Chapter 94- Basic Fittings For Hot Water Boilers

Question 1

The following fittings are required on every hot water boiler

Answer 1

Pressure or altitude gauge
Thermometer
Safety relief valve 
Temps true relief device
Stop valve
Blow off or drain connection
Expansion tank

Question 2

In order to indicate the working pressure in hot water boilers, each hot water boiler shall be equipped with a

Answer 2

Pressure or altitude gauge

Question 3

In what manner must a pressure or altitude gauge be connected to a hot water boiler

Answer 3

In such a manner that it cannot be shut off, except by a cock with a tee or lever handle

Question 4

The scale on a gauge must be graduated to what specifications

Answer 4

Not less than 1 1/2 or more than 3 times the maximum allowable working pressure

Question 5

How many pointers does an altitude gauge have?

Answer 5

2

One for water height one for pressure

Question 6

What does it mean if the water pressure reading is lower than the water height reading?

Answer 6

The boiler is no longer full of water

Question 7

A safety relief valve is used for

Answer 7

Steam pressure

Question 8

A pressure relief valve is used for

Answer 8

Liquid

Question 9

What may be installed between a pressure relief valve and the boiler?

Answer 9

Absolutely fucking nothing

Question 10

The discharge piping from a safety relief valve must be connected how

Answer 10

It can’t be connected directly there must be an air break

Question 11

What’s an expansion tank

Answer 11

To provide storage space for excess water due to thermal expansion

Question 12

A pressure or altitude gauge for a hot water boiler does not require a

Answer 12

Siphon

Question 13

In a hot water boiler heating system when the system is cold

Answer 13

The auto fill valve will maintain a system minimum pressure

Question 14

The temperature indicator of a hot water boiler should indicate water temperature

Answer 14

At the boiler outlet

Question 15

Hot water heating boilers must be equipped with a

Answer 15

Thermometer

Question 16

A boiler pressure relief valve

Answer 16

Are usually installed on the boiler

Question 17

For hot water bless operating up to 414 Kpa, a pressure relief valve opening pressure variation may be as much as

Answer 17

20 Kpa

Question 18

A hot water boiler is protected from over pressure by means of

Answer 18

A safety relief valve

Question 19

Hot water boilers have stop valves in there inlet and outlet piping

Answer 19

S that the oiler may be drained without draining the system

Question 20

Boiler stop valves shall be

Answer 20

Identifiable with durable tags

Question 21

During warmup of a cold water boiler excessive pressure buildup is prevented with

Answer 21

An expansion tank

Question 22

The air released from the water in the closed expansion tank type hot water heating system is directed to

Answer 22

The expansion tank

Question 23

In a closed expansion tank system, an air separator

Answer 23

Directs air into the expansion tank

Question 24

In a hot water heating system the closed type expansion tank should be

Answer 24

Partly filled with water

Question 25

When a closed type expansion tank on a hot water boiler is completely filled with water and the water in the system is raised in temperature so that it expands, the result will be that

Answer 25

The pressure build up opens the safety relief device

Question 26

An expanse tank is used to

Answer 26

Allow for the expansion of the water

Question 27

A closed expansion tank is usuall equipped with

Answer 27

A gauge glass

Question 28

How are stop valves which are used on steam outlet connections of heating boilers identified?

Answer 28

With metal tags

Question 29

An automatic fill valve

Answer 29

Is not mandatory

Question 30

The following fittings are desired but not required on hot water heating boilers

Answer 30

Air separator
Automatic fill valve
Circulating pump

Question 31

In hot water heating boiler systems the gauge glasses are normally fitted to the

Answer 31

Expansion tank