Sparks Academy
SPARKS ACADEMY
Online Test Series
8190879379 Chennai

MCQ - Mechanical TNPSC JTO
JTO - 436 - Fitter - 436 - Unit VIII Metals Metal Non Metal

1)   

The main raw material used in the manufacturing of pig iron is:

A.
B.
C.
D.
Answer: B
2)   

Pig iron is produced in:

A.
B.
C.
D.
Answer: C
3)   

The carbon content in pig iron is approximately:

A.
B.
C.
D.
Answer: C
4)   

 The main impurity in pig iron is:

A.
B.
C.
D.
Answer: B
5)   

Cast iron is obtained by remelting:

A.
B.
C.
D.
Answer: B
6)   

 The carbon content in cast iron is in the range of:

A.
B.
C.
D.
Answer: C
7)   

 Which type of cast iron is produced when carbon is in the form of free graphite flakes?

A.
B.
C.
D.
Answer: C
8)   

White cast iron is hard and brittle because:

A.
B.
C.
D.
Answer: B
9)   

Wrought iron contains carbon in the range of:

A.
B.
C.
D.
Answer: A
10)   

Wrought iron is manufactured in a:

A.
B.
C.
D.
Answer: B
11)   

The main property of wrought iron is:

A.
B.
C.
D.
Answer: B
12)   

 Wrought iron has high resistance to:

A.
B.
C.
D.
Answer: B
13)   

Mild steel contains carbon in the range of:

A.
B.
C.
D.
Answer: A
14)   

High-carbon steel has carbon content in the range of:

A.
B.
C.
D.
Answer: C
15)   

The Bessemer process is used for manufacturing:

A.
B.
C.
D.
Answer: C
16)   

The density of aluminium is about:

A.
B.
C.
D.
Answer: B
17)   

The main ore of aluminium is:

A.
B.
C.
D.
Answer: A
18)   

Aluminium is widely used in electrical transmission lines because:

A.
B.
C.
D.
Answer: B
19)   

Duralumin is an alloy of:

A.
B.
C.
D.
Answer: B
20)   

 The density of lead is about:

A.
B.
C.
D.
Answer: D
21)   

 The main ore of lead is:

A.
B.
C.
D.
Answer: B
22)   

 Lead is mostly used for:

A.
B.
C.
D.
Answer: B
23)   

A key property of lead is

A.
B.
C.
D.
Answer: C
24)   

The main ore of tin is:

A.
B.
C.
D.
Answer: A
25)   

Tin is mainly used for:

A.
B.
C.
D.
Answer: B