NCCER Module 4 Exam| Power Tools
Questions and Answers [Verified]|
2025/2026 Update
A worker needs to make long, straight cuts in plywood sheets. They grab a reciprocating saw.
That’s not the best choice – a circular saw is way better for straight cuts. Reciprocating
saws are more for demolition or rough cuts.
Someone’s cutting metal pipe and their portable band saw keeps stalling. They’re pushing
down hard to get through faster.
That’s the problem – you gotta let the weight of the saw do the work. Pushing too hard
slows the blade and can mess it up.
While using an angle grinder, sparks keep flying towards the user’s shirt sleeve.
That’s a safety issue – the spark guard might be misaligned. Always adjust the guard so
sparks shoot away from your body.
A worker drills into concrete with a regular drill and says it’s taking ages.
Wrong tool – for concrete, a hammer drill is way faster because it combines drilling with
pounding action.
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The battery on a cordless impact driver drains super fast during use.
That might mean they’re using it on the wrong setting or the battery’s worn out. Impact
tools use more juice, so a weak battery won’t last long.
Someone wants to cut a clean hole in a wood board for wiring but grabs a reciprocating saw.
Not ideal – they should’ve used a hole saw attached to a drill. Recip saws aren’t good for
clean, round holes.
After using a pneumatic nailer, a worker leaves it connected to the air hose.
Not safe – always disconnect air tools before walking away. Could misfire if someone
bumps the trigger.
A grinder user takes off the guard because it’s blocking their view.
Big no – guards are there to protect you from flying bits and sparks. Never remove safety
gear just for visibility.
A student says a jigsaw is perfect for cutting metal pipe.
Nah, jigsaws are better for curves in wood or thin sheet metal. Use a pipe cutter or
bandsaw for metal pipes.
Someone’s cutting wood on a miter saw and holds the board with one hand.
That’s risky – always secure the workpiece with a clamp or both hands (one operating,
one holding safely). One hand isn’t stable enough.