Module 4 Flashcards
What do you do before replacing any parts bits blades or discs for power tools ?
Disconnect the power source
What do you never engage on power tools ? If one is installed
The trigger lock
Most hammer drills will not hammer until what ?
Until pressure is applied
When are pneumatic tools usually used ?
When there is no electrical source available
What does the guard on power tools do ?
It protects workers from flying debris, and from workers being cut by blade/from moving parts
When circular saws cut they leave what ?
A kerf
How thick is a kerf ?
Usually 1/8 inch wide
What side do you align the blade with while cutting ?
Align the blade with the waste side to account for the kerf
Which saw is used for doing delicate and intricate work, such as cutting out patterns or irregular shapes ?
A saber saw (jig saw)
Before changing blades from saws, what must you do ?
Disconnect the saw from the power source
Before plugging in a saw to a power source, what do you do ?
Make sure the switch on the saw is on the off position
Which saw combined a miter box with a circular saw to make straight and miter cuts ?
Power miter saw
What is used to grind away hard heavy materials and surfaces such as pipes plates and welds ?
An angle grinder
When using a grinder what PPE is essential ?
A face shield
When grinding or beveling, what should you always use as support ?
A tool test
What’s the maximum gap between the grinders wheel and tool rest ?
1/8 maximum gap
What’s the maximum gap between the wheel guard and the wheel on a grinder ?
1/4 inch
Before mounting a grinding wheel into a bench grinder what do you do ?
Check the wheel for chipped or cracked edges, then perform a ring test
Why does using a burr bit require steady hands ?
Before it operated at high rpm and can catch onto burns which shifts the grinder around a bit
What tool is used to drive steel pins or threaded steel studs directly into masonry and steel ?
Powder actuated tools
What do you do before using any pneumatically powered nailers ?
Read the manufacturers instructions
Using powder actuated fastening tools requires what ?
certification and special training
What tool is used for large scale demolition work such as tearing down brick and concrete walls and breaking up concrete or pavement ?
Pavement breaker (Jack hammer)
What types of hydraulic jacks are there ?
Those with internal pumps and those that use a lever operated pump
