Glencoe: 10 Flashcards
Construction sites are required to have X on hand
firefighting equipment
Classes of fire:
A: Wood, paper, cloth, plastic B: Grease, oil, chemicals C: Electrical chords, switches, wiring D: Combustible metals
Pass acronym:
Pull the pin Aim nozzle towards base of fire, stand 8 feet back Squeeze the handle to discharge the extinguisher Sweep the nozzle at the base of the fire
Excavation:
cut, cavity, trench, or depression made by removing earth
Two basic ways to shape an excavation:
Benches and simple slope
Benching:
the soil is excavated to form one or more steps or horizontal levels.
Simple slope or benched excavations more than X’ must be designed by a registered engineer
20’
Always X before you dig
Call, local utilities must be contacted in order to determine location of existing underground utility lines
Proper slope depends on
soil type
Soil and equipment must be kept at least X’ away from edge of excavation:
2 feet
Standing water must be X
pumped out of the excavation
Pneumatic tool:
a tool powered by compressed air
Most nailers and staplers operate on pressure of X to Y psi
60 to 120psi
Pneumatic Tools: When choosing a tool for a particular application, first determine the X, then find a tool that will Y
type and size of fastener needer Tool that will drive that fastener
How a nailer works: The trigger must be X and the Y
pulled and the nose piece must be pressed against the work piece before the tool can be fired.
Sequential Trip:
prevents the tool from firing unless the nose is pressed against the work piece before the trigger is pulled
Contact trip:
These nail guns do not have the safety feature of the sequential trip.
Nails do not always go in straight and may fishhook out one side of the wood. Keep your hand at least X” to one side of the impact point.
6”
How do you maintain Pneumatic Tools?
Store the tool at room temp Lubricate the gaskets on a regular bases check the magazine which holds the fasteners as it may become clogged with dirt
What is a gasket?
piece of flexible material that keeps liquids or air from moving between parts of the tool.
An air compressor:
squeezes air into an air storage tank
Regulator:
valve that controls the air pressure reaching a nailer or a stapler.
Air-storage tank is usually a cylinder holding X to Y gallons of air
1 to 10
A pressure gauge measures X A line gauge measure Y
pressure in the tank pressure in the hose leading to the tool
Air compressor maintenance: Maintain the proper X level in the pump:
Oil
