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ISRO Technician-B Blacksmithy 2019
75

ISRO Technician-B Blacksmithy Question Paper - 2019 (Set-1) with Answer Key

75) The hardness of steel depends on the amount of _____ it contains

Carbon

Sulphur

Phosphorous

Manganese

Answer is:

Carbon

ISRO Technician-B Blacksmithy Question Paper - 2019 (Set-1) with Answer Key

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Related ISRO Technician-B Blacksmithy Question Paper - 2019 (Set-1) with Answer Key

76) Essential constituent of a hardened carbon steel is

Pearlite

Martensite

Austenite

Ferrite

Answer is:

Martensite

77) pig iron is manufactured in

Blast furnace

Cupola furnace

Bessemer furnace

Puddling

Answer is:

Blast furnace

pig iron is manufactured in

78) Which among the following metals has the lowest melting temperature?

Lead

Tin

Copper

Aluminium

Answer is:

Tin

79) Hematite is an ore of

Iron

Aluminium

Zinc

Copper

Answer is:

Iron

ISRO Technician-B Blacksmithy Question Paper - 2019 (Set-1) with Answer Key

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