OIT OIT Tools and Equipment 2 — Questions and Answers
Question 1: What is the correct procedure for storing pneumatic tools when not in use?
- Disconnect from air supply, clean, and store in a dry location (Correct answer)
- Leave connected to the air line for quick access
- Store with the chuck key inserted
- Hang vertically by the air hose
Correct answer: Disconnect from air supply, clean, and store in a dry location
Pneumatic tools should be disconnected from the air supply, wiped clean, and stored in a dry environment to prevent corrosion and accidental activation.
Question 2: In Ontario trade certification, what does the colour coding on electrical test leads typically indicate?
- Red is positive/live, black is negative/common (ground) (Correct answer)
- Red is ground, black is live
- Both colours have the same function
- Blue is live, yellow is ground
Correct answer: Red is positive/live, black is negative/common (ground)
The standard colour convention for electrical test leads is red for positive/live and black for negative/common ground.
Question 3: Which type of hand saw is best for cutting metal pipe in a trade environment?
- Hacksaw (Correct answer)
- Crosscut saw
- Jigsaw
- Coping saw
Correct answer: Hacksaw
A hacksaw with the appropriate fine-tooth blade is the standard hand tool for cutting metal pipe in trade work.
Question 4: What is the purpose of a continuity tester in electrical trade work?
- To verify whether an electrical circuit is complete and current can flow (Correct answer)
- To measure voltage in a circuit
- To calculate resistance in ohms
- To identify wire gauge size
Correct answer: To verify whether an electrical circuit is complete and current can flow
A continuity tester checks whether a complete electrical path exists between two points in a de-energized circuit.
Question 5: When selecting a wrench for a hex bolt, what is the best practice to avoid rounding off the fastener?
- Use a properly sized socket or combination wrench that fits snugly (Correct answer)
- Use the largest wrench available for more leverage
- Use an adjustable wrench set loosely
- Use pliers when a wrench is not available
Correct answer: Use a properly sized socket or combination wrench that fits snugly
Using a correctly sized, snug-fitting socket or combination wrench prevents the corners of the bolt head from being damaged or rounded off.
Question 6: What maintenance procedure should be performed on a power drill regularly to ensure its longevity?
- Inspect and clean the chuck, check cord for damage, and lubricate per manufacturer guidelines (Correct answer)
- Replace the motor brushes after every use
- Submerge in solvent to clean internal parts
- Store with the chuck fully tightened
Correct answer: Inspect and clean the chuck, check cord for damage, and lubricate per manufacturer guidelines
Regular inspection of the chuck, cord, and lubrication per manufacturer specifications extends drill life and maintains safe operation.
OIT OIT Tools and Equipment 2
What is the correct procedure for storing pneumatic tools when not in use?