CHEMICAL ENGINEERING

With increase in ___________________ Knocking tendency in a spark ignition petrol engine decreases?

Byadmin February 7, 2019August 19, 2021

With increase in ___________________ Knocking tendency in a spark ignition petrol engine decreases?

A. Supercharging
B. Wall temperature
C. Compression ratio
D. Engine speed

CHEMICAL ENGINEERING | Chemical Reaction Engineering

BET apparatus

Question: BET apparatus
[A].

measures the catalyst surface area directly.
[B].
operates at very high pressure.
[C].
is made entirely of stainless steel.
[D].
none of these.

Answer: Option D

Explanation:

No answer description available for this question.

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CHEMICAL ENGINEERING | Chemical Engineering Thermodynamics

‘The fugacity of a gas in a mixture is equal to the product of its mole fraction and its fugacity in the pure state at the total pressure of the mixture”. This is

Question: ‘The fugacity of a gas in a mixture is equal to the product of its mole fraction and its fugacity in the pure state at the total pressure of the mixture”. This is
[A].

the statement as per Gibbs-Helmholtz
[B].
called Lewis-Randall rule
[C].
Henry’s law
[D].
none of these

Answer: Option B

Explanation:

No answer description available for this question.

Read More ‘The fugacity of a gas in a mixture is equal to the product of its mole fraction and its fugacity in the pure state at the total pressure of the mixture”. This is
CHEMICAL ENGINEERING | Environmental Engineering

Noise level audible to audience sitting in the 5th row from the stage during a large orchestra show corresponds to about __________ decibels.

Question: Noise level audible to audience sitting in the 5th row from the stage during a large orchestra show corresponds to about __________ decibels.
[A].

105
[B].
135
[C].
160
[D].
185

Answer: Option B

Explanation:

No answer description available for this question.

Read More Noise level audible to audience sitting in the 5th row from the stage during a large orchestra show corresponds to about __________ decibels.
CHEMICAL ENGINEERING | Mass Transfer

Corresponding to Prandtl number in heat transfer, the dimensionless group in mass transfer is the __________ number.

Question: Corresponding to Prandtl number in heat transfer, the dimensionless group in mass transfer is the __________ number.
[A].

Schmidt
[B].
Sherwood
[C].
Peclet
[D].
Stanton

Answer: Option A

Explanation:

No answer description available for this question.

Read More Corresponding to Prandtl number in heat transfer, the dimensionless group in mass transfer is the __________ number.
CHEMICAL ENGINEERING | Chemical Engineering Plant Economics

An investment of Rs. 100 lakhs is to be made for construction of a plant, which will take two years to start production. The annual profit from the operation of the plant is Rs. 20 lakhs. What will be the pay back time ?

Question: An investment of Rs. 100 lakhs is to be made for construction of a plant, which will take two years to start production. The annual profit from the operation of the plant is Rs. 20 lakhs. What will be the pay back time ?
[A].

5 years
[B].
7 years
[C].
12 years
[D].
10 years

Answer: Option B

Explanation:

No answer description available for this question.

Read More An investment of Rs. 100 lakhs is to be made for construction of a plant, which will take two years to start production. The annual profit from the operation of the plant is Rs. 20 lakhs. What will be the pay back time ?
CHEMICAL ENGINEERING | Fertiliser Technology

__________ is the most suitable fertiliser for paddy.

Question: __________ is the most suitable fertiliser for paddy.
[A].

Urea
[B].
Ammonium sulphate
[C].
Superphosphate
[D].
Potassium nitrate

Answer: Option B

Explanation:

No answer description available for this question.

Read More __________ is the most suitable fertiliser for paddy.

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