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OFB CM
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OFB Labour Group-C 2014
3

OFB Labour Group-C Question Paper - 2014 with Answer Key

3) The instrument used to measure the radioactivity is

Geiger counter

Radio compass

Radio micrometer

Radar

Answer is:

Geiger counter

OFB Labour Group-C Question Paper - 2014 with Answer Key

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Related OFB Labour Group-C Question Paper - 2014 with Answer Key

4) The lens used to rectify long sight is

Concave lens

Convex lens

Plano concave lens

Plano convex lens

Answer is:

Concave lens

5) A pyrometer is used to measure

Low temperature

High temperature

High Pressure

Low pressure

Answer is:

High temperature

6) Primary colors are

Red, Blue and Yellow

Blue, Green and Yellow

Green, Red and Yellow

Red, Blue and Green

Answer is:

Red, Blue and Yellow

7) Bats can fly in the dark without hitting anything because

They are flying mammals

Their night vision is good

They are guided by ultrasonic waves produced by them

no scientific reason

Answer is:

They are guided by ultrasonic waves produced by them

OFB Labour Group-C Question Paper - 2014 with Answer Key

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