Tools & Equipment Operation Flashcards

When using a rotary impact hammer drill to anchor a cable tray bracket into a concrete ceiling, which personal protective equipment (PPE) is mandatory?

Answer: Safety glasses, hard hat, and hearing protection at minimum

Overhead concrete drilling produces falling debris (hard hat), high-velocity chips (safety glasses), and excessive noise levels (hearing protection), making all three mandatory.

A fiber optic cleaver is used instead of a scribe-and-break method because it:

Answer: Produces a flat, perpendicular end-face required for low-loss fusion splicing or connector termination

A precision cleaver creates a geometrically flat, mirror-smooth fiber end face, which is essential to minimize insertion loss when splicing or connecting optical fiber.

What does an insertion loss test on a fiber link measure?

Answer: The total signal power lost between the light source and power meter, expressed in dB

Insertion loss testing injects a known optical power level and measures received power; the difference in dB represents the total link loss from connectors, splices, and fiber attenuation.

Why is it important to use the correct blade setting on a termination strip (Krone) punch-down tool?

Answer: The blade must match the IDC manufacturer's specification — incorrect blades can split contacts or fail to fully seat conductors

Krone, 110, and BIX IDC contacts have different geometries; using the wrong blade can damage the plastic body or leave conductors partially seated, causing intermittent faults.

A cable tray fill calculation indicates the tray is at 40% fill. Under NFPA 70 (NEC), ladder-type cable trays for data cables generally allow a maximum fill of:

Answer: 50% of the tray cross-section for 4-inch depth trays with single-layer cables

NEC Article 392 limits cable tray fill based on tray depth and cable type; for 4-inch ladder trays with multiconductor data cables, single-layer fill up to 50% of the usable interior cross-section is typical.

Which tool is used to test a coaxial cable connector's return loss and confirm that F-type or BNC connectors are properly installed?

Answer: Vector network analyzer or coax sweep tester

A coax sweep tester or VNA measures return loss across a frequency range, confirming that coaxial connectors are properly crimped and impedance-matched to the cable.

When using a manual cable reel stand to pay out cable from a large spool, the spool should rotate so that cable feeds:

Answer: From the top of the spool, in the direction opposite the pull to prevent kinking

Cable fed from the top of a properly oriented spool unwinds with the natural lay of the cable, minimizing twist and preventing kinks that could damage pair geometry.