ASME SECTION 1 EXAM QUESTIONS WITH
VERIFIED ANSWERS
What is the ASME? What does Section 1 of the ASME Code cover? - ANSWER
American Society of Mechanical Engineers. The people who create the code books
are the ones who approve everything related to construction and design.
This code specifies the requirements for the building of power boilers, electric
boilers, micro boilers, and high-temperature water boilers for fixed use, as well as
power boilers for locomotive, portable, and traction duty.
What is the jurisdictional scope of Section 1? - ANSWER Section 1 applies to both
the boiler itself and the boiler's external plumbing.
What is a proper boiler? - ANSWER superheaters, economisers, and other pressure
parts connected directly to the boiler without intervening valves are regarded as
part of the boiler itself and must follow section 1 rules.
(Downcomers, Risers, Tubes, etc.)
What is boiler exterior piping? - ANSWER Boiler exterior pipe is the piping that
begins where the boiler proper ends and extends to the valve of valves specified in
Section 1.
the first circumferential joint for welded end connections; the face of the first
flange in a bolted flange connection; and the first threaded joint in that sort of
connection
What is a power boiler? - ANSWER A pressure vessel built under Section 1 in
which steam is generated for use outside the boiler at a pressure greater than 15
PSIG through the direct application of heat.
What are the valve and piping requirements for boilers with a maximum allowable
working pressure of more than 125 psi? - ANSWER: You must have extra-heavy
piping (schedule 80) and extra-heavy valves and/or cock (250 pounds).
,What is the lowest visible portion of the gauge glass? - ANSWER at least 2 inches
over the minimum allowable water level. Except for HRT boilers. 3 inches over the
top row of tubes.
What should a pressure gauge's range be? - ANSWER: twice the safety valve set
point, but no less than one and a half times. (hydrostatic tests)
How many water level indicators should a boiler have? - ANSWER: Each boiler
should have at least one level indicator.
With few exceptions, boilers with pressures greater than 400 PSI must have two
gauge glasses.(may be connected to a single water column)
Over 900 PSI, two independent remote level indicators could replace one gauge
glass.
Which types of valves are used between the water column and the boiler? -
ANSWER: They must be OS&Y valves or lever type valves that show whether
they are open or closed. And they should be locked in the open position. Also, lines
leading to the water column should be connected with cross tees for inspection and
cleaning.
How frequently should flame scanners be tested? - ANSWER minimum weekly.
What kind of valves should a gauge glass be equipped with? - ANSWER Quick
closing valves allow them to be readily removed from service.
What are the specifications for a Reheater Safety Valve? - ANSWER: The reheater
safety valve(s) must be capable of releasing all of the steam that the reheater can
produce. At least 15% of the needed capacity must be placed on the reheater outlet.
, What is the minimum bearing width for a manhole gasket? - Answer: 11 sixteenths
of an inch.
What is the minimum design temperature of a tube that receives heat? - ANSWER:
700°F
What is the minimum blowdown for a safety valve? - Answer: 2% of the given
pressure.
What is the minimal diameter of a tell-tale hole in a stay bolt? - ANSWER: 3/16
inch.
What is the minimum distance between through stays and the bottom of an HRT
boiler? - ANSWER: 10 inches
What is the minimum hydrostatic test pressure for both a boiler and a tiny boiler? -
The answer for the boiler is 1.5 times the MAWP.
For a small boiler = three times MAWP.
What is the minimum number of hand holes or washout plugs in a Scotch boiler? -
The answer is 4.
What is the minimum pressure for feed pumps? - ANSWER: 3% over the highest
safety valve settings.
What is the minimum safety valve capacity for an electric boiler? - ANSWER: 3.5
lb/hr/kW.
What is the minimum size for a hand hole? - ANSWER: 2 3/4" x 3 1/2"
VERIFIED ANSWERS
What is the ASME? What does Section 1 of the ASME Code cover? - ANSWER
American Society of Mechanical Engineers. The people who create the code books
are the ones who approve everything related to construction and design.
This code specifies the requirements for the building of power boilers, electric
boilers, micro boilers, and high-temperature water boilers for fixed use, as well as
power boilers for locomotive, portable, and traction duty.
What is the jurisdictional scope of Section 1? - ANSWER Section 1 applies to both
the boiler itself and the boiler's external plumbing.
What is a proper boiler? - ANSWER superheaters, economisers, and other pressure
parts connected directly to the boiler without intervening valves are regarded as
part of the boiler itself and must follow section 1 rules.
(Downcomers, Risers, Tubes, etc.)
What is boiler exterior piping? - ANSWER Boiler exterior pipe is the piping that
begins where the boiler proper ends and extends to the valve of valves specified in
Section 1.
the first circumferential joint for welded end connections; the face of the first
flange in a bolted flange connection; and the first threaded joint in that sort of
connection
What is a power boiler? - ANSWER A pressure vessel built under Section 1 in
which steam is generated for use outside the boiler at a pressure greater than 15
PSIG through the direct application of heat.
What are the valve and piping requirements for boilers with a maximum allowable
working pressure of more than 125 psi? - ANSWER: You must have extra-heavy
piping (schedule 80) and extra-heavy valves and/or cock (250 pounds).
,What is the lowest visible portion of the gauge glass? - ANSWER at least 2 inches
over the minimum allowable water level. Except for HRT boilers. 3 inches over the
top row of tubes.
What should a pressure gauge's range be? - ANSWER: twice the safety valve set
point, but no less than one and a half times. (hydrostatic tests)
How many water level indicators should a boiler have? - ANSWER: Each boiler
should have at least one level indicator.
With few exceptions, boilers with pressures greater than 400 PSI must have two
gauge glasses.(may be connected to a single water column)
Over 900 PSI, two independent remote level indicators could replace one gauge
glass.
Which types of valves are used between the water column and the boiler? -
ANSWER: They must be OS&Y valves or lever type valves that show whether
they are open or closed. And they should be locked in the open position. Also, lines
leading to the water column should be connected with cross tees for inspection and
cleaning.
How frequently should flame scanners be tested? - ANSWER minimum weekly.
What kind of valves should a gauge glass be equipped with? - ANSWER Quick
closing valves allow them to be readily removed from service.
What are the specifications for a Reheater Safety Valve? - ANSWER: The reheater
safety valve(s) must be capable of releasing all of the steam that the reheater can
produce. At least 15% of the needed capacity must be placed on the reheater outlet.
, What is the minimum bearing width for a manhole gasket? - Answer: 11 sixteenths
of an inch.
What is the minimum design temperature of a tube that receives heat? - ANSWER:
700°F
What is the minimum blowdown for a safety valve? - Answer: 2% of the given
pressure.
What is the minimal diameter of a tell-tale hole in a stay bolt? - ANSWER: 3/16
inch.
What is the minimum distance between through stays and the bottom of an HRT
boiler? - ANSWER: 10 inches
What is the minimum hydrostatic test pressure for both a boiler and a tiny boiler? -
The answer for the boiler is 1.5 times the MAWP.
For a small boiler = three times MAWP.
What is the minimum number of hand holes or washout plugs in a Scotch boiler? -
The answer is 4.
What is the minimum pressure for feed pumps? - ANSWER: 3% over the highest
safety valve settings.
What is the minimum safety valve capacity for an electric boiler? - ANSWER: 3.5
lb/hr/kW.
What is the minimum size for a hand hole? - ANSWER: 2 3/4" x 3 1/2"
