QuizMaster

Question: In acidic bessemer process, the furnace is lined with
[A].

silica bricks

[B].

a mixture of tar and burnt dolomite bricks

[C].

either (a) or (b)

[D].

none of these

Answer: Option A

Explanation:

No answer description available for this question.

Question: During the operation of a bessemer converter, the white flame indicates that the silicon and managenese had burnt and carbon has started oxidising.
[A].

Agree

[B].

Disagree

Answer: Option A

Explanation:

No answer description available for this question.

Question: The brown smoke during the operation of a bessemer Converter indicates that the
[A].

air is burning out silicon and managanese

[B].

silicon and manganese has burnt and carbon has started oxidising

[C].

the converter must be titled to remove the contents of the converter

[D].

the brown smoke does not occur during the operation of a bessemer converter

Answer: Option A

Explanation:

No answer description available for this question.

Question: According to Indian standard specifications, a plain carbon steel designated by 40 C8 means that the carbon content is
[A].

0.04%

[B].

0.35 to 0.45%

[C].

0.4 to 0.6%

[D].

0.6 to 0.8%

Answer: Option B

Explanation:

No answer description available for this question.

Question: Wrought iron
[A].

is a ductile material

[B].

can be easily forged or welded

[C].

cannot stand sudden and excessive shocks

[D].

all of these

Answer: Option D

Explanation:

No answer description available for this question.

Question: For the pipe fitting like elbow, tee, union etc., which of the following is preferred?
[A].

Pig iron

[B].

Malleable iron

[C].

Spheroidal graphite cast iron

[D].

High carbon steel

Answer: Option B

Explanation:

No answer description available for this question.

Question: Grey cast iron is __________ than white cast iron.
[A].

softer

[B].

harder

Answer: Option A

Explanation:

No answer description available for this question.

Question: Which of the following statement is correct?
[A].

The product produced by blastfurnace is called cast iron.

[B].

The pig iron is the name given to the product produced by cupola.

[C].

The cast iron has high tensile strength.

[D].

The chilled cast iron has no graphite.

Answer: Option D

Explanation:

No answer description available for this question.

Question: According to Indian standard specifications, SG 400/15 means
[A].

spheroidal graphite cast iron with B.H.N. 400 and minimum tensile strength 15 MPa

[B].

spheroidal graphite cast iron with minimum tensile strength 400 MPa and 15 percent elongation

[C].

spheroidal graphite cast iron with minimum compressive strength 400 MPa and 15 percent reduction in area

[D].

none of the above

Answer: Option B

Explanation:

No answer description available for this question.

Question: White cast iron has
[A].

carbon in the form of carbide

[B].

low tensile strength

[C].

high compressive strength

[D].

all of these

Answer: Option D

Explanation:

No answer description available for this question.