Chemical Engineering Multiple Choice Quiz Questions - Set 02 - ObjectiveBooks

Chemical Engineering Multiple Choice Quiz Questions - Set 02


1. Which of the following transducers is most commonly used for the measurement of shock and vibration?
Linear variable differential transducer (LVDT)
Dial gauge
Accelerometer
None of these

2. Unit molar solution of __________ is the best conductor of electricity.
Sodium chloride
Acetic acid
Sulphuric acid
Sucrose

3. Stress and strain are related by __________ elastic constants for a linearly elastic, homogeneous & isotropic material.
One
Two
Three
Four

4. Material of construction of surveying metallic tapes is __________ which has low coefficient of expansion & enough strength.
Constantan
Invar
Pewter metal
Monel metal

5. Maximum carbon content in cast iron is __________ percent.
3.8
4
4.3
4.6

6. Which is the only metal that exists in liquid state at room temperature?
Sodium
Mercury
Lithium
Strontium

7. Ceramic materials are
Organic in nature
Stronger in compression than in tension
Always amorphous in nature
Always bad heat conductors

8. Volute casing of a centrifugal pump does not facilitate
Uniform flow of fluid coming out of the impeller
Increase in the pump efficiency
Conversion of the part of the velocity head to the pressure head
Conversion of the part of the pressure head to velocity head

9. Colloids can be purified by
Dialysis
Reverse osmosis
Coagulation
Peptization

10. Salvage value is the most flexible criteria for analyzing a financial investment. 'Salvaging' means
Disposing off a machine/property on as where is basis
Disposing off machine/property, which is no longer useful in the present scenario
Mortgaging the obsolete machine/property
Writing off the obsolete machine/ property

11. L.D. converters are generally lined with
Magnesite
Fireclay
Chrome magnesite
Silica

12. Machinability of hard alloys & tool steels is improved by
Spheroidising
Annealing
Tempering
Normalising

13. Semi-conductors normally employ __________ bonding.
Co-ordinate
Ionic
Covalent
Metallic

14. The moment of inertia of a body comes into play in __________ motion.
Curvilinear
Linear
Rotational
None of these

15. Material of construction of foundry crucible is
Graphite
Lead
Porcelain
Stainless steel

16. A friction lighter is normally used for lighting gas welding torch, because of the reason that
Its initial cost is very low
Duration of spark created is very small
Safety of welder is ensured
It is easier to operate and maintain

17. Commonly employed coolant for high pressure turbo generator is
Air
Carbon dioxide
Hydrogen
Water

18. Which of the following is the most suitable for removing fine particles (< 1 micron diameter) from air below its dew point?
Venturi scrubber
Electrostatic precipitator
Cyclone separator
Fabric filter

19. Grey cast iron (used for making underground water pipes and manhole covers) as compared to steel has higher
Ductility
Impact strength
Machinability
Melting point

20. Thermoplastics are never moulded using
Injection moulding
Blow moulding
Extrusion
Compression moulding

21. Largest application of laser welding is in __________ welding.
Microspot
Under water
Precious metals
Heavy structure

22. If a heat transfer surface is pock-marked with a number of cavities, then as compared to a smooth surface the heat transfer by __________ will not increase.
Convection
Nucleate boiling
Radiation
Conduction

23. Deformation band is absent in materials having __________ lattice crystal structure.
FCC
BCC
HCP
None of these

24. Minimum diameter of the tube used for making water manometer should be __________ mm to avoid a correction for the effect of capillarity.
1
1.5
3
6

     Score =

Correct answers:

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