Ps-Pa

Pa-Ps

Pa+Pa

None Of These

0°C

100°C

saturation temperature at given pressure

room temperature

linearly

slowly first and then rapidly

rapidly first and then slowly

inversely

the given boiler with the model

the two different boilers of the same make

two different makes of boilers operat¬ing under the same operating conditions

any type of boilers operating under any conditions.

0.1 to 0.2 kg

0.2 to 0.4 kg

0.6 to 0.8 kg

1.0 to 1.5 kg