Question 1. Name the fan more suitable for high pressure application
A. Propeller type fan
B. Tube axial fan
C. Backward curved centrifugal fan
D. None of the above
Ans. C
Question 2. ESP works on the principle of
A. Corona effect
B. Induction effect
C. Skin effect
D. None of the above
Ans. A
Question 3. A solution having 4 pH is more acidic than a solution of 7 pH
A. 03 times
B. 30 times
C. 100 times
D. 1000 times
Ans. D
Question 4. Demineralisation of water is the process to remove
A Dissolved oxygen
B. Dissolved salts
C. Carbon dioxide
D. Chlorine
Ans. B
Question 5. Which of the following parameter remains constant during ideal throttling process
A. Pressure
B. Entropy
C. Enthalpy
D. Temperature
Ans. C
Question 6. Which of the following substance will have same percentage in ultimate and proximate a
A. Hydrogen
B. Moisture
C. Ash
D. Volatile matter
Ans. C
Question 7.Atomising of LDO in burners is carried out through
A. Steam
B. Compressed air
C. Self pressure
D. All of the above
Ans. D
Question 8. The efficiency of collection in ESP will _______ if the resistivity of the fly ash increases
A. Increase
B. Remain the same
C. Decrease
D. First decrease and then increase
Ans. D
Question 9. Which of the following is considered as general purpose welding electrode?
A. E-6013
B. E-7018
C. E-8018 B2
D. E-9015 B9
Ans. A
Question 10. The temperature at which a typical fluidised bed combustor operates is _____ than that of conventional pulverised fuel boiler.
A. Less
B. More
C. Same
D. Can be any of the above
Ans. A
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