Nccr Flashcards
What is the decimal equivalent of 1/4?
A) .01
B) .25
C) 0.4
D) 0.5
0.25
Piping that is field-routed to a pump must be supported off the _____.
A) Off the pump suction
B) Diagonally
C) Independently
D) Off the pump discharge
Off the pump discharge
What is used when lighting a cutting torch?
A) Striker
B) Cigarette lighter
C) Match
D) Any open flame
Striker
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
Standards and Specifications
Damaged and broken tools should be _____.
A) Used if possible
B) Kept for backup
C) Taken out of Service
D) Used for minor tasks
Taken out of Service
What is the ID of 10’’ schedule 80 piping?
A) 9 3/16
B) 9 5/16
C) 9 9/16
D) 10 1/16
9 3/16
The two steps in making up threaded joints are the hand engagement and _____.
A) Machine makeup
B) Wrench makeup
C) Driver makeup
Wrench makeup
Which action 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
Remove pressure relief valves
How many ordinate lines are needed to lay out a 4-inch lateral riser for a 6-inch pipe?
A) 32
B) 16
C) 8
D) 4
16
Who is qualified to repair power tools?
A) A) Journey person
B) Competent Technician
C) Electrician
D) Tool crib attendant
Competent Technician
Which of the following plastic pipes is NOT joined by solvent welding?
A) PVC
B) HDPE
C) CPVC
D) ABS
HDPE
Material placed in the bottom of the trench under the pipe to provide support is called _____.
A) Heave
B) Sub trench
C) Trench load
D) Bedding
Bedding
Socket weld joints have a gap between the end of the pipe and the bottom of the socket.
What is the purpose of the gap in socket weld joints?
A) Makes assembly easier
B) Reduces flexibility at the fitting
C) Prevents weld cracking
D) Provides fit-up adjustment
Prevents weld cracking
When are rupture discs installed into a pipeline?
flushing and testing of pipeline
B) After installation of the pipeline
C) Before start-up of the system
D) After start-up of the system
Before flushing and testing of pipeline
Chain come-alongs are PRIMARILY designed for?
A) Lifting in close quarters
B) Vertical lifting
C) Lifting in any location
D) Horizontal lifting
Lifting in close quarters
Which type of copper tubing has the thickest wall?
A) K
B) L
C) M
D) Acr
K
What is the MINIMUM grade of chain that may be used for rigging loads overhead?
A) 5
B) 6
C) 7
D) 8
6
At and above what nominal pipe size is the O.D. of the pipe the same as the nominal size of the pipe?
A) 10’’
B) 12’’
C) 14’’
D) 16’
10’’
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
Oblique
The MINIMUM number of pre-heat holes for liquefied fuel tips is _____.
A) 2 C) 6
B) 4 D) 8
2
What is the first step to changing blades and bits on power tools?
A) Disassemble tool
B) Disconnect the power
C) Remove the guards
D) Get a new blade or bit
Disconnect the power
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
Close the valve completely
What is the length of pipe required to fabricate a 6’’ diameter schedule 40 pipe spool with specific flanges?
A) 10 11/16
B) 10 7/8
C) 12 5/16
D) 12 1/2
12 1/2
What is the standard torqueing value of the Victaulic coupling bolts?
A) No torquing is required
B) 40 inch pounds
C) 60 inch pounds
D) 80 inch pounds
60 inch pounds
At what dimension does a pipe begin to be measured by the outside diameter?
A) 8 inches
B) 10 inches
C) 12 inches
D) 14 inches
8 inches
What is the 4th ordinate cutback measurement for a 3’’ diameter type 3 dummy leg on a 6’’ elbow?
A) 12 7/16
B) 10 3/16
C) 8 11/16
D) 6 11/16
10 3/16
What is the ratio of the distance that the ladder should be from the base of the wall to the height where the ladder meets the wall?
A) 1/2
B) 1/3
C) 1/4
D) 1/5
1/4
Trenches MUST be designed, excavated, and shored according to _____.
A) ASME standards C) Company standards
B) API standards D) OSHA standards
OSHA standards
The angles of any triangle add up to _____.
A) 45 degrees
B) 90
C) 100
D) 180
180
What is the travel on a rolling offset that has a Run of 18’’, a roll 24’’, and a height of 12’’?
A) 29 3/8
B) 32 5/16
C) 34 15/16
D) 38 9/16
34 15/16
Which of the following is a quick opening valve?
A) Globe
B) Needle
C) Butterfly
D) Gate
Butterfly
Find the lowest common denominator for 1/8 and 1/2.
A) 3
B) 5
C) 7
D) 8
8
A piping drawing that shows both the side view and the top view of a piping system is called _____.
Elevation
The movement of pipe that is caused by an increase in temperature is called _____.
Thermal expansion
A cold spring relieves _____.
Thermal expansion
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?
20
When performing a line break, first _____.
Loosen each bolt a little at a time
A pipe nipple is any length of threaded pipe that is shorter than _____.
12’’
What is the reference angle if the hypotenuse of a right triangle is 36’’ and its adjacent side is 14’’?
67 degrees
In piping systems, ball joints are installed to allow for _____.
Expansion and Contraction
All of the following drawing dimensions are used to determine the overall length of Run of a pipe EXCEPT _____.
Pipe diameter
Ground fault circuit interrupters SHOULD be located _____.
At the source of power
What is the most important hazardous condition in or around an excavation?
Cave-In
What happens when a misaligned pipe flange is bolted up to an aligned pump’s suction flange?
The pump and motor will be out of alignment
A pretest field inspection includes all of the following EXCEPT the _____.
Vent at the low point of the system
In relation to welding, HAZ stands for _____.
Heat affected zone
Expansion joints allow _____.
For linear expansion and contraction of pipe lines
Level glasses are also called _____.
Sight glasses
Bending pipe allows the process to _____.
Flow more freely
Where are title blocks typically located on a drawing?
Lower right
Expansion loops are NOT made with these types of fittings.
Threaded
A plot shows the _____.
Location of a building on a piece of property
A threading machine equipped with NPT dies is designed to cut which type of threads?
National pipe threads
The term, plum, relates to _____.
Vertical alignment
What is center-to-end length on a 3,000# 2’’ SW 90 ELL?
2 3/8’’
Dry washing is a form of _____.
Removing excess weld
Who needs to inspect an excavation prior to the start of work each day?
Competent person
When performing a hydrostatic test, at what percentage of the MAXIMUM intended test pressure should the test be paused and the system inspected?
50%
What is the elevation of the BOP of an 12’’ schedule 40 pipe if its center line elevation is 203’- 1 1/2’’?
202’- 7 1/8’’
If both fists are placed in front of your body with your thumbs pointed outward, the crane operator should _____.
Extend the outriggers
What is the length of pipe required to fabricate an 8’’ diameter schedule 40 pipe spool with specific elbows?
52 1/4
All of the following types of pipe are thermoplastic EXCEPT _____.
Fiberglass
Which of the following is a classification of cast iron pipe?
XS
Which of the following parts of a layout will NOT be the same for all three lines in an equally spread offset?
Run
Flat Face Flanges require which type of gasket?
Full face
What is a flexible link seal used for?
Seal a pipe in a pipe sleeve
A vertical pipe filled with 10’’ of water has a head pressure of _____.
4.33 psi
What is the formula for finding the volume of a cylinder?
Pi x r squared x h
What MINIMUM number of bolts can be removed from an 8-bolt flange when a slip blind is inserted for hydrotesting?
2
What does a globe valve do?
Prevents reversal of flow through a piping system
In relationship to the diameter of the eye bolt, how deep should the tapped holes for eye bolts be?
1 1/2 times
When fabricating a spooled piece of pipe, which type of drawing would normally be used?
Isometric
What is the product of 7.60 x 0.12?
0.912
To signal that you want to use the main hoist, you should _____.
Extend your arm and raise your thumb
How much would a 40’ - 6’’ length of 12’’ diameter standard weight pipe weigh?
2650 lbs
What would be the long segment measurement of a SIX-PIECE, 90 degree mitered elbow that has a radius of 24’’?
7 5/8
Performance, reliability, and quality of components are assured by use of _____.
Standards and Codes
In-line specialty ball joints solve all the following problems EXCEPT _____.
Flow
Convert 9/16 to a decimal.
0.56
A length of 1 1/2-inch pipe is to be cut to run between two 90-degree 6,000# threaded fittings. The fittings measure 7 ft 2 1/4 inches center-to-center. What is the cut length of the pipe?
6 feet 10 5/8 inches
What are installed in a pipe run to provide extra flexibility between anchors and accommodate thermal growth and contraction?
Expansion loops
What is the height of the raised face on a class 600 forged steel weld neck flange?
1/16’’
In MOST instances, what is stamped or forged on the side of valves, fittings, and flanges?
Type of material, size, and pressure rating
If the area of a rectangle is 432 sq ft and one side is 12 ft long, how long is the other side?
36 ft
What is used to open flanges for the installation of a test blind?
Flange Spreader
What is the MINIMUM height above the side of the trench that a trench box wall should extend?
36’’
To what position does a pneumatic control valve that loses its air supply return?
Normally Closed
The two types of scaffolds used by pipefitters are the Tubular Buck and _____.
Beam
When can a lighted torch be unattended?
Never
The majority of pipe hangers and supports are coated with zinc-rich galvanizer to _____.
Provide corrosion resistance of pipe supports
The three MAJOR trig functions are _____.
Tangent, Cosine, and Sine
When can a lighted torch be unattended?
When it is hung, When properly secured
A lighted torch should never be left unattended unless it is hung or properly secured.
What is the purpose of zinc-rich galvanizer on pipe hangers and supports?
Provide corrosion resistance of pipe supports
Zinc-rich galvanizer is applied to reduce corrosion in pipe supports.
What are the three MAJOR trig functions?
Tangent, Cosine, and Sine
The working load limit of hoisting equipment is based on which condition?
The load being freely suspended
Which drawing provides enough information to fabricate a pipe run?
P & ID
Which tool should be used to install a 2’’ threaded chrome plated pipe in a fitting?
Strap wrench
When must the rigger carefully inspect the chain hoist?
Before each use
Where can you find design requirements and materials for pipe, flanges, valves, and related items?
Specifications
What international identification system is used for all piping and piping components?
API
What is the highest safe standing step or level from the top of a step ladder (A-Frame)?
4th
What is the primary function of a plug valve?
Start and stop flow
When should ladders be inspected?
Before each use
What does WPS stand for?
Welding procedure specification
What does the symbol refer to?
Eccentric reducer
What is the illustrated piece of equipment?
Generator / light tower
What is the illustrated piece of equipment?
Compressor
What is the illustrated piece of equipment?
Fork truck
What is the piece of equipment shown in the provided figure?
Trencher
What is the tool shown in the provided figure used for?
Cut Tubing
What is the attachment shown in the provided figure?
Steel Clevis
What type of flange is depicted by the following figure?
Blind
What pipe hanger is shown in the following figure?
Riser Clamp
What type of hanger is shown in the following figure?
Double-Bolt
What type of Spring can Support is shown in the following figure?
Constant
What is the tool shown in the provided figure?
Flange Spreader
In the Isometric drawing provided, what type of elbow is item # 3?
Butt weld
What type of measurement is shown in the provided figure?
Face to Face
What is the level shown in the provided figure?
Spirit
What is the type of hanger shown in the provided figure?
Roller Support
What is the illustrated piece of equipment?
Scissor lift
