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Chargeman
OFB Chargeman Mechanical 2014
56

OFB Chargeman Mechanical Question Paper - 2014 with Answer Key

56) Which of the following is used in pencils?

Graphite

Silicon

Charcoal

Phosphorous

Answer is:

Graphite

OFB Chargeman Mechanical Question Paper - 2014 with Answer Key

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Related OFB Chargeman Mechanical Question Paper - 2014 with Answer Key

57) Which of the gas is not known as green house gas?

Methane

Nitrous oxide

Carbon dioxide

Hydrogen

Answer is:

Hydrogen

58) Tetraethyl lead is used as

Pain killer

Fire extinguisher

Mosquito repellent

Petrol additive

Answer is:

Petrol additive

59) This is a line terminated by arrowheads, indicating the direction and extent of a dimension

Dimension line

Extension line

Arrowhead line

Centerline

Answer is:

Dimension line

60) The most common geometric form used in gears today is this

Involute profile

Convolute profile

Base circle

Spur circle

Answer is:

Involute profile

OFB Chargeman Mechanical Question Paper - 2014 with Answer Key

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