Tools & Equipment Operation Flashcards
7 cards from real CAR practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Tools & Equipment Operation flashcards as text
When using a recovery machine to extract refrigerant from an appliance, which action is required before opening any system valves?
Answer: Verify the recovery cylinder is not full
Technicians must confirm the recovery cylinder has adequate capacity before opening valves to prevent overfilling and unsafe pressure buildup.
Which type of drill bit is most appropriate for creating pilot holes in sheet metal appliance housings?
Answer: Twist drill bit with titanium coating
Titanium-coated twist drill bits are designed to cut cleanly through sheet metal without grabbing or deforming the material.
An appliance recycler notices the cutting blade on a band saw is drifting during cuts. What is the most likely cause?
Answer: Blade is dull or improperly tensioned
Band saw drift is typically caused by a dull blade or incorrect blade tension, both of which prevent straight, consistent cuts.
What is the primary purpose of a torque wrench when disassembling appliances for recycling?
Answer: To measure and control the force applied to fasteners
A torque wrench measures applied rotational force, preventing over-torquing that could damage components or under-torquing that could leave fasteners loose.
Which PPE is specifically required when operating a hydraulic baler to compact appliance scrap?
Answer: Safety glasses, steel-toed boots, and hearing protection
Hydraulic balers generate noise, flying debris, and crush hazards requiring eye protection, foot protection, and hearing protection simultaneously.
A refrigerant scale used in appliance recycling reads consistently 0.5 lbs higher than the known weight of a standard cylinder. What should a technician do?
Answer: Calibrate or replace the scale before further use
A scale with consistent offset error must be recalibrated or replaced to ensure accurate refrigerant weight measurements required by EPA regulations.
When using an air chisel to separate welded appliance components, the operator should hold the tool at approximately what angle to the work surface?
Answer: 10–20 degrees (nearly flat)
Holding an air chisel at a low, nearly flat angle reduces the risk of the bit digging in and allows the chisel to separate materials with a shearing action.