Hvr 110 HVAC final exam Correct Questions & Answers!

Furnace - ANSWER The air flow on most structures that use a fossil fuel for a heat source have a___that would be used as an air supply. Control loop - ANSWER Almost all control systems use a___to control the temperature with in a given structure, space, or zone. Troubleshooting - ANSWER A___chart is a graphical representation of a troubleshooting procedure for a particular unit. Overload - ANSWER A___is an electrical device that protects a load from a high ampere draw by breaking a set of contacts. Current sensing lockout relay - ANSWER A___is an overload device that senses the current draw of the compressor through the lockout loop(LL). Bearing - ANSWER A___is the part of a rotating electric device that allows free movement. Separator - ANSWER Ball bearings are designed with an inner and an outer ring, which enclose the balls by use of a___. Thermostat - ANSWER The basic control cycle of a gas heating appliance is initiated when a switch, usually a___, closes to call for heat. 125 - ANSWER The chemical composition of contacts is such that they operate at cooltemperatures of up to___%of their current carrying capacity. Energized - ANSWER The contacts of a contactor make a complete circuit when the contactor is___, allowing voltage to flow to the controlled load. Open - ANSWER The device must be energized to check normally___contacts. Pictorial wiring - ANSWER The___ ___ diagram is a picture of the control panel and is sometimes called a component arrangement diagram. Open type - ANSWER ___electric motors will fail in three different areas; windings, centrifugal switch, and bearings. Contr