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Chemical Process
See What Others Are Saying!
Question
Which of the following sugars is the sweetest?
Options
A. Glucose
B. Fructose
C. Sucrose
D. Lactose
Correct Answer
Fructose
More questions
1. Instrumentation in a plant offers the advantage of
Options
A. greater safety of operation
B. better quality of product
C. greater operation economy
D. all (a), (b) and (c)
Show Answer
Scratch Pad
Discuss
Correct Answer: all (a), (b) and (c)
2. Pick out the wrong statement.
Options
A. Heat capacity of a diatomic gas is higher than that of a monoatomic gas.
B. Equal volumes of Argon and Krypton contain equal number of atoms.
C. Total number of molecules contained in 22.4 litres of hydrogen at NTP is 6.023 x 10
23
.
D. The binary mixture of a particular com-positidn in both vapor and liquid state is known as an azeotropic mixture
Show Answer
Scratch Pad
Discuss
Correct Answer: Equal volumes of Argon and Krypton contain equal number of atoms.
3. Melamine formaldehyde resin which has a very high anti tacking properties, is not used for the
Options
A. electrical insulation purpose.
B. tanning of leather.
C. strengthening of plaster of paris.
D. decorative laminates.
Show Answer
Scratch Pad
Discuss
Correct Answer: strengthening of plaster of paris.
4. Rittinger's crushing law states that
Options
A. work required to form a particle of any size is proportional to the square of the surface to volume ratio of the product.
B. work required to form a particle of a particular size is proportional to the square root of the surface to volume ratio of the product.
C. work required in crushing is proportional to the new surface created.
D. for a given machine and feed, crushing efficiency is dependent on the size of the feed & product.
Show Answer
Scratch Pad
Discuss
Correct Answer: work required in crushing is proportional to the new surface created.
5. Magnesite refractories have low resistance to
Options
A. attack by basic slag.
B. abrasion.
C. disintegration on sudden change of temperature.
D. both (b) and (c).
Show Answer
Scratch Pad
Discuss
Correct Answer: both (b) and (c).
6. Pick out the wrong statement.
Options
A. LPG is also used as fuel for automobiles & small furnaces and for cutting & welding of metals.
B. The minimum temperature, at which a petroleum oil vapor catches fire and continues to burn, is called its flash point.
C. Each ton of petroleum oil on distillation produces about 30-50 Nm
3
of gas.
D. Maximum yield of naphthalene is obtained on distillation of crude oil.
Show Answer
Scratch Pad
Discuss
Correct Answer: The minimum temperature, at which a petroleum oil vapor catches fire and continues to burn, is called its flash point.
7. In chemical process equipments, the conical bottom heads used, usually has an apex angle of
Options
A. 20°
B. 40°
C. 60°
D. 80°
Show Answer
Scratch Pad
Discuss
Correct Answer: 60°
8. Operating condition in the electrical dehydrators for crude oil is about
Options
A. 6.5 kgf/Cm
2
& 95°C.
B. 1 atm. & 110 °C.
C. 20 kgf/cm
2
& 110°C.
D. 50 atm. and 150°C.
Show Answer
Scratch Pad
Discuss
Correct Answer: 6.5 kgf/Cm
2
& 95°C.
9. Radioactive decay follows __________ order kinetics.
Options
A. first
B. second
C. third
D. zero.
Show Answer
Scratch Pad
Discuss
Correct Answer: first
10. Pick out the correct statement:
Options
A. Removal of iron from ceramic material is necessitated (by magnetic separation method) so as to avoid discolouration of ceramic products.
B. The operating cost of shaking screen is more than that of a vibrating screen.
C. Screen capacity does not depend upon the specific gravity of the minerals.
D. Asphalt is best crushed using toothed roll crusher.
Show Answer
Scratch Pad
Discuss
Correct Answer: Removal of iron from ceramic material is necessitated (by magnetic separation method) so as to avoid discolouration of ceramic products.
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