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During constant rate drying period, vaporisation rate per unit drying surface area

CHEMICAL ENGINEERING, Mass Transfer /
Question: During constant rate drying period, vaporisation rate per unit drying surface area
[A].

decreases with time.

[B].

increases with time.

[C].

does not change with time,

[D].

does not affect the moisture content of the wet solid.

Answer: Option C

Explanation:

No answer description available for this question.

During constant rate drying period, vaporisation rate per unit drying surface area Read More »

CHEMICAL ENGINEERING, Mass Transfer

Bound moisture is that liquid which exerts an equilibrium vapor pressure __________ that of the pure liquid at the given temperature.

CHEMICAL ENGINEERING, Mass Transfer /
Question: Bound moisture is that liquid which exerts an equilibrium vapor pressure __________ that of the pure liquid at the given temperature.
[A].

less than

[B].

more than

[C].

equal to

[D].

either (o) or (b); depends on the solid

Answer: Option A

Explanation:

No answer description available for this question.

Bound moisture is that liquid which exerts an equilibrium vapor pressure __________ that of the pure liquid at the given temperature. Read More »

CHEMICAL ENGINEERING, Mass Transfer

__________ is the temperature at which a gas-vapor mixture becomes saturated, when cooled at constant total pressure out of contact with a liquid.

CHEMICAL ENGINEERING, Mass Transfer /
Question: __________ is the temperature at which a gas-vapor mixture becomes saturated, when cooled at constant total pressure out of contact with a liquid.
[A].

Dew point

[B].

Bubble point

[C].

Dry bulb temperature

[D].

Wet bulb temperature

Answer: Option A

Explanation:

No answer description available for this question.

__________ is the temperature at which a gas-vapor mixture becomes saturated, when cooled at constant total pressure out of contact with a liquid. Read More »

CHEMICAL ENGINEERING, Mass Transfer

If a two phase system is in physical equilibrium; then it means that, the

CHEMICAL ENGINEERING, Mass Transfer /
Question: If a two phase system is in physical equilibrium; then it means that, the
[A].

escaping tendency of each component from the liquid phase to the vapor phase is exactly equal to that from vapor phase to liquid phase.

[B].

temperature of the liquid phase is equal to that of the vapor phase.

[C].

total pressure throughout the liquid phase is equal to that throughout the vapor phase.

[D].

all (a), (b) and (c).

Answer: Option D

Explanation:

No answer description available for this question.

If a two phase system is in physical equilibrium; then it means that, the Read More »

CHEMICAL ENGINEERING, Mass Transfer

Heat in BTU necessary to increase the temperature of 1 lb of gas and its accompanying vapour by 1°F is called the

CHEMICAL ENGINEERING, Mass Transfer /
Question: Heat in BTU necessary to increase the temperature of 1 lb of gas and its accompanying vapour by 1°F is called the
[A].

latent heat

[B].

humid heat

[C].

specific heat

[D].

sensible heat

Answer: Option C

Explanation:

No answer description available for this question.

Heat in BTU necessary to increase the temperature of 1 lb of gas and its accompanying vapour by 1°F is called the Read More »

CHEMICAL ENGINEERING, Mass Transfer

Minor errors in dimensioning on an architectural drawing can result in major construction problems on the job site.

Dimensioning Architectural Drawings, Technical Drawing /
Question: Minor errors in dimensioning on an architectural drawing can result in major construction problems on the job site.
[A].

True

[B].

False

Answer: Option A

Explanation:

No answer description available for this question.

Minor errors in dimensioning on an architectural drawing can result in major construction problems on the job site. Read More »

Dimensioning Architectural Drawings, Technical Drawing