Chapter 9 Steam Heating Equipment

Question 1

Radiators are constructed in such a manner as to present a ________ to radiate heat from the steam or hot water contained in the radiator.

a) small internal volume
b) large surface area
c) pleasant appearance
d) smaller area

Answer 1

b) large surface area

Question 2

Packless radiator valves have a __________ diaphragm that completely seals off the valve body to prevent steam from leaking out around the valve stem.

a) Copper
b) Bronze
c) Lead
d) Steel

Answer 2

b) Bronze

Question 3

The exhauster consists of a series of _______ through which water is forced by the vacuum pump.

a) Nozzles
b) Venturis
c) Orifices
d) Pipes

Answer 3

a) Nozzles

Question 4

The air vent consists of a small housing containing a sealed cylinder partially filled with ___________.

a) volatile liquid
b) water
c) steam
d) compressed air

Answer 4

a) volatile liquid