In aqua-ammonia and Lithium-bromide water absorption refrigeration systems, the refrigerants are respectively

Byadmin September 14, 2022

Question: In aqua-ammonia and Lithium-bromide water absorption refrigeration systems, the refrigerants are respectively
[A].

water and water

[B].

water and lithium bromide

[C].

ammonia and lithium bromide

[D].

ammonia and water

Answer: Option D

Explanation:

No answer description available for this question.

CHEMICAL ENGINEERING | Heat Transfer

For the same heat transfer area and the terminal conditions, the ratio of the capacities of a single effect evaporator to a triple effect evaporator is

Question: For the same heat transfer area and the terminal conditions, the ratio of the capacities of a single effect evaporator to a triple effect evaporator is
[A].

3
[B].
0.33
[C].
1
[D].
1.33

Answer: Option C

Explanation:

No answer description available for this question.

Read More For the same heat transfer area and the terminal conditions, the ratio of the capacities of a single effect evaporator to a triple effect evaporator is
CHEMICAL ENGINEERING | Heat Transfer

A body cools down from 75°C to 70°C in 10 minutes. It will cool down from 70° C to 65° C in __________ minutes.

Question: A body cools down from 75°C to 70°C in 10 minutes. It will cool down from 70° C to 65° C in __________ minutes.
[A].

10
[B].
>10
[C].
<10
[D].
either (b) or (c), depends on the mass of the body

Answer: Option B

Explanation:

No answer description available for this question.

Read More A body cools down from 75°C to 70°C in 10 minutes. It will cool down from 70° C to 65° C in __________ minutes.
CHEMICAL ENGINEERING | Heat Transfer

Economy of an evaporator is influenced by the

Question: Economy of an evaporator is influenced by the
[A].

steam pressure
[B].
feed temperature
[C].
number of effect
[D].
both(b) & (c)

Answer: Option D

Explanation:

No answer description available for this question.

Read More Economy of an evaporator is influenced by the
CHEMICAL ENGINEERING | Heat Transfer

As per Kirchoffs law, the ratio of the total radiating power to the absorptivity of a body depends on the

Question: As per Kirchoffs law, the ratio of the total radiating power to the absorptivity of a body depends on the
[A].

temperature of the body only.
[B].
wavelength of monochromatic radiation.
[C].
both (a) and (b).
[D].
nature of material of body.

Answer: Option A

Explanation:

No answer description available for this question.

Read More As per Kirchoffs law, the ratio of the total radiating power to the absorptivity of a body depends on the
Hydraulics and Fluid Mechanics | Mechanical Engineering

According to Bazin, the coefficient of discharge varies with the height of water over the sill of a weir.

Question: According to Bazin, the coefficient of discharge varies with the height of water over the sill of a weir.
[A].

Correct
[B].
Incorrect

Answer: Option A

Explanation:

No answer description available for this question.

Read More According to Bazin, the coefficient of discharge varies with the height of water over the sill of a weir.
Ic Engines And Nuclear Power Plants | Mechanical Engineering

Which of the following statement is correct regarding petrol engines?

Question: Which of the following statement is correct regarding petrol engines?
[A].

A fine fuel spray mixed with air is ignited by the heat of compression which is at a high pressure.
[B].
The fuel supplied to the engine cylinder is mixed with necessary amount of air and the mixture in ignited with the help of a spark plug.
[C].
The fuel is first evaporated after passing through a carburettor and is mixed with air before ignition.
[D].
all of the above

Answer: Option B

Explanation:

No answer description available for this question.

Read More Which of the following statement is correct regarding petrol engines?

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