A material is capable of resisting softening at high temperature, because of its property termed as____________________?

Byadmin February 10, 2019August 20, 2021

A material is capable of resisting softening at high temperature, because of its property termed as____________________?

A. Hot temper
B. Hot hardness
C. Fatigue
D. Creep

Chemical Engineering Basics

The refractory brick which has good thermal shock resistance at high temperature but cracks on cooling below 400°C is__________________?

The refractory brick which has good thermal shock resistance at high temperature but cracks on cooling below 400°C is__________________?

A. Magnesite
B. Chrome
C. Silica
D. Fireclay

Read More The refractory brick which has good thermal shock resistance at high temperature but cracks on cooling below 400°C is__________________?
Chemical Engineering Basics

With increasing carbon percent in steel beyond 0.8%, its ultimate tensile strength (UTS) and _____________ is not affected ?

With increasing carbon percent in steel beyond 0.8%, its ultimate tensile strength (UTS) and _____________ is not affected ?

A. Impact strength
B. Percent elongation
C. Hardness
D. Both B & C

Read More With increasing carbon percent in steel beyond 0.8%, its ultimate tensile strength (UTS) and _____________ is not affected ?
Chemical Engineering Basics

Transformer cores are normally made from ______________________?

Transformer cores are normally made from ______________________?

A. Soft ferrites
B. High purity iron
C. Grain oriented Fe-Si alloy
D. Al-Ni-Co alloy

Read More Transformer cores are normally made from ______________________?
CHEMICAL ENGINEERING | Chemical Engineering Basics

A thin, flat & square plate measuring 2 m x 2 m is freely hanging in ambient air at 25°C. It is exposed to the solar radiation falling on one side of the plate at the rate of 500 W/m2 . The plate temperature will remain constant at 30°C, if the convective heat transfer co-efficient is __________ W/m2 °C.

Question: A thin, flat & square plate measuring 2 m x 2 m is freely hanging in ambient air at 25°C. It is exposed to the solar radiation falling on one side of the plate at the rate of 500 W/m2 . The plate temperature will remain constant at 30°C, if the convective heat transfer co-efficient is __________ W/m2 °C.
[A].

50
[B].
100
[C].
150
[D].
200

Answer: Option B

Explanation:

No answer description available for this question.

Read More A thin, flat & square plate measuring 2 m x 2 m is freely hanging in ambient air at 25°C. It is exposed to the solar radiation falling on one side of the plate at the rate of 500 W/m2 . The plate temperature will remain constant at 30°C, if the convective heat transfer co-efficient is __________ W/m2 °C.
CHEMICAL ENGINEERING | Chemical Engineering Basics

A steam carraying pipeline is insulated with two layers of insulating materials with the inferior insulation material forming the inner part. If the two insulating layers are interchanged, the heat conducted will

Question: A steam carraying pipeline is insulated with two layers of insulating materials with the inferior insulation material forming the inner part. If the two insulating layers are interchanged, the heat conducted will
[A].

increase.
[B].
decrease.
[C].
remain unaffected.
[D].
may increase or decrease; depends on the thickness of each layer.

Answer: Option C

Explanation:

No answer description available for this question.

Read More A steam carraying pipeline is insulated with two layers of insulating materials with the inferior insulation material forming the inner part. If the two insulating layers are interchanged, the heat conducted will
Chemical Engineering Basics

In connection with corrosion of metals, passivation is the process that__________________?

In connection with corrosion of metals, passivation is the process that__________________?

A. Intensifies deterioration
B. Changes the composition of the metal
C. Inhibits further deterioration
D. None of these

Read More In connection with corrosion of metals, passivation is the process that__________________?

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