Chemical Engineering Basics

Question: __________ remains constant during the adiabatic cooling of moist air.
[A].

Wet bulb temperature

[B].

Dry bulb temperature

[C].

Relative humidity

[D].

Specific humidity

Answer: Option A

Explanation:

No answer description available for this question.

Question: Atomic __________ of an element is a whole number.
[A].

weight

[B].

number

[C].

volume

[D].

radius

Answer: Option B

Explanation:

No answer description available for this question.

Question: With increase in temperature, the surface tension of water
[A].

increases

[B].

decreases

[C].

remains constant

[D].

increases linearly

Answer: Option B

Explanation:

No answer description available for this question.

Question: An oxidation process is accompanied with decrease in the
[A].

number of electrons.

[B].

oxidation number.

[C].

number of ions.

[D].

all (a), (b) & (c).

Answer: Option A

Explanation:

No answer description available for this question.

Question: The amount of different substances produced, when the same quantity of electricity is passed through different solutions are proportional to their
[A].

equivalent weight.

[B].

(equivalent weight)2.

[C].

molecular weight.

[D].

(molecular weight)2.

Answer: Option A

Explanation:

No answer description available for this question.

Question: In a neutral solution
[A].

H+ ions are absent.

[B].

OH- ions are absent.

[C].

both H+ and OH- ions are present in very small but equal concentration.

[D].

none of these.

Answer: Option C

Explanation:

No answer description available for this question.

Question: Isotropic materials have the same __________ in all the directions.
[A].

thermal properties

[B].

elastic properties

[C].

stresses

[D].

all (a), (b) & (c)

Answer: Option B

Explanation:

No answer description available for this question.

Question: On an average __________ fast neutrons are produced by nuclear fission of each atom of uranium-235.
[A].

1

[B].

2.5

[C].

3.5

[D].

5

Answer: Option B

Explanation:

No answer description available for this question.

Question: Corona discharge is related to the operation of a/an
[A].

induction motor.

[B].

electrostatic precipitator.

[C].

fast breeder reactor.

[D].

magneto hydrodynamic generator (MHD).

Answer: Option B

Explanation:

No answer description available for this question.

Question: __________ of air does not increase with increase in temperature.
[A].

Density

[B].

Thermal diffusivity

[C].

Viscosity

[D].

Thermal conductivity

Answer: Option A

Explanation:

No answer description available for this question.