Chemical Engineering Basics

11. __________ circuit is most commonly used to measure strain with the help of a strain gauge.

  1. Ballast
  2. Voltage balancing potentiometric
  3. Simple current sensitive
  4. None of these

Correct answer: (B)
Voltage balancing potentiometric

12. __________ fluid force is not considered in the Navier-Stokes equation.

  1. Turbulent
  2. Viscous
  3. Gravity
  4. Pressure

Correct answer: (A)
Turbulent

13. __________ flux is used for the extraction of metal from its self fluxing ores.

  1. No
  2. Acid
  3. Basic
  4. Neutral

Correct answer: (A)
No

14. __________ furnace is generally used in the non-ferrous foundries.

  1. Direct arc
  2. Indirect arc
  3. Resistance
  4. Induction

Correct answer: (B)
Indirect arc

15. __________ glass is used in the mercury in glass thermometer meant for measuring a temperature of 500°C.

  1. Borosilicate
  2. High silica
  3. Supermax
  4. Lead

Correct answer: (C)
Supermax

16. __________ has a negative co-efficient of linear expansion.

  1. Iron
  2. Copper
  3. Rubber
  4. Nickel

Correct answer: (B)
Copper

17. __________ has the highest melting point out of the following.

  1. Tungsten
  2. Zirconium
  3. Molybdenum
  4. Tantalum

Correct answer: (A)
Tungsten

18. __________ iron is produced by the annealing of white cast iron.

  1. Malleable
  2. Nodular
  3. Ductile
  4. Grey

Correct answer: (A)
Malleable

19. __________ is a non volatile film forming constituent of a paint.

  1. Thinner
  2. Dryer
  3. Drying oil
  4. None of these

Correct answer: (C)
Drying oil

20. __________ is a special constituent of chlorophyll without which photosynthesis is not possible.

  1. Calcium
  2. Nitrogen
  3. Phosphorous
  4. Hydrogen

Correct answer: (B)
Nitrogen

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