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Free Practice Questions for VETA Welding and Metal Fabrication CBA
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Sample VETA Welding and Metal Fabrication CBA Practice Questions
Try these sample questions to review concepts for the VETA Welding and Metal Fabrication CBA exam. Each question includes a detailed explanation. Start the interactive quiz above for the full 32+ question experience with AI tutoring.
1What should determine the protective filter shade selected for an arc-welding helmet?
A.The welding process and operating conditions, using applicable guidance and the helmet instructions
B.The color of the helmet shell
C.The workpiece's paint color alone
D.The lightest available shade regardless of process
Explanation: Filter selection must provide suitable protection for the actual welding process and conditions, including current where relevant. A clear impact lens alone is not a substitute for an appropriate welding filter.
2Heating galvanized steel during welding can generate fumes associated particularly with which acute illness?
A.Asbestosis
B.Metal fume fever from zinc oxide exposure
C.Silicosis from quartz dust
D.Decompression sickness
Explanation: The zinc coating can produce zinc oxide fume, which is associated with metal fume fever. Welding fume requires effective controls; this named acute illness does not describe all the possible health risks.
3Why can shielding gas create a life-threatening hazard when welding inside a tank?
A.It guarantees that all flammable residues are removed
B.It makes a single pre-entry oxygen check sufficient for the whole job
C.It can displace breathable air, requiring a properly planned confined-space system
D.It removes the need for extraction because the gas is used for welding
Explanation: Shielding gases can displace oxygen without providing an obvious warning. Confined-space work needs appropriate authorization, isolation, ventilation, atmospheric monitoring, and rescue arrangements; a welding gas supply is not a breathing-air supply.
4Before hot work begins near combustible plant equipment, what is the main purpose of a hot-work permit procedure?
A.To replace the need for equipment isolation
B.To prove the finished weld passes inspection
C.To record only the welder's working hours
D.To authorize work after the required fire, atmosphere, isolation, and emergency controls are established
Explanation: A hot-work permit controls the conditions under which ignition-producing work may proceed. It must be supported by actual precautions, such as removal or protection of combustibles and the specified fire-watch arrangements.
5Which component is intended to arrest a flame traveling back through an oxy-fuel gas system?
A.Gas economizer
B.Pressure gauge
C.Cylinder transport cap
D.Flashback arrester
Explanation: A suitable flashback arrester incorporates a flame-arresting element and may include other protective functions. Select and install the correct devices as instructed; a simple non-return valve does not itself arrest a flame.
6A gas cylinder's paint color is unfamiliar and its label cannot be read. What should the fabricator do before connecting it?
A.Identify it by smelling a small release
B.Identify it only from the thread direction
C.Keep it out of use until its contents and correct connection are positively identified through the supplier's procedure
D.Assume all cylinders of that size contain oxygen
Explanation: Cylinder color conventions vary and must not replace positive identification. An unreadable or uncertain cylinder should be handled through the supplier's identification process rather than connected by guesswork.
7Why should an acetylene cylinder be secured upright for use according to the supplier's instructions?
A.To make acetylene settle into a separate layer
B.To help prevent solvent being carried into the gas-delivery system
C.To increase its rated working pressure
D.To eliminate the need for a regulator
Explanation: Acetylene is stored dissolved in a solvent within a porous mass. Upright use helps control solvent carryover; handling and any standing time after horizontal transport must follow the supplier's instructions.
8What is the function of a simple non-return valve in an oxy-fuel torch gas line?
A.To measure flow continuously
B.To quench every flame front
C.To reduce cylinder pressure to the working setting
D.To resist reverse gas flow
Explanation: A non-return valve allows flow in the intended direction and closes against reverse flow. Flame arresting is a separate protective function, even when a combined device contains both features.
9In an AWS E7018 electrode designation, what does the number 70 indicate?
A.Minimum deposited-weld-metal tensile strength of 70,000 psi under the classification requirements
B.A required welding current of 70 A for every diameter
C.A maximum plate thickness of 70 mm
D.A flux coating containing 70% iron powder
Explanation: The strength digits indicate the classification's minimum tensile strength in thousands of pounds per square inch. They do not select the actual operating current, which also depends on electrode diameter and the manufacturer's recommendations.
10Which of these is a rutile-coated general-purpose electrode classification for manual welding of mild steel?
A.E6010
B.E6013
C.E7018
D.E308L-16
Explanation: E6013 electrodes use a rutile-based covering and are widely used for general mild-steel fabrication. Select a particular product's diameter, current, polarity, and application from its datasheet and the welding procedure.
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