Hvacr unit - Study guides, Class notes & Summaries

HVACR UNIT 12 EXAM QUESTIONS AND ANSWERS #10.

HVACR UNIT 2 STUDY GUIDE, Questions & Answers. 100% Accurate. Verified. Every HVACR technician must become certified under the EPA Section 608 regulations. This certification is to ensure the technician understands and complies with the regulations regarding - -Refrigerant handling and refrigerant management Codes are different than industry standards because codes are - -Required by Law Customers often judge the ability of an HVACR technician by - -His Apperance, Neatness of vehicle,...

In HVACR terms, what is a feature? - correct answer A special characteristic of a product. In HVACR terms, what is a benefit? - correct answer The value the customer receives from using the feature What type of temperature is often used by customers when discussing human comfort? - correct answer Dry bulb What is an honest person? - correct answer A person who is free from fraud or deception, credible, and is marked with integrity. An honest person is fair in their dealings with other p...

HVACR CONTROLS UNIT 13 TEST ..

HVACR Unit 13 – Compressors Questions and Answers List the major types of compressors by mechanical design. Rotary, reciprocating, scroll, screw, centrifugal Explain the difference between a positive-displacement compressor and nonpositive-displacement compressor. Positive displacement - refrigerant is replaced with physical unit like a piston to increase pressure and temperature. Non-positive displacement - the refrigerant is not replaced; it is thrown outward where centrifugal for...

(I) represents in equation - "intensity" 12-gauge (AWG)= 20 amps is recommended for - residential receptacle outlets. 14-gauge (AWG)= 15 amps wire be suitable for - lighting circuits. a breaker rated for 15 amps is installed into a 30 amp circuit - not enough current to flow a breaker that is rated at 30 amps installed into a 15 amp circuit - would allow too much current flow. a closed circuit is - a circuit with complete path and allows the load to function. A kilowatt is equal to - 1,...

A solution used as a secondary refrigerant in chillers consisting of water and a chemical which lowers the water's freezing point is called: - Brine. Air-conditioning tube-and-fin coils are commonly available as: - Slab coils, slant coils, "A" coils, and "N" coils. An evaporator in which refrigerant enters as a saturated liquid vapor mix and leaves as a superheated vapor is a: - Direct expansion evaporator. An evaporator that covers the coils being cooled with liquid refrigerant is a:...

Nate core exam study guide with Complete Solutions 100% verified What are the five basic components to any schematic? - Correct Answer 1. A power supply 2. A path for the power 3. A load or component that operates from the power. 4. A switch or component that interrupts the power to the load. 5. A legend or key that explains what the various symbols and abbreviations used in the schematic mean. What are the three basic types of wiring diagrams used in the HVACR trade? - Correct Answer 1....

What are the five basic components to any schematic? correct answers 1. A power supply 2. A path for the power 3. A load or component that operates from the power. 4. A switch or component that interrupts the power to the load. 5. A legend or key that explains what the various symbols and abbreviations used in the schematic mean. What are the three basic types of wiring diagrams used in the HVACR trade? correct answers 1. The ladder diagram 2. The pictorial diagram 3. The installation d...