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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.

The minimum baffle height should be ______________?

A Equal to the impeller diameter

B Twice the impeller diameter

C Twice the tank diameter

D 3/4 of the tank height

Review Detailed Answer

Correct Answer: Twice the impeller diameter

Pick out the wrong statement?

A If sufficient residence time (around 8 seconds) is not provided to the downcoming liquid in

B The liquid head in the downcomer should not be greater than one half the plate spacing to

C The discharge end of the downcomer must project far enough into the tray liquid so that no

D None of these

Review Detailed Answer

Correct Answer: None of these

For a cylindrical shell, (subject to the thickness of uppermost course being more than the minimum for dia of the tank in question), the thickness of the courses of shell_________________?

A Decreases upwards

B Increases upwards

C Remains same throughout

D May decrease or increase upwards depending upon whether vacuum or positive pressure

Review Detailed Answer

Correct Answer: Decreases upwards

___________ tower is the most suitable gas-liquid contacting device involving highly corrosive fluids?

A Sieve plate

B Packed

C Bubble cap plate

D None of these

Review Detailed Answer

Correct Answer: Packed

What is the slope of the feed line, if the feed to a distillation column is a saturated liquid ?

A 0

B ∞

C > 1

D < 1

Review Detailed Answer

Correct Answer: ∞

High pressure fluid in a shell and tube heat exchanger should preferably be routed through the________________?

A Tubes to avoid the expansion of high pressure shell construction

B Shell side for smaller total pressure drop

C Shell side, if the flow is counter-current and tube side if the flow is co-current

D Shell side for large overall heat transfer co-efficient

Review Detailed Answer

Correct Answer: Tubes to avoid the expansion of high pressure shell construction

______________ closure is the weakest enclosure for cylindrical vessels?

A Hemispherical

B Torispherical

C Conical or flat plate

D Elliptical

Review Detailed Answer

Correct Answer: Conical or flat plate

In a distillation column, bubble caps are located on trays with a pitch of ______________ times the outside diameter of the caps?

A 1.3 to 2

B 1.6 to 2

C 2.5

D 1.5 to 3

Review Detailed Answer

Correct Answer: 1.3 to 2

Pick out the wrong statement pertaining to the design of a horizontal tube evaporator ?

A It is unsuitable for concentrating those liquids, which form a scale or deposit salt

B It is suitable for process, in which the final product is a liquor instead of solid

C Its usual dimensions are: tube dia = 2-3 cms; evaporator body dia = 1-4 metres and evaporator

D Liquor flows inside the tube, while the steam is outside submerging the tube

Review Detailed Answer

Correct Answer: Liquor flows inside the tube, while the steam is outside submerging the tube

Large process vessels operating under extreme temperature and pressure conditions are normally clad/ lined with materials like stainless steel, aluminium, nickel & its alloys, copper & its alloys and titanium. The cladding thickness is generally about ______________ percent of the total thickness?

A 1 to 5

B 10 to 20

C 30 to 40

D 40 to 50

Review Detailed Answer

Correct Answer: 10 to 20

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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

All Topics 9594

All Topics 9594

The minimum baffle height should be ______________?

Pick out the wrong statement?

For a cylindrical shell, (subject to the thickness of uppermost course being more than the minimum for dia of the tank in question), the thickness of the courses of shell_________________?

___________ tower is the most suitable gas-liquid contacting device involving highly corrosive fluids?

What is the slope of the feed line, if the feed to a distillation column is a saturated liquid ?

High pressure fluid in a shell and tube heat exchanger should preferably be routed through the________________?

______________ closure is the weakest enclosure for cylindrical vessels?

In a distillation column, bubble caps are located on trays with a pitch of ______________ times the outside diameter of the caps?

Pick out the wrong statement pertaining to the design of a horizontal tube evaporator ?

Large process vessels operating under extreme temperature and pressure conditions are normally clad/ lined with materials like stainless steel, aluminium, nickel & its alloys, copper & its alloys and titanium. The cladding thickness is generally about ______________ percent of the total thickness?