Engineering Materials MCQs

Question 1

Free cutting steels

Accepted Answer

Is used where rapid machining is the prime requirement

Answer

Contain carbon in free from

Answer

Require minimum cutting force

Answer

Can be cut freely

Question 2

The cupola is used to manufacture

Accepted Answer

Cast iron

Answer

Pig iron

Answer

Wrought iron

Answer

Steel

Question 3

Tungsten in high speed steel provides

Accepted Answer

Hot hardness

Answer

Toughness

Answer

Wear resistance

Answer

Sharp cutting edge

Question 4

1841 high speed steel contains

Accepted Answer

Vanadium 1%, chromium 4% and tungsten 18%

Answer

Vanadium 4%, chromium 18% and tungsten 1%

Answer

Vanadium 18%, chromium 1% and tungsten 4%

Answer

None of the above

Question 5

Corrosion resistance of steel is increased by addition of

Accepted Answer

Chromium and nickel

Answer

Sulphur, phosphorus, lead

Answer

Vanadium, aluminium

Answer

Tungsten, molybdenum, vanadium, chromium

Question 6

Depth of hardness of steel is increased by addition of

Accepted Answer

Chromium

Answer

Nickel

Answer

Tungsten

Answer

Vanadium

Question 7

By severely deforming a metal in a particular direction it becomes

Accepted Answer

Anisotropic

Answer

Ductile

Answer

Malleable

Answer

Homogeneous

Question 8

Iron-carbon alloys containing carbon ________ 4.3% are known as hyper-eutectic cast irons.

Accepted Answer

More than

Answer

Equal to

Answer

Less than

Answer

None of these

Question 9

Which of the following statements are true for annealing of steels?

Accepted Answer

All of these

Answer

Steels are heated to 500°C to 700°C

Answer

Cooling is done slowly and steadily

Answer

Internal stresses are relieved