Quiz

Question 1

Boiler fittings are components directly attach to the boiler

Answer 1

True

Question 2

Saftey valves on steam boilers are desugn to open slowly

Answer 2

False

Question 3

The sefety valve should chatter to prevent damage to the disk

Answer 3

False

Question 4

Safety valves are tested only by performing a try lever test

Answer 4

False

Question 5

A safety valve try lever test is performed with the boiler at 15 psi or higher

Answer 5

False

Question 6

The steam pressure gauge must be connected to the higher part of the steam side of the boiler

Answer 6

True

Question 7

A siphon is connected between the boiler and the steam pressure gauge to prevent water from entering the bourdom tube

Answer 7

False

Question 8

A slow gauge reads less pressure than is actually in the boiler

Answer 8

True

Question 9

Live steam allowed to enter the bourdom tube of a steam pressure gauge will damage the gauge

Answer 9

True

Question 10

The water column should be blown down once a shift

Answer 10

True

Question 11

The water column is used to indicate the water level in the blowdown tank

Answer 11

False

Question 12

With the boiler in ita NOWL the gauge glass is aproximately half full

Answer 12

True

Question 13

The purpose of the water column is to slow down the turbulance of the boiler

Answer 13

True

Question 14

In low pressure steam boilers, two methods of determining water level are try cocks and gauge glasses

Answer 14

True

Question 15

Gauge glasses are calibrated in pounds per square inch

Answer 15

False

Question 16

With the water at the NOWL, steam is discharge from the bottom try cock when it opened

Answer 16

False

Question 17

With the water at the NOWL, the middle try cock discharges a mixture of water and steam when it opened

Answer 17

True

Question 18

With water at the NOWL, water is dischage from the top try cock when opened

Answer 18

False

Question 19

If the top line of the gauge glass is closed or clogged, the glass will fill with water

Answer 19

True

Question 20

If the bottom line to the gauge glass is close or clogged, the glass will be empty

Answer 20

False

Question 21

To ensure the lines to the gauge glass are clear, it is recomended that the gauge glass be blown down at least once a month

Answer 21

False

Question 22

The bottom blowdown line must be conected to the highest part of the steam side of the boiler

Answer 22

False

Question 23

A high surface tension on boiler water can lead to foaming

Answer 23

True

Question 24

Surface impurities are remove from the boiler by using the bottom blowdown valves

Answer 24

False

Question 25

Boilers equipped with a quick-opening valve and a slow-opening valve must have the quick-opening valve closest to the boiler

Answer 25

True

Question 26

Only watertube boilers have bottom blowdown valves

Answer 26

False

Question 27

A high water level in a boiler can lead to carryover

Answer 27

True

Question 28

When dumping a boiler there should be a maximum steam pressure in the boiler to force water from the boiler

Answer 28

False

Question 29

To correct a high water level condition, the operator must open the bottom blowdown valve

Answer 29

True

Question 30

Bottom blowdown valves are used when dumping the boiler

Answer 30

True

Question 31

A fusible plug is the last warning the operator has of a dangerous low water condition in the boiler

Answer 31

True

Question 32

The core of the fusible plug melts at approximately 450 F

Answer 32

True

Question 33

The boiler vent should be open when filling the boiler with water

Answer 33

True

Question 34

A burner should always start in high fire to ensure enough fuel for ignition

Answer 34

False

Question 35

The_____is the most importan valve on a boiler

Answer 35

Safety valve

Question 36

The MAWP on a low pressure boiler is ____psi

Answer 36

15 psi

Question 37

Total force on a safty valve is equel to _____

Answer 37

Area times pressure

Question 38

The ASME code states that boiler with over _____squere feet of heating surface must have two or more safty valves

Answer 38

500 square feet

Question 39

The area of a safety valve 4" in diameter is_____square inches

Answer 39

12.5664

Question 40

The only valve permitted between the safety valve and the boiler is?

Answer 40

None. No valve is permitted

Question 41

The range of the pressure gauge should be____times the MAWP of the boiler

Answer 41

1 1/2 to 2

Question 42

In some states_____safety valves are permitted on steam boiler

Answer 42

Spring-loaded pop-off

Question 43

The total force on a safety valve 2 1/2" in diameter with a steam pressure of 15 psi is_____

Answer 43

73.63125

Question 44

The steam pressure gauge on the boiler is calibrated to read_____

Answer 44

Pounds per square inch

Question 45

Steam is prevented from entering the bourdon tube of the pressure by a

Answer 45

Siphon

Question 46

A_____pressure gauge can read either vacuum or pressure

Answer 46

Compound

Question 47

Vacuum is pressure_____pressure

Answer 47

Below atmospheric

Question 48

Safety valves are designed to popopen and stay open untel there is_____psi drop in pressure

Answer 48

2 to 4

Question 49

The water column is located at the NOWL of a low pressure steam boiler, so the lowest visible part of the gauge glass is_____above the highest heating surface

Answer 49

One inch

Question 50

Blowback is the_____in the boiler after the safety valve has opened

Answer 50

Drop in pressure

Question 51

Impurities that build up on the surface of the water in the boiler prevents_____from breaking though the surface of the water

Answer 51

Steam

Question 52

To prevent a vacuum from forming when taking the boiler off-line, the____must be open when pressure is still on the boiler

Answer 52

Boiler vent

Question 53

The operating range of the boiler is control by the______

Answer 53

Pressure control

Question 54

The______regulates the high and low fire of the boiler

Answer 54

Modulating pressure control

Question 55

The best time to blow down a boiler to remove sludge and sediment is when the boiler is under a____load

Answer 55

Light

Question 56

According to the ASME code, a try lever test on safety valves should be performed every_____ the boiler is in operation

Answer 56

30 days

Question 57

The capacity of a safety valve is measured by the amount of steam that can be discharged per_____

Answer 57

Hour

Question 58

The safety calve on a low pressure boiler is designed to open when pressure in the boiler exceeds____

Answer 58

The safety valve setting

Question 59

After the total force of the steam has lifted the safety valve off its seat, steam enters the______

Answer 59

Huddling chamber

Question 60

_______causes false water level readings in the gauge glass

Answer 60

Foaming

Question 61

On an additive pressure control,_____pressure plus_____pressure equels_____pressure

Answer 61

Cut-in, differential, cut-out