CAT Tools & Equipment Operation 3 — Questions and Answers
Question 1: When terminating alarm wiring at a screw terminal, the wire end should be:
- Twisted into a clockwise hook matching the screw's tightening direction (Correct answer)
- Left straight and inserted under the screw head
- Soldered before insertion to prevent fraying
- Doubled back and folded under the screw
Correct answer: Twisted into a clockwise hook matching the screw's tightening direction
Forming a clockwise hook ensures the wire wraps tighter as the screw is tightened, creating a secure connection.
Question 2: A conduit bender is marked with degree indicators. When making a 90-degree stub-up in rigid conduit, the technician should:
- Bend past 90 degrees to account for spring-back
- Align the arrow mark with the measured start point and apply steady foot pressure (Correct answer)
- Heat the conduit first with a torch
- Make three 30-degree bends to approximate 90 degrees
Correct answer: Align the arrow mark with the measured start point and apply steady foot pressure
Aligning the bender's arrow with the stub measurement mark and applying steady pressure produces an accurate 90-degree bend.
Question 3: What safety precaution is essential when using a powder-actuated fastening tool on an alarm installation job site?
- Wear only safety glasses
- Obtain proper training/certification and ensure bystanders are clear of the muzzle direction (Correct answer)
- Use it only on wood framing
- Fire a test shot into the air before use
Correct answer: Obtain proper training/certification and ensure bystanders are clear of the muzzle direction
Powder-actuated tools require operator certification and a clear safety zone because the fastener can penetrate or ricochet with lethal force.
Question 4: Which type of terminal tool is used to crimp an insulation displacement connector (IDC) onto a twisted pair wire without stripping the insulation?
- Butt splice crimper
- 110-type punch-down tool (Correct answer)
- RJ45 crimp tool
- Wire nut applicator
Correct answer: 110-type punch-down tool
A 110-type punch-down tool seats the conductor into an IDC block terminal and cuts the excess wire in one motion.
Question 5: A technician notices the drill motor is overheating during a long masonry drilling job. The correct action is to:
- Pour water on the bit to cool it
- Continue drilling to finish the hole quickly
- Stop and allow the motor to cool before continuing (Correct answer)
- Increase speed to generate less friction time
Correct answer: Stop and allow the motor to cool before continuing
Allowing the drill motor to cool prevents thermal damage to the windings and prolongs tool life.
Question 6: When pulling wire through a conduit run with multiple 90-degree bends, which technique reduces pulling tension?
- Pulling all conductors at maximum speed
- Using wire pulling lubricant and pulling from the middle of the run
- Reducing conductor count by using smaller gauge wire
- Installing a junction box and pulling in segments (Correct answer)
Correct answer: Installing a junction box and pulling in segments
Breaking a long conduit run at a junction box allows each segment to be pulled independently, dramatically reducing tension.
Question 7: A label printer is considered an essential tool for alarm technicians because it:
- Programs control panels automatically
- Creates permanent, legible wire and component identification labels (Correct answer)
- Tests wire resistance
- Generates as-built wiring diagrams
Correct answer: Creates permanent, legible wire and component identification labels
Permanent printed labels on wires, zones, and panels are critical for future troubleshooting and code compliance documentation.
CAT Tools & Equipment Operation 3
When terminating alarm wiring at a screw terminal, the wire end should be: