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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

Chemical Engineering MCQs designed for job test and interview preparation, particularly for fresh graduates, students, and candidates appearing in competitive exams. These multiple-choice questions cover important topics such as the fundamentals of chemical engineering, chemical processes, chemical reactions, process control, and instrumentation, along with other key concepts in the field.

Noise produced by cooling fans (employed in air cooled heat exchangers or cooling tower) is mainly caused due to the turbulence created by blade passage through air. It can be reduced by use of a slower fan_________________?

A With greater number of blades

B Of increased diameter

C Both A. & B.

D Neither A. nor B.

Review Detailed Answer

Correct Answer: Both A. & B.

Main pollutants released from iron & steel industry is__________________?

A CO, CO2 & SO2

B H2S, NO & SO3

C CO2, H2S & NO2

D SO3, NO2 & CO2

Review Detailed Answer

Correct Answer: CO, CO2 & SO2

The maximum CO2 is emitted into the atmosphere by_________________?

A Combustion

B Urea

C Biomass burning

D Trees

Review Detailed Answer

Correct Answer: Combustion

Color test of water is done with an instrument called__________________?

A Tintometer

B Colorimeter

C Electro-chemical cell

D Turbidimeter

Review Detailed Answer

Correct Answer: Tintometer

Water filtration rate in a slow sand filter ranges from ____________ litres/m2/hr?

A 10 to 20

B 100 to 200

C 1500 to 2500

D 4000 to 5000

Review Detailed Answer

Correct Answer: 100 to 200

A masonry structure built below ground level, where biochemical reaction takes place due to anaerobic bacteria is called___________________?

A Cesspool

B Lagoon

C Skimming mill

D Septic tank

Review Detailed Answer

Correct Answer: Septic tank

The maximum permissible noise level to which a man working in a chemical plant can be exposed for eight hours per day is about ____________ decibels?

A 60

B 90

C 105

D 120

Review Detailed Answer

Correct Answer: 90

Maximum permissible residual chlorine in treated water should be ____________ mg/litre?

A 0.001 to 0.01

B 0.2 to 0.3

C 2 to 3

D 5 to 10

Review Detailed Answer

Correct Answer: 0.2 to 0.3

Inhalation of silica dust by human being during hand drilling in mica mining, lead & zinc mining, silica refractory manufacture and in foundries causes___________________?

A Asphyxiation (suffocation)

B Shortness of breath

C Tuberculosis

D All A., B. and C.

Review Detailed Answer

Correct Answer: All A., B. and C.

In a sedimentation tank, the detention period for water ranges from _____________ hours?

A 2 to 4

B 8 to 12

C 16 to 20

D 24 to 32

Review Detailed Answer

Correct Answer: 2 to 4

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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

All Topics 9594

All Topics 9594

Noise produced by cooling fans (employed in air cooled heat exchangers or cooling tower) is mainly caused due to the turbulence created by blade passage through air. It can be reduced by use of a slower fan_________________?

Main pollutants released from iron & steel industry is__________________?

The maximum CO2 is emitted into the atmosphere by_________________?

Color test of water is done with an instrument called__________________?

Water filtration rate in a slow sand filter ranges from ____________ litres/m2/hr?

A masonry structure built below ground level, where biochemical reaction takes place due to anaerobic bacteria is called___________________?

The maximum permissible noise level to which a man working in a chemical plant can be exposed for eight hours per day is about ____________ decibels?

Maximum permissible residual chlorine in treated water should be ____________ mg/litre?

Inhalation of silica dust by human being during hand drilling in mica mining, lead & zinc mining, silica refractory manufacture and in foundries causes___________________?

In a sedimentation tank, the detention period for water ranges from _____________ hours?