METALS MCQ 

 

1) The filaments of lamp bulbs are made of

 

Tungsten

Tin

Nickel

Chromium

 

Correct Answer (A)

 

3) The alloys “Duralumin” and “Hindalium” contain 95% of

 

Soda water

Copper

Zinc

Aluminium

 

Correct Answer (D)

 

4) Muntz metal is an alloy of

 

Copper and zinc

Copper and tin

Copper and aluminium

Copper and nickel

 

Correct Answer (A)

 

5) Which of the following metals can be found in a pure state in nature?

 

Lithium

Iron

Gold

Aluminium

 

Correct Answer (C)

 

6) Which one of the following characteristics about tin is correct?

 

Tin can withstand high temperature

Tin is the main constituent of most solders

Tin is very good conductor of electricity

Tin is corrosion resistant metal

 

Correct Answer (D)

 

7) Cast iron is used for manufacturing machine beds because

 

it is heavy in weight

it is a brittle metal

it can resist more compressive stress

it is a cheaper metal

 

Correct Answer (C)

 

8) Brass is an alloy of

 

Copper and zinc

Copper and silver

Lead and tin

Copper and tin

 

Correct Answer (A)

 

9) Aluminium in its pure form is not used for engineering work because

 

It lacks strength

It is costly

It is very light

It is brittle

 

Correct Answer (A)

 

10) Which among the following is the lightest metal?

 

Aluminium

Copper

Tin

Lead

 

Correct Answer (A)

 

11) White metal is an alloy of

 

Copper, zinc, tin and antimony

Copper, lead, tin and antimony

Copper and tin

Copper, zinc and tin

 

Correct Answer (B)

 

12) Galvanized iron is coated with

 

Zinc

Tin

Lead

Copper

 

Correct Answer (A)

 

13) Desirable hardness in a file is generally

 

30 HRC

45 HRC

60 HRC

80 HRC

 

Correct Answer (C)

 

14) Bronze is an alloy of

 

Copper and zinc

Copper and tin

Lead and tin

Copper and lead

 

Correct Answer (B)

 

15) The property by which metal can be rolled into sheet is

 

Elasticity

Ductility

Malleability

Tenacity

 

Correct Answer (C)

 

16) Crane hooks are made of

 

Wrought iron

Cast iron

High carbon steel

Cast steel

 

Correct Answer (A)

 

17) Which one of the following metals is corrosion-resistant?

 

Copper

Mild steel

Tin

Aluminium

 

Correct Answer (C)

 

18) Which one of the following alloys can resist saltwater corrosion ?

 

Gun metal

Brass

Nickel chrome alloy

Zinc alloy

 

Correct Answer (D)

 

19) Which one of the following properties offers resistance to abrasion ?

 

Malleability

Hardness

Ductility

Toughness

 

Correct Answer (B)

 

20) Which one of the following is a chemical property of metal?

 

Conductivity

Corrosiveness

Hardness

Elasticity

Correct Answer (B)