CHEMICAL ENGINEERING | Fluid Mechanics

Forces acting on a particle settling in fluid are __________ forces.

Byadmin August 13, 2022

Question: Forces acting on a particle settling in fluid are __________ forces.
[A].

gravitational & buoyant.

[B].

centrifugal & drag.

[C].

gravitational or centrifugal buoyant drag.

[D].

external, drag & viscous.

Answer: Option C

Explanation:

No answer description available for this question.

CHEMICAL ENGINEERING | Chemical Engineering Basics

Air-petrol ratio for maximum power generation in spark ignition engine is about

Question: Air-petrol ratio for maximum power generation in spark ignition engine is about
[A].

6:1
[B].
12 : 1
[C].
18 : 1
[D].
24 : 1

Answer: Option B

Explanation:

No answer description available for this question.

Read More Air-petrol ratio for maximum power generation in spark ignition engine is about
CHEMICAL ENGINEERING | Fertiliser Technology

Nitro-phosphate (manufactured at Trom-bay) is a __________ fertiliser.

Question: Nitro-phosphate (manufactured at Trom-bay) is a __________ fertiliser.
[A].

mixed
[B].
complex
[C].
highly hygroscopic
[D].
highly explosive

Answer: Option B

Explanation:

No answer description available for this question.

Read More Nitro-phosphate (manufactured at Trom-bay) is a __________ fertiliser.
CHEMICAL ENGINEERING | Chemical Engineering Plant Economics

For a given fluid, as the pipe diameter increases, the pumping cost

Question: For a given fluid, as the pipe diameter increases, the pumping cost
[A].

decreases.
[B].
increases.
[C].
remains the same.
[D].
may increase or decrease, depending upon whether the fluid is Newtonian or non-Newtonian.

Answer: Option A

Explanation:

No answer description available for this question.

Read More For a given fluid, as the pipe diameter increases, the pumping cost
CHEMICAL ENGINEERING | Chemical Engineering Basics

Out of the following, the alloy which has equal percentage of constituents, is

Question: Out of the following, the alloy which has equal percentage of constituents, is
[A].

white metal
[B].
gun metal
[C].
duralumin
[D].
constanton

Answer: Option D

Explanation:

No answer description available for this question.

Read More Out of the following, the alloy which has equal percentage of constituents, is
CHEMICAL ENGINEERING | Fluid Mechanics

Differential manometer measures the

Question: Differential manometer measures the
[A].

atmospheric pressure.
[B].
sub-atmospheric pressure.
[C].
pressure difference between two points.
[D].
none of these.

Answer: Option C

Explanation:

No answer description available for this question.

Read More Differential manometer measures the
CHEMICAL ENGINEERING | Heat Transfer

In a laboratory test run, the rate of drying was found to be 0.5 x 10-3 kg/m2.s, when the moisture content reduced from 0.4 to 0.1 on dry basis. The critical moisture content of the material is 0.08 on a dry basis. A tray dryer is used to dry 100 kg (dry basis) of the same material under identical conditions. The surface area of the material is 0.04 m2/kg of dry solid. The time required (in seconds) to reduce the moisture content of the solids from 0.3 to 0.2 (dry basis) is

Question: In a laboratory test run, the rate of drying was found to be 0.5 x 10-3 kg/m2.s, when the moisture content reduced from 0.4 to 0.1 on dry basis. The critical moisture content of the material is 0.08 on a dry basis. A tray dryer is used to dry 100 kg (dry basis) of the same material under identical conditions. The surface area of the material is 0.04 m2/kg of dry solid. The time required (in seconds) to reduce the moisture content of the solids from 0.3 to 0.2 (dry basis) is
[A].

2000
[B].
4000
[C].
5000
[D].
6000

Answer: Option C

Explanation:

No answer description available for this question.

Read More In a laboratory test run, the rate of drying was found to be 0.5 x 10-3 kg/m2.s, when the moisture content reduced from 0.4 to 0.1 on dry basis. The critical moisture content of the material is 0.08 on a dry basis. A tray dryer is used to dry 100 kg (dry basis) of the same material under identical conditions. The surface area of the material is 0.04 m2/kg of dry solid. The time required (in seconds) to reduce the moisture content of the solids from 0.3 to 0.2 (dry basis) is

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