Which of these tools is needed when diagnosing an electronic throttle system?
A) Pocket code reader B) Vacuum gauge C) Spark tester D) Scan tool
D
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The formula for inductive reactance is _____.
a. XL = 1 ÷ 2?fL b. XL = 2 ÷ ?fL c. XL = 2? ÷ fL d. XL = 2?fL
Subassemblies can have their own subassemblies.
Answer the following statement true (T) or false (F)
What does it mean for a condenser and evaporator coil to be an "AHRI Match"?
A) AHRI was paid to advertize those particular components. B) AHRI manufactured the components. C) AHRI has tested the components and certified that they work correctly together. D) Both components were made by the same manufacturer.
What is the purpose of excess air in furnace combustion?
A) Excess air improves the draft efficiency by raising the combustion gas temperature B) Excess air is used for creating a high fire second stage of combustion C) Excess air insures that the heat exchanger does not overheat D) Excess air insures that all the gas is burned by making sure there is plenty of oxygen available.