All of the following statements about the EGR valve are true, EXCEPT:
A. the EGR valve creates a controlled vacuum leak between the intake and exhaust manifolds
B. an EGR valve that is stuck closed will cause high NOX emissions
C. the vacuum to many vacuum actuated EGR valves is controlled by a solenoid
D. an EGR valve that is stuck in the open position will cause detonation
Answer: D
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A defective blower motor draws more current than a good motor because __________
A) The speed of the motor increases B) The CEMF decreases C) The airflow slows down, which decreases the cooling of the motor D) Both A and C
A good way to check the condition of the grinding wheel on a bench grinder is to _____
a. exceed the maximum rpm rating b. hold the tool rest against the wheel c. induce vibration and monitor the wheel?s response d. perform a ring test on the wheel
In all N-channel FET's, the current into the source equals the current leaving the ________
A) source B) collector C) drain D) emitter
Multimeters _____.
A. can only check the starter circuit B. for automobiles should be high impedance C. all require manual ranging D. of high impedance are typically rated less than 10 megaohms