What does the post, or downstream, oxygen sensor (HO2S) measure?

A) Amount of H2O behind the catalytic converter
B) Amount of H2O in front of the catalytic converter
C) Amount of oxygen in front of the catalytic converter
D) Amount of oxygen behind the catalytic converter


D

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Technician A says steering pull when braking may be caused by unequal SAI angles on the front suspension. Technician B says front tire tread wear may be caused by unequal SAI angles on the front suspension. Who is correct?

A. A only B. B only C. Both A and B D. Neither A nor B

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For ease of removal when performing maintenance, sewage pumps should be connected to inlet and outlet piping with flanges or _____.

a. unions b. flexible couplings c. tees d. quick disconnects

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                                       steeriswhenthefrontandrearwheelsworkinunisontoachievethetightest possible turning radius.

A. Coordinated B. Articulated C. Front wheel D. Differential

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Unlike a standard van trailer a reefer trailer is constructed with insulation in the floors, walls, ceiling, and doors. Insulating properties are also known as:

A. Insulators B. Resilient C. "R" value D. Rigid value

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