All of the following statements about the air injection system are true EXCEPT:
A. a diverter valve, or a similar type of device, prevents a backfire during deceleration.
B. a one-way check valve prevents exhaust from backing up into the hoses and pump.
C. a high-pressure vane-type pump driven by a crankshaft belt provides air.
D. computer-controlled three-way catalyst systems include an air switching valve that moves the injected air into the exhaust manifold or into part of the catalytic converter.
Answer: C
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During a generation of peace following the 1713 Treaty of Utrecht, Britain provided its American colonies with
A. a large military presence for protection. B. decades of salutary neglect. C. higher taxes passed by Parliament. D. stronger parliamentary direction. E. representative seats in the British Parliament.
How many expansion springs should be installed in the banding on a hot vessel with an insulated circumference of 50' (15.2 m)?
a. None are required. b. 1 c. 2 d. 3
What organizations do the acronyms ANSI, ASTM, SAE, and ISO refer?
What will be an ideal response?
Which of these do NOT provide extra gears on some trucks?
a. Multi-speed rear axles. b. Automatic transmission. c. Auxiliary transmission.