Prepare for the NCCER Ironworker certification exam with these practice questions and answers. This guide covers structural steel erection, reinforcing, rigging, welding, and safety procedures.
Q: How should bolts on an 8-bolt flange be tightened?
Answer: In a star pattern
Q: Pipe jack stands are…
Answer: Dangerous if used for a pipe size larger than their size specifications
Q: The next question refers to the graphic below: the kissing measurement for dimension A is
Answer: 1 foot 6 inchespjd
Q: A valve is being rigged for installation in a vertical line. The valve should be rigged so that the flange faces of the valve are…
Answer: Parallel
Q: What does it mean to “two-block” a crane?
Answer: Use a block that makes contact with the boom.
Q: Which of the following flanges is frequently used for high-pressure and high-temperature service?
Answer: Raised face
Q: What is the square footage of the surface area of a steel plate measuring 120″x 48″
Answer: 48 square feet
Q: A pipe has been threaded with a Rigid 535 machine and now threads are to be checked with a fitting. How many turns are normally sufficient to check the threads?
Answer: 3 to 4 turns
Q: Which off the following statements is true about a 6 inch, 300#full-face flange used on a typical valve?
Answer: All of the bolts must be removed from the flange to remove the gasket
Q: Which is the preferred type of flange for piping that will be used in sever service conditions?
Answer: Weld neck
Q: While installing a 3-inch diameter pipe run under a beam, beam clamps and clevis hangers are used. The REQUIRED centerline elevation for the pipe is 22 feet at both beams. What is the BOP elevation for the 3 inch pipe?
Answer: 21 feet, 10 1/4 inches
Q: What is a threaded swage nipple?
Answer: A pipe nipple that is used to join pipes of different sizes
Q: How many bolts are needed for a 4- inch. 600# flange?
Answer: 8