Satellites burn off during re-entry to earth’s atmosphere, because of the ____________________?

Byadmin February 7, 2019August 20, 2021

Satellites burn off during re-entry to earth’s atmosphere, because of the ____________________?

A. Combustion with air
B. Gravitational pull by earth
C. Friction with earth’s atmosphere
D. Loss in weight of the satellite

CHEMICAL ENGINEERING | Fuels and Combustion

Atomising steam to fuel oil ratio in a burner should be around

Question: Atomising steam to fuel oil ratio in a burner should be around
[A].

0.5
[B].
1.5
[C].
2.5
[D].
3.5

Answer: Option A

Explanation:

No answer description available for this question.

Read More Atomising steam to fuel oil ratio in a burner should be around
CHEMICAL ENGINEERING | Fluid Mechanics

A pressure head of 320 metres of water in meters of CCl4 (sp.gr = 1.6) will be

Question: A pressure head of 320 metres of water in meters of CCl4 (sp.gr = 1.6) will be
[A].

100
[B].
200
[C].
320
[D].
160

Answer: Option B

Explanation:

No answer description available for this question.

Read More A pressure head of 320 metres of water in meters of CCl4 (sp.gr = 1.6) will be
CHEMICAL ENGINEERING | Fluid Mechanics

Cavitation in a centrifugal pump results from

Question: Cavitation in a centrifugal pump results from
[A].

high discharge pressure
[B].
low barometric pressure
[C].
high discharge velocity
[D].
high discharge rate

Answer: Option B

Explanation:

No answer description available for this question.

Read More Cavitation in a centrifugal pump results from
CHEMICAL ENGINEERING | Heat Transfer

Forced circulation evaporators are useful for the concentration of viscous, salting and scale forming liquors. Which of the following is a forced circulation evaporator?

Question: Forced circulation evaporators are useful for the concentration of viscous, salting and scale forming liquors. Which of the following is a forced circulation evaporator?
[A].

Long vertical evaporator
[B].
Horizontal tube evaporator
[C].
Agitated film evaporator
[D].
Calenderia vertical tube evaporator

Answer: Option C

Explanation:

No answer description available for this question.

Read More Forced circulation evaporators are useful for the concentration of viscous, salting and scale forming liquors. Which of the following is a forced circulation evaporator?
CHEMICAL ENGINEERING | Mass Transfer

Most important factor to be considered in the selection of packings for absorbers is the __________ of packing.

Question: Most important factor to be considered in the selection of packings for absorbers is the __________ of packing.
[A].

size
[B].
durability
[C].
porosity
[D].
cost

Answer: Option C

Explanation:

No answer description available for this question.

Read More Most important factor to be considered in the selection of packings for absorbers is the __________ of packing.
CHEMICAL ENGINEERING | Environmental Engineering

Noise level heard inside a bus in busy city traffic or inside a sub-way train corresponds to about __________ decibels.

Question: Noise level heard inside a bus in busy city traffic or inside a sub-way train corresponds to about __________ decibels.
[A].

75
[B].
95
[C].
120
[D].
140

Answer: Option B

Explanation:

No answer description available for this question.

Read More Noise level heard inside a bus in busy city traffic or inside a sub-way train corresponds to about __________ decibels.

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