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NCCER Introduction to Construction Drawings| Module 6 Questions and Answers| Fully Updated 2025 A foreman asks you to find where the main sewer line runs under a site using the drawings. What should you check first? The civil drawings, because they show stuff like sewer lines, water lines, and other underground utilities clearly. You’re handed a blueprint with a broken line that’s made up of long dashes and short dashes. What does that line usually represent? That’s a cen...

NCCER Industrial Maintenance Machanic| Exam Review 2025/2026| Updated Questions and Answers A maintenance tech is troubleshooting a pump that's vibrating more than usual after startup. Could be misalignment between the motor and pump shaft. Happens a lot if the base wasn't shimmed right or bolts got loose. You're sent to fix a gearbox that's leaking oil at the seal. Most likely the shaft seal's worn out or damaged. Could also be overfilled or pressurized too much. ...

NCCER Heavy Equipment Operation (HEO)| Certification Test Paper| Verified Solutions 100% A bulldozer operator notices the blade tilting unevenly while grading a slope. What might be going wrong and what should they check? Could be a hydraulic issue or maybe the track is lifting due to uneven ground. I’d check the blade’s cylinders and make sure both tracks are staying level and have good contact with the ground. You're operating a backhoe in soft, muddy soil and the rear s...

NCCER Exam (2025/2026)| Basic Safety| Verified Questions and Answers| 100% What could go wrong if a worker ignores a lockout/tagout procedure before servicing equipment? They might get seriously hurt or even killed if the machine powers on unexpectedly while they’re working on it. Lockout/tagout is there to make sure all energy sources are shut off and can't be turned back on. Why would wearing loose clothing around moving machinery be a major risk? Loose clothes can get cau...

NCCER Exam Questions and Answers| May/June 2025| Verified 100% A plumber is installing a backflow preventer on a commercial building's water supply line. Why is this installation necessary? It keeps dirty water (like from toilets or sprinklers) from flowing back into the clean drinking water. That’s super important for health and code compliance. During a pressure test, the gauge drops slowly over an hour. What does that suggest? There’s probably a small leak somewhere in th...

NCCER Electrical Test| Level 1 and 2| Exam Questions and Answers| Latest Update 2025 A circuit has one light that keeps flickering randomly. The voltage tests fine at the breaker. Probably a loose neutral or a bad connection at the fixture. Breakers might look good, but the issue could be at the device or junction box. You’re installing a 3-way switch circuit but one switch only works when the other is on. Sounds like the travelers are wired wrong. You might’ve swapped the comm...

NCCER Electrical Level 1 - Module 5 Introduction to the NEC (National Electric Code) | Exam Questions and Answers 2025 What should an apprentice do first before using the NEC to look up an installation rule? Check the Table of Contents or Index to figure out which article or section talks about the type of work you're doing. Saves time instead of flipping through everything. A journeyman says the NEC is a how-to guide for wiring. Is that correct? Not exactly. The NEC sets the ...

NCCER Electrical Level 2 Module 2| Past Paper | Verified Questions and Answers A journeyman electrician notices a voltage drop when a motor starts. What’s the most likely reason for this in terms of current? The motor pulls more current when starting, called inrush current. That sudden draw drops voltage because the circuit wasn’t sized for that extra load. Someone installs a transformer but connects the secondary winding backward. What problem could this cause in a 240V to 1...

NCCER Core Module 1 Exam| Questions and Answers| Latest Version (2025/2026)| Verified 100% A worker notices a frayed extension cord but keeps using it because they’re in a rush to finish a task. That’s unsafe. Damaged cords can cause shocks or start fires. It should’ve been tagged “Do Not Use” and replaced right away. Someone is working on a ladder and decides to lean over to reach a tool just out of arm’s length. That’s a fall risk. You’re only supposed to move...

NCCER Core Curriculum Module 1(6th Edition)| Exam Fully Updated | 2025/2026| Q&A A worker forgets to check the power tool's cord before plugging it in. What key safety step was skipped? They skipped inspecting equipment for damage. You’re supposed to check tools before using them in case there’s exposed wire or a frayed cord that could shock you. While unloading materials, a team decides to carry heavy drywall sheets without asking for help. What’s wrong with this decisi...