Material Science And Metallurgy (3131904) MCQs

MCQs of Metallic Materials

Showing 21 to 30 out of 32 Questions
1 2 3 4
21.

An alloy of copper, tin and zinc is known as

(a)

brass
(b)

bronze
(c)

gun metal
(d)

 muntz metal
Answer:

Option (c)

22.

Admirality gun metal contains

(a)

60% copper, 35% zinc and 5% manganese
(b)

76% copper, 20% silicon and 4% zinc
(c)

82% copper, 12% zinc and 6% manganese
(d)

88% copper, 10% tin and 2% zinc
Answer:

Option (d)

23.

Nimonic contains __________ percentage of nickel as that of Inconel.

(a)

same
(b)

less
(c)

more
(d)

non of the above
Answer:

Option (a)

24.

A steel alloy containing 36% nickel is called

(a)

stainless steel
(b)

high speed steel
(c)

invar
(d)

heat resisting steel
Answer:

Option (c)

25.

The material widely used for making pendulums of clocks is

(a)

stainless steel
(b)

high speed steel
(c)

heat resisting steel
(d)

nickel steel
Answer:

Option (d)

26.

Which of the following has a fine gold colour and is used for imitation jewellery?

(a)

Silicon bronze
(b)

Aluminium bronze
(c)

Gun metal
(d)

Babbit metal
Answer:

Option (b)

27.

Which of the following metal is used in making electrical resistance wire for electric furnaces and heating elements?

(a)

Babbit metal
(b)

Monel metal
(c)

Nichrome
(d)

Phosphor bronze
Answer:

Option (c)

28.

The metal suitable for bearings subjected to light loads, is

(a)

silicon bronze
(b)

white metal
(c)

monel metal
(d)

phosphor bronze
Answer:

Option (d)

29.

Which of the following material has nearly zero coefficient of expansion?

(a)

Stainless steel
(b)

High speed steel
(c)

Invar
(d)

Heat resisting steel
Answer:

Option (c)

30.

Crystal structure of a material is, generally, examined by

(a)

naked eye
(b)

optical microscope
(c)

metallurgical microscope
(d)

X-ray techniques
Answer:

Option (d)

Showing 21 to 30 out of 32 Questions
1 2 3 4