Quiz – 1

Question 1

Time: 00:00:00
Specify the sequence correctly

Grain growth, recrystallisation, stress relief

Grain growth, recrystallisation, stress relief

Stress relief, grain growth, recrystallisation

Stress relief, grain growth, recrystallisation

Stress relief, recrystallisation, grain growth

Stress relief, recrystallisation, grain growth

Grain growth, stress relief, recrystallisation

Grain growth, stress relief, recrystallisation

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Question 2

Time: 00:00:00
Thermoplastic materials are those materials which

are formed into shape under heat and pressure and results in a permanently hard product

are formed into shape under heat and pressure and results in a permanently hard product

do not become hard with the application of heat and pressure and no chemical change occurs

do not become hard with the application of heat and pressure and no chemical change occurs

are flexible and can withstand considerable wear under suitable conditions

are flexible and can withstand considerable wear under suitable conditions

are used as a friction lining for clutches and brakes

are used as a friction lining for clutches and brakes

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Question 3

Time: 00:00:00
Which of the following material has maximum ductility?

Mild steel

Mild steel

Copper

Copper

Nickel

Nickel

Aluminium

Aluminium

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Question 4

Time: 00:00:00
An eutectoid steel consists of

wholly pearlite

wholly pearlite

wholly austenite

wholly austenite

pearlite and ferrite

pearlite and ferrite

pearlite and cementite

pearlite and cementite

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Question 5

Time: 00:00:00
Shock resisting steels should have

low wear resistance

low wear resistance

low hardness

low hardness

low tensile strength

low tensile strength

toughness

toughness

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Question 6

Time: 00:00:00
Cast iron is a

ductile material

ductile material

malleable material

malleable material

brittle material

brittle material

tough material

tough material

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Question 7

Time: 00:00:00
The hardness is the property of a material due to which it

can be drawn into wires

can be drawn into wires

breaks with little permanent distortion

breaks with little permanent distortion

can cut another metal

can cut another metal

can be rolled or hammered into thin sheets

can be rolled or hammered into thin sheets

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Question 8

Time: 00:00:00
Malleable cast iron is produced

by adding magnesium to molten cast iron

by adding magnesium to molten cast iron

by quick cooling of molten cast iron

by quick cooling of molten cast iron

from white cast iron by annealing process

from white cast iron by annealing process

none of these

none of these

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Question 9

Time: 00:00:00
Smelting is the process of

removing the impurities like clay, sand etc. from the iron ore by washing with water

removing the impurities like clay, sand etc. from the iron ore by washing with water

expelling moisture, carbon dioxide, sulphur and arsenic from the iron ore by heating in shallow kilns

expelling moisture, carbon dioxide, sulphur and arsenic from the iron ore by heating in shallow kilns

reducing the ore with carbon in the presence of a flux

reducing the ore with carbon in the presence of a flux

all of the above

all of the above

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Question 10

Time: 00:00:00
The percentage of carbon in cast iron varies from

0.1 to 0.5

0.1 to 0.5

0.5 to 1

0.5 to 1

1 to 1.7

1 to 1.7

1.7 to 4.5

1.7 to 4.5

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["0","40","60","80","100"]
["Need more practice!","Keep trying!","Not bad!","Good work!","Perfect!"]
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June 27, 2019