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Chargeman
OFB Chargeman Mechanical 2014
143

OFB Chargeman Mechanical Question Paper - 2014 with Answer Key

143) Steel having combination of 6.67% carbon and 93.33% iron is known as

Cementite

Pearlite

Martensitic

Austenitic

Answer is:

Cementite

OFB Chargeman Mechanical Question Paper - 2014 with Answer Key

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Related OFB Chargeman Mechanical Question Paper - 2014 with Answer Key

144) When steel containing more than 0.8% carbon is cooled slowly below the lower critical point, it contains

Ferrite mainly

Pearlite mainly

Ferrite & pearlite

Pearlite & cementite

Answer is:

Pearlite & cementite

145) Solder is an alloy of

Copper & Tin

Lead & Tin

Lead & Copper

Copper & aluminium

Answer is:

Lead & Tin

146) On a triple thread screw

Lead = Pitch

Lead = 3 Pitch

Lead = 1/3 Pitch

Lead = 9 Pitch

Answer is:

Lead = 3 Pitch

147) The lost motion of the spindle in micrometer screw gauge when the rotation of the thimble is changed in direction is referred to as

Wear

Least count

Backlash

Total error

Answer is:

Backlash

OFB Chargeman Mechanical Question Paper - 2014 with Answer Key

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