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!

At low Reynolds number

viscous forces are unimportant.

viscous forces control.

viscous forces control and inertial forces are unimportant.

gravity forces control.

[#]

With increase in the ratio of orifice diameter to pipe diameter, the fraction of the orifice pressure differential that is permanently lost

increases

decreases

remains unchanged

increases exponentially

[#]

Acidity or alkanity of a solution is expressed by its pH value, which is defined as (where, [H⁺] = hydrogen ion concentration in the solution).

none of these

[#]

Which of the following must be stored in silos and not in open yard ?

Coke breeze

High V.M. bituminous coal

Sand

None of these

[#]

Fermentation is adversely affected by the

presence of air.

absence of air.

high concentration.

presence of ammonium salts.

[#]

The dew point of a saturated gas phase equals the __________ temperature.

gas

room

wet bulb

none of these

[#]

In case of unsaturated air

dew point < wet bulb temperature

wet bulb temperature < dry bulb temperature

both (a) and (b)

neither (a) not (b)

[#]

The temperature at the eutectic point of the system is the __________ temperature that can be attained in the system.

lowest

highest

average

none of these

[#]

An irreversible first order reaction is being carried out in a CSTR and PFR of same volume. The liquid flow rates are same. The relative conversion will

be more in CSTR than in PFR.

be more in PFR than in CSTR.

be same in both cases.

depend on the temperature.

[#]

10.

Urea autoclave is made of

cast iron

refractory blocks

stainless steel

lead lined steel

[#]

11.

A magnetic material becomes __________ above the Curie temperature.

ferromagnetic

diamagnetic

paramagnetic

none of these

[#]

12.

Post weld heat treatment is done by

normalising

stress relieving

tempering

solution annealing

[#]

13.

The heating capacity of muffle furnace depends on the

surface area & emissivity of the stock.

properties of the muffle wall (temperature, area, emissivity).

both (a) & (b)

neither (a) nor (b)

[#]

14.

Porosity is induced in insulating refractories by adding

powdered naphthalene.

ammonium chloride/sulphate.

calcium phosphate.

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

[#]

15.

Polyurathane can not be used for making

mattresses & foam

coating material

adhesives

bottles

[#]

16.

__________ of air does not increase with increase in temperature.

Density

Thermal diffusivity

Viscosity

Thermal conductivity

[#]

17.

The surface tension of a liquid, at critical temperature is

indeterminate.

zero.

infinity.

same as that at any other temperature.

[#]

18.

Electrostatic separation of minerals from each other is based on their differences in the following property.

Densities.

Magnetic permeabilities.

Electrical conductivities.

Hardness.

[#]

19.

The driving force for the sintering of a powder compact is

strain energy.

surface energy.

volume energy.

stacking fault energy.

[#]

20.

With increase in temperature, the electrical conductivity of semiconductors

increases.

decreases.

remain constant.

either (a) or (b), depends on the type of semi-conductor.

[#]

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