Skip to content
  • Home
  • Contact Us / Report Error
  • Disclaimer

Fuels and Combustion

Bomb calorimeter is used to determine the (where, GCV – Gross Calorific Value. NCV – Net Calorific Value.) ?

August 26, 2021March 7, 2019 by admin
Bomb calorimeter is used to determine the (where, GCV – Gross Calorific Value. NCV – Net Calorific Value.) ?

A. GCV at constant pressure
B. GCV at constant volume
C. NCV at constant pressure
D. NCV at constant volume

Categories Fuels and Combustion

‘Fuel’ can be defined as a substance which produces heat by___________________?

August 26, 2021March 7, 2019 by admin
‘Fuel’ can be defined as a substance which produces heat by___________________?

A. Combustion
B. Nuclear fission
C. Nuclear fusion
D. All A., B. & C.

Categories Fuels and Combustion

Actual flame temperature is always lower than the adiabatic flame temperature, because there is________________?

August 26, 2021March 7, 2019 by admin
Actual flame temperature is always lower than the adiabatic flame temperature, because there is________________?

A. No possibility of obtaining complete combustion at high temperature
B. Always loss of heat from the flame
C. Both A. and B.
D. Neither A. nor B.

Categories Fuels and Combustion

Fuel for a fast breeder nuclear reactor is____________________?

August 26, 2021March 7, 2019 by admin
Fuel for a fast breeder nuclear reactor is____________________?

A. Plutonium
B. Uranium
C. Radium
D. Neptunium

Categories Fuels and Combustion

C.V. (kcal/Nm3) of gaseous fuels _____________ with increase in molecular weight?

August 26, 2021March 7, 2019 by admin
C.V. (kcal/Nm3) of gaseous fuels _____________ with increase in molecular weight?

A. Decreases
B. Increases
C. Remain constant
D. May increase or decrease, depends on combustibles

Categories Fuels and Combustion

Volatile matter content of metallurgical coke may be around ______________ percent?

August 26, 2021March 7, 2019 by admin
Volatile matter content of metallurgical coke may be around ______________ percent?

A. 1-2
B. 10-15
C. 22-26
D. 30-33

Categories Fuels and Combustion

Coking coals are invariably____________________?

August 26, 2021March 7, 2019 by admin
Coking coals are invariably____________________?

A. Lignites
B. Bituminous coals
C. Semi-anthracites
D. Anthracites

Categories Fuels and Combustion

Ratio of primary air to secondary air increases with increase in the rank of coal, because the__________________?

August 26, 2021March 7, 2019 by admin
Ratio of primary air to secondary air increases with increase in the rank of coal, because the__________________?

A. High rank coals have higher amount of volatile matter
B. Ratio of fixed carbon to volatile matter increases
C. Oxygen content progressively decreases
D. Calorific value of the coal increases

Categories Fuels and Combustion

Oxygen required for theoretically complete combustion of 1 Nm3 methane is ______________ Nm3?

August 26, 2021March 7, 2019 by admin
Oxygen required for theoretically complete combustion of 1 Nm3 methane is ______________ Nm3?

A. 2
B. 4
C. 6
D. 1

Categories Fuels and Combustion

Calorific value of wood gas is about ______________ kcal/Nm3?

August 26, 2021March 7, 2019 by admin
Calorific value of wood gas is about ______________ kcal/Nm3?

A. 1500
B. 3300
C. 5400
D. 8500

Categories Fuels and Combustion
Older posts
Newer posts
← Previous Page1 … Page56 Page57 Page58 … Page77 Next →
© 2025 • Built with GeneratePress