Powered Equipment Safety—Compressors and Portable Generators Flashcards
Moving a piston back and forth through a cylinder produces compressed air.
True
What does a regulator do?
Determined the maximum safe air pressure in the air tank
What are the driving forces to move a piston in an air compressor.
Hand pump
Electric motor
Gas or Diesel Engine
What is a Petcock Valve?
Valve used at the bottom of the air tank to release the left over compressed air to blow out moisture that collects over use. Must be drained at end of day.
What is a Ball Valve?
Serves as a shutoff valve to anything that is connected to it.
When the work is complete, or it becomes necessary to change pneumatic tools to continue with the work, the ball valve must first be closed and the pressurized air released from the air hose with the air handle on the pneumatic tool.
True
Releasing an air hose connection under pressure is dangerous due to the forces of ?
compressed air
What are method to secure air hoses?
Hitch
Cotter pin
Flexible cable with spring loaded loop
Compressed Air brings forth two safety concerns
Noise with the pressure
Noise with the pneumatic tools
What is OSHA’s reasonable level of noise in dB.
85 decibels
What is the decibel level of pneumatic drill?
pneumatic drills at 120 decibels
What is the decibel level of Jackhammers?
130 decibels
Generators produce electricity by converting mechanical energy to electrical energy.
True
Safety concerns that arise from using compressed air equipment include: the noise from the air pressure, the noise from the pneumatic tools, and the ? from an unattached hose under pressure.
Uncontrollable Whipping
As the noise level increases by three decibels, the amount of exposure time is cut by ? .
Half
