Chemical Engineering Basics

Question: The capacity of a spring to store energy is called the spring form co-efficient. Stiffness of a spring is measured by the
[A].

ability to absorb shock.

[B].

capacity to store energy.

[C].

ratio of the wire & coil diameters.

[D].

load to produce unit deflection.

Answer: Option D

Explanation:

No answer description available for this question.

Question: While the oxy-acetylene flame produces a temperature of 3200°C, the temperature produced by oxy-hydrogen flame is about __________ °C.
[A].

1800

[B].

2000

[C].

2400

[D].

3000

Answer: Option B

Explanation:

No answer description available for this question.

Question: The approximate height of a blast furnace having a useful volume of 2000 m3 is about __________ metres
[A].

25

[B].

35

[C].

55

[D].

75

Answer: Option C

Explanation:

No answer description available for this question.

Question: Absolute zero pressure can be attained at a temperature of
[A].

0°C

[B].

50°K

[C].

0°R

[D].

none of these

Answer: Option C

Explanation:

No answer description available for this question.

Question: __________ are not emitted by radioactive substances.
[A].

α-rays

[B].

β-rays

[C].

protons

[D].

positrons

Answer: Option C

Explanation:

No answer description available for this question.

Question: Number of electrons in the outermost shell of a semi-conductor material is
[A].

2

[B].

4

[C].

6

[D].

8

Answer: Option D

Explanation:

No answer description available for this question.

Question: Maximum hardenability of steel depends upon its
[A].

chemical composition

[B].

carbon content

[C].

grain size

[D].

alloying elements content

Answer: Option D

Explanation:

No answer description available for this question.

Question: Fine grained steels have
[A].

high brittleness

[B].

higher tendency to distort

[C].

high ductility

[D].

none of these

Answer: Option C

Explanation:

No answer description available for this question.

Question: Coarse grained steels have
[A].

low toughness

[B].

no tendency to distort

[C].

high density

[D].

very high toughness

Answer: Option B

Explanation:

No answer description available for this question.

Question: Dies for wire drawing are generally made of
[A].

mild steel

[B].

stainless steel

[C].

carbides

[D].

high carbon steel

Answer: Option A

Explanation:

No answer description available for this question.