Oxy fuel_cutting_and_welding_and_shielded_metal_arc_welding[1]_(1)[1].txt

Fuel gas cylinders shall be placed with valve ------ whenever in use

Fuel gas hose and oxygen hose shall be easily __________ from each other

Hose couplings shall be of the type that cannot be unlocked or disconnected by means of a ______ without rotary motion

Oxygen cylinders and ______ shall be kept away from oil or Greece

All arc welding and cutting cables shall be of the completely _______ flexible type

cables in need of repair ______ be used

All ground _______ shall be inspected to ensure that they are mechanically strong and electrically adequate for the required current

The term _______ means the equipment or material included in a list published buy a nationally recognized testing laboratory

Shall is used to indicate ______ which are mandatory

Supervisors shall be responsible for the safe ________ of the welding equipment and for the safe ______ of the welding process

Welders shall cut or weld only where all _______ have been met

Goggles shall be vented to deter _______ of the lenses

Helmets hand- shield and goggles shall be well _______ and should not be transferred from one employee to another without being cleaned

Cape sleaves or shoulder covers with bibs made of ________ or other_______ material shall be worn during overhead welding cutting or other operations when necessary

Caps made from_________ materials shall be worn under helmets when necessary to prevent head burns

Only ________ respiratory protective equipment shall be used

Adequate _______ shall be provided for all welding cutting brazing and related operations

Before______ or_______ is begun in a location not designed for such purposes inspection and authorization by a designated management representative shall be required

Confined spaces shall be tested for toxic or flammable gases, dusts and vapors, and for________or_______oxygen before entering and during occupancy

When welding or cutting in confined spaces, gas cylinders in welding power sources shall be located ________the confined space

When a person enters confined space through a manhole or other small opening, means shall be provided for __________ outside personnel for help

Installation and operation of welding, cutting, and related equipment shall be done by, or under the supervision of a ________operator

Cylinder valves shall be _______when equipment is unattended

Hoses cables and conduit shall be ______ and ________ so that they will not be physically damaged

Oxy- fuel cutting is the process of _______ iron or steel into distinct pieces by using an oxy-fuel flame in combination with a jet of pure oxygen

oxy-fuel gas cutting of ferrous metals is a process of _______ the material to be cut to its kindling or ignition temperature

An oxyacetalene flame has a peak temperature of approximatly

List three types of oxyacetalene flames

A _______ flame wich consumes approximatley half oxygen from cylender and half acetelene, is used mostly for welding steel.

When more oxygen is supplied to the _____ flame, the inner cone becomes darker and shorter and the whole flame is smaller and hotter

In most cases, cuts are started at the _____ of the piece.

Never adjust an oxyacetelene flame by ______ the amount of acetelene

Oxyacetelene welding is a ___________ process where coalesence is produced by heating with a gas flame.

What are two types of work stations

Oygen cylinders are supplied with speacially designed bronze valves which are always _____ open when the oxygen is being used

a small drop of oil or greese inside an oxygen ____ or _____ can cause a explosion

when Acetylene is continuosly withdrawn at a rate which exceeds 1/7th of the cylinders ____ volume (not its capacity), acetone comes out

Acetylene is generated as the result of the chemical reaction of _______ and water

Recompressing high pressure oxygen in a ____ pressure cavity may create ____ resulting in combustion

List the names of three sides of the fire triangle

all gas-air or gas oxygen _____ should be regarded as potentialy dangerous

the odor of commercial ____ is very noticable and charistic, even in small percentages

Propane is a _____ petroleum fuel, which comes from oil refineries or as gas off the top of oil wells.

the oxyacetylene system is commonly used for ___ and ____ operations in piping installations

goggles with _____ lenses should be individually fitted to secure best efficiancy and personal comfort

what are two types of oxyacetelyne torches

an injector type torch must be used with ____ fuel

a _____ flame is produced by mixing a ratio of aprox. 1 volume of oxygen to 1 volume of acetylene

a torch is essentialy a set of gas tubes with ______ valves

What are the basic components of a torch?

a welding tip or nozzle is normally an assembly consisting of a

a cutting tip with six ______ orifcies will cut more readily in any direction

a single state regulator functions by balancing the force of the _______ spring against the outlet pressure

the adjusting screw of a regulator controls the ____ of the gas and _____ pressure to the hose and torch

fuel gas regulators have ______ threaded outlet connections

the pressure on a low-pressuer gage may require some means of ______ for fluctuation in pressure whe it is used with a long hose or a high rate of flow

a premium quality welding hose, ______ is recomended for applications with all fuel gases including acetylene

a ______ is the momentary recession of the flame into the torch tip followed by immediate reapperance of complete extiguishment of the flame

a _____ is the recession of the flame into or back of the mixing chamber of the torch

The reverse flow check valce principle employs a tiny spring mechanism which _____ a small ball or seat to provide a tight seal

Reverse folow check valves and internal check valves are _____ devices that can leak when dirty or damaged

diameter and length of flashback arrestors are _____ to the volume of gas passing through them

Flashback arrestors eliminate the risk of an explosion in the ____ and cylenders

a _____ journeyworker is one who knows not only the technical aspects of the piping trades but also the saftey precautions

an approved filter lens, at least number ____ shade or darker, is required for eye protection when operating oxy-fuel equipment

all welding and cutting equipment must be kept clean and absolutly free of greese, oil and other _____ based substances

Reverse flow check valves should be tested every ___ months at a minumum

regulators must be used only with the ____ and ____ for which the are designed

the oxygen torch connection is usually identified by a _____ in the torch body or in the torch handle, oppisite the oxygen valve

reverse flow caused by ______ pressures results in mixed gases in hoses or regulators

do not activate an oxyacetelene system with the regulators pressure _____ screw turned in

Before lighting the torch, ____ of the system is necessart to reduce the possibility of a mixed gas condition in the system

check oxyacetylene equipment for leaks using an _____ oil free leak detection fluid

Using less than required volume of acetylene gas for welding my result in _____ of tip or equipment and can lead to an internal fire or flashback

always match the ____ size to the metal to be cut or welded

If the flame goes out and burns back within a torch, which usually produces a pronounced hissing or squealing noise, immediatly ____ the torch

How many adjustments are on a combination oxyacetylene cutting or welding torch

List the proper order of the 2 steps for exstinguishing the torch flame after cutting or welding

Protective clothing must allow _______ while providing adequate coverage against burns from sparks, weld splatter and arc radiation.

Heavy _______ gloves should always be worn to protect your hands for burns cuts and scratches

It is essential that your eyes are protected from ________ exposure

You should choose a shaded _______ to dark to see the weld, then move to lighter shades without dropping below the minimum rating

What are two good reasons to wear ear muffs or plugs

Before starting any arc welding operation, you should make a

Cylinders must be secured in an _______ position

Open the cylinder valve only when standing to one side of the_______, away from welding or other sources of ignition

The ______ of electric shock is one of the most serious and immediate risk facing you as a welding operator

The _______ v shock is very hazardous because it is much greater than the welder secondary v

A ________ V shock occurs when you touch a part of the electrode circuit

A stick electrode is always ______ when the welder is on

The fume _______ contains solid particles from the consumables, base metal and base metal coating

Cadmium fume can be _____ even under brief exposure

The _______ that result from an arc welding process also present potential hazards

there's one easy way to reduce the risk of hazardous fumes and gases, keep your head out of the ________

When arc welding in a confined area there is danger is that enough _______ may be present in the confined space to cause an explosion

Always be sure the _______ cable makes a good electrical connection with the metal being welded

When working above floor level use a______ to protect yourself from a fall should you get a shock

Arc welding is a method of ________two pieces of metal into one solid piece

The electric arc is made between the _______ and the tip end of a small metal wire, the electrode

A gap is made in the welding _______by holding the tip of the electrode a distance of 1/16 to 1/8 away from the work

an electric arc is very ______ as well as ______ and cannot be looked at with the naked eye

A slap forms on _______ of a weld to protect it during cooling

An electrode is composed of a core of _______ metal wire around which has a baked on chemical

List five types of welding

Welding machines are rated according to their ___________, V, and duty cycle and are available in a wide range of sizes

Transformer welders are available for operation on __________ Power lines

Rectifier set are basically _______ or ________ transformers to which have been added silicon or other rectifiers to change the output current from alternating to direct current

Direct current generators use an ______ rotating in a electrical field

Inverter power welding sources provide high electrical _______ and a fast response time

Engine driven welding machines provide _______electrical current

Welding current is conducted from the source of power to the electrode holder by an insulated _________ cable

The size of cables used in welding varies, depending upon the_______of the machine and the ________ of cable required

A work clamp fastened to the work ________ the welding circu8

The electrode universally used for manual arc welding has a core of wire or rod covered with a baked ________ covering

When selecting an electrode, it is necessary to use one

The chemical covering on the outside of an electrode is called a _______, because it had a mixing and cleansing effect on the weld

Classifications of ____ and ______ electrodes are based on a E prefix and a four or five digit nu5

The first two digits of four digit number and the first three digits of five digit numbers indicate ________ tensile strength

The next to last digit indicates the _______ of the weld

All low hydrogen and stainless electrode must be _______ to perform properly

A relatively ________ amount of moisture in low hydrogen and stainless electrodes cause visible external porosity in addition to internal porosity

Electrodes to be re dried should be removed from the can and spread out in the furnace because

What are 2 types of pipe alignment clamps

A method of holding a pipe ______ while preparing for a fit up can be accomplished by using a hold down clamp

List four components parts of a hold down

When it is impossible to make a visual check on a fit up a _______ gage is used

Jack bars are located on the hold down clamp chain

The method of checking Hi-lo on a small fitting is done with a measuring device

Jackscrews are located on jackbars

A spacing tool is used to obtain proper spacing on each joint for welding bracket with pointed screwst

A retainer pin is located on the main block and is used to stop the chain clamp from kicking up

A hold Down clamp is used to draw the slack out of the chain while on pipe for final tightness