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129 Cards in this Set
- Front
- Back
what is class "M" piping? |
designated as lethal service piping |
|
what is class "D" piping? |
designated as nontoxic, nonflammable |
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is a friction lighter a striker? |
true |
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what type of fitting is installed at every right angle piping? |
crosses |
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the included angle of a center punch is ? |
60 degrees |
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what is considered to be a place of "public assembly "? |
college campus, city hall, etc. |
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what is the minimum size pipe allowed on a control loop on a steam boiler? |
1" |
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inspection of category M piping is not required by a state inspector, if the authorized owner representative performs an inspection? true or false? |
true |
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the chief inspector may enter all buildings at reasonable hours for inspection , except : |
private residences |
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when there are two blowdown valves they will be which type? |
1 quick and 1 slow |
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which of the following is an example of vessels exempt from annual inspection? |
vessels in storage, those of a federal agency, and hydronic in a private residence |
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the place on an isometric drawing which shows components being used is called? |
bill of materials |
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brazing is covered under ASME section ? |
IX |
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when cutting pipe with a heat number, you transfer the number? |
before cutting |
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the letter F, in A53F pipe stands for? |
furnace welded |
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repair permits are issued to the ________? |
licensed contractor doing the work |
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adding a pipe branch by welding is allowed if ? |
if need for reinforcements has been calculated |
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oxyacetylene bottles may be transported by ANSI approved cylinder sling true or false? |
true |
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under B31.5, pipe larger than what size is covered? |
2" |
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when welding stainless steel, what are the potentially dangerous oxides that are produced? |
nickel and chromium |
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which extingushing agent is most commonly used in a class A fires? |
water |
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there is a 1,000 dollar fine for anyone working without this license, on pressure piping? true or false |
true |
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pool boilers are exempt if the following conditions exist. |
the burner is wired in series with the pump |
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what class of fire is burning magnesium? |
class D |
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refrigerant or air conditioning pressure veseles containing _________ cubic feet or less of non corrosive gases are exempt . |
3 cubic feet |
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pressure relief devices must be approved by what agency? |
ASME |
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when hydro testing NBEP ( non-boiler external piping) it must be off from the boiler and tested at how many times the operating pressure? |
1 1/2 times |
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when securing wire rope, the clips are applied? |
saddle on the live end |
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a stop valve cannot be installed between the boiler and the relief valve? true or false? |
true |
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when the weld symbol is on the top of the welding symbol ( arrow) it means you are to. |
weld on the other side |
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what type of stuffing box is used on high pressure/ temperature valves? |
lantern type |
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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? |
true |
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under B31.5, A1 and B1 refrigerant is classified by its toxicity and flammability ?
true or false? |
true |
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each automatically fired high pressured steam boilers shall have how many automatic low water fuel cutoff devices? |
2 |
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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? |
true |
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the threads on oxygen and acetylene hoses are the same true or false? |
false |
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which code section covers power piping ? |
B 31.1 |
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how far away from oxygen is acetylene to be stored? |
20 feet |
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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 |
D- none of the above they are all exempt |
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what is the "heat affected zones" ? |
the area adjacent to the weld? |
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how many total hours of welding on pressure piping must you have to apply for a class B license? |
2,000 hours |
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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? |
true |
|
what method of testing is used on a root pass? A- PT liquid penetrant B- MT magnetic partical C- neither d- both |
D- both |
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how many gallons in a cubic foot? |
7.48 gallons |
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what is the minimum and maximum % of operating pressure used to test pipe covered under B31.5? |
minimum 110% maximum 130% |
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to determine the pressure at the bottom of a water column , you multiply the height by ? |
.434 |
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accidents have to be reported to the building codes devision within how many hours? |
24 hours |
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when unbolting a flange in an isolated system, you must ? |
unbolt the side away from you |
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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? |
true |
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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? |
true |
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which code section covers processed piping ? |
B31.3 |
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which code section covers refrigeration? |
B31.5 |
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which code section covers building service piping? Operating at pressures up to 150 psi. |
B31.9 |
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hangers for pipe sizes larger than 21/2 inch must be adjustable? t or f ? |
true |
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the cleanup on cast iron boilers must be at least 1 1/2 inch ? t or f ? |
false |
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boilers may be buried underground? true or false ? |
false |
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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. |
safety valve |
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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. |
relief valve |
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an automatic pressure relieving device suitable for use either as a safety valve or relief valve, depending on application. |
safety relief valve |
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each pressure vessel installed in oregon must be equipped with an ASME approved safety relieving device set to relieve at or below the? |
maximum allowable working pressure |
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can you put a safety on a system of pressure vessels t or f ? |
true |
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can you put a shut off valve between the pressure vessel and the safety? t or f |
false |
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can the inlet to a safety valve be reduced as to its cross sectional area? t or f? |
false |
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for a low pressure boiler what is the highest amount of psig that is allowed ? |
15 psig |
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what is the intended purpose of the discharge piping on a safety relief valve? |
to discharge over pressurization of the relief valve to a safe point of discharge. |
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for high pressure boilers how many safety relief valves should be put on a vessel with more than 1,100 kw of power input? |
2 |
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what is the BTU requirement for boilers that have to meet ASME CSD-1 codes? |
112,500,000 |
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low pressure boilers operate at 15 psi or less steam or 180 psig and 270 degree Fahrenheit water? t or f? |
false |
|
there are three kinds of steam traps, name them |
F and T ( float and thermostatic), thermo disc, bucket and inverted bucket trap. |
|
what is the purpose of a steam trap? |
to release condensate, non condensables, to allow air to go through , and keep steam in. |
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the dead weight of the pipe, fittings, valves, pipes contents and occasional loads like ice and snow are all components of figuring out ? |
pipe hanger loads |
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stringer beads are deposited without oscillation and are parallel t or f ? |
true |
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slag inclusions must always be removed t or f? |
false |
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if toxic fumes will be produced when welding galvanized pipe you should use ? |
you should use an air removal machine |
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you could use pvc for building services under B31.9 t or f ? |
true |
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on return piping you must provide a method to clean at or near the boiler t or f? |
true |
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for piping NPS 2 1/2 inch and larger, you must use adjustable hangers t or f ? |
true |
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in a globe valve with the flow going in the bottom has the pressure against the disc t or f ? |
true |
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the governor appoints the boiler board t or f ? |
true |
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when there are two blowdown valves they will be of which type? |
one quick and one slow |
|
who appoints the chief inspector? |
the director of the department of consumer and business services |
|
on an isometric drawing, the line with an arrow on each end is the |
dimension line |
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a 20 foot length of 4" scheduled 40 pipe weighs how much empty and how much full of water? |
empty 245 lb full 350 lbs |
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in E11018, the 110 stands for ? |
tinsel strength |
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how many threads should there be on a 2" pipe? |
11 1/2 threads |
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repair permits are issued to ? |
the licensed contractor doing the work |
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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 |
5/16 " tabel 31.1 127.42 |
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burning magnesium is what class fire ? |
class D |
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when socket welding you must pull the pipe out of the fitting ? |
1/16" |
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what fuels a class C fire ? |
burning electrical |
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which extinguishing agent can be used on electrical fires? |
CO2 |
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pipe used under ASME code B31.9 can be used if it has been cleaned and inspected ? t or f ? |
true |
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if the welder has been certified on 6" pipe in the 6G position he can weld on 1" water wall tube? |
true |
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pool boilers are exempt if the following conditions exist |
the burner is wired in series with the pump |
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ASME B31.9 covers piping equal to 150 psi or less? |
true steam or condensate false liquids 350 psig |
|
pressure relief devices must be approved by what agency? |
ASME |
|
you multiply the height of the water in a tank by .434 to obtain the psi? |
true |
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the difference in volume between 2" and a 4" pipe is how many times |
4 times more volume |
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a stop valve can not be installed between the boiler and the relief valve? t or f ? |
true |
|
1 watt is approximately? |
3.413 but/h |
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1000 btu/h is approximately? |
293 W |
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1 horsepower is approximately? |
2,544 btu/h |
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A btu is also the energy required to raise one pound of water by __________? Degree Fahrenheit |
One |
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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? |
True |
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Shut off valves are not permitted on either the inlet or discharge of safety relief valve's true or false? |
True |
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The discharge from the safety relief valve must be directed to a safe location true or false? |
True |
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Safety relief valves can only be disassembled and set by a NBIC authorized service center. true or false? |
True |
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Positive shut off valves include? |
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 |
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What does W – O – G stand for on a valve? |
Water oil and gas |
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Oxygen storage tanks must be installed on a? |
Non-oxidizing surface. |
|
A simple oily rag exposed to oxygen can ignite. True or false? |
True |
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A class A fire extinguisher is designed to be used upon? |
Wood, saw dust, paper, rags. |
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A class B fire extinguisher is designed to be used upon? |
Flammable liquids, oils, tars and gases. |
|
Class C fire extinguishers are designed to be used upon? |
Electrical equipment |
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Class D fire extinguishers are designed to be used upon? |
Combustible, self oxidizing metals. |
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Water hoses should only be used on class _____ fires? |
Class A |
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Section 1 power boilers shall be stamped with_______ code stamp. |
A, M, E, or "S" code stamp |
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Section IV hot water heating boilers and hot water supply boilers shall be stamped with? |
H or HLW code stamp |
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Unfired pressure vessels shall be stamped with? |
U or UM code stamp |
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Welded boiler external piping over NSP 2" must be stamped with? |
S or PP code stamp |
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ASME CSD–1, Controls and safety devices for automatically fired boilers applies to all boilers under? |
12,500,000 BTU and under |
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National fire protection Association (NFPA) requirements apply to boilers? |
12,500,000 Btu and over. |
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Control devices are required to be tested and certified by the underwriter's laboratory (UL) true or false? |
True |
|
 Installation of boilers in newly constructed boiler rooms shall have a minimum side clearance of? |
36 inch on each side and adequate room for all removal and installation of boiler tubes |
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Boilers in battery (connected to each other) shall have a minimum of ______Clearance between the boilers? |
Minimum of 48 inch clearance between the boilers |
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Boilers with bottom openings shall have at least______" bottom Clarence |
12 inch bottom clearance |
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Boiler rooms shall provide ______ means of exit |
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 |
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For multiple boiler installation steam boilers shall be installed such that all boilers have the same low-water operation level. True or false? |
True |
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For multiple boiler installation a stop valve shall be installed in each supply and return connections for each boiler. True or false? |
True |