CHEMICAL ENGINEERING | Materials and Construction

Nickel and molybdenum are the basic constituents of

Byadmin August 29, 2022

Question: Nickel and molybdenum are the basic constituents of
[A].

hastealloy

[B].

German silver

[C].

inconel

[D].

solder

Answer: Option A

Explanation:

No answer description available for this question.

CHEMICAL ENGINEERING | Chemical Engineering Thermodynamics

Helmholtz free energy (A) is defined as

Question: Helmholtz free energy (A) is defined as
[A].

A = H – TS
[B].
A = E – TS
[C].
A = H + TS
[D].
none of these

Answer: Option B

Explanation:

No answer description available for this question.

Read More Helmholtz free energy (A) is defined as
CHEMICAL ENGINEERING | Mass Transfer

A solid is being dried in the linear drying rate regime from moisture content Xo to XF. The drying rate is zero at X = 0 and the critical moisture content is the same as the initial moisture Xo. The drying time for M = (Ls/ARc) is (where, L = total mass of dry solid, A = total surface area for drying Rc = Constant maximum drying rate per unit area X = moisture content (in mass of water/mass of dry solids))

Question: A solid is being dried in the linear drying rate regime from moisture content Xo to XF. The drying rate is zero at X = 0 and the critical moisture content is the same as the initial moisture Xo. The drying time for M = (Ls/ARc) is (where, L = total mass of dry solid, A = total surface area for drying Rc = Constant maximum drying rate per unit area X = moisture content (in mass of water/mass of dry solids))
[A].

M(Xo – XF)
[B].
M(Xo/XF)
[C].
M ln(Xo/XF)
[D].
MXo ln(Xo/XF)

Answer: Option D

Explanation:

No answer description available for this question.

Read More A solid is being dried in the linear drying rate regime from moisture content Xo to XF. The drying rate is zero at X = 0 and the critical moisture content is the same as the initial moisture Xo. The drying time for M = (Ls/ARc) is (where, L = total mass of dry solid, A = total surface area for drying Rc = Constant maximum drying rate per unit area X = moisture content (in mass of water/mass of dry solids))
CHEMICAL ENGINEERING | Chemical Engineering Plant Economics

‘P’ is the investment made on an equipment, ‘S’ is its salvage value and ‘n is the life of the equipment in years. The depreciation for rath year by the sum-of years digit method will be

Question: ‘P’ is the investment made on an equipment, ‘S’ is its salvage value and ‘n is the life of the equipment in years. The depreciation for rath year by the sum-of years digit method will be
[A].

[B].

[C].

[D].

Answer: Option D

Explanation:

No answer description available for this question.

Read More ‘P’ is the investment made on an equipment, ‘S’ is its salvage value and ‘n is the life of the equipment in years. The depreciation for rath year by the sum-of years digit method will be
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.
Materials and Construction

Wood metal is not used for making___________________?

Wood metal is not used for making___________________?

A. Soft solder
B. Casting for dental work
C. Storage tank for storing brine and caustic soda
D. Fusible safety plug for pressure cooker

Read More Wood metal is not used for making___________________?
CHEMICAL ENGINEERING | Mass Transfer

Extraction of pencillin employs a __________ extraction coloumn.

Question: Extraction of pencillin employs a __________ extraction coloumn.
[A].

centrifugal
[B].
packed
[C].
plate
[D].
None of these.

Answer: Option A

Explanation:

No answer description available for this question.

Read More Extraction of pencillin employs a __________ extraction coloumn.

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