TOPGRADE

Nate Practice 82 Exam Questions Correctly Answered. You give a customer an invoice for $140. They pay you $150 in cash. What do you do next? a. Thank them and leave. b. Make sure they intended to give you the extra $10 and then thank them. c. Refuse the tip. d. Put the money in your pocket and leave - CORRECT ANSWER Make sure they intended to give you the extra $10 and then thank them. Why is spelling important when filling out an invoice? a. Misspelled words make you look unp...

NATE AC Service Study Guide Exam. A technician has determined a supply in a flexible duct system is leaking. What should be checked? - CORRECT ANSWER All connections inner and outer layers. Electronic air cleaners can operate with internal voltages as high as? - CORRECT ANSWER 5000v Why do some electromechanical type thermostats require connections to both the hot side and common side of the low voltage transfromer - CORRECT ANSWER Display lights must be powered using both sides of...

NATE Core Final Exam Practice Test. Class A - CORRECT ANSWER Ordinary Extinguisher Class B - CORRECT ANSWER Liquid Extinguisher Class C - CORRECT ANSWER Electrical Extinguisher Asphyxiation causes what? - CORRECT ANSWER Nausea, Dizziness, Heart Irregularities, and Unconciousness Ladder must be at what dimensions in relation to a house? - CORRECT ANSWER 4 ft for every 1 ft, 3 ft above the top of the roof. What different amounts does Copper Tubing come in? - CORRECT ANSWER...

NATE Gas Heating Written Study Exam. Since 1992, the United States Department of Energy has required that all furnaces sold and installed from that date on must have an AFUE of no less than: A: 70% B: 75% C: 78% D: 80% - CORRECT ANSWER C: 78% Many pre-1992 furnaces have efficiencies around _______. A: 10% B: 40% C: 60% D: 80% - CORRECT ANSWER C: 60% Today, furnaces with AFUE ratings greater than _____ are available. A: 85% B: 90% C: 100% ...

HVACR UNIT 2 EXAM QUESTIONS CORRECTLY ANSWERED. 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 - CORRECT ANSWER Refrigerant handling and refrigerant management Codes are different than industry standards because codes are - CORRECT ANSWER Required by Law Customers often judge the ability of an HVACR technician by - CORRECT ANSWER His Apperance,...

NATE CORE STUDY GUIDE EXAM CORRECTLY ANSWERED. 1. In my opinion, the new thermostat design is a change for better. - CORRECT ANSWER 1. An improvemnet 2. If you bought four thermostats for $91.12, what was the price of each Tatar? - CORRECT ANSWER 2. $22.78 3. The standard atmospheric condition (Sea Level) for water to boil at 212 °F are: - CORRECT ANSWER 3. Atmospheric pressure 14.696 psi, temperature 70 °F 4. A BTU is defined as the amount of heat that must be added to one __...

Nate Installation Written Exam Questions Correctly Answered. What precaution must you take when installing a dual-fuel split system? A. The control system must not allow the heat pump and furnace to operate at the same time during a normal heating cycle. B. The high-limit switch on the heat pump must be replaced with one that has a lower temperature setting C. The high-limit switch on the heat pump must be replaced with one that has a higher temperature setting. D. The limit con...

2. NATE Industry Competency Exam: Air Conditioning Advanced Study Guide. After a vacuum pump has been used, a continuous pressure rise in the system most likely indicates the: a. Presence of moisture. b. Existence of a leak. c. Presence of residual refrigerant. d. Presence of non-condensable gasses. - CORRECT ANSWER B After a vacuum has been pulled to 500 microns, a pressure rise in a system, followed by a leveling off at 1500 microns, most likely indicates the: a. Existence of...

NATE Core Soft Skills Study Guide Test. The ability to utilize all types of communication skills is _________ to the HVACR technician - CORRECT ANSWER Very important It is important to be __________ in filling out service orders so that office staff, other technicians, and customers will know what work you completed on the job. - CORRECT ANSWER Clear, concise, complete When explaining to a customer that you have topped off the system charge, which term is most important when describ...

NATE Air-to-Air Heat Pump Written Exam Questions & Answers. A good evacuation of a refrigerant circuit to remove non-condensable will help ensure: - CORRECT ANSWER Higher efficiency and Capacity. A condensing unit should be mounted on a slab that is level to allow: - CORRECT ANSWER Accumulated water to evenly run from the cabin. Low airflow over a residential split system air conditioning evaporator can cause: - CORRECT ANSWER Liquid flood-back to the compressor. Which of the fo...

Nate Final Exam Questions Correctly Answered. What method of heat transfer does not require fluids or solids ? - CORRECT ANSWER Radiation - movement of heat through heat waves Capillary tubing should only be cut to length using a : - CORRECT ANSWER A triangular or knife-edge file Before beginning any electrical checkout procedure, what steps must be taken after the equipment disconnect or circuit breaker has been turned off? - CORRECT ANSWER Check for the presence of voltage Whe...

NATE Heat Study Guide Exam. R-22 vapor line diameters and lengths are typically specified for a vapor pressure drop that does not exceed what value? - CORRECT ANSWER d. 6-7 psi or 6 degrees F Which of the following is a primary consideration when bending soft copper tubing into a bend of any radius? - CORRECT ANSWER the cross-sectional area of the tube must not be significantly reduced The water that results from a defrost cycle of an air to air heat pump (run off) must drain off...

NATE ICE EXAM QUESTIONS CORRECTLY ANSWERED. After a vacuum pump has been used, a continuous pressure rise in the system most likely indicates - CORRECT ANSWER existence of a leak after a vacuum has been pulled to 500 microns, a pressure rise in the system, followed by a leveling-off at 1500 microns, most likely indicates the - CORRECT ANSWER presence of a moisture on initial start up of an air conditioning system, the temperature drop measured across the evaporator coil exceeds manu...

NATE: Air Distribution Troubleshooting Study Guide Test. An air conditioning service call is made and the complaint is that the system does not seem to be cooling properly. It is noticed that the suction line and the evaporator coil are frosted up. The filter is checked and it is clean. It is suspected that the indoor blower is not operating at the proper speed. Technician A says that the speed can be verified with a strobe tachometer to be sure that the rpms are as written on the nameplate...

Nate's Chapter 5 Study Guide Exam Correctly Answered. astrophysics - CORRECT ANSWER the branch of astronomy concerned with the physical and chemical properties of celestial bodies anomoly - CORRECT ANSWER something different from the norm succession - CORRECT ANSWER (ecology) the gradual and orderly process of change in an ecosystem brought about by the progressive replacement of one community by another until a stable climax is established theorem - CORRECT ANSWER A stateme...

NATE GAS HEAT STUDY GUIDE TEST. 3/8 to ½ inch of the end of the thermocouple - CORRECT ANSWER Should be enveloped by the pilot flame A control string is defined as two or more switch contacts connected in a circuit, or set of circuits, to control a load. In order to troubleshoot a load controlled by a control string, the technician must first: - CORRECT ANSWER Check for proper voltage applied across the load. A customer complains the unit is "blowing cold air". The technician...

Nate Gas Furnace Practice Exam Questions & Answers. what precautions if any, must be taken when installing a gas furnace on a wood platform in an attic? - CORRECT ANSWER use a zero clearance furnace or add a non combustible base with a non direct vented furnace located in a basement what are the requirements for the space to qualify as an unconditioned space? - CORRECT ANSWER atleast 50 ft of air volume for every 1000 btu/h capacities of all combustion appliances in the space the ga...

NATE CHAPTER 7 REVIEW PRACTICE STUDY TEST. switch - Device that interrupts power to the load Loads - Devices that consume power and convert it to some other form of energy, such as motion or heat, are ____.

Nate Heat Pump Final Exam Study Guide Test. Vapor line diameter and length should be sized for a pressure drop not to exceed - CORRECT ANSWER 2-3 PSI or 2 degrees Fahrenheit While bending soft copper tubing - CORRECT ANSWER The cross sectional area of the tubing must not be significantly reduced Improperly draining heat pump defrost runoff - CORRECT ANSWER Will cause ice buildup and capacity loss Package unit curb gaskets - CORRECT ANSWER Reduce sound transmission and prevent w...

Nate Heat Pump Exam Questions & Answers. R-22 vapor line diameters and lengths are typically specified for a - CORRECT ANSWER Vapor pressure drop that does not exceed 6 - 7 psi or 6°F The primary purpose of using flux when soldering copper or brass parts is to - CORRECT ANSWER Prevent oxidation The water that results from a defrost cycle of an air to air heat pump (runoff) must - CORRECT ANSWER Drain off and away from the outdoor coil to prevent excessive ice can build up on the b...