Chemical Engineering MCQs

Chemical Engineering MCQs

The following Chemical Engineering MCQs have been compiled by our experts through research, in order to test your knowledge of the subject of Chemical Engineering. We encourage you to answer these 20 multiple-choice questions to assess your proficiency.
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1: Fog is an example of colloidal system of

A.   Liquid dispersed in gas.

B.   Gas dispersed in liquid.

C.   Solid dispersed in liquid.

D.   Solid dispersed in gas.

2: The softness or hardness of a grinding wheel depends upon the type & amount of bonding material used. For general purpose cutter grinding __________ grinding wheel is normally used.

A.   Silicon carbide

B.   Aluminium oxide

C.   Hard

D.   Soft

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

A.   65% tungsten & 35% zirconium.

B.   0% nickel, 15% chromium & 55% tungsten.

C.   90% tungsten carbide and 10% cobalt.

D.   70% aluminium oxide & 30% silica

4: Auto collimator is used to check

A.   Angle

B.   Rotor balancing

C.   Flatness

D.   Roughness

5: Baffles provided on the shell side of a shell and tube heat exchanger are meant for

A.   Providing support for the tubes.

B.   Improving heat transfer.

C.   Providing support for the tubes & preventing the fouling of tubes & stagnation of shell side fluid.

D.   Preventing the fouling of tubes & stagnation of shell side fluid.

6: Chromium molybdenum steel can not be welded using __________ welding.

A.   Any of these

B.   Oxy-acetylene

C.   Electrical resistance

D.   Thermit

7: Which one of the following is incombustible?

A.   H2

B.   CCl4

C.   S

D.   C2H2

8: Friction factor for fluid flow in pipe does not depend upon the

A.   Pipe length.

B.   Mass flow rate of fluid.

C.   Fluid density & viscosity.

D.   Pipe roughness.

9: On oscilloscope screen for dynamic measurement, lissajous diagram is normally used to determine the __________ of the input signal.

A.   Frequency

B.   Amplitude

C.   None of these

D.   Damping

10: For separating small pieces of metal from engine oil of a car, the best separating technique is the

A.   Fractional distillation

B.   Chromatography

C.   Evaporation

D.   Filtration

11: Fire refining process is employed in case of

A.   Aluminum

B.   Zinc

C.   Tin

D.   Copper

12: Tin based white metals are used, where bearings are subjected to

A.   High pressure & load.

B.   Low pressure & load

C.   High temperature.

D.   Large surface wear

13: Speisses is a mixture of the following:

A.   Antimonides of heavy metals.

B.   Iron, cobalt and nickel.

C.   Arsenides of heavy metals.

D.   Arsenides & antimonides of heavy metals.

14: The temperature at which ferromagnetic material can no longer be magnetised by the outside forces, is termed as the

A.   Inversion temperature

B.   Curie temperature.

C.   Critical point

D.   Eutectic temperature.

15: Larger length & diameter water pipes are made by

A.   Electrical resistance welding.

B.   Semi-centrifugal casting.

C.   Die casting.

D.   Continuous casting.

16: What is the value of included angle of a triangular notch for maximum discharge?

A.   120°

B.   90°

C.   60°

D.   30°

17: In troposphere (the weather domain), the temperature ‘t’ at height ‘h’ above the sea level in metres is given by (where, temperature at sea level is 15°C and t is in °C.)

A.   T = 15 + 0.0065 h

B.   T = 15 - 0.0065 h

C.   T = 0.0035 h - 15

D.   T = 15 - 0.0035 h

18: All of the following alloying elements of steel increases hardness but sacrifice ductility, except

A.   Chromium

B.   Nickel

C.   Vanadium

D.   Molybdenum

19: The hardest known natural material is _____.

A.   Halves

B.   Diffusion

C.   Surface tension

D.   Diamond

20: Glycerophospholipids can interact both with other lipids and water because they contain ________.

A.   Polar regions; nonpolar regions

B.   Single bonds; double bonds

C.   Saturated fatty acids; unsaturated fatty acids

D.   Glycerol; sphingosine

E.   Bile salts; cholesterol

21: Maltose is a _______.

A.   Type of starch

B.   Complex carbohydrate

C.   Monosaccharide

D.   Disaccharide

22: The element in this list with chemical properties similar to magnesium is ________.

A.   Sodium

B.   Boron

C.   Carbon

D.   Strontium

E.   Chlorine

23: The volume in the pump when the pump piston is all the way down represents the _______.

A.   Blood vessel diameter

B.   End systolic volume

C.   Vasoconstriction

D.   Decreasing preload

24: Adding bile to triglycerides _______.

A.   Chemically modifies the triglycerides

B.   Causes them to clump

C.   Increases the surface area of the triglycerides

D.   Digests triglycerides into monoglyceride and two fatty acids

25: The scientific method begins by making _________ about the world around us.

A.   Patterns or cause-and-effect relationships.

B.   Observations

C.   Placebo effect

D.   Are ofteh found on food products

26: The greatest expression of the lac operon occurs when lactose levels are _____.

A.   When bound to lactose, the LacI protein changes its shape

B.   The AraC protein is an activator when its bound to arabinose

C.   High glucose concentrations prevent the transport of lactose into the cell

D.   Glucose is the input for glycolysis and cellular respiration