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OFB Labour Group-C 2014
4

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

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

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

8) The instrument used to test the purity of milk is

Galvanometer

Calorimeter

Lactometer

Polari meter

Answer is:

Lactometer

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

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