Online Chemical Engineering Test - Chemical Engineering Basics Test 2

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!

Speisses is a mixture of the following:

Arsenides of heavy metals.

Antimonides of heavy metals.

Arsenides & antimonides of heavy metals.

Iron, cobalt and nickel.

[#]

The ratio of the shear stress to the principal stress on a principal plane is

1/2

1/3

[#]

Carbide tipped cutting tools are manufactured by powder metallurgy techniques and have a composition of

90% tungsten carbide and 10% cobalt.

70% aluminium oxide & 30% silica.

30% nickel, 15% chromium & 55% tungsten.

65% tungsten & 35% zirconium.

[#]

Three elastic constants for a completely anisotropic elastic material which follows the Hooke's law are young's modulus, elastic limit stress and yield stress. Which of the following properties is most sensitive to increase in strain rate ?

Tensile strength.

Elastic limit.

Proportional limit.

Yield strength.

[#]

__________ welding will be the most suitable for butt welding two 20 cms thick boiler drum mild steel plates.

Electrical resistance

Electroslag

Plasma torch

Submerged arc

[#]

The units of the rate constant for a second order reaction are

sec^-1. mole°.

moles¹. sec^-1.

moles^-1. sec¹.

moles¹. sec¹.

[#]

Out of the following materials, the one which generally exhibits an yield point is

hard bronze

soft brass

cold rolled mild steel

hot rolled mild steel

[#]

Carbon is present in the form of __________ in grey cast iron.

spheroids

nodular aggregates of graphite

flakes

cementite

[#]

Lap joints are preferred over butt joints in soldering/brazing, because these joints are

weaker in tension but stronger in shear.

weaker in shear but stronger in tension.

stronger in both shear and tension.

The lap joints are easily made.

[#]

10.

High endurance limit of carburised machine parts is because of the fact that carburisation

suppresses any stress concentration produced in the parts.

enhances the yield point of the material.

introduces a compressive layer on the surface.

produces a better surface finish.

[#]

11.

Lead is most readily dissolved in

acetic acid

hydrochloric acid

nitric acid

sulphuric acid

[#]

12.

Toughness of a material is measured by the

Vicker's hardness test.

scratch test.

universal testing machine.

notched bar test.

[#]

13.

The most abundant metal present in the earth's crust is;

iron

copper

titanium

aluminium

[#]

14.

Pressure gauges are never connected directly to the live steam line; rather a loop or syphon is interposed as close as possible to the pressure gauge. This is done to

avoid the overheating of the tubes & bellows which operate them to minimise error and damage.

form a seal of water by steam condensate to fill the tube or bellows at the pressure being measured.

both 'a' & 'b'.

avoid the static head error introduced by steam entry.

[#]

15.

The gases used in the treatment of asthma is a mixture of __________ and oxygen.

helium

argon

neon

none of these

[#]

16.

More than 95% of __________ is present in corrundum.

SiO₂

A1₂O₃

CaSiO₂

MgO

[#]

17.

In case of a, centrifugal pump, the ratio h₁/h₂ is termed as the __________ efficiency (where, h₁ = actual measured head & h₂ = head imparted to the fluid by impeller).

mechanical

overall

volumetric

impeller

[#]

18.

Solute atoms which cause yield point phenomenon in mild steel are/is

aluminium

boron

carbon

nitrogen

[#]

19.

Thermit welding is categorised as the __________ welding.

forge

fusion

resistance

arc

[#]

20.

Runga-Kutta method is used to solve a/an

ordinary differential equation of nth order.

simultaneous non-linear equation.

linear differential equation.

none of these.

[#]

Quick links

Quantitative Aptitude

Verbal (English)

Reasoning

Programming

Interview

Placement Papers

Online Chemical Engineering Test - Chemical Engineering Basics Test 2

Marks : 2/20

Test Review : View answers and explanation for this test.

Current Affairs

Interview Questions

Group Discussions