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OFB Labour Group-C 2014
14

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

14) X-rays cannot penetrate through

Wood

Aluminum

Lead

Iron

Answer is:

Lead

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

15) Penetrating power is greater in the case of

alpha ray

Beta ray

Gamma Ray

X Ray

Answer is:

Gamma Ray

16) The sky is blue in color because of

The moisture present in the air

The scattering of light by dust particles or air molecules

Combination of various lights producing blue color

All of the above

Answer is:

The scattering of light by dust particles or air molecules

17) Pure silicon is used in

Electronic industry

Textile industry

Paint industry

Pharmaceuticals

Answer is:

Electronic industry

18) The normal temperature of human body in the Kelvin scale is

280

290

310

340

Answer is:

310

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

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