Mechanical Engineering Mcqs — Test 65

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Question 1

The following types of materials are usually the most ductile__________________?

Question 2

In grey cast iron, carbon is present in the form of____________________?

Question 3

The unique property of cast iron is its high ___________________?

Question 4

The percentage of carbon in grey iron castings usually varies between __________________?

Question 5

For the allotropic forms of iron, the points of arrest are __________________?

Question 6

The crystal of alpha iron is ____________________?

Question 7

A reversible change in the atomic structure of steel with corresponding change in the properties is known as___________________?

Question 8

Ferromagnetic alpha iron exists in temperature range of________________?

Question 9

The temperature at which ferromagnetic alpha iron transforms to paramagnetic alpha iron is _______________?

Question 10

A material is known as allotropic or polymorphic if it __________________?