NCCER Boilermaker Maintenance Exam Questions with 100% Correct Answers 2024, Exams of Advanced Education

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NCCER Boilermaker Maintenance Exam

Questions with 100% Correct Answers

At what angle is a chain fall usually used? - Correct Answer- Vertical Pipeline PNID ask for what size the main line is - Correct Answer-12" What does the PNID ask for material - Correct Answer-A- When attaching two pipes together what fitting is used? - Correct Answer-Coupling When attaching two different pipe sizes together what fitting is used? - Correct Answer-Bushing What is a tigger? - Correct Answer-Winch What controls water in the towers? - Correct Answer- (Distributors) internally installed above a packed bed. Which

performs the job in providing a finite liquid distribution over the packed bed. What is the minimum rated tie off point? - Correct Answer- 5,000lbs What causes a kink in a wire sling? - Correct Answer-Sling against a support/structure Where is the flame arrester located? - Correct Answer-At the handle All of the following are examples of the internal many hardware except? - Correct Answer-Slide fastener The fitting that makes it easy to disassemble threaded pipe is?

• Correct Answer-Union What is the purpose of a gasket? - Correct Answer-To create a seal between two stationary parts

What is the first consideration when making a gasket? - Correct Answer-Material compatibility Ring gaskets may be effected by all of the following except? - Correct Answer-Number of bolts Which way should the teeth face on the hacksaw blade? - Correct Answer-Away from handle The pressure of 1" and 10" pipe when both are 20' tall? - Correct Answer-The pressure is both the same When making a threaded connection and it stops on second thread? - Correct Answer-Stop something is wrong When using a sealing ring on heat exchangers what material is used to seal off in between the floating tube sheet and test ring? - Correct Answer-Permatex For duct bolted together there is usually some kind of? - Correct Answer-Gasket

In the end of a tube sheet of an exchanger had been smashed this is caused by all of the following except? - Correct Answer- partition plate being too short Which of the following should be removed when pressure testing the vessel - Correct Answer-Relief valve All of the following are safety hazards associated with vessel confined space except? - Correct Answer-Improper inspection Valves used to relief pressure in a pipe line? - Correct Answer- Safety valve What tool can be used to generate force making tightening amid loosing easier? - Correct Answer-Impact Title blocks are found where? - Correct Answer-Bottom right corner Taps are used to cut what type of threads? - Correct Answer- Internal

Oxyfuel torch what valve must be turned off first? - Correct Answer-Acetylene What does SWL stand for? - Correct Answer-Safe working load When tighten up a manway or tower that has 1" 1/4 by 8" stud bolts what size wrench should you use? - Correct Answer- 2" What valve can start and stop without regulating flow? - Correct Answer-Gate valve What valve can start & stop & WILL regulate flow? - Correct Answer-Globe valve What valve can be placed with out directional flow? - Correct Answer-Gate valve If crane booms up the load will? - Correct Answer-Go up and towards the crane

If crane booms down the load will? - Correct Answer-Go down and away from crane How to you plug up exchanger tubes? - Correct Answer-Pop-A- Plug When making a Pipe thread connection where should you apply liquid lubricant? - Correct Answer-Male threads When making a tight close seal on a threaded pipe which wrench should you use? - Correct Answer-Pipe Wrench When is it allowed for the load not to have a tag line? - Correct Answer-Both OSHA and industry standards require the use of taglines unless the load configuration and weather conditions are such that load control is not needed What does packing do for the valve stem? - Correct Answer- Stop it from leaking What is the safest way to light an oxy acetylene? - Correct Answer-Friction starter

When sealing an exchanger tube how do you seal it? - Correct Answer-Pop-A-Plug How do you use two straps together? - Correct Answer- Shackle What way will the shackle bolt face when rigged with 4 slings?

• Correct Answer-Bolt down What is a combination square - Correct Answer-(Picture) If you were needing to make a repair on a "U"tube bundle what needs to be removed? - Correct Answer-Dollar Plate What components are attached to the baffle on an exchanger tube bundle? - Correct Answer-Tie Rods In order to get the bundle to line up with the shell side gasket the best tool to use to lift the bundle is a? - Correct Answer- Drift Pin

How far should a screw eye bolt be screwed in so it's properly seated? - Correct Answer-All the way in Pack beds are bound in all of the following except for? - Correct Answer-Furnaces What do baffles do for an exchanger bundle? - Correct Answer-Support the tubs during assembly and operations and help prevent vibration from flow-induced eddies What is the proper way to place a pin in a shackle? - Correct Answer-All the way and back it out a hair How should a gasket face when using nubbin? - Correct Answer-Smooth side towards the nubbin What is the purpose for nubbin? - Correct Answer- Predominately machined into a heat exchanger flange to create a high stress to produce a tighter seal What type of wrench measures how much a fastener is being tightened? - Correct Answer-Torque

Where would the usage of a RTJ Gasket be found? - Correct Answer-High Pressure System Washers are used to prevent fasteners from marrying? - Correct Answer-Surface To pull a bundle from the shell the eyebolts should be installed on the? - Correct Answer-Tube steel What type of bolt can be used as a lifting device? - Correct Answer-Eye Bolt When plugging a straight tube exchanger in the shell all of the following heads need to be removed except? L - Correct Answer-Tube Head Find the wrench size using the bolt diameter equation? - Correct Answer-Turn it into a fraction, find common denominator, divide in half, add 1/8th, then add it to the whole fraction and complete the fraction