NCCER POWER TOOLSEXAM PRACTICE
QUESTIONS WITH VERIFIED ANSWERS
A tool feature added for convenience that turned out to be very unsafe and should never be
used is the...
Trigger Lock.
Before changing the blade or bit or doing any kind of repair...
Unplug the Tool!
Before plugging in tools with on/off switches...
Turn it off!
Most commonly used to make holes but with the right bit can be used as a sander, polisher,
screwdriver, grinder, or countersink tool.
Power Drill
If you can't loosen the drill chuck by hand to remove the drill bit then you probably need
a... (It is a small, T-shaped steel piece used to open and close the chuck on power drills)
Chuck Key
These tools do not activate the hammering function until pressure is applied to the bit.
Hammer Drill
When there is no electricity or high production is necessary then you need these kind of
drills.
Pneumatic Drills
A tool for cutting that has an adjustable blade depth and two blade guards, one of which
moves as you cut.
Circular Saw
The width of the saw blade should be on the wasted side of the cut. That's called the...
Kerf
Good for cutting intricate details or rounded cuts. Commonly called a Jigsaw
Saber Saw
A great saw for demolition. Often called a Sawzall.
Reciprocating Saw
, This saw has a one-piece blade that runs in one direction around two guides. It is often
used for cutting metal pipe.
Band Saw
A combination of a miter box and a circular saw
Miter Saw
This is used to grind away hard, heavy metal like welds.
Angle Grinder
Bits used to remove rough edges form the inside and outside of pipes or other objects.
These operate at very high RPM and can catch on burrs.
Burr Bits
1/8" between tool rest and wheel
¼" between wheel guard and wheel
What tool are these numbers important for?
Bench Grinder
Slide the wheel onto a rod that fits the grinding wheel. Tap the wheel gently with a piece of
wood or tool. It should ring clearly if it is in good condition. This test is called a...
Ring Test
These tools run on air and you should always read the owners manual before operating
them so you know about all the special features and switches.
Pneumatic Nailers
These tools require special training and use actual gunpowder to fire nails through steel or
concrete.
Powder Actuated Tools
Make sure you know what kind of pipes and electrical wires are buried in the ground
before using these large demolition tools.
Pavement Breakers: AKA Jackhammer
Often referred to as a Porta-Power, this lever operated hydraulic tool is used to lift things
up off the ground.
Hydraulic Jack
The common power supplied to most all wired devices, where the current reverses its
direction many times/sec.
Alternating current (AC)
QUESTIONS WITH VERIFIED ANSWERS
A tool feature added for convenience that turned out to be very unsafe and should never be
used is the...
Trigger Lock.
Before changing the blade or bit or doing any kind of repair...
Unplug the Tool!
Before plugging in tools with on/off switches...
Turn it off!
Most commonly used to make holes but with the right bit can be used as a sander, polisher,
screwdriver, grinder, or countersink tool.
Power Drill
If you can't loosen the drill chuck by hand to remove the drill bit then you probably need
a... (It is a small, T-shaped steel piece used to open and close the chuck on power drills)
Chuck Key
These tools do not activate the hammering function until pressure is applied to the bit.
Hammer Drill
When there is no electricity or high production is necessary then you need these kind of
drills.
Pneumatic Drills
A tool for cutting that has an adjustable blade depth and two blade guards, one of which
moves as you cut.
Circular Saw
The width of the saw blade should be on the wasted side of the cut. That's called the...
Kerf
Good for cutting intricate details or rounded cuts. Commonly called a Jigsaw
Saber Saw
A great saw for demolition. Often called a Sawzall.
Reciprocating Saw
, This saw has a one-piece blade that runs in one direction around two guides. It is often
used for cutting metal pipe.
Band Saw
A combination of a miter box and a circular saw
Miter Saw
This is used to grind away hard, heavy metal like welds.
Angle Grinder
Bits used to remove rough edges form the inside and outside of pipes or other objects.
These operate at very high RPM and can catch on burrs.
Burr Bits
1/8" between tool rest and wheel
¼" between wheel guard and wheel
What tool are these numbers important for?
Bench Grinder
Slide the wheel onto a rod that fits the grinding wheel. Tap the wheel gently with a piece of
wood or tool. It should ring clearly if it is in good condition. This test is called a...
Ring Test
These tools run on air and you should always read the owners manual before operating
them so you know about all the special features and switches.
Pneumatic Nailers
These tools require special training and use actual gunpowder to fire nails through steel or
concrete.
Powder Actuated Tools
Make sure you know what kind of pipes and electrical wires are buried in the ground
before using these large demolition tools.
Pavement Breakers: AKA Jackhammer
Often referred to as a Porta-Power, this lever operated hydraulic tool is used to lift things
up off the ground.
Hydraulic Jack
The common power supplied to most all wired devices, where the current reverses its
direction many times/sec.
Alternating current (AC)
