☾★Academy of PakistanTest & Learning

804Active Users

☾★Academy of PakistanTest & Learning

Home PakMcqs Past Papers Internships Pakistan Jobs Scholarships PDFs About Us

804Active Users

Home PakMcqs Past Papers Internships Pakistan Jobs Scholarships Submit MCQs Profile

Chemical Engineering MCQs with Explanations

Read every question, see the correct answer, and understand the explanation at your own pace. Study mode has no timer and no negative marking.

27%

2,250 of 8,342MCQs reviewed

Study Mode — explanations are always visiblePrefer a timed quiz? Start test

2251Chemical EngineeringMedium

Pumping of a corrosive liquid is generally preferred to be done by a ________ pump, as it can be made of a variety of materials including plastics?

Gear

BPiston

CPositive displacement

DSump

Correct answer

A. Gear

Explanation

The correct answer is Gear.

2252Chemical EngineeringMedium

Reboiler is considered as one theoretical plate, because________?

AVapour is recycled to the column

BOf the assumption that vapour and liquid leaving the reboiler are in equilibrium

CNone of these

DReboiler itself contains one plate

Correct answer

B. Of the assumption that vapour and liquid leaving the reboiler are in equilibrium

Explanation

The correct answer is Of the assumption that vapour and liquid leaving the reboiler are in equilibrium.

2253Chemical EngineeringMedium

Refractory castables are used for________?

AAll A., B. and C.

BPatch work

CProducing monolithic linings

DMinimising the number of joints in the structure

Correct answer

A. All A., B. and C.

Explanation

The correct answer is All A., B. and C..

2254Chemical EngineeringMedium

Ammonia leakage in the refrigeration system is detected by________?

ASoap solution

BIts smell

CSulphur stick, which on detection gives white smoke

DUsing chemical reagents

Correct answer

C. Sulphur stick, which on detection gives white smoke

Explanation

The correct answer is Sulphur stick, which on detection gives white smoke.

2255Chemical EngineeringMedium

Deaeration (removal of O2) of water is done by________?

AAbsorption

BAdsorption

CIon-exchange

DRectification

Correct answer

C. Ion-exchange

Explanation

The correct answer is Ion-exchange.

2256Chemical EngineeringMedium

Largest constituent of coke oven gas is________?

ACH4

BN2

CH2

DCO2

Correct answer

C. H2

Explanation

The correct answer is H2.

2257Chemical EngineeringMedium

Austempering process results in the formation of ________ structure?

ABainitic

BCarburised

CStressed

DMartensitic

Correct answer

A. Bainitic

Explanation

The correct answer is Bainitic.

2258Chemical EngineeringMedium

Tube height in a calandria type evaporator is normally less than ________ metres?

A3.5

B5.5

Correct answer

C. 2

Explanation

The correct answer is 2.

2259Chemical EngineeringMedium

Carbon refractories________?

ADo not resist temperature fluctuations

BHave extremely low thermal & electrical conductivities

CAre not attacked by slags, as they are not wetted by melts

DDo not burn/oxidise, when exposed to air on heating

Correct answer

C. Are not attacked by slags, as they are not wetted by melts

Explanation

The correct answer is Are not attacked by slags, as they are not wetted by melts.

2260Chemical EngineeringMedium

Cast iron compared to steel is better in________?

AMalleability

BFluidity & castability

CStrength

DDuctility

Correct answer

B. Fluidity & castability

Explanation

The correct answer is Fluidity & castability.

PreviousNext

Study this subject

Browse all 8,342 questions in groups of ten. Each question also has a permanent page that Google and students can open directly.

Quick facts

Questions8,342

Study pages835

Current page226

How to learn

Read the question before viewing choices.
Compare the correct answer with alternatives.
Use the quiz after completing a study page.