UA Local 525 HVAC/R Assessment (Local 32)

If a circuit is constructed to allow the electrons to follow only one possible path, the circuit is said to be a:

• Open Circuit

• Series Circuit

• Series-Parrellel Circuit

• Closed Circuit

In HVAC/R, the most desirable refrigerant would have which properties?

• Nontoxic and Corrosive
• Toxic and Inefficient
• Potentially campaigners the Effect of Global Warming
• Energy efficient and Nonflammable

What is the function of a condenser in an HVAC/R system?

• To absorb heat from the environment
• To release heat into the environment
• To circulate the refrigerant
• To control the temperature of the refrigerant

What is the purpose of a compressor in an HVAC/R system?

• To circulate the air in the room
• To pump refrigerant through the system
• To control the temperature of the refrigerant
• To release heat into the environment

What is the role of an evaporator in an HVAC/R system?

• To control the temperature of the refrigerant
• To release heat into the environment
• To absorb heat from the environment
• To circulate the air in the room

What should the resistance be across a clean, and tight terminal?

• 1 ohm
• Close to infinity
• Close to zero
• 10 ohms

Which of the following is the largest conductor?

• 12 gauge

• 8 gauge

• 10 gauge

• 14 gauge

With three phase alternating current, the three legs are?

• Have no fixed relationship to each other

• cancel each other out

• 60 cycles apart

• Out of phase 120 degrees

Ohms Law for alternating current can also be expressed as?

• V = I X R

• V = I X O

• R = V X I

• I = V X R

If the supply voltage is 120.0 VAC and the amp draw is 10.0 Amps, the resistance of the circuit is?

• 10.0 Ohms

• 12.0 ohms

• 240.0 Ohms

• 1200.0 Ohms