The following statements are all correct EXCEPT ________

A) When the PCM detects detonation using the knock sensor, it will retard ignition timing.
B) The knock sensor may be ignored by the PCM at idle.
C) Knock sensors require voltage input from the PCM to function properly.
D) Ignition timing may be either ATDC, at TDC, or BTDC.


C

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____________________ milking parlors are arranged so that cows enter onto a turning platform that

rotates slowly.

Fill in the blank(s) with the appropriate word(s).

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If your car engine has an efficiency of 25%, and if gasoline costs $3.00 per gallon, how much of your money (per gallon) goes toward heating the atmosphere?

a. $2.00 c. $2.75 b. $2.25 d. $2.95

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Which agency is responsible for approving new herbicides?

a. EPA c. ARS b. APHIS d. NRCS

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Combustion air for gas appliances should be

A) Recycled by piping the vent gasses back into the combustion air intake B) 10 cubic feet of combustion air per 1000 BTU of firing rate C) 14 to 15 cubic feet of combustion air per 1000 BTU of firing rate D) 1 cubic foot of combustion air for every cubic foot of gas

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