Technician A says oxides of nitrogen are changed to carbon dioxide and water by a three-way catalytic converter. Technician B says hydrocarbons and carbon monoxide are changed to carbon dioxide and water by a two-way catalyst. Who is correct?
A. Technician A
B. Technician B
C. Both A and B
D. Neither A nor B
Answer: B
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Which type of relief valve used on a turbocharged engine is noisy?
A) Bypass valve B) Dump valve C) Blow Off Valve (BOV) D) Both B and C
What makes a battery "low maintenance" or "maintenance free"?
A) The material that is used to construct the grids B) The battery plates are smaller, making more room for additional electrolytes. C) The plates are constructed of different metals. D) The electrolyte is hydrochloric acid solution.
Never use a circular saw that does not have an upper blade guard because the _____
a. trigger lock will not work properly b. saw will not cut cleanly c. guard protects you from touching the blade d. saw kerf will be too wide
Electronic switching devices like Hall-effect sensors completely eliminate the need for ________.
A. ignition coils B. pulse generators C. breaker points D. reluctors