Into 1st Year Flashcards
Oh and s divides workplace hazards into 4 categories:
1) biological
2) chemical
3) physical
4) ergonomic
Oh and s hierarchy to control hazards (3):
1) engineering
2) administrative
3) ppe
Green csa triangle?
Grade 1 protective toe and sole protection
Orange omega csa symbol
Extra electrical insulating property
Arc blast:
-Vaporizing of copper + expansion
-sound db over 160 and with enough force to cause shrapnel to penetrate human body
Fire extinguisher class a (green 🔺️)
Ordinary combustible
Fire extinguisher class B ( 🟥 )
Flammable liquids or gasses
Fire extinguisher class C ( 🔵 )
Electrical
Fire extinguisher class D ( ⭐ )
Combustible metals
Fire extinguisher class K ( ⬛)
Combustible cooking media
PASS method for fire extinguisher
Pull the pin
Aim the nozzle
Squeeze the handle
Sweep the nozzle
According to oh and s all employers must have a work site safety program?
False: not some government workers or farmers
SDS used to be called
MSDS
3 key elements of whimis
1) worker education
2) product labeling
3) safety data sheets
A workplace label should have
- product identifier
- whimis hazard symbols
-pixtogram of ppe - handwritten info
- reference to the Sds
What would you do to isolate piping?
- blanking(blinding)
- double block and bleed
You must update an SDS :
Every 3 years or when new info becomes available
What is a dead blow hammer commonly used for
Dislodging stuck parts
What does a prick punch do?
Makes a small mark on the scribed area ( use a center punch after for a larger mark)
What does a prick punch do?
Makes a small mark on the scribed area ( use a center punch after for a larger mark)
A drift punch:
Is tapered and used to align holes
A pin punch is used for:
Removing dowel pins, tapered pins and cotter pins
What is the danger of using torque wrench extensions?
The torque is greater than indicated by the dial reading
4 types of torque wrench extensions
- crowfoot
- open end
- flare nut
- spanner
The size of a bench vice is designated by:
The width of its jaw
You should never hammer on the ____ _____ of a vice
Slide bar ( part that slides in n out)
Saw blade pitch
of teeth per 25 mm(1 inch)
Hacksaw pitch 14
Large sections of mild material
Hacksaw pitch 18
Tool steel, high carbon steel, high speed steel
Hacksaw pitch 24
Angle iron, brass, copper, iron pipe
Hacksaw pitch 32
Conduit , thin tubing, sheet metal
Kerf is
Width of cut in work material
On a tap the part that does most of the cutting is
The taper / chamfer
On a tap the land :
Is the cutting section
On a tap the flutes:
Provide space for chips to build up and a passage for cutting fluid
A single cut file :
Produce a smooth finish as in draw filing
A double cut file :
Effortless chip removal and high metal removal rates
A curved tooth file
Use on soft metals such as copper or aluminum
Cross filing :
Stroke about 30 degrees , removes large amounts of material
Draw filing:
Smooth cut file at 90 degrees back and forth . Provides good surface finish
What is the purpose of the groove on a metal stamp?
To show orientation
Why is the end of an open wrench at 15 degrees?
So you can flip it over and keep turning it
Difference between open and closed coated abrasive?
Open 50 - 70 % of backing covered
Closed 100%
Tongue n groove pliers aka
Channelocks
