CHEMICAL ENGINEERING | Fluid Mechanics

Bernoulli’s equation is not applicable, when the flow is

Byadmin August 13, 2022

Question: Bernoulli’s equation is not applicable, when the flow is
[A].

irrotational.

[B].

incompressible.

[C].

viscous.

[D].

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

Answer: Option D

Explanation:

No answer description available for this question.

Fluid Mechanics

The capillary rise at 20°C in a clean glass tube of 1 mm bore containing water is approximately____________________?

The capillary rise at 20°C in a clean glass tube of 1 mm bore containing water is approximately____________________?

A. 1 mm
B. 5 mm
C. 10 mm
D. 20 mm
E. 30 mm

Read More The capillary rise at 20°C in a clean glass tube of 1 mm bore containing water is approximately____________________?
CHEMICAL ENGINEERING | Chemical Engineering Basics

Laser is a device to produce

Question: Laser is a device to produce
[A].

gamma rays.
[B].
microwaves.
[C].
a beam of white light.
[D].
a beam of coherent light.

Answer: Option D

Explanation:

No answer description available for this question.

Read More Laser is a device to produce
CHEMICAL ENGINEERING | Heat Transfer

Dietus-Boelter equation used for the determination of heat transfer co-efficient is valid

Question: Dietus-Boelter equation used for the determination of heat transfer co-efficient is valid
[A].

for fluids in laminar flow.
[B].
for fluids in tubulent flow.
[C].
when Grashhoff number is very important.
[D].
for liquid metals.

Answer: Option B

Explanation:

No answer description available for this question.

Read More Dietus-Boelter equation used for the determination of heat transfer co-efficient is valid
CHEMICAL ENGINEERING | Chemical Engineering Basics

__________ joint is mostly used for joining pipes carrying water at low pressure.

Question: __________ joint is mostly used for joining pipes carrying water at low pressure.
[A].

Nipple
[B].
Socket
[C].
Union
[D].
Bell and spigot

Answer: Option B

Explanation:

No answer description available for this question.

Read More __________ joint is mostly used for joining pipes carrying water at low pressure.
CHEMICAL ENGINEERING | Chemical Engineering Plant Economics

An investment of Rs. 100 lakhs is to be made for construction of a plant, which will take two years to start production. The annual profit from the operation of the plant is Rs. 20 lakhs. What will be the pay back time ?

Question: An investment of Rs. 100 lakhs is to be made for construction of a plant, which will take two years to start production. The annual profit from the operation of the plant is Rs. 20 lakhs. What will be the pay back time ?
[A].

5 years
[B].
7 years
[C].
12 years
[D].
10 years

Answer: Option B

Explanation:

No answer description available for this question.

Read More An investment of Rs. 100 lakhs is to be made for construction of a plant, which will take two years to start production. The annual profit from the operation of the plant is Rs. 20 lakhs. What will be the pay back time ?
CHEMICAL ENGINEERING | Fuels and Combustion

__________ prohibits the use of alcohols directly in petrol engines.

Question: __________ prohibits the use of alcohols directly in petrol engines.
[A].

Low octane number
[B].
High cost & availability
[C].
Low flash point
[D].
Low calorific value

Answer: Option B

Explanation:

No answer description available for this question.

Read More __________ prohibits the use of alcohols directly in petrol engines.

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