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- Question
The accentric factor of a materical, '?', is defined as ? = -log10(Prsat)Tr-1 = 0.7, where, Prsat = reduced vapor pressure, Tr = reduced temperature. The value of accentric factor is always
Options- A. > 2
- B. < 1
- C. > 1
- D. < 3
- Correct Answer
- < 1
- 1. Which of the following is a heat treatment furnace?
Options- A. Muffle furnace
- B. Annealing furnace
- C. Reheating furnace
- D. Rotary kiln Discuss
- 2. __________ mills fall in the category of tumbling mills,
Options- A. Ball and pebble
- B. Rod and tube
- C. Compartment
- D. all (a), (b) & (c) Discuss
- 3. Nitro-phosphate (manufactured at Trom-bay) is a __________ fertiliser.
Options- A. mixed
- B. complex
- C. highly hygroscopic
- D. highly explosive Discuss
- 4. With increasing alumina content, the fusion point of high alumina refractories
Options- A. increases.
- B. decreases.
- C. remains constant.
- D. may increase or decrease ; depends on its alumina content. Discuss
- 5. Main constituent of cotton fibre is
Options- A. lignin
- B. cellulose
- C. starch
- D. gelatine Discuss
- 6. Cv for monoatomic gases is equal to(where, R = gas constant)
Options- A. R
- B. 1.5 R
- C. 2R
- D. 3R Discuss
- 7. Addition of a non-volatile solute to a pure solvent
Options- A. increases its freezing point.
- B. increases its boiling point.
- C. decreases its freezing point.
- D. both (b) and (c) Discuss
- 8. For coarse reduction of hard solids, use
Options- A. impact
- B. attrition
- C. compression
- D. cutting Discuss
- 9. Which of the following is not a natural fibre?
Options- A. Silk
- B. Viscose rayon
- C. Wool
- D. Cotton Discuss
- 10. The function of an economiser in a boiler is to preheat the
Options- A. feedwater
- B. combustion air
- C. pulverised coal
- D. furnace oil Discuss
More questions
Correct Answer: Annealing furnace
Correct Answer: all (a), (b) & (c)
Correct Answer: complex
Correct Answer: increases.
Correct Answer: cellulose
Correct Answer: 1.5 R
Correct Answer: both (b) and (c)
Correct Answer: compression
Correct Answer: Viscose rayon
Correct Answer: feedwater
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