steam enters and exhausts through the same port

steam enters at one end and exhausts at the centre

steam enters at the centre and exhausts at the other end

none of the above

1 m

1.5 m

2 m

2.5 m

horizontal

vertical

inclined

none of these

Agree

Disagree

the ratio of heat actually used in producing the steam to the heat liberated in the furnace

the amount of water evaporated or steam produced in kg per kg of fuel burnt

the amount of water evaporated from and at 100 Degree Centigrade into dry and saturated steam

the evaporation of 15.653 kg of water per hour from and at 100? C