of water, we use:

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Telescope

Microscope

Periscope

Prism

The logical operation performed by this gate is:

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AND

NOR

NAND

OR

The resistance of voltmeter is:

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zero

low

Very high

10Ω

The data stored in C.D. is.

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680 MB

650 MB

700 MB

750 MB

The current which changes its direction is called:

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Current

A.C.

Conventional current

D.C.

Which among the following radiation has more penetrating power?

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A beta pareticle

A gamma particle

An alpha particle

None of these

The phenomenon in which radiations convert the matter into positive and negative ions is called:

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Radio activity

Excitation

Ionization

Electrolysis

Which one is a safety device?

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Switch

Fuse

Circuit breaker

Both B and C

It mean position kinetic energy of the ball is:

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Minimum

Zero

Maximum

None of these

George Boole invented:

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Boolean algebra

Arithmetic algebra

Mean algebra

Geometry

The step-up transformer

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Increases the input current

Increase the input voltage

Has more turns in the primary

Has less turns in hte secondary coil

AND gate can be formed by using two:

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NOT gates

OR gates

NOR gates

Nand gates

The speed of sound in air at 0 ^oC is:

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331 ms^-1

332 ms^-1

333 ms^-1

336 ms^-1

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