T/F PPE safety glasses/goggles must have Z87 or Z87+ marked on the frame
T/F Any welding lens shade is permissible for all types of welding applications
T/F Infrared radiation (IR) cannot be felt
T/F Arc blow occurs when a magnetic field is developed while welding and causes the arc to move in an unpredictable manner
T/F The primary purpose of a shielding gas being present during the welding process is to protect the molten puddle form atmospheric contamination
T/F Changing the length of the arc while welding does not change the heat of the arc
T/F With SMAW, the primary reason starting the arc is more difficult than maintaining the arc is because the gas at the arc strike is not fully ionized
T/F Using a weave pattern while placing a bead will increase the amount of heat in the weldment
Which polarity listed does not cause (magnetic) arc blow?
With SMAW and a given amperage, which polarity will provide the deepest penetration of the bead?
Which of the following welding processes does a welder have some choice in the polarity selected for a given electrode?
GTAW or SMAW
Which of the following statements is not a consideration when choosing DCEP or DCEN for a SMAW electrode?
Base metal shapes (plate, pipe, etc.)
T/F An edge joint is formed with two overlapping materials. The edges create fillet weld
T/F Reinforcement refers to the depth of the penetration
T/F Restricted position means that the welder's positioning when welding pipe is restricted. Areas to be welded are difficult to reach
T/F When a weld symbol is both above and under the reference line, it means that welds are to be completed on both sides of the joint
T/F An outside corner joint creates the geometry for a groove weld
T/F Pipe welding is comprised mostly of fillet welds
T/F A square groove weld requires some type of mechanical joint preparation prior to fit-up
T/F A lap joint creates the geometry for fillet welds
T/F A 3F weld is a fillet weld completed on the horizontal position
The edges of a weld are the?
For welding certification, a flat welding position groove weld is
If a weld symbol is_______ the reference line, then the weld is to be completed on the side that the arrow is pointing to
Which of the following identifies pipe positioned at a 45-degree angle?
Cutting tips are made out of which alloy?
Copper or chrome plated
What could happen if acetylene was used with the wrong tip?
The tip could overheat and cause backfire
What is the most widely used fuel gas used for cutting?
The oxygen cylinder valve should be opened____
Slowly until the pressure registers on the cylinder guage, them all the way up to prevent leaks in the top of the valve
The center hole on a cutting tip determines
The thickness of material to be cut
T/F The SMAW process only uses AC polarity
T/F Alternating current (AC) is the preferred type of current for welding for SMAW
T/F A welder inverter is less complex than the other traditional welding power sources
T/F The stops and re-starts necessary with SMAW electrodes increases the risk of weld defects
T/F Direct current has neither a positive or negative value 120 times per second
T/F SMAW has one of the highest operating factors of the arc welding processes
The most basic type of welder is an
Which of the following is not part of the welding electrical circuit?
None of the above
The transformer inside a welding power source converts high voltage, low amperage electricity to_________ electricity for welding
Low voltage, high amperage
To increase penetration of a bead, you should select which welding polarity?
Which polarity is also referred to as reverse polarity?
Changes in the welding arc length will also change the following electrical characteristics?
T/F Metals are joined using the arc welding process when two pieces of metal are heated to their melting point and additional metal is added to the molten puddle. This molten mass cools and solidifies into one solid piece
T/F DCEN polarity is used when welding in the GMAW process
T/F The loss of shielding gas when welding outdoors can cause weld failures as a result of porosity, lack of fusion, and other undesirable discontinuities in a weld
T/F GMAW exclusively uses inert shielding gas
A constant voltage system strives to keep which variables constant?
T/F The delivery of gas to the arc is not important to the quality of the finished weld in the FCAW-G welding processes
T/F A flow meter regulator is designed to measure cylinder pressure and gas flow
T/F The four roll drive system of a wire drive is used primarily for industrial applications
T/F A FCAW wire drive component cannot be used for other types of welding wire
T/F A basic FCAW power source is a transformer
T/F The CTWD is the total of both the wire stick out and the arc length
T/F An air cooled welding gun will be limited to operating at lower amperages
The gas diffusor functions in the following manner?
All of the above
Which of the following is not true in describing the liner in the welding gun assembly?
It is a permanent part of the cable assembly
What is the technology that senses the consumables are installed properly into the torch?
What are the two parameters that can be manually adjusted on the PAC machine?
Amperage and air pressure
What two items should not be carried in your pocket when cutting?
Plastic lighter and matches
T/F Self-shielded electrodes are best suited for indoor applications
T/F The FCAW self-shielded electrode can be thought of as a STICK welding electrode turned inside out
T/F The FCAW process uses a continuous consumable electrode
T/F FCAW processes have a much higher deposition rate than SMAW
T/F The E70T-X electrode can be used in all-position welding
T/F Multi-pass welds can be made with FCAW-G electrodes
T/F As a process, FCAW-S is considered to be more portable than the FCAW-G process
The primary function of the flux inside a FCAW-S electrode is to
Protect the weld
The main operating difference between FCAW-S and FCAW-G is
An E81T-X FCAW electrode will have a minimum of_____ psi tensile strength
Calcium is part of the flux with FCAW electrodes for which of the following reasons
Produce the slag