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Nate Core Bundle Compilation Graded A+
Nate Core Bundle Compilation Graded A+
[Show more]Nate Core Bundle Compilation Graded A+
[Show more]A system is supplied from the factory with a charge of 5 pounds 10 ounces for a 15 foot line set. The line set is 25 feet long. The manufacturer's instruction sheet specifies 0.6 ounces of refrigeration to be added for each added foot of refrigerant line set length. What is the total refrigerant ch...
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Add to cartA system is supplied from the factory with a charge of 5 pounds 10 ounces for a 15 foot line set. The line set is 25 feet long. The manufacturer's instruction sheet specifies 0.6 ounces of refrigeration to be added for each added foot of refrigerant line set length. What is the total refrigerant ch...

Nate - Answer: He will surpass all others 
 
Francis - Answer: Nate's first best friend 
 
Teddy - Answer: Nate's second friend 
 
Gina - Answer: Nate ultimate enemy 
 
Artur - Answer: Nate likes him and hates him 
 
Jenny - Answer: Nate's crush 
 
Mrs. Godfrey - Answer: Social Studie...
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Nate - Answer: He will surpass all others 
 
Francis - Answer: Nate's first best friend 
 
Teddy - Answer: Nate's second friend 
 
Gina - Answer: Nate ultimate enemy 
 
Artur - Answer: Nate likes him and hates him 
 
Jenny - Answer: Nate's crush 
 
Mrs. Godfrey - Answer: Social Studie...

A technician has determined a supply in a flexible duct system is leaking. What should be checked? - Answer: All connections inner and outer layers. 
 
Electronic air cleaners can operate with internal voltages as high as? - Answer: 5000v 
 
Why do some electromechanical type thermostats requ...
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A technician has determined a supply in a flexible duct system is leaking. What should be checked? - Answer: All connections inner and outer layers. 
 
Electronic air cleaners can operate with internal voltages as high as? - Answer: 5000v 
 
Why do some electromechanical type thermostats requ...
relative humidity - Answer: A sling psychrometer can measure wet bulb and dry bulb temperature. These measurements are then used to compute? 
 
a. Comfort index. 
b. System temperature differential. 
c. Relative humidity. 
d. Sub cooling 
 
Sling psychrometers. - Answer: Because they are very accu...
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Add to cartrelative humidity - Answer: A sling psychrometer can measure wet bulb and dry bulb temperature. These measurements are then used to compute? 
 
a. Comfort index. 
b. System temperature differential. 
c. Relative humidity. 
d. Sub cooling 
 
Sling psychrometers. - Answer: Because they are very accu...
What method of heat transfer does not require fluids or solids? - Answer: Radiation (heat waves) 
 
Capillary tubing should only be cut to length using a - Answer: triangular knife edge file 
 
Before beginning any electrical checkout procedure, what step must always be taken after the equipment d...
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Add to cartWhat method of heat transfer does not require fluids or solids? - Answer: Radiation (heat waves) 
 
Capillary tubing should only be cut to length using a - Answer: triangular knife edge file 
 
Before beginning any electrical checkout procedure, what step must always be taken after the equipment d...
formula to convert celsius to fahrenheit - Answer: F = (1.8 x C) + 32 
 
formula to convert fahrenheit to celsius - Answer: C = .56 (F - 32) 
 
specific heat - Answer: the amount of heat required to raise 1 lb of a substance 1 degree fahrenheit 
 
sensible heat - Answer: Is the heat that came be...
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Add to cartformula to convert celsius to fahrenheit - Answer: F = (1.8 x C) + 32 
 
formula to convert fahrenheit to celsius - Answer: C = .56 (F - 32) 
 
specific heat - Answer: the amount of heat required to raise 1 lb of a substance 1 degree fahrenheit 
 
sensible heat - Answer: Is the heat that came be...
When the price of a product increases, there is 
a. a shift in demand. 
b. movement along the demand curve. 
c. a change in elasticity of demand. 
d. no effect on quantity demanded. - Answer: b 
 
On the demand curve, price and quantity demanded are 
a. inversely related. 
b. directly related. 
C. ...
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Add to cartWhen the price of a product increases, there is 
a. a shift in demand. 
b. movement along the demand curve. 
c. a change in elasticity of demand. 
d. no effect on quantity demanded. - Answer: b 
 
On the demand curve, price and quantity demanded are 
a. inversely related. 
b. directly related. 
C. ...
which of the following causes objectionable in Duct Systems? - Answer: Excessive Velocity 
 
Before beginning any electrical checkout procedure, what step must always be taken after the equipment disconnect or circuit breaker has been turned off? - Answer: Check For the presence of voltage 
 
whic...
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Add to cartwhich of the following causes objectionable in Duct Systems? - Answer: Excessive Velocity 
 
Before beginning any electrical checkout procedure, what step must always be taken after the equipment disconnect or circuit breaker has been turned off? - Answer: Check For the presence of voltage 
 
whic...
A particular cleaning solution is made by mixing a liquid cleaning concentrate with water. The instructions specify mixing 1 quart of concentrate with 14 quarts of water. A technician wishes to prepare 60 quarts of mixed cleaning solution. How many quarts of cleaning concentrate will be needed? 
 
a...
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Add to cartA particular cleaning solution is made by mixing a liquid cleaning concentrate with water. The instructions specify mixing 1 quart of concentrate with 14 quarts of water. A technician wishes to prepare 60 quarts of mixed cleaning solution. How many quarts of cleaning concentrate will be needed? 
 
a...
A compressor does not run, although the condenser fan is operating. Reading the compressor windings, the measured resistance between R to S is 5 ohms, R to C is open, and S to C is open. The problem is due to: - Answer: internal overload being open. 
 
A compressor with tight bearings will cause th...
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Add to cartA compressor does not run, although the condenser fan is operating. Reading the compressor windings, the measured resistance between R to S is 5 ohms, R to C is open, and S to C is open. The problem is due to: - Answer: internal overload being open. 
 
A compressor with tight bearings will cause th...
After a vacuum pump has been used, a continuous pressure rise in the system most likely indicates - 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 - Answer: presence ...
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Add to cartAfter a vacuum pump has been used, a continuous pressure rise in the system most likely indicates - 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 - Answer: presence ...
A strobe tachometer is used to measure - Answer: Blower speed 
 
A strobe tachometer's measurements are in - Answer: RPM 
 
A Pitot-tube has the capability of measuring - Answer: Velocity and static pressure 
 
The holes on the side of a Pitot-tube are used to measure - Answer: Static pressure ...
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Add to cartA strobe tachometer is used to measure - Answer: Blower speed 
 
A strobe tachometer's measurements are in - Answer: RPM 
 
A Pitot-tube has the capability of measuring - Answer: Velocity and static pressure 
 
The holes on the side of a Pitot-tube are used to measure - Answer: Static pressure ...
The following expresses the difference between a feature and a benefit: - Answer: -A feature is a special characteristic of a product 
-A benefit is the value the customer receives from using the feature. 
 
The temperature most often used by customers when discussing human comfort is: - Answer: -...
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Add to cartThe following expresses the difference between a feature and a benefit: - Answer: -A feature is a special characteristic of a product 
-A benefit is the value the customer receives from using the feature. 
 
The temperature most often used by customers when discussing human comfort is: - Answer: -...
A condensing unit should be mounted on a slab that is level to: 
 
A: Allow any accumulated water to evenly run out of the cabinet 
 
B: Increase airflow through the fin area 
 
C: Prevent the unit from tipping over 
 
D: Make certain any top discharge air blows straight up - Answer: A 
 
A simple ...
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Add to cartA condensing unit should be mounted on a slab that is level to: 
 
A: Allow any accumulated water to evenly run out of the cabinet 
 
B: Increase airflow through the fin area 
 
C: Prevent the unit from tipping over 
 
D: Make certain any top discharge air blows straight up - Answer: A 
 
A simple ...
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 - Answer: d (very important) 
 
It is important to be ____ in filling out service orders so tha...
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Add to cartThe 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 - Answer: d (very important) 
 
It is important to be ____ in filling out service orders so tha...
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...
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Add to cartWhat 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 ...
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Add to cart_______ 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...
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Add to cartbuld 
 
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...
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Add to cartWhat 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...
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Add to cartCalculate 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...
Preview 2 out of 5 pages
Add to cartWhat 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...
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Add to cartRefrigerant 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 ...
Preview 2 out of 6 pages
Add to cartWhat 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...
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Add to cartWhat 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...
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Add to cartCharging 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...
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Add to cartA 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 ...
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Add to carta. 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...
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Add to cartwhat 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...
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Add to cartWhat 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 
...
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Add to cartLow 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 
...
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