Online Chemical Engineering Test - Chemical Engineering Test - Random

Instruction:

This is a FREE online test. Beware of scammers who ask for money to attend this test.
Total number of questions: 20.
Time allotted: 30 minutes.
Each question carries 1 mark; there are no negative marks.
DO NOT refresh the page.
All the best!

Potential function is applicable only for __________ flow.

irrotational

turbulent

steady

none of these

[#]

Froude number is the ratio of

shear stress to gravitational stress.

drag stress to shear stress.

inertial stress to shear stress.

inertial stress to gravitational stress.

[#]

With decrease in particle size to be fluidised by a particular fluid, the operating range of fluidisation velocity

widens

squeezes

does not change

unpredictable from the data

[#]

Pine oil used in froth floatation technique acts as a/an

collector

modifier

frother

activator

[#]

Use of 'grinding aids' is done in __________ grinding.

dry

wet

ultrafine

intermediate

[#]

Zeolite is a/an

naturally occuring clay which is capable of exchanging cations.

abrasive material.

catalyst used in shift conversion.

none of these.

[#]

Acrylonitrile is mainly used in the __________ industry.

polymer

printing

dyeing

photographic

[#]

Maximum heat transfer rate is obtained in __________ flow.

laminar

turbulent

creeping

transition region

[#]

The second order system with the transfer function

has a damping ratio of

2.0

0.5

1.0

4.0

[#]

10.

An aneroid barometer measures the __________ pressure.

atmospheric

absolute

vacuum

gage

[#]

11.

Which of the following is not a composition measuring instrument ?

Thermal conductivity cell

Mass spectrometer

Polarograph

Hot wire anemometer

[#]

12.

"When a system in equilibrium is subjected to a change in temperature, pressure or concentration, the equilibrium is displaced in a direction which tends to undo the effect of the change." This is called the

Le-Chatelier principle.

Kopp's rule.

law of corresponding state.

Arrehenius hypothesis.

[#]

13.

The Joule-Thomson co-efficient is defined as (∂T/∂P)_H. Its value at the inversion point is

∞

-ve

[#]

14.

'N' plug flow reactors in series with a total volume 'V' gives the same conversion as a single plug flow reactor of volume 'V' for __________ order reactions.

first

second

third

any

[#]

15.

Space time equals the mean residence time

when the density of the reaction mixture is constant.

for large diameter tubular reactor.

for narrow diameter tubular reactor.

for CSTR.

[#]

16.

For long flame and easy ignition, the coal used should have

high volatile matter

low ash

high calorific value

high ash

[#]

17.

Bacterial aerobic oxidation of polluted water in biological oxidation ponds is done to purify it. Presence of bacteria helps in

coagulation and flocculation of colloids.

oxidation of carbonaceous matter to CO₂.

nitrification or oxidation of ammonia derived from breakdown of nitrogeneous organic matter to the nitrite and eventually to the nitrate.

all (a), (b) and (c).

[#]

18.

Ion exchange resins are made of

lucite

sulphonated bakelite

polystyrene

teflon

[#]

19.

Which of the following has the highest density and the lowest melting point ?

Stainless steel

Titanium

Lead

Aluminium

[#]

20.

Which of the following is prone to cup and cone fracture ?

Cast iron

Soft brass

Round specimen of ductile metal.

Flat tensile specimen of ductile metal.

[#]

Quick links

Quantitative Aptitude

Verbal (English)

Reasoning

Programming

Interview

Placement Papers

Online Chemical Engineering Test - Chemical Engineering Test - Random

Marks : 2/20

Test Review : View answers and explanation for this test.

Current Affairs

Interview Questions

Group Discussions