Q. Which of the following has the highest flame velocity ?

View solution

Q. Which of the following constituents of a fuel does not contribute to its calorific value on combustion ?

View solution

Q. Lurgi gasifier (high pressure gasifier) as compared to Kopper Totzek gasifier (atmospheric pressure gasifier) produces

View solution

Q. For long flame and easy ignition, the coal used should have

View solution

Q. Which of the following has the highest calorific value (kcal/Nm³) ?

View solution

Q. Naphthalene is used for making

View solution

Q. The advantage of firing pulverised coal in the furnace lies in the fact, that it

View solution

Q. A coal having higher volatile matter content, has lower

View solution

Q. Weathering of coal during storage causes

View solution

Q. With increase in the temperature of carbonisation of coal

View solution

Q. The gasification reaction represented by, C + H₂O = CO + H₂, is

View solution

Q. Insitu theory and drift theory are related to the

View solution

Q. Pick out the wrong statement.

View solution

Q. Heat penetration rate in narrow coke ovens in high temperature carbonisation of coal is around __________ cm/hr.

View solution

Q. Which of the following will generate maximum volume of product of complete combustion (Nm³/Nm³ of fuel) ?

View solution

Q. Which of the following will be unsuitable for dust cleaning from flue gas at 400°C from a pulverised coal fired boiler ?

View solution

Q. Emission of dense white smoke out of the chimney of a thermal power plant is an indication of the use of

View solution

Q. Pick out the wrong statement.:

View solution

Q. A good metallurgical coke should have very low

View solution

Q. Cannel coal

View solution