NATE

Low airflow over a residential split system air conditioning evaporator can cause A: Liquid flood-back to the compressor B: A decrease in compression ratio C: An increase in suction line superheat D: Oil logging in the evaporator A: Liquid flood-back to the compressor Which of the following is the correct sequence of work? A: Attach gauge manifold, recover refrigerant, replace filter core, evacuate the system, recharge the system. B: Recover refrigerant, evacuate the system...

Charging a heat pump with refrigerant is best accomplished in the _______ mode. A: Heating mode B: Cooling mode C: Defrost mode D: Emergency heating mode B: Cooling mode Heat pumps can provide both heating in the winter and cooling in the summer. In which mode is the heat pump more efficient? A: Heating mode B: Cooling mode

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% C: 78% Many pre-1992 furnaces have efficiencies around _______. A: 10% B: 40%

What precautions are required when mounting any gas furnace on a wood platform in an attic? None The gas control valve may be damaged if exposed to an inlet pressure above what? 14 inch W.C. How many elbows and joints should a vent connector have? As few as possible to reduce resistance of flue gases. Under what conditions, if any may the technician route the exhaust of the furnace into the exhaust vent of the water heater: Under no conditions may you use the water heater exhaust v...

Generally, vibration eliminators in piping should be installed: A: At a 45 degree angle B: At a 90 degree angle C: Perpendicular to the compressor crankshaft D: Parallel to the compressor crankshaft D: Parallel to the compressor crankshaft If you purchased ten filter-driers for $100.00, what was the price of each filter-drier? A: $100.00 B: $10.00

Which of the following factors affects a customer's level of comfort? a. Air movement b. Humidity c. Temperature d. All of the above d (All of the above: air movement, humidity, temperature) A cooling load calculation estimates the sensible heat gain of a structure. The maximum sensible capacity of a cooling-only system should be within ____% of this calculated value. a. ±10% b. +10% c. +15% d. +30% c (+15%)

Class A Ordinary Extinguisher Class B Liquid Extinguisher Class C Electrical Extinguisher Asphyxiation causes what? Nausea, Dizziness, Heart Irregularities, and Unconciousness Ladder must be at what dimensions in relation to a house? 4 ft for every 1 ft, 3 ft above the top of the roof. What different amounts does Copper Tubing come in? 25, 50, 100 Soft drawn copper tubing means what? Copper tubing that is on a roll

Ch. 1-1 The ability to utilize all types of communication skills is ________ to the HVACR technician. a) not as important as "hands-on" technical skills b) somewhat important c) unimportant d) very important d) very important Ch. 1-2 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. a) clear b) complete c) concise d) all of the above d) all of the above Ch. 1-3 When ex...

The Fahrenheit scale is based on boiling water at sea level at what temperature? A: 459 degrees B: 212 degrees C: 180 degrees D: 100 degrees B: 212 degrees Zero pounds gauge corresponds on the absolute scale to: A: 144 B: 212

The Fahrenheit scale is based on boiling water at sea level at what temperature? A: 459 degrees B: 212 degrees C: 180 degrees D: 100 degrees B: 212 degrees Zero pounds gauge corresponds on the absolute scale to: A: 144 B: 212

With the condensing pressure and compressor speed remaining constant, a decrease in suction pressure will cause a(n): a. Decrease in compressor capacity and decrease in current. b. Increase in compressor capacity and decrease in current. c. Increase in compressor capacity and increase in current. d. Decrease in compressor capacity and increase in current. D An indication of non-condensable gas in a refrigeration system is significantly: a. Lower-than-normal suction pressures. b. hi...

NATE Core Questions and Answers 2023/24 Liberty University NATE Core Questions and Answers 2023/24 Liberty University

In the past, the Joint Commission standards focused on promoting the use of a facility approved abbreviation list to be used by hospital care providers. With the advent of the Commission's national patient safety goals, the focus has shifted to use of prohibited or "dangerous" abbreviations A risk manager needs to locate a full report of a patient's fall from his bed, including witness reports and probable reasons for the fall. She would most likely find this information in the inci...

A core data set developed by ASTM to communicate a patient's past and current health information as the patient transitions from one care setting to another is Continuity of Care Record A critical early step in designing an EHR is to develop a(n) ___________ in which the characteristics of each data element are defined Data dictionary A health information technician is responsible for designing a data collection form to collect data on patients in an acute-care hospital. The fir...

(1) A critical early step in designing an EHR is to develop a(n) ________in which the characteristics of each data element are defined. A) Accreditation manual B) Core content C) Continuity of care record D) Data dictionary D) Data dictionary (2) Once hospital discharge abstract systems were developed and their ability to provide comparative data to hospitals was established, it became necessary to develop: A) Data sets B) Data elements C) Electronic data interchange D) Bills...

What electro-mechanical control would you use on a cap tube or automatic expansion valve system to maintain the space temperature? C: A thermostatic control Open motors are designed to operate at a given temperature rise as indicated on the motor nameplate. What does this mean? A: indicates the temp. rise over the surrounding air of a motor when the motor is operating at full-load conditions A voltmeter is connected into a circuit in which of the following ways? B: Parallel ...

A judgment An opinion is Easy to use Which of the following is a future of a product or service A truth A fact is Saves time Which of the following is a benefit of a product or service DOT Which of the following agencies has jurisdiction over the shipping and labeling of refrigerant cylinders? The flow of electrons through a conductor Electricity is Electrical pressure Voltage in an energized electrical circuit can be thought of as A curren...

An air conditioning technician is working in the basement of a large B37public building. The technician notices several unsafe and dangerous conditions. Of the following conditions that are noticed, which is the most dangerous and should be reported immediately? A: Gas leaking from a cracked pipe B: An open sewer drain connection C: The basement is unlighted D: None of these are the technician's business A: Gas leaking from a cracked pipe A service technician is returning ho...

what type of meter is most appropriate when a tech must determine voltage? voltmeter temp at which moisture begins to condense on objects? dew point btu's equivalent to 1 watt hour A. 3.418 B. 3.413 C. 3.213 D. 4.314 3.413 btu electrical test meter that test volts, ohms and current A. multimeter B. ohmeter C. monometer D. trimeter multimeter when climbing down a ladder workers must use 2 hands single phase load is drawing 4.5 amps in a 230V circui...