Material Science And Metallurgy (3131904) MCQs

MCQs of Metallic Materials

Showing 1 to 10 out of 32 Questions
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1.

Which of the following compound is used for fine polishing?

(a)

Diamond Past
(b)

Nitric oxide
(c)

Silicon carbide
(d)

Iron oxide
Answer:

Option (a)

2.

Brass is an alloy of

(a)

copper and zinc
(b)

copper and tin
(c)

copper, tin and zinc
(d)

none of these
Answer:

Option (a)

3.

Cartidge brass can be

(a)

cold rolled into sheets
(b)

drawn into wires
(c)

formed into tube
(d)

any one of these
Answer:

Option (d)

4.

Muntz metal (Yellow brass) contains

(a)

70% copper and 30% zinc
(b)

60% copper and 40% zinc
(c)

59% copper, 40% zinc and 1% tin
(d)

"60.45% copper, 35.2% zinc and 5.35% nickel
Answer:

Option (b)

5.

Bronze is an alloy of

(a)

copper and zinc
(b)

copper and tin
(c)

copper, tin and zinc
(d)

none of these
Answer:

Option (b)

6.

The percentage of phosphorus is phosphor bronze is

(a)

1
(b)

2
(c)

11.1
(d)

98
Answer:

Option (a)

7.

Phosphor bronze has

(a)

high resistance to corrosion
(b)

good wearing qualities and high elasticity
(c)

valuable cold working property
(d)

all of these
Answer:

Option (b)

8.

Beryllium bronze contains

(a)

60% copper and 40% beryllium
(b)

80% copper and 20% beryllium
(c)

97.75% copper and 2.25% beryllium
(d)

99% copper and 1% beryllium
Answer:

Option (c)

9.

Which of the following statement is incorrect about duralumin?

(a)

It is prone to age hardening
(b)

It can be forged
(c)

It has good machining properties
(d)

It is lighter than pure aluminium
Answer:

Option (d)

10.

Duralumin contains

(a)

3.5 to 4.5% copper, 0.4 to 0.7% magnesium, 0.4 to 0.7% manganese and rest aluminium
(b)

3.5 to 4.5% copper, 1.2 to 1.7% managanese, 1.8 to 2.3% nickel, 0.6% each of silicon, magnesium and iron, and rest aluminium
(c)

4 to 4.5% magnesium, 3 to 4% copper and rest aluminium
(d)

any one of these
Answer:

Option (a)

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