Powered Equipment Safety—Compressors and Portable Generators

Question 1

What makes electrical Construction work easy and safer

Answer 1

Compressed air

Question 2

What is compressed air use for

Answer 2

To drive pneumatic tools such as jack hammer, air tampers, air chisels or drills and missiles

Question 3

How does a compressor work

Answer 3

A moving piston back in forth through a cylinder produces a compress air. The air produce in that cylinder is moved to a air tank which build up certain psi which is control with a regulator

Question 4

What does PSI stand for

Answer 4

pounds per square inch

Question 5

What does a regulator do in a compress system

Answer 5

Once the correct psi is reach in the tank the regulator cuts the power from the driving force

when the psi drops the regulator open it up to allow the drive force to build the correct psi.

Question 6

What is a driving force

Answer 6

The driving force can a hand pump, an electric motor or a diesel engine. its duty to move the piston

Question 7

What happen if the regulator malfunction

Answer 7

If the regulator fails to keep the safe psi there’s a safety valve on the tanks that open up and let out excess pressure but if the safety valve fails the air tank will eventually explode

Question 8

What is a Petcock Valve and how its operated

Answer 8

Air tank makes moisture and a way to release it is through the petcock valve which is in the bottom of the air tank

Question 9

What happen if the moisture from the air tank is not drained

Answer 9

it becomes compromised because it can rust the air tank from the inside or it can freeze the water accumulated from the moisture

Question 10

What is a ball valve and ehere its located

Answer 10

It’s a shutoff valve that is connected in the point of release to control the compress air

The ball valve is located at a convenient location on the outside of the truck or trailer.

Question 11

What air hoses

Answer 11

Air hoses are attached to the ball valve with air couplings that turn against each other by 90°, locking each half together. The hose is used to carry compressed air to the pneumatic tool, which is connected at the other end

Question 12

For air hoses to be safe what you need

Answer 12

spring-loaded loop at each end

Question 13

Air compressor brings two safety concern

Answer 13

noise associated with the pressure behind the air and the noise of any pneumatic tools

Question 14

Osha subpart D, 1926.52) is based on what safety

Answer 14

amount of exposure time to that noise before permanent hearing loss may occur

Question 15

85 decibels

Answer 15

eight-hour

Question 16

88 decibel

Answer 16

four hours

Question 17

91 decibels

Answer 17

two hours

Question 18

94 decibels

Answer 18

one hour

Question 19

normal conversation

Answer 19

60 decibels

Question 20

Typical city traffic has a noise

Answer 20

85 decibel

Question 21

lawn mower

Answer 21

90 decibels

Question 22

pneumatic drills

Answer 22

120 decibels

Question 23

jackhammers

Answer 23

130 decibels

Question 24

What are other safety concerns about compressor

Answer 24

-Never direct the jet of air towards any persons or animals.

-Air compressors must not be used for pharmaceutical, food, or sanitary purposes.

-Compressor air is not suitable for breathing. Do not attempt to fill scuba tanks.

-Be cautious as to where air hoses are placed because they may be a tripping hazard.

Question 25

When electricity is need and is not available what people use

Answer 25

Generator

Question 26

How does energy produce electricity

Answer 26

produce electricity by converting mechanical energy to electrical energy mechanical energy is provided by a gas engine, which rotates a shaft inside a magnetic field. Attached to the shaft is a series of conductors. The rotation of the conductors in the magnetic field produces an electromotive force (EMF) on the conductors, which then is output for electricity to the outlets on the generator.

Question 27

What is a safety concerns for generators

Answer 27

A great concerns about generator is where to put them because they are combustion gas engine that produce carbon monoxide

Question 28

What are places that generator are never to place while rin operation

Answer 28

such places are a house, basement, crawl space, garage. or other partially enclosed spaces

Question 29

What is carbon monoxide

Answer 29

its a colorless and order less gas that is not detected by the human senses.

Question 30

What are the effects of carbon monoxide when expose to it

Answer 30

will lead to a feeling of nausea, which could be followed by dizziness, weakness, full incapacitation, and even death.

Question 30

In order for generator to run properly and with out harming anybody it needs to be place where

Answer 30

in a well-ventilated area outdoors

Question 31

What is needed to fuel a generator

Answer 31

Never fuel a generator while it is running and the engine is hot. Spilled gas or fumes could ignite from the heat of the engine. Shut the generator off and allow the engine to cool before filling the gas tank. The heat of the engine is also enough to cause severe burns to bare skin. Never touch any part of the engine until it has had time to sufficiently cool.

Question 32

What other hazards does generator pose other than fumes

Answer 32

Electrical Hazards

Question 33

What is a way to protect yourself from an electric shock from a generator

Answer 33

Using a ground fault circuit interrupter (GFCI) note: some generators bring a GFCI and some don't Operator's Manuel of generator has the info about GFCI if it has it

Question 34

How does a GFCI operates

Answer 34

it opens the circuit if it detects an imbalance of the load

Question 35

what cause an imbalance of a load

Answer 35

frayed or crushed wires in the cord causing a direct or partial short, an improperly grounded tool, or a significant amount of current flowing upon the start of a device such as a large motor.

Question 36

Never operate the generator when its....

Answer 36

wet or muddy condition makes sure it place in flat dry surface such as a tent to protect it from moisture

Question 37

Why Extension cords pose as one of the biggest hazards

Answer 37

Improper gauge of the wire burn up or becomes really hot making it a hazard

Question 38

How to inspect a Extension cord

Answer 38

Inspect the outer jacketing of the extension cord for any cuts or damage to the cord before using it. Check the male end of the cord and make sure all three prongs are intact. Never use a cord that has had the third grounding prong removed. If damage is found, destroy the cord by cutting off both ends.

Question 39

What is to consider of a generator

Answer 39

The size of the generator base on watts

Question 40

What is the difference between lights and induction motor tools

Answer 40

Motor induction uses 3 to 7 times that watts to start and after its running it power cuonsumbtion drop to 1/3 but apliance like light is the same watts throguh out

Question 41

What you need to calculate the wattage safely of tool

Answer 41

always add an extra 10 to 20 percent of wattage for appliance

Question 42

What happen with devices run on low voltage

Answer 42

it becomes damage

Question 43

To safely operate a generator in you house you need what

Answer 43

properly rated transfer switch