Concrete:composition and mixing
at minimum, how may minutes does a batch of cement need to be mixed.
3
What is a hard hat?
This standard piece of headwear must be worn at all times on site to protect against falling objects.
This type of footwear is strictly banned in the shop
open toed/ sandals
what type of clothes should you wear while welding?
flame resistant/ leather
what is a wheel-based hand tool that is turned around the pipe to cut it cleanly without a saw.
a pipe cutter
what do you need to determine the amount of concrete needed for a job?
the volume of the job.
What are safety glasses (or goggles/face shields)?
These are required when grinding, chipping, or handling chemicals to protect your eyes from flying debris.
in what direction should you cut?
away from your body.
What is a chipping hammer?
Use this metal tool to chip the crusty slag off your finished weld.
If PVC pipe is over-tightened it __________.
Should be replaced.
what is Type IV low heat Portland cement is used for?
Massive structures.
What are steel-toe (or composite-toe) boots?
These protective boots are required to prevent your toes from being crushed by heavy equipment.
what type of playful, disruptive behavior is strictly banned in the shop and will get you kicked out immediately?
horseplay
what is the minimum shade number required for a welding helmet lens?
shade 10
what is a union?
a mechanical connection
how many gallons of water does damp sand have per cubic foot?
a quarter gallon.
What are leather (or cut-resistant) gloves?
You should wear this type of heavy-duty glove when handling sharp sheet metal or rough lumber.
what should you do if something spills in the shop?
pick up immediately
What is the wheel guard?
This clear plastic guard on the grinder must always face your body to block sparks.
What is used to connect steel and copper pipe?
Transition couplings.
what are the 3 characteristics of good quality concrete?
consistency, uniformity and workability.
What is a welding hood (or welding helmet)?
This critical piece of face gear features a darkened lens to protect the eyes from blinding ultraviolet and infrared light.
what color is universally used in the shop to mark physical hazards, like the edges of stairs or trip hazards?
yellow
Acetylene gas becomes highly unstable and explosive if its pressure gauge is set above what PSI?
15 PSI
Electrolysis