Class 5

Front 1

what is class "M" piping?

Back 1

designated as lethal service piping

Front 2

what is class "D" piping?

Back 2

designated as nontoxic, nonflammable

Front 3

is a friction lighter a striker?

Back 3

true

Front 4

what type of fitting is installed at every right angle piping?

Back 4

crosses

Front 5

the included angle of a center punch is ?

Back 5

60 degrees

Front 6

what is considered to be a place of "public

assembly "?

Back 6

college campus, city hall, etc.

Front 7

what is the minimum size pipe allowed on a control loop on a steam boiler?

Back 7

1"

Front 8

inspection of category M piping is not required by a state inspector, if the authorized owner representative performs an inspection? true or false?

Back 8

true

Front 9

the chief inspector may enter all buildings at reasonable hours for inspection , except :

Back 9

private residences

Front 10

when there are two blowdown valves they will be which type?

Back 10

1 quick and 1 slow

Front 11

which of the following is an example of vessels exempt from annual inspection?

Back 11

vessels in storage, those of a federal agency, and hydronic in a private residence

Front 12

the place on an isometric drawing which shows components being used is called?

Back 12

bill of materials

Front 13

brazing is covered under ASME section ?

Back 13

IX

Front 14

when cutting pipe with a heat number, you transfer the number?

Back 14

before cutting

Front 15

the letter F, in A53F pipe stands for?

Back 15

furnace welded

Front 16

repair permits are issued to the ________?

Back 16

licensed contractor doing the work

Front 17

adding a pipe branch by welding is allowed if ?

Back 17

if need for reinforcements has been calculated

Front 18

oxyacetylene bottles may be transported by ANSI approved cylinder sling

true or false?

Back 18

true

Front 19

under B31.5, pipe larger than what size is covered?

Back 19

2"

Front 20

when welding stainless steel, what are the potentially dangerous oxides that are produced?

Back 20

nickel and chromium

Front 21

which extingushing agent is most commonly used in a class A fires?

Back 21

water

Front 22

there is a 1,000 dollar fine for anyone working without this license, on pressure piping?

true or false

Back 22

true

Front 23

pool boilers are exempt if the following conditions exist.

Back 23

the burner is wired in series with the pump

Front 24

what class of fire is burning magnesium?

Back 24

class D

Front 25

refrigerant or air conditioning pressure veseles containing _________ cubic feet or less of non corrosive gases are exempt .

Back 25

3 cubic feet

Front 26

pressure relief devices must be approved by what agency?

Back 26

ASME

Front 27

when hydro testing NBEP ( non-boiler external piping) it must be off from the boiler and tested at how many times the operating pressure?

Back 27

1 1/2 times

Front 28

when securing wire rope, the clips are applied?

Back 28

saddle on the live end

Front 29

a stop valve cannot be installed between the boiler and the relief valve?

true or false?

Back 29

true

Front 30

when the weld symbol is on the top of the welding symbol ( arrow) it means you are to.

Back 30

weld on the other side

Front 31

what type of stuffing box is used on high pressure/ temperature valves?

Back 31

lantern type

Front 32

is a person holding a class 1V or class V license in need to supervise a person with a class V1 license

true or false?

Back 32

true

Front 33

under B31.5, A1 and B1 refrigerant is classified by its toxicity and flammability ?

true or false?

Back 33

true

Front 34

each automatically fired high pressured steam boilers shall have how many automatic low water fuel cutoff devices?

Back 34

2

Front 35

your employer will be fined an amount equal to or grater than your fine for each employee performing work covered under Oregon law that requires a boiler license

true or false?

Back 35

true

Front 36

the threads on oxygen and acetylene hoses are the same

true or false?

Back 36

false

Front 37

which code section covers power piping ?

Back 37

B 31.1

Front 38

how far away from oxygen is acetylene to be stored?

Back 38

20 feet

Front 39

air tanks located on farms used solely for agriculture are exempt if

A- they are <3 cubic feet

B- they are <1.5 cubic feet

C- they are equipped with an ASME approved relief valve

d- none of the above, they are all exempt

Back 39

D- none of the above they are all exempt

Front 40

what is the "heat affected zones" ?

Back 40

the area adjacent to the weld?

Front 41

how many total hours of welding on pressure piping must you have to apply for a class B license?

Back 41

2,000 hours

Front 42

journeyman plumbers are exempt for having a class V license to install or replace, by non welded means, a potable water heater, not used for space heating up to 180 gallons, 210 degrees, 150 psi and 75,000 btu

true or false?

Back 42

true

Front 43

what method of testing is used on a root pass?

A- PT liquid penetrant

B- MT magnetic partical

C- neither

d- both

Back 43

D- both

Front 44

how many gallons in a cubic foot?

Back 44

7.48 gallons

Front 45

what is the minimum and maximum % of operating pressure used to test pipe covered under B31.5?

Back 45

minimum 110%

maximum 130%

Front 46

to determine the pressure at the bottom of a water column , you multiply the height by ?

Back 46

.434

Front 47

accidents have to be reported to the building codes devision within how many hours?

Back 47

24 hours

Front 48

when unbolting a flange in an isolated system, you must ?

Back 48

unbolt the side away from you

Front 49

the boiler inspector report outlining the work to be performed must be posted on or within the sight of the boiler to be worked upon?

true or false?

Back 49

true

Front 50

any person holding a license under ORS 480.630 is required by law to report an accident, or major failure of a vessel or related appurtenance to the building codes devision

true or false?

Back 50

true

Front 51

which code section covers processed piping ?

Back 51

B31.3

Front 52

which code section covers refrigeration?

Back 52

B31.5

Front 53

which code section covers building service piping?

Operating at pressures up to 150 psi.

Back 53

B31.9

Front 54

hangers for pipe sizes larger than 21/2 inch must be adjustable? t or f ?

Back 54

true

Front 55

the cleanup on cast iron boilers must be at least 1 1/2 inch ? t or f ?

Back 55

false

Front 56

boilers may be buried underground? true or false ?

Back 56

false

Front 57

an automatic pressure relief device actuated by the static pressure upstream of the valve and characterized by full opening pop action. It is used for gas and vapor services.

Back 57

safety valve

Front 58

an automatic pressure relieving device actuated by the static pressure upstream of the valve which opens further with the increase in pressure over the opening pressure. It is used primarily for fluid service.

Back 58

relief valve

Front 59

an automatic pressure relieving device suitable for use either as a safety valve or relief valve, depending on application.

Back 59

safety relief valve

Front 60

each pressure vessel installed in oregon must be equipped with an ASME approved safety relieving device set to relieve at or below the?

Back 60

maximum allowable working pressure

Front 61

can you put a safety on a system of pressure vessels t or f ?

Back 61

true

Front 62

can you put a shut off valve between the pressure vessel and the safety? t or f

Back 62

false

Front 63

can the inlet to a safety valve be reduced as to its cross sectional area? t or f?

Back 63

false

Front 64

for a low pressure boiler what is the highest amount of psig that is allowed ?

Back 64

15 psig

Front 65

what is the intended purpose of the discharge piping on a safety relief valve?

Back 65

to discharge over pressurization of the relief valve to a safe point of discharge.

Front 66

for high pressure boilers how many safety relief valves should be put on a vessel with more than 1,100 kw of power input?

Back 66

2

Front 67

what is the BTU requirement for boilers that have to meet ASME CSD-1 codes?

Back 67

112,500,000

Front 68

low pressure boilers operate at 15 psi or less steam or 180 psig and 270 degree Fahrenheit water? t or f?

Back 68

false

Front 69

there are three kinds of steam traps, name them

Back 69

F and T ( float and thermostatic), thermo disc, bucket and inverted bucket trap.

Front 70

what is the purpose of a steam trap?

Back 70

to release condensate, non condensables, to allow air to go through , and keep steam in.

Front 71

the dead weight of the pipe, fittings, valves, pipes contents and occasional loads like ice and snow are all components of figuring out ?

Back 71

pipe hanger loads

Front 72

stringer beads are deposited without oscillation and are parallel t or f ?

Back 72

true

Front 73

slag inclusions must always be removed t or f?

Back 73

false

Front 74

if toxic fumes will be produced when welding galvanized pipe you should use ?

Back 74

you should use an air removal machine

Front 75

you could use pvc for building services under B31.9 t or f ?

Back 75

true

Front 76

on return piping you must provide a method to clean at or near the boiler t or f?

Back 76

true

Front 77

for piping NPS 2 1/2 inch and larger, you must use adjustable hangers t or f ?

Back 77

true

Front 78

in a globe valve with the flow going in the bottom has the pressure against the disc t or f ?

Back 78

true

Front 79

the governor appoints the boiler board t or f ?

Back 79

true

Front 80

when there are two blowdown valves they will be of which type?

Back 80

one quick and one slow

Front 81

who appoints the chief inspector?

Back 81

the director of the department of consumer and business services

Front 82

on an isometric drawing, the line with an arrow on each end is the

Back 82

dimension line

Front 83

a 20 foot length of 4" scheduled 40 pipe weighs how much empty and how much full of water?

Back 83

empty 245 lb

full 350 lbs

Front 84

in E11018, the 110 stands for ?

Back 84

tinsel strength

Front 85

how many threads should there be on a 2" pipe?

Back 85

11 1/2 threads

Front 86

repair permits are issued to ?

Back 86

the licensed contractor doing the work

Front 87

on base metal 3/16 of an inch to 1/2 inch from 350 degrees 750 degrees, the maximum amount of weld reinforcement allowed is

Back 87

5/16 "

tabel 31.1 127.42

Front 88

burning magnesium is what class fire ?

Back 88

class D

Front 89

when socket welding you must pull the pipe out of the fitting ?

Back 89

1/16"

Front 90

what fuels a class C fire ?

Back 90

burning electrical

Front 91

which extinguishing agent can be used on electrical fires?

Back 91

CO2

Front 92

pipe used under ASME code B31.9 can be used if it has been cleaned and inspected ? t or f ?

Back 92

true

Front 93

if the welder has been certified on 6" pipe in the 6G position he can weld on 1" water wall tube?

Back 93

true

Front 94

pool boilers are exempt if the following conditions exist

Back 94

the burner is wired in series with the pump

Front 95

ASME B31.9 covers piping equal to 150 psi or less?

Back 95

true

steam or condensate

false

liquids 350 psig

Front 96

pressure relief devices must be approved by what agency?

Back 96

ASME

Front 97

you multiply the height of the water in a tank by

.434 to obtain the psi?

Back 97

true

Front 98

the difference in volume between 2" and a 4" pipe is how many times

Back 98

4 times more volume

Front 99

a stop valve can not be installed between the boiler and the relief valve? t or f ?

Back 99

true

Front 100

1 watt is approximately?

Back 100

3.413 but/h

Front 101

1000 btu/h is approximately?

Back 101

293 W

Front 102

1 horsepower is approximately?

Back 102

2,544 btu/h

Front 103

A btu is also the energy required to raise one pound of water by __________? Degree Fahrenheit

Back 103

One

Front 104

The piping on the discharge side of a safety relief valve may not be reduced down nor routed such that the flow could be restricted by pocketing trapping liquid? True or false?

Back 104

True

Front 105

Shut off valves are not permitted on either the inlet or discharge of safety relief valve's true or false?

Back 105

True

Front 106

The discharge from the safety relief valve must be directed to a safe location true or false?

Back 106

True

Front 107

Safety relief valves can only be disassembled and set by a NBIC authorized service center. true or false?

Back 107

True

Front 108

Positive shut off valves include?

Back 108

Gate valves, ball valves, tapered cock valves and globe valves. Globe valves are directional and should be installed with the flow direction below the disc

Front 109

What does W – O – G stand for on a valve?

Back 109

Water oil and gas

Front 110

Oxygen storage tanks must be installed on a?

Back 110

Non-oxidizing surface.

Front 111

A simple oily rag exposed to oxygen can ignite. True or false?

Back 111

True

Front 112

A class A fire extinguisher is designed to be used upon?

Back 112

Wood, saw dust, paper, rags.

Front 113

A class B fire extinguisher is designed to be used upon?

Back 113

Flammable liquids, oils, tars and gases.

Front 114

Class C fire extinguishers are designed to be used upon?

Back 114

Electrical equipment

Front 115

Class D fire extinguishers are designed to be used upon?

Back 115

Combustible, self oxidizing metals.

Front 116

Water hoses should only be used on class _____ fires?

Back 116

Class A

Front 117

Section 1 power boilers shall be stamped with_______ code stamp.

Back 117

A, M, E, or "S" code stamp

Front 118

Section IV hot water heating boilers and hot water supply boilers shall be stamped with?

Back 118

H or HLW code stamp

Front 119

Unfired pressure vessels shall be stamped with?

Back 119

U or UM code stamp

Front 120

Welded boiler external piping over NSP 2" must be stamped with?

Back 120

S or PP code stamp

Front 121

ASME CSD–1, Controls and safety devices for automatically fired boilers applies to all boilers under?

Back 121

12,500,000 BTU and under

Front 122

National fire protection Association (NFPA) requirements apply to boilers?

Back 122

12,500,000 Btu and over.

Front 123

Control devices are required to be tested and certified by the underwriter's laboratory (UL) true or false?

Back 123

True

Front 124



Installation of boilers in newly constructed boiler rooms shall have a minimum side clearance of?

Back 124

36 inch on each side and adequate room for all removal and installation of boiler tubes

Front 125

Boilers in battery (connected to each other) shall have a minimum of ______Clearance between the boilers?

Back 125

Minimum of 48 inch clearance between the boilers

Front 126

Boilers with bottom openings shall have at least______" bottom Clarence

Back 126

12 inch bottom clearance

Front 127

Boiler rooms shall provide ______ means of exit

Back 127

Two means of exit when the boiler room exceeds 500 ft.² and the boilers have a capacity of 1 million BTUs an hour or greater

Front 128

For multiple boiler installation steam boilers shall be installed such that all boilers have the same low-water operation level. True or false?

Back 128

True

Front 129

For multiple boiler installation a stop valve shall be installed in each supply and return connections for each boiler. True or false?

Back 129

True