Tools Flashcards
Why does a hacksaw have a protective handle?
To guard your fingers in case the blade breaks
Or your hand slips while you are using the saw
What is the pitch of a hacksaw?
Number of teeth per inch
What is the width of the cut of a handsaw called?
The kerf
What are the 3 parts of a file?
Edge = The edge of the file Heel = The flat part by the handle Tang = The handle
What are the 3 different cutting faces of a file?
1) Single cut = used when a smooth finish is desired
2) Double - cut = used for rough, fast metal cutting or when large amounts of material must be filed off.
3) Curved tooth = used to file soft metals (lead or aluminum)
Which direction does yellow handle snips cut?
They cut straight.
What is mushrooming?
It’s found on the end of a cold chisel after banging on it.
It rounds the end and can become a safety hazard.
Maintenance is required to remove the mushroom head.
What do wide rollers on a pipe cutter provide?
Wider rollers create less chance of the cutter wheel spiralling up the pipe.
What do three-wheeled cutter leave behind more of?
Burrs inside and outside
The burrs must be removed on every cut to avoid difficulty when using threading or grooving equipment.
True or False the spiral ratchet reamer is designed for hand use only
True
What does the sliding of the hooks permit on a tape measure?
Accurate internal and external measurements.
Steel tape are how long and good for what trade?
30 - 50 m (100 - 165 ft) long
Ideal for doing large layouts in construction
What are Wrap - around pipe wraps good for?
Good for marking straight lines around pipe.
What type of hammer face is used in framing?
Cross hatched hammer = hatch marks keep the head from slipping off the nail.
What does a Machine Vise do?
Holds a workpiece for drilling with a drill press.
What is used for preventing marring of work pieces?
Wood pads.
Rags also work.
Know what a Bench Yoke Vise looks like.
How is the size of an adjustable wrenches designed?
By wrench length
Length varies from 10 cm - 61cm (4in - 24in)
Jaw length is a separate.
True or False: When using a wrench you should apply the pressure / push against the side with a fixed jaw.
True.
Wrenches should always be pulled not pushed.
What is the pre-set amount of torque of a Ratchet Torque Wrench?
5/16 in driver is the most common and is pre-set to 60 inch-pounds.
What should be done prior to using a pipe wrench? (housekeeping wise)
Remove any grease or dirt from both the part to be turned and the pipe wrench jaws.
How is a pipe wrench length determined?
From the tip of the handle to the hook jaw when fully extended
What is a Spud Wrench good for?
Also called a monkey wrench
Used on square or rectangular stock (aka flat edged fitting)
Has jaws that are smooth, flat and narrow
What are Strap Wrenches used for?
TO be used on polished or chrome pipe
It’s woven nylon strap gives a tight grip
What can be applied to a strap wrench to prevent slippage?
Powdered Rosin
How do Basin Wrenches work?
A tension plug holds the tool’s head at any angle up to 90 degree.
It’s handy behind sinks / lavatories.
What are arc - joint pliers also known as?
Channellock pliers (The handle travels down a channel)
Tell me all about water pump pliers
Max capacity = 5cm (2in)
It has the ability for rapid changes of jaw opening
What is this image?
Philips screwdriver head
What type of screwdriver head is this?
Twas invented in Canada
Robertson
True or False: A good fit should of a screw to tool ratio should be straight and square.
True
What the fuck are these things?
Spring tubing benders I guess
Flaring tool forms what kind of a flare?
a 45 degree flare
Where should pipe Dope be applied?
Apply to male (external) threads which lubricates the mating of the threads.
Parts of a thread. GO!
Root = bottom of valley Flanks = sides of thread (valley hill) Crest = the peak of the thread (top of hill) Pitch = c-c measurements of the crest (60 degree)
Nominal Pipe Size (NPS) is used for what?
It is used for referencing pipe sizes from 1/8 in - 12 in
The last 3 threads are known as what?
Imperfect threads
Hacksaw cuts, GO!
Never start a cut with a sharp angle - this dulls or breaks the blade’s teeth
There needs to be at least 2 teeth contracting the material at all times.
What is used to clean files?
A file card
Mushroom head, GO
Is extremely hazardous
Must be dressed (repaired) before use again
Cutting glass pipe: What do you do after scoring the pipe from the inside?
Apply heat from a torch on score mark –> tap when score mark begins to separate.
True of False: You should strike the face of another hammer with a hammer.
False: never do this. This can cause a fragment of hardened steel to fly off and injury someone.
What type of pipe is used with a 18 in wrench?
1 1/4 in and 1 1/2 in
Flaring tool part 2: True or false: You want to make sure that tube lines up flush with the flaring bars.
True
How far back does the Crimp ring need to be from the end of the tubing?
3mm (1/8 in)
What does the Go / No go gauge work?
The crimped ring must pass the Go and fail the No Go.
Rotating the Expander tool when using Pex ensures what?
That the tubing is equally expanded to ensure that no deep groves form that would allow leak paths.
What are Pipe taps?
They make internal threads.
Cold weather PEX expansion should take place above what temperature?
-15 degree C
What is the name of the tool used to measure the diameter of a pipe groove (groove depth)?
Pipe tape
