MCQsDrive | MCQsDrive

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.

For a given ambient air temperature with increase in the thickness of insulation of a hot cylindrical pipe, the rate of heat loss from the surface would ?

A Decrease

B Increase

C First decrease and then increase

D First increase and then decrease

Review Detailed Answer

Correct Answer: First increase and then decrease

In a backward feed multiple effect evaporator ___________________ ?

A Feed is introduced in the first effect

B Feed flows from low pressure to high pressure

C No pumps are required between successive effects

D None of these

Review Detailed Answer

Correct Answer: Feed flows from low pressure to high pressure

The sum of reflectivity and absorptivity for an opaque body is equal to____________________?

A 0.5

B 1

C 0

D 2

Review Detailed Answer

Correct Answer: 1

Steam is routed through the tube in case of a ______________ evaporator?

A Basket type

B Horizontal tube

C Short tube vertical

D Long tube vertical

Review Detailed Answer

Correct Answer: Horizontal tube

Multiple effect evaporation is generally recommended, when the______________________?

A Large scale evaporation of liquor is needed

B Corrosive liquids are to be concentrated

C Fuel is cheaply available

D Evaporation on small scale is to be done

Review Detailed Answer

Correct Answer: Large scale evaporation of liquor is needed

1 BTU/hr.ft.°F is equal to _____________ kcal/hr. m.°C?

A 1.49

B 1

C 4.88

D None of these

Review Detailed Answer

Correct Answer: 1.49

A _____________ surface has the maximum thermal emissivity out of the following ?

A Black & smooth

B Black & rough

C White & smooth

D White & rough

Review Detailed Answer

Correct Answer: Black & rough

A hollow sphere and a solid sphere of the same material and equal radii are heated to the same temperature. In this case ?

A The cooling rate will be the same for the two spheres and hence the two spheres will have

B Both the spheres will emit equal amount of radiation per unit time in the beginning

C Both will absorb equal amount of radiation from the surrounding in the beginning

D Both B. & C.

Review Detailed Answer

Correct Answer: Both B. & C.

Which of the following has the highest thermal conductivity ?

A Brick

B Air

C Water

D Silver

Review Detailed Answer

Correct Answer: Silver

Circulation pump is located below the evaporator to___________________?

A Avoid cavitation

B Avoid frequent priming

C Create more suction head

D None of these

Review Detailed Answer

Correct Answer: Create more suction head

Showing 371 to 380 of 510 results

Contact Info

Chemical Engineering Mcqs 9594 MCQs [All-Courses]

All Topics 9594

All Topics 9594

For a given ambient air temperature with increase in the thickness of insulation of a hot cylindrical pipe, the rate of heat loss from the surface would ?

In a backward feed multiple effect evaporator ___________________ ?

The sum of reflectivity and absorptivity for an opaque body is equal to____________________?

Steam is routed through the tube in case of a ______________ evaporator?

Multiple effect evaporation is generally recommended, when the______________________?

1 BTU/hr.ft.°F is equal to _____________ kcal/hr. m.°C?

A _____________ surface has the maximum thermal emissivity out of the following ?

A hollow sphere and a solid sphere of the same material and equal radii are heated to the same temperature. In this case ?

Which of the following has the highest thermal conductivity ?

Circulation pump is located below the evaporator to___________________?