Online Chemical Engineering Test - Chemical Engineering Basics Test 1

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Total number of questions: 20.
Time allotted: 30 minutes.
Each question carries 1 mark; there are no negative marks.
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The order of a chemical reaction

can be determined only experimentally

can be determined from the stoichiometry of the reaction.

can not be zero.

can be fractional.

[#]

Optical activity is a/an __________ property.

additive

constitutive

both (a) & (b)

neither (a) nor (b)

[#]

A material being tested for endurance strength is subjected to the __________ load.

impact

completely reversed

dynamic

static & dynamic

[#]

During sensible heating of humid air

relative humidity increases.

dew point remains constant.

dry bulb & wet bulb temperature increases.

both 'b' & 'c'.

[#]

Diamagnetic materials

are magnetised by eddy currents only.

are non-magnetic and can not be magnetised.

are magnetised in direction opposite to the magnetic field.

can be magnetised in one direction only.

[#]

Fibre reinforced plastic (FRP) are

made of glass fibre and thermoplastic resins.

anisotropic.

made of thermosetting resin and glass fibre.

both 'b' & 'c'

[#]

Percentage of differential pressure lost in a venturimeter with a tapering of 15° may be about

[#]

Maraging steels derive their strength from the following mechanism:

A fine, highly dislocated and strong martensite.

Fine dispersions of intermetallics of Fe, Ni, Ti etc.

Fine dispersions of alloy carbides in a ferrite matrix.

Fine dispersions of Fe₃ C nucleated on dislocations in austenite.

[#]

Stresses encountered in the metal forming processes are less than the __________ of the material.

fracture strength

yield strength

elastic limit

limit of proportionality

[#]

10.

X-rays are

positively charged.

negatively charged.

neutral.

of higher wavelength than visible light.

[#]

11.

__________ are not emitted by radioactive substances.

α-rays

β-rays

protons

positrons

[#]

12.

If Reynolds number is greater than 1, then the

viscous force is larger than the inertia force.

inertia force is larger than the viscous force.

inertia force is larger than the surface tension force.

inertia force is larger than the gravitational force.

[#]

13.

Which of the following is a permanent fastening?

Rivets

Bolts

Screws

Keys

[#]

14.

Which of the following metals can not be extracted by pyrometallurgical process from its sulphide ore?

Copper

Mercury

Lead

None of these

[#]

15.

Heat transfer by __________ is almost absent in case of fluidised bed drying operation.

radiation

conduction

convection

both (b) & (c)

[#]

16.

Pick out the correct statement

Jet engine can work, where there is no atmosphere.

Rocket engines cannot work, where there is no atmosphere.

Rocket engines carry oxygen required for the combustion in the form of oxidiser.

Jet engines also carry oxidiser.

[#]

17.

Load cells used for the measurement of weight has

compact & rugged construction with an accuracy of 0.1 to 1%.

no moving parts and incurs negligible deflection under load.

provision of thermal compensation and is hermetically sealed.

all 'a', 'b' & 'c'

[#]

18.

Highest cutting speed is achieved by the __________ tool material.

high speed steel

carbide

cast alloy

plain carbon steel

[#]

19.

Stainless steel is welded using

oxy-acetylene flame.

oxy-hydrogen flame.

arc welding.

inert gas arc welding.

[#]

20.

'Amortization' in respect of financial obligation of a company means the

liquidation of financial obligations on instalment basis.

commitment of financial obligation on priority.

liquidation of all the obsolete equipments of the company.

modernisation of the plant equipments.

[#]

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Online Chemical Engineering Test - Chemical Engineering Basics Test 1

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