Which of the following sets contains only commonly used ALRE maintenance tools?

• A. Wrenches, pliers, screwdriver, tape measure
• B. Torque wrench, calibrated gauges, micrometers, calipers
• C. Soldering iron, heat gun, oscilloscope, multimeter
• D. Thermometer, barometer, hygrometer, compass

Answer: (B)

Precision control and measurement tools are essential in ALRE maintenance because many components require exact torque and tight tolerances to ensure reliable operation of the launch and recovery gear. A torque wrench lets you apply the exact specified torque to fasteners, preventing overtightening or loosening. Calibrated gauges, micrometers, and calipers are used to verify dimensions, thicknesses, bore sizes, and proper alignment—critical when assembling or inspecting linkages, pins, shafts, housings, and hydraulic fittings. This combination supports accurate assembly, adjustment, and inspection, contributing to safety and performance.

The other sets focus on tools outside of that typical core: general hand tools, electronics testers, or environmental instruments that aren’t regularly part of ALRE maintenance toolkits, so they don’t represent the commonly used collection for this context.