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Pipefitter NCCER Test graded A+.
Convert 1/4 to its decimal equivalent. A). B). C) 0. D) 0.5 - ANSWER B Piping that is field-routed to a pump must be supported A) Off the pump suction B) Diagonally C) Independently D) Off the pump discharge - ANSWER C What is used when lighting a cutting torch? A) Striker B) Cigarette lighter C) Match D) Any open flame - ANSWER A Where is specific information needed to install piping and associated items found? A) Reliability network B) Owner of the company C) Material Manufacturer D) Standards and Specifications - ANSWER D Damaged and broken tools should be A) Used if possible
B) Kept for backup C) Taken out of Service D) Used for minor tasks - ANSWER C What is the ID of 10'' schedule 80 piping. A) 9 3/ B) 9 5/ C) 9 9/ D) 10 1/16 - ANSWER C The two steps in making up threaded joints are the hand engagement and A) Machine makeup B) Wrench makeup C) Driver makeup - ANSWER B Which of the following actions should be taken before a hydrostatic test is performed? A) Remove pressure relief valves B) Leave control mechanisms in place C) Leave orifice flanges in place D) Remove blinds - ANSWER a A 4-inch lateral riser is to be fabricated for a 6-inch pipe. How many ordinate lines will be needed to lay out this cut? A) 32 B) 16 C) 8 D) 4 - ANSWER C
C) Before start-up of the system D) After start-up of the system - ANSWER C Chain come-alongs are PRIMARILY designed for? A) Lifting in close quarters B) Vertical lifting C) Lifting in any location D) Horizontal lifting - ANSWER B Which of the following types of copper tubing has the thickest wall A) K B) L C) M D) Acr - ANSWER A What is the MINIMUM grade of chain that may be used for rigging loads overhead? A) 5 B) 6 C) 7 D) 8 - ANSWER D At and above what norminal pipe size is the O.D. of the pipe the same as the norminal size of the pipe. A) 10'' B) 12'' C) 14'' D) 16'' - ANSWER C
Which type of field sketch has base lines that are 30 degrees to the horizontal axis? A) Orthographic B) Oblique C) P & ID D) Isometric - ANSWER D The MINIMUM number of pre-heat holes for liquefied fuel tips is A) 2 C) 6 B) 4 D) 8 - ANSWER C The first step to changing blades and bits on power tools is to A) Disassemble tool B) Disconnect the power C) Remove the guards D) Get a new blade or bit - ANSWER B What must be done to MOST socket welded valves before being welded into place? A) Close the valve completely B) Close the valve halfway C) Open the valve completely D) Cover the end of the valve - ANSWER C What is the length of pipe required to fabricate a 6''diameter schedule 40 pipe spool with one class 150# RFWN flange on one end, and one class 300# RFWN flange on the other end, with a face-to-face measurement of 18 1/2'' (assume a 1/8 welder gap) A) 10 11/ B) 10 7/ C) 12 5/
Trenches MUST be designed, excavated, and shored according to A) ASME standards C) Company standards B) API standards D) OSHA standards - ANSWER D The angles of any triangle add up to A) 45 degrees B) 90 C) 100 D) 180 - ANSWER D What is the travel on a rolling offset that has a Run of 18'', a roll 24'', and a height of 12'' A) 29 3/ B) 32 5/ C) 34 15/ D) 38 9/16 - ANSWER C Which of the following is a quick opening valve? A) Globe B) Needle C) Butterfly D) Gate - ANSWER C Find the lowest common denominator for 1/8 and 1/ A) 3 B) 5 C) 7
D) 8 - ANSWER D
A piping drawing that shows both the side view and the top view of a piping system is A) Elevation B) Isometric C) Plan D) Double-line - ANSWER B The movement of pipe that is caused by an increase in temperature is called A) Hot spring B) Thermal expansion C) Heat swelling D) Pipe stretching - ANSWER B A cold spring relieves A) Cavitation B) Water hammer C) Thermal expansion D) Tension - ANSWER C How many feet apart must oxygen and fuel gas cylinders be stored, unless there is a 5 ft high, 30 minute burn rated wall between them? A) 5 B) 10 C) 15 D) 20 - ANSWER D When performing a line break, first?
C) Face-to-face D) Center-to-face - ANSWER A Ground fault circuit interrupters SHOULD be located A) Closest to the power tool B) At the source of power C) On individual extension cords D) On cords with only 3 prong connections - ANSWER D What is the most important hazardous condition in or around an excavation? A) Falls B) Water C) Cave-In D) Vibration - ANSWER C What happens when a misaligned pipe flange is bolted up to an aligned pump's suction flange? A) The speed of the motor will increase. B) The pump and motor will be in alignment. C) The speed of the motor will decrease. D) The pump and motor will be out of alignment. - ANSWER D A pretest field inspection includes all of the following EXCEPT the A) Piping system matches the drawings B) Piping components match the specifications C) Proper gaskets are Installed D) Vent at the low point of the system - ANSWER D
In relation to welding HAZ stands for A) Health activated zone B) Heat affected zone C) Hazard communications D) High altitude zone - ANSWER B Expansion joints allow A) The pipe line to be easily dismantled B) For linear expansion and contraction of pipe lines C) Easy access to flange connections D) Access to unclog the line - ANSWER B Level glasses are also called A) Sight glasses B) Eye glasses C) Inspection ports D) Spirit viles - ANSWER D Bending pipe allows the process to A) Coat less B) Heat up more C) Be stopped D) Flow more freely - ANSWER D Where are title blocks typically located on a drawing? A) Upper right B) Lower right C) Upper left
B) 2 1/2''
C) 2 3/8''
D) 1 1/2'' - ANSWER C
Dry washing is a form of A) Removing excess weld B) Cold springing C) Stress relieving D) Hot springing - ANSWER A Who needs to inspect an excavation prior to the start of work each day? A) Forman B) Safety person C) Superintendent D) Competent person - ANSWER D When performing a hydrostactic test, at what percentage of the MAXINUM intended test pressure should the test be paused and the system inspected? A) 25% B) 30% C) 50% D) 75% - ANSWER C What is the elevation of the BOP of an 12'' schedule 40 pipe if its center line elevation is 203'- 1 1/2''? A) 203'- 1 1/2'' B) 202'- 7 1/8'' C) 202' - 1 1/2''
D) 202' - 0 1/4'' - ANSWER B
If both fists are placed in front of your body with your thumbs pointed outward, the crane operator should. A) Extend the outriggers B) Raise the boom C) Extend the boom sections D) Retract the boom sections - ANSWER C What is the length of pipe required to fabricate a 8'' diameter schedule 40 pipe spool with one 90 degree butt weld elbow on one end, and one 45 degree butt weld elbow on the other end, with a center-to-center measurement of 72'' (assume a 1/8 welder gap) A) 58 3/ B) 54 3/ C) 52 1/ D) 46 1/4 - ANSWER B All of the following types of pipe are thermoplastic EXCEPT. A) Polyvinyl Chloride (PVC) B) Fiberglass C) Polyethylene D) Acrylonitrile - Butadiene- Styrene - ANSWER B Which of the following is a classification of cast iron pipe? A) Schedule 40 B) Schedule 80 C) XH D) XS - ANSWER C
B) Pi x radius x height C) L x W x H D) B x H x D - ANSWER A What MINIMUM number of bolts can be removed from an 8-bolt flange when a slip blind is inserted for hydrotesting? A) 2 B) 3 C) 4 D) 5 - ANSWER C Globe valve : A) Prevents reversal of flow through a piping system B) Has a globe - shaped handle C) Relieves pressure D) Is better than a gate valve for throttling flow - ANSWER D In relationship to the diameter of the eye bolt, how deep should the tapped holes for eye bolts be? A) 1/2 times B) 1 time C) 1 1/2 times D) 2 times - ANSWER C When fabricating a spooled piece of pipe which type of drawing would normally be used A) Plan view C) P & ID B) Isometric D) Orthographic - ANSWER B
What is the product of 7.60 x 0. A) 0. B) 1. C) 1. D) 9.912 - ANSWER A To signal that you want to use the main hoist A) Extend your arm and raise your thumb B) Tap your elbow C) Tap your hard hat D) Clasp your hands - ANSWER C How much would a 40' - 6''length of 12'' diameter standard weight pipe weigh? A) 2009 lbs B) 2013 lbs C) 2650 lbs D) 2655 lbs - ANSWER A What would be the long segment measurement of a SIX-PIECE, 90 degree mitered elbow that has a radius of 24'' A) 3 3/ B) 7 5/ C) 7 13/ D) 15 1/2 - ANSWER B Performance, reliability, and quality of components are assured by use of A) A qualified journeyman B) Standards and Codes
What is the height of the raised face on a class 600 forged steel weld neck flange? A) 1/16'' B) 1/8'' C) 3/16'' D) 1/4'' - ANSWER D In MOST instances, what is stamped or forged on the side of valves, fittings, and flanges? A) Date of manufacture, size, and heat number B) Wall thickness, corrosion resistance, and type of material C) Type of material, size, and pressure rating D) Heat number, wall thickness, and country of origin - ANSWER C If the area of a rectangle is 432 sq ft and one side is 12 ft long, how long is the other side? A) 9 ft B) 18 ft C) 36 ft D) 72 ft - ANSWER D What is used to open flanges for the installation of a test blind? A) Pipe Wrench B) C-Clamp C) Flange Spreader D) Pry Bar - ANSWER C What is the MINIMUM height above the side of the trench, that a trench box wall should extend?
A) 18''
B) 24''
C) 30''
D) 36'' - ANSWER A
To what position does a pneumatic control valve that loses its air supply return? A) Normally Open B) Normally Closed C) Mid Range D) Fail Safe - ANSWER D The two types of scaffolds used by pipefitters is the Tubular Buck and A) Web B) Pole C) Beam D) Flange - ANSWER B When can a lighted torch be unattended? A) When it is hung B) When properly secured C) When adjusting regulator settings D) Never - ANSWER D The majority of pipe hangers and supports are coated with zinc-rich galvanizer to. A) Provide for a flexible support B) Verify color code for pipe supports C) Reduce friction in pipe supports D) Provide corrosion resistance of pipe supports - ANSWER D
