PIPEFITTER STAR EXAM ALL 500 QUESTIONS AND
CORRECT DETAILED ANSWERS LATEST UPDATE THIS
YEAR - JUST RELEASED
What causes 90% of all construction injuries and deaths and are used to help OSHA inspectors
improve their effectiveness? --answer--:Focus Hazards
Underground water service and gas service lines can be installed using ________ plastic piping
materials. --answer--:ABS
An elbow, often called an ell, makes an angle turn in piping. --answer--:t
The stem screw of a/an rising stem with outside screw and yoke (O.S. & Y.) valve remains
outside of the valve body whether the valve is opened or closed. --answer--:t
Schedule _______ PVC, CPVC and PVCSDR pipe should not be threaded. --answer--:40
PVC and CPVC piping materials can be joined by solvent cementing. --answer--:t
A safety valve is an automatic pressure actuated relieving device for use as a relief valve
depending on application. --answer--:t
Gate valves should be used as flow valves, either fully opened or fully closed. --answer--:f
,The factors on which gasket performance depends: temperature, pressure, media, joint design,
proper bolt load, surface finish. --answer--:t
Line couplings are slightly longer than merchant couplings. --answer--:t
Pipe used in _______-welding does not require beveling. --answer--:socket
Push-on joint or mechanical joint fittings cannot be used with a push-on joint pipe. --answer--:f
Wooden or steel piles may be required where pipe is laid in very soft soil or fill. --answer--:t
In a non-rising stem valve the stem stays stationary and the disc rides up on the stem. --answer-
-:t
The screw-in bonnet is restricted to low pressure and moderate temperature service. --answer--
:f
Joint fusion on Fuseal pipe can be accomplished using an automatically controlled power unit. --
answer--:f
Safety simply means freedom from danger or hazards. Safety on the job, like safety anywhere
else, doesn't just happen; it's the result of individual effort. --answer--:t
Exposure to asbestos can be prevented by substituting a product that does not contain
asbestos. --answer--:t
Wrenches should be pushed rather than pulled to minimize the chance of them slipping off the
work. --answer--:f
,The three ways systemic poisons can enter the human body are inhalation, absoption and
ingestion. --answer--:t
Screwdriver tips can be filed in order to remove nicks or square ends to proper shape. --answer-
-:t
Organic compounds may cause poisoning by direct contact with the skin.
True --answer--:t
Choose the best definition of-ionizing radiation. --answer--:Refers to particles and waves
transmitted by moving at or near the speed of light. These particles and waves come from the
breakup of radioactive elements in their process of becoming more stable, called radioactive
decay. When these particles or waves strike atoms or molecules they tear them apart leaving
charged particles or ions.
The MSDS poster informs employees of their rights and responsibilities under the Act. --answer-
-:f
Respirators should be used only if hazards cannot be safely controlled in other ways. --answer--
:t
It is recommended that before you connect to a cylinder valve outlet, "crack" the valve for an
instant to clear the opening of dust or dirt particles. --answer--:t
The next-to-last digit indicates the position of the weld. --answer--:t
Oxyacetylene welding is a gas-welding process where coalescence is produced by heating with a
gas flame. --answer--:t
, A flashback is the momentary recession of the flame into the torch tip followed by immediate
reappearance or complete extinguishment of the flame. --answer--:f
Confined spaces shall be tested for toxic or flammable gases, dusts, and vapors, and
foradequate or excess oxygen before entering and during occupancy. --answer--:t
A competent journeyworker is one who knows only the technical aspects of the piping trades. --
answer--:f
A work clamp fastened to the work breaks the welding circuit. --answer--:f
Never open the cylinder valve when standing to one side of the cylinder , away from welding or
other sources of ignition. --answer--:f
Cables in need of repair may be used, but repaired as soon as possible. --answer--:f
A small drop of oil or grease inside an oxygen valve or regulator can cause an explosion. --
answer--:t
Two good reasons to wear ear muffs or plugs is to keep flying sparks or metal out of your ears;
and to prevent hearing loss as a result of working around noisy arc welding equipment, power
sources, and processes. --answer--:t
Flow control valves are installed in hydronic systems to create gravity circulation. --answer--:f
Adhesive used on FRP pipe is very wispy (thin) when it is cool. --answer--:f
CORRECT DETAILED ANSWERS LATEST UPDATE THIS
YEAR - JUST RELEASED
What causes 90% of all construction injuries and deaths and are used to help OSHA inspectors
improve their effectiveness? --answer--:Focus Hazards
Underground water service and gas service lines can be installed using ________ plastic piping
materials. --answer--:ABS
An elbow, often called an ell, makes an angle turn in piping. --answer--:t
The stem screw of a/an rising stem with outside screw and yoke (O.S. & Y.) valve remains
outside of the valve body whether the valve is opened or closed. --answer--:t
Schedule _______ PVC, CPVC and PVCSDR pipe should not be threaded. --answer--:40
PVC and CPVC piping materials can be joined by solvent cementing. --answer--:t
A safety valve is an automatic pressure actuated relieving device for use as a relief valve
depending on application. --answer--:t
Gate valves should be used as flow valves, either fully opened or fully closed. --answer--:f
,The factors on which gasket performance depends: temperature, pressure, media, joint design,
proper bolt load, surface finish. --answer--:t
Line couplings are slightly longer than merchant couplings. --answer--:t
Pipe used in _______-welding does not require beveling. --answer--:socket
Push-on joint or mechanical joint fittings cannot be used with a push-on joint pipe. --answer--:f
Wooden or steel piles may be required where pipe is laid in very soft soil or fill. --answer--:t
In a non-rising stem valve the stem stays stationary and the disc rides up on the stem. --answer-
-:t
The screw-in bonnet is restricted to low pressure and moderate temperature service. --answer--
:f
Joint fusion on Fuseal pipe can be accomplished using an automatically controlled power unit. --
answer--:f
Safety simply means freedom from danger or hazards. Safety on the job, like safety anywhere
else, doesn't just happen; it's the result of individual effort. --answer--:t
Exposure to asbestos can be prevented by substituting a product that does not contain
asbestos. --answer--:t
Wrenches should be pushed rather than pulled to minimize the chance of them slipping off the
work. --answer--:f
,The three ways systemic poisons can enter the human body are inhalation, absoption and
ingestion. --answer--:t
Screwdriver tips can be filed in order to remove nicks or square ends to proper shape. --answer-
-:t
Organic compounds may cause poisoning by direct contact with the skin.
True --answer--:t
Choose the best definition of-ionizing radiation. --answer--:Refers to particles and waves
transmitted by moving at or near the speed of light. These particles and waves come from the
breakup of radioactive elements in their process of becoming more stable, called radioactive
decay. When these particles or waves strike atoms or molecules they tear them apart leaving
charged particles or ions.
The MSDS poster informs employees of their rights and responsibilities under the Act. --answer-
-:f
Respirators should be used only if hazards cannot be safely controlled in other ways. --answer--
:t
It is recommended that before you connect to a cylinder valve outlet, "crack" the valve for an
instant to clear the opening of dust or dirt particles. --answer--:t
The next-to-last digit indicates the position of the weld. --answer--:t
Oxyacetylene welding is a gas-welding process where coalescence is produced by heating with a
gas flame. --answer--:t
, A flashback is the momentary recession of the flame into the torch tip followed by immediate
reappearance or complete extinguishment of the flame. --answer--:f
Confined spaces shall be tested for toxic or flammable gases, dusts, and vapors, and
foradequate or excess oxygen before entering and during occupancy. --answer--:t
A competent journeyworker is one who knows only the technical aspects of the piping trades. --
answer--:f
A work clamp fastened to the work breaks the welding circuit. --answer--:f
Never open the cylinder valve when standing to one side of the cylinder , away from welding or
other sources of ignition. --answer--:f
Cables in need of repair may be used, but repaired as soon as possible. --answer--:f
A small drop of oil or grease inside an oxygen valve or regulator can cause an explosion. --
answer--:t
Two good reasons to wear ear muffs or plugs is to keep flying sparks or metal out of your ears;
and to prevent hearing loss as a result of working around noisy arc welding equipment, power
sources, and processes. --answer--:t
Flow control valves are installed in hydronic systems to create gravity circulation. --answer--:f
Adhesive used on FRP pipe is very wispy (thin) when it is cool. --answer--:f
