Chemical Engineering Quiz

Chemical Enginering Quiz

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Chemical Engineering

Chemical Engineering Quiz

1 / 25

Copper has poor weldability ;-

True

False

2 / 25

For the same flow rate of a liquid , the pressure drops is at least for:-

Flow nozzle

Orificemeter

Venturimeter

3 / 25

Viscosity of water is about ___________ times that of air at room temperature :-

155

4 / 25

In variable volume fed batch culture , the broth volume remains almost the constant :-

True

False

5 / 25

The batch culture can be used to produce ;-

Organic acids

Amino acids

Antibiotics

6 / 25

What is the normal range of exit cone angle of a venturimeter:-

7 - 15

15 - 25

2 - 5

7 / 25

Aluminum storage vessel can be used to store ;-

Aqua regia

None of them

Ferrous sulphate

8 / 25

________________ is a type of fluid based on viscosity:-

Real fluid

Ideal fluid

Newtonian fluid

All of them

9 / 25

Which is an acidic refractory ;-

Fireclay

Dolomite

Magnesite

10 / 25

When larger particles are subjected to fluidisation , the corresponding bed produced is termed as the ______________ bed;-

Spouted

Boiling

Sluggish

11 / 25

In case of a centrifugal pump,the theoretical head developed is dependent on the __________ impeller:-

all of them

speed of

fluid velocity of leaving

diameter of

12 / 25

Potential flow is characterized by the:-

Frictionless flow

Both a, b

None

Irrational flow

13 / 25

What are the factors on which friction depends at nanoscale ;-

Lattice parameters

atomic radius

Density

14 / 25

Roof of a basic electric furnace is made of _____________ bricks :-

None of them

Chromite

Silica

15 / 25

Slugging in a fluidised bed can be avoided by using:-

tall narrow vessel

deep bed of solid

shallow beds of solid and proper choice of particle size

16 / 25

Which is not a key ingredient of Wet etching process :-

Acid

Neutralizer

Oxidizer

17 / 25

Which dye is colourless at acidic pH and becomes red at basic pH:-

Thymol blue

Phenolphthalein

Methyl red

18 / 25

The velocity at which the flow changes from laminar flow to turbulent flow is called;-

Velocity of approach

Critical velocity

Sub sonic velocity

19 / 25

What is the physical significance of Reynold's number :-

No slip boundary condition

Unit less quantity

Dimensionless quantity

20 / 25

Pressure drop in a packed bed for laminar flow is given by the ____________ equation:-

Leva's

Blake Plummer

Kozney Karman

21 / 25

At low Reynold number, Viscous forces control and Inertial forces are unimportant:-

False

True

22 / 25

Upto what value of 'Mach number' a fluid may be considered as incompressible:-

0.03

0.3

23 / 25

Radioactive substance present in the polluted water stream can be removed by adsorption in ion exchange materials :-

False

True

24 / 25

Inclined tube manometer is used for the measurement of _____________ pressure:-

Small differential

Atmospheric

Absolute

25 / 25

Addition of _______ in steel can help in increasing the depth of hardness ;-

Tungsten

Chromium

Nickel

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