Welding Fundamentals Practice

1. What is a weld joint?

A. The arrangement where parts are joined by weldingB. A fuel-storage fittingC. An electrical meter scaleD. A tire inflation tool

2. What is a butt joint?

A. Two overlapping parts onlyB. A rod inside a closed tankC. A cable wrapped around a pipeD. Two parts meeting edge to edge

3. What is a lap joint?

A. A single uncut plateB. A threaded bolt connectionC. One part overlapping anotherD. Two parts meeting only at their ends

4. What is a T-joint?

A. A bolted flangeB. One part meeting another in a T arrangementC. Two plates joined end to endD. A circular closed seam only

5. What is filler metal?

A. Material added to form the jointB. Oil used to cool the helmetC. Paint covering the weldD. Insulation around a cable

6. What is the function of shielding gas in applicable welding processes?

A. Cool the worker's handsB. Replace electrical groundingC. Remove all fire riskD. Protect the weld area from atmospheric contamination

7. What does GTAW stand for?

A. Gas transmission air washingB. Ground terminal attachment wiringC. Gas tungsten arc weldingD. General trailer axle welding

8. What does GMAW stand for?

A. Gas manifold axle workB. Gas metal arc weldingC. General metal air washingD. Ground motor attachment wiring

9. What does SMAW stand for?

A. Shielded metal arc weldingB. Surface measurement air washingC. Steel motor attachment wiringD. Sealed manifold arc wrapping

10. What is a tack weld used for?

A. Replace every structural weldB. Hide all surface contaminationC. Reduce a cylinder's pressureD. Hold parts in position before completing the joint

11. What is weld penetration?

A. Thickness of helmet glassB. Pressure in a gas cylinderC. Depth of fusion into the base materialD. Length of a welding cable

12. What is weld porosity?

A. A type of pipe threadB. Gas cavities in the weldC. Normal electrode lengthD. A specified cable bend

13. What is slag in processes that produce it?

A. A nonmetallic layer formed from fluxB. The shielding-gas regulatorC. A type of welding helmetD. An electrical current unit

14. Why clean and identify coatings before welding?

A. Paint always improves fusionB. Rust replaces filler metalC. Coatings eliminate the need for ventilationD. Coatings can affect weld quality and create hazardous fumes

15. Why protect nearby people from an arc?

A. It prevents all noiseB. It increases electrode lifeC. Arc radiation can injure exposed eyes and skinD. Arc light makes batteries lose charge

16. What should determine welding lens shade and protective equipment?

A. Only the metal's paint colorB. The process, exposure and applicable guidanceC. The worker's favorite colorD. Only the room temperature

17. Is a welding helmet alone enough to control welding fumes?

A. No, appropriate fume controls are also neededB. Yes, it filters every gasC. Yes, if the visor is darkD. Yes, if gloves are worn

18. What should you do before hot work near combustible material?

A. Assume sparks cool instantlyB. Hide combustibles beneath paperC. Spray them with fuelD. Remove or protect combustibles and follow the hot-work procedure

19. What should a beginner do with a used fuel tank needing welding?

A. Assume an empty tank cannot explodeB. Test it with an open flameC. Refer it to qualified specialists using approved proceduresD. Weld it after a quick rinse

20. Why obtain qualified inspection for a safety-critical weld?

A. Every weld has identical strengthB. Appearance alone cannot prove the joint is suitableC. A smooth bead always proves full strengthD. Paint guarantees penetration

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