Chemical Engineering Basics Mcqs
This set of Engineering Multiple Choice Questions & Answers (MCQs) focuses on “ Chemical Engineering Basics ”. These Mcqs are chosen from a collection of most authoritative and best reference books on Chemical Engineering. Our aim is to prepare an individual for competitive exams like NTS, GAT, ECAT, University and College entrance exams, Jobs and interviews. One should practice our MCQS to assimilate Chemical Engineering Basics comprehensively.
2. Shampoos are commercially not available in the form of ___________________?
Powder
Gaseous mixture
Solution
Emulsion
Answer & Solution
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3. In multipass welds, shot peening is done after each pass to__________________?
Close the surface porosity
Break the continuity of columnar grains
Flatten the weldment
Introduce texture in the weld
Answer & Solution
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4. Pick out the correct combination about the role of various additives used in polymers ?
Plasticiser: increases the polymer strength
Heat stabiliser: increases the maximum service temperature
Fillers: Does not affect the property of polymer but increases its weight
Lubricants: increases the flexibility of polymers
Answer & Solution
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5. Which of the following is not used as a bearing material ?
Copper-lead alloys
Babbitts
Bronzes
Cermets
6. The malleability of a material is the property by virtue of which it can be rolled or hammered into thin sheets. Which of the following materials has the maximum malleability ?
Lead
Copper
Aluminium
Wrought iron
7. Oxide layer formed on the non-ferrous metal surface after its annealing is__________________?
Removed by acid pickling
Hammered into the surface
Removed with coarse emery cloth
Left as such to protect the surface
Answer & Solution
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8. Case hardening is not done by________________?
Nitriding
Hot dipping
Electroplating
Both ‘B’ & ‘C’
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9. Upto the critical radius of insulation, added insulation, will____________________?
Increase the heat loss
Decrease heat loss and will have no effect beyond that
Decrease heat flux
Reduce convection heat loss compared to conduction heat less
Answer & Solution
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10. Chlorine acts as a bleaching agent only in the presence of ______________________?
Dry air
Pure oxygen
Moisture
Sunlight
Answer & Solution
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11. Powder metallurgy technique is used in the production of ____________________ tools ?
Tungsten carbide
High carbon steel
High speed steel
Drilling
Answer & Solution
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12. Rain drops falling through atmospheric air attain limited terminal velocity, because of ____________________?
Upward thrust due to air
Viscous force exerted by air
Surface tension effects of water
Force of gravity
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13. Volume of blast furnace slag is about _______________ times the volume of hot metal (pig iron) of the same weight ?
1.5
3
5
7
14. Colour comparator is used to measure the___________________?
PH value
Electrode potential
Colour intensity
None of these
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15. A reduction in thermal resistance during heat transfer does not occur in the___________________?
Convection heat transfer by stirring the fluid and cleaning the heating surface
Conduction heat transfer by reduction in the material thickness and increase in the thermal
Ductivity
Radiation heat transfer by increasing the temperature and reducing the emissivity
Answer & Solution
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