Chemical Engineering Quiz - Set 01

Quiz Questions - Set 01

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01. The preferred alloying element for low temperature applications of steel is

     (A) Cr

     (B) N

     (C) Mo

     (D) Ni

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02. The phenomenon of strain-ageing is generally experienced with

     (A) Cast iron

     (B) Low carbon steel

     (C) High manganese steel

     (D) High carbon steel

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03. Which of the following welding processes employs the highest welding temperature?

     (A) Arc welding

     (B) Gas welding

     (C) Thermit welding

     (D) Resistance welding

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04. In a casting, cold shut defect is caused by

     (A) Low burning temperature

     (B) Melt-mould reactions

     (C) Faulty gating system

     (D) Very low mould permeability

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05. Fatigue strength of a metal is improved by

     (A) Overstressing

     (B) Scratching the surface

     (C) Raising the temperature

     (D) Under-stressing

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06. Refrigerative cooling employed during long distance transportation of food stuffs is normally done by

     (A) Ice

     (B) Liquid nitrogen

     (C) Liquid oxygen

     (D) Vacuum evaporation

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07. Which of the following accounts for maximum loss of energy in a coal fired boiler?

     (A) Incomplete combustion of fuel

     (B) Outgoing flue gases

     (C) Radiation heat losses

     (D) Unburnt carbon in ash

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08. Which of the following is a disaccharide?

     (A) Lactose

     (B) Starch

     (C) Cellulose

     (D) Fructose

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09. Reduction reaction involves the

     (A) Loss of electrons

     (B) Increase in oxidation number

     (C) Gain of electrons

     (D) Addition of oxygen

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10. The hardness of a grinding wheel is specified by the

     (A) Alphabetical letter

     (B) Rockwell hardness number

     (C) Brinell hardness number

     (D) None of these

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11. Creep consideration is the most important in case of the

     (A) Blades of gas turbines

     (B) Steam engine flywheel

     (C) Cast iron pipes

     (D) Cycle chains

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12. With increase in pressure, the saturation temperature of steam

     (A) Increases rapidly first and then slowly

     (B) Increases slowly first and then rapidly

     (C) First increases and then decreases

     (D) None of these

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13. To improve the machinability of steel by its softening, it is subjected to

     (A) Cold working

     (B) Annealing

     (C) Shot blasting

     (D) Heating

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14. The best criterion for analysing an economic investment is the

     (A) Rate of return criterion

     (B) Present value method

     (C) Salvage value

     (D) Future value method

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15. A pipeline buried in soil is commonly protected from corrosion by

     (A) Anodic protection

     (B) Cathodic protection

     (C) Using inhibitors

     (D) Using a special alloy resistant to corrosion

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 Next Quiz Tests:

Set 01

Set 02

Set 03

Set 04

Set 05

Set 06

Set 07

Set 08

Set 09

Set 10

Set 11

Set 12

Set 13