In _________ system fuel from a central pulverizing unit is delivered to a bunker and then to the various burners?

A. Unit
B. Central
C. None of the above

The amount of air which is supplied for complete combustion is called___________?

A. Primary air
B. Secondary air
C. Tertiary air

Bucket elevators are used for___________?

A. Carrying coal in horizontal direction
B. Carrying coal in vertical direction
C. Carrying coal in any direction

Method which is commonly applied for unloading the coal for small power plant is___________?

A. Lift trucks
B. Coal accelerators
C. Tower cranes
D. Belt conveyor

Load carrying capacity of belt conveyor is about___________?

A. 20 to 40 tonnes/hr
B. 50 to 100 tonnes/hr
C. 100 to 150 tonnes/hr
D. 150 to 200 tonnes/hr

In coal preparation plant, magnetic separators are used to remove___________?

A. Dust
B. Clinkers
C. Iron particles
D. Sand

Secondary air is the air used to______________?

A. Reduce the flame length
B. Increase the flame length
C. Transport and dry the coal
D. Provide air round the burners for getting optimum combustion

Primary air is that air which is used to_____________?

A. Reduce the flame length
B. Increase the flame length
C. Transport and dry the coal
D. Provide air around burners for get¬ting optimum combustion

Caking coals are those which__________?

A. Burn completely
B. Burn freely
C. Do not form ash
D. Form lumps or masses of coke

The capacity of large turbo-generators varies from___________?

A. 20 to 100 mw
B. 50 to 300 mw
C. 70 to 400 mw
D. 100 to 650 mw