Top 50+ Solved Combustion MCQ Questions Answer
Q. The amount of heat liberated by complete combustion of unit quantity of fuel is known as________
a. Agitation
b. Combustion
c. Calorific value
d. Thermogenesis
Q. The calorific value of gaseous fuels is expressed in terms of
a. kcal
b. kcal/kg
c. C. kcal/m²
d. D. kcal/m3
Q. What is the significance of calorific value?
a. Helps in deciding which fuel is good
b. Helps in locating fuel
c. Helps in deciding ignition temperature
d. Helps in deciding fire point
Q. Which gas has the highest calorific value among given option?
a. Oxygen
b. Helium
c. Hydrogen
d. Nitrogen
Q. Which calorimeter is used to find calorific values of solid and liquid fuels?
a. Boy’s calorimeter
b. Bomb calorimeter
c. Junker’s calorimeter
d. Calvet-type calorimeter
Q. Which calorimeter is used to find calorific values of gaseous fuels?
a. Bomb calorimeter
b. Junker calorimeter
c. Adiabatic calorimeter
d. Isothermal titration calorimeter
Q. What is the factor on which, difference between the two heating values of fuel depends on?
a. Physical properties
b. Reactants
c. Chemical composition
d. Products
Q. The Bomb calorimeter is used to determine the calorific value of:
a. solids and liquid fuels
b. solid and gaseous fuels
c. liquid fuels that can be easily vaporized
d. solid fuels only
Q. If the intake air temperature of I.C. engine increases, its efficiency will
a. increase
b. decrease
c. remain same
d. unpredictable
Q. All heat engines utilize
a. low heat value of oil
b. high heat value of oil
c. net claorific value of oil
d. calorific value of fuel
Q. An engine indicator is used to determine the following
a. speed
b. temperature
c. volume of cylinder
d. m.e.p. and I.H.P.
Q. Fuel oil consumption guarantees for I .C. engine are usually based on
a. low heat value of oil
b. high heat value of oil
c. net calorific value of oil
d. calorific value of fuel
Q. Combustion in compression ignition engines is
a. homogeneous
b. heterogeneous
c. both (a) and (b)
d. laminar
Q. The air requirement of a petrol engine during starting compared to theoretical required forcomplete combustion is
a. more
b. loss
c. same
d. may be more or less depending on engine capacity
Q. Diesel fuel, compared to petrol is
a. less difficult to ignite
b. just about the same difficult to ignite
c. more difficult to ignite
d. highly ignitable