Nate Core Bundle Compilation Graded A+

What kind of heat transfer does not include solids, or fluids - Answer: Radiation Capillary tubing should be only cut to length using - Answer: Triangular or knife edge file Before beginning any electrical check out procedure, what step should be taken after equipment is disconnected, or bre...

_______ registers accomplishes the mixing of the air, the _______grille does not. A. Supply, Return B. Return, Supply C. Dampers, Supply D. Dampers, Return - Answer: A. Supply, Return On New construction projects, the indoor section should be in the _____ mode during the finishing phases ...

buld A particular right triangle has two equal sides. This is a _______ degree triangle - Answer: 45 T or F? The following is proper for the care of hand tools: clean and wipe them regularly. - Answer: True What is a method of heat transfer that does not require fluids or solids? - Answe...

What electro-mechanical control would you use on a cap tube or automatic expansion valve system to maintain the space temperature? - Answer: 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? - Answ...

Calculate the air volume based upon these conditions: 90,000 BTUH output Return air temperature: 70F Supply air temperature: 110F a. 1,158 CFM b. 1,500 CFM c. 1,800 CFM d. 2,083 CFM - Answer: d (2,083 CFM) When measuring CFM using temperature rise method, the furnace blower motor spee...

What method of heat transfer does not require fluid or solids? - Answer: Radiation Capillary tubing should only be cut to length using a - Answer: Triangular or knife edge file Before beginning any electrical check out procedure what step must always be taken after the equipment disconnect o...

Refrigerant vapors in high concentrations should not be inhaled since they - Answer: May cause heart irregularites or unconsciousness What diagrams would you use to find the physical location of the low voltage connection terminals in the unit? - Answer: Pictorial diagram The input side of a...

What method of heat transfer does not require fluids or solids ? - Answer: Radiation - movement of heat through heat waves Capillary tubing should only be cut to length using a : - Answer: A triangular or knife-edge file Before beginning any electrical checkout procedure, what steps must be ...

What type of wrench has a wheel mechanism that allows a jaw to open and close? - Answer: Adjustable wrench What should a claw hammer be used for? - Answer: Carpentry work or removing nails What is a reamer blade used for? - Answer: Removing burrs from the inside of tubing What type of pl...

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 - Answer: B: Cooling mode Heat pumps can provide both heating in the winter and cooling in the summer. In which mode is the he...

A fuse is used in an electrical circuit to - Answer: Protect the circuit wires from an overcurrent condition How are fuses rated - Answer: In amps with a maximum voltage rating What will an ohmmeter measure when testing an open fuse - Answer: Infinite resistance What type of sensing elem...

a. Air movement b. Humidity c. Temperature d. All of the above - Answer: 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 ...

what type of meter is most appropriate when a tech must determine voltage? - Answer: voltmeter temp at which moisture begins to condense on objects? - Answer: dew point btu's equivalent to 1 watt hour A. 3.418 B. 3.413 C. 3.213 D. 4.314 - Answer: 3.413 btu electrical test meter that...

What are the five basic components to any schematic? - 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 abbreviatio...

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 - Answer: A: Liquid flood-back to the compressor ...