In a furnace with heating element temperature at 1700°C, the dominant mechanism of heat transfer will be__________________?

Byadmin February 11, 2019August 20, 2021

In a furnace with heating element temperature at 1700°C, the dominant mechanism of heat transfer will be__________________?

A. Conduction
B. Radiation
C. Natural convection
D. Forced convection

CHEMICAL ENGINEERING | Chemical Engineering Basics

A fine grained grinding wheel should not be used for grinding __________ materials.

Question: A fine grained grinding wheel should not be used for grinding __________ materials.
[A].

hard
[B].
brittle
[C].
soft & ductile
[D].
none of these

Answer: Option C

Explanation:

No answer description available for this question.

Read More A fine grained grinding wheel should not be used for grinding __________ materials.
Chemical Engineering Basics

_____________ glass is used in the mercury in glass thermometer meant for measuring a temperature of 500°C ?

_____________ glass is used in the mercury in glass thermometer meant for measuring a temperature of 500°C ?

A. Borosilicate
B. High silica
C. Supermax
D. Lead

Read More _____________ glass is used in the mercury in glass thermometer meant for measuring a temperature of 500°C ?
Chemical Engineering Basics

A steam pipe is intended to be insulated with two layers of insulating materials of different thermal conductivities. For minimum heat transfer to take place_________________?

A steam pipe is intended to be insulated with two layers of insulating materials of different thermal conductivities. For minimum heat transfer to take place_________________?

A. The better insulation material should be put just next to pipe (i.e., inside)
B. The better insulating material should be put outside
C. Either of the insulating material could be put on either side
D. Steam temperature is considered before deciding as to which insulating material is to be put
inside (i.e., just next to the pipe)

Read More A steam pipe is intended to be insulated with two layers of insulating materials of different thermal conductivities. For minimum heat transfer to take place_________________?
CHEMICAL ENGINEERING | Chemical Engineering Basics

Creep consideration is the most important in case of the

Question: Creep consideration is the most important in case of the
[A].

blades of gas turbines.
[B].
steam engine flywheel.
[C].
cast iron pipes.
[D].
cycle chains.

Answer: Option A

Explanation:

No answer description available for this question.

Read More Creep consideration is the most important in case of the
CHEMICAL ENGINEERING | Chemical Engineering Basics

Which of the following relationships is correct for relating the three elastic constants of an isotropic elastic material (where, E = Young’s modulus, G = Modulus of rigidity or shear modulus v = Poisson’s ratio) ?

Question: Which of the following relationships is correct for relating the three elastic constants of an isotropic elastic material (where, E = Young’s modulus, G = Modulus of rigidity or shear modulus v = Poisson’s ratio) ?
[A].

E = 2G (1 + v)
[B].
E = G (1 + v)
[C].
E = G (1 + v)/2
[D].
E = 2G (1 + 2v)

Answer: Option A

Explanation:

No answer description available for this question.

Read More Which of the following relationships is correct for relating the three elastic constants of an isotropic elastic material (where, E = Young’s modulus, G = Modulus of rigidity or shear modulus v = Poisson’s ratio) ?
Chemical Engineering Basics

The excess air required for the combustion of pulverized coal is of the order of about _______________ percent ?

The excess air required for the combustion of pulverized coal is of the order of about _______________ percent ?

A. 5
B. 15
C. 30
D. 45

Read More The excess air required for the combustion of pulverized coal is of the order of about _______________ percent ?

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