Fuels and Combustion
Stack (chimney) height in a big thermal power plant is dictated by the

Limitation of constructional facilities
Draught to be created
None of these
Pollution control aspect

ANSWER DOWNLOAD EXAMIANS APP

Fuels and Combustion
Prime coking coal is always blended with medium or non- coking coal before ear-bonisation

Neither A nor B
To check against its excessive swelling during heating, which may exert high pressure and damage coke oven walls
Both A & B
Because, it alone produces unreactive coke

ANSWER DOWNLOAD EXAMIANS APP