.png){kind=logo}
NATE CorE ExAm | ExpErT VErifiEd STudy GuidE wiTh ACTuAl QuESTioNS & CorrECT ANSwErS
◉ The greater the difference in temperature between wet bulb and dry bulb,
the__ Answer: Lower the % RH
◉ A stud is? Answer: A vertical structural member
◉ A stud__ Answer: •Is typically placed in 16" center in residential
construction •Attaches the top plate and to the sole plate
◉ Material that covers the weather side of the rafters is? Answer: Sheathing
◉ A pier and beam foundation would be used for? Answer: A house built over
a crawlspace
◉ A differential pressure gauge can? Answer: •Read differential pressure 1 / 3
•Read pressure relative to the atmosphere
◉ The "tool" Necessary to determine proper evacuation of a refrigeration
system is? Answer: •A compound cage set
•A manifold gauge set
◉ 14.7 psia is equal to? Answer: 0 psig
◉ What is the sum of the angle of a right triangle? Answer: 180°
◉ 7 is what percent of 9? Answer: 77.77%
*Solution:
7/9×100 = 77.77
◉ Electricity is: Answer: The flow of electrons through a conductor
◉ Voltage in and energized electrical circuit can be thought of as what?
Answer: Electrical Pressure
◉ How is current flow measured in an electrical circuit? Answer: With an
ammeter 2 / 3
◉ A milliampere is? Answer: 1/1000 of an ampere
◉ What happens when current flows through a conductor? Answer: A
magnetic field will be established around that conductor
◉ If the conductor is moved through a field of magnetic flux__ Answer: A
Current will be induced in that conductor
◉ In an induction transformer, the winding that receives the source voltage is
called the? Answer: Primary winding
◉ If the primary voltage on a step down transformer is 110 V and there is a 5:1 turns ratio, what is the secondary voltage? Answer: 22 V
*Solution:
110/5 = 22 volts
◉ Give them a domestic hot water heater with 4500/4500 watt elements and non-simultaneous operation. What is the anticipated amp draw on an
energized element one 220 V is red at that element? Answer: 20.45 Amps
*Solution:
- / 3
.png)