The expansion device in a cooling system _____
A) raises the temperature of the refrigerant
B) acts as a heat exchanger
C) provides a pressure drop
D) raises the pressure of the refrigerant
Answer: C
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What happens when a catalyst is added to a chemical reaction?
A) A new substance is formed B) A physical reaction occurs C) Speed of the reaction is decreased D) Speed of the reaction is increased
? Identify and state the historical significance of the Freeport question.
What will be an ideal response?
Technician A says that measuring SAI and included angle can help in diagnosing poor cradle alignment. Technician B says that alignment angles can often reveal bent suspension or steering components. Which technician is correct?
A) Technician A only B) Technician B only C) Both technicians A and B D) Neither technician A nor B
When brazing larger joints, _____
a. use only a single orifice torch tip b. use a soldering flux to make it easier to reach the needed temperature c. small sections of the joint can be heated and brazed d. a 95% tin and 5% antimony solder is the best choice