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Chargeman
OFB Chargeman Mechanical 2014
57

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

OFB Chargeman Mechanical Question Paper - 2014 with Answer Key

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Related OFB Chargeman Mechanical Question Paper - 2014 with Answer Key

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

61) Gear teeth formed on a flat surface are called this

Pinion

Rack

Spur

Teeth

Answer is:

Rack

Gear teeth formed on a flat surface are called this

OFB Chargeman Mechanical Question Paper - 2014 with Answer Key

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