How and why could a vehicle fail an OBD test but pass a tailpipe emissions test?
What will be an ideal response?
With OBD II systems, it is possible for a vehicle to pass a tailpipe emissions test but fail an OBD test. This is because OBD II systems monitor sensor and system operations that may detect a component malfunction before it leads to excessive emission levels.
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A) Too large B) Too small C) OK D) Not enough information to answer the question
The ____________________ of a relay or contactor must make good direct contact when energized for the device to function properly.
Fill in the blank(s) with the appropriate word(s).
Within species of animals there are very few distinguishing differences
Indicate whether the statement is true or false
An analog signal is infinitely variable.
Answer the following statement true (T) or false (F)