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Question 1 of 10
1. Question
Which strategy for assessment of convective warmth move coefficient is numerically straightforward and finds a wide scope of uses?
Correct
The best strategy would be dimensional investigation combined with trial information as this will provide maximum results.
Incorrect
The best strategy would be dimensional investigation combined with trial information as this will provide maximum results.
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Question 2 of 10
2. Question
What does the Nusselt modulus or Nusselt number actually imply?
Correct
Nusselt modulus is basically stated that
The proportion of the temperature slope at the surface [(∂T/∂y)y=0] to the reference temperature angle [(Tw – T∞)/l].Incorrect
Nusselt modulus is basically stated that
The proportion of the temperature slope at the surface [(∂T/∂y)y=0] to the reference temperature angle [(Tw – T∞)/l]. -
Question 3 of 10
3. Question
Assume high temp water is put inside a shut metal vessel of thickness 5 mm. There is climatic air outside the vessel at a temperature lower than the temperature of boiling water. The warmth is moved from the heated water to air. What is the method of warmth move in this condition?
Correct
When it is poured into the metal vessel, convection, fluid cause conduction again the 3rd process caused convection.
Incorrect
When it is poured into the metal vessel, convection, fluid cause conduction again the 3rd process caused convection.
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Question 4 of 10
4. Question
What ought to be the temperature of a dark body to produce brilliant energy which is autonomous of the conditions in the environmental factors?
Correct
To produce the UV light which is independent of outside conditions the temperature of dark body ought to be more than zero.
Incorrect
To produce the UV light which is independent of outside conditions the temperature of dark body ought to be more than zero.
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Question 5 of 10
5. Question
Which hypothesis is generally used to decide the warmth move coefficient for film buildup on surfaces?
Correct
The heat transfer coefficient on surfaces for film buildup can be determined by applying Nusselt’s hypothesis.
Incorrect
The heat transfer coefficient on surfaces for film buildup can be determined by applying Nusselt’s hypothesis.
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Question 6 of 10
6. Question
What is the connection between the temperature of a body and the frequency of its transmitted radiation at its most extreme emissive force?
Correct
The temperature of the body and transmitted radiation both are inversely proportional to each other.
Incorrect
The temperature of the body and transmitted radiation both are inversely proportional to each other.
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Question 7 of 10
7. Question
How is the thickness of gas influenced by the change in its temperature?
Correct
As a density of gas as thickness and temperature both are directly related.
Incorrect
As a density of gas as thickness and temperature both are directly related.
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Question 8 of 10
8. Question
As per the Stefan-Boltzmann law of warm radiation for an ideal radiator, the pace of brilliant energy per unit region is relative to which of the following?
Correct
As it directly related to the fourth force of the temperature of that radiator.
Incorrect
As it directly related to the fourth force of the temperature of that radiator.
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Question 9 of 10
9. Question
What is the temperature inclination in the conduction heat move?
Correct
There would be a change in the coarse of heat streams if temperature changes.
Incorrect
There would be a change in the coarse of heat streams if temperature changes.
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Question 10 of 10
10. Question
In which mode, does the warmth energy move between two bodies when they are isolated by some distance and there is no medium between them?
Correct
Heat travels without medium only in radiation mode.
Incorrect
Heat travels without medium only in radiation mode.