Pipefitter Star Exam ALL 900 QUESTIONS AND CORRECT ANSWERS LATEST UPDATE THIS YEAR

Page 1 of 138




Pipefitter Star Exam ALL 900 QUESTIONS AND
CORRECT ANSWERS LATEST UPDATE THIS
YEAR
QUESTION: What is the maximum recommended service temperature when a brazed joint is

used? - ANSWER-350 degrees F




QUESTION: Poor alignment of tube joints will cause: - ANSWER-spacing difference between

tubes and fittings




QUESTION: After fittings and tubes are cleaned and fluxed they should be assembled and

soldered: - ANSWER-as soon as possible




QUESTION: Name three basic hitches which can be used for lifting with a sling - ANSWER-

Straight, Choker, Basket




QUESTION: Which hitch can support the most weight? - ANSWER-Basket hitch




1

, Page 2 of 138



QUESTION: Why should the angle between the leg of a sling and the load never be less than 30

degrees? - ANSWER-More stress loads are applied on slings.




QUESTION: What is the weakest part of a chain hoist? - ANSWER-Lower hook




QUESTION: An oxyacetylene flame has a peak temperature of approximately: - ANSWER-6300°F




QUESTION: What is the purpose of slightly opening/cracking a gas cylinder valve before

installing a gas regulator? - ANSWER-clear debris


Q;What causes 90% of all construction injuries and deaths and are used to help OSHA

inspectors improve their effectiveness? - ANSWER-Focus Hazards




QUESTION: What is the minimum safe working distance for overhead power lines? - ANSWER-

10 feet




QUESTION: What is the standard procedure used to safely de-energize equipment on circuits

before they are worked on? - ANSWER-Lockout/Tagout



2

, Page 3 of 138




QUESTION: Which of the following is not true about Material Safety Data Sheets? - ANSWER-

They can be written in any language




QUESTION: What are the four focus inspections OSHA compliance officers look for? - ANSWER-

Fall Hazards, Electrical Hazards, Caught in, Struck by




QUESTION: The sizes of pipe are identified by the measurement called the: - ANSWER-Nominal

pipe size NPS




QUESTION: Steel pipe is supplied with the following end finish (es): - ANSWER-PESC, T & C TBE


(All of the above)




QUESTION: What is a typical type of welded pipe joints? - ANSWER-Butt-welded, Socket-

welded, Slip-on Flanged (All of the above)




3

, Page 4 of 138



QUESTION: List the four principle functions of valves. - ANSWER-Start/Stop, Regulate/Throttle,

Relief, Reduce




QUESTION: Regulating or throttling flow is done with a: - ANSWER-Both B and C, (globe and

gate valve)




QUESTION: Name the two basic types of check valves. - ANSWER-Lift and Swing




QUESTION: The most common hanger used in piping systems is the: - ANSWER-Clevis




QUESTION: Never expose any part of a compressed gas cylinder to temperatures above: -

ANSWER-125°F




QUESTION: The four types of copper tube joints are soldered, brazed, flared and _____? -

ANSWER-compression




4