What is the primary advantage of using a cold start fuel injector?
A. It allows for a richer air/fuel ratio when starting a cold engine.
B. It allows more time for the fuel to vaporize when starting a cold engine.
C. It allows for the use of a lower octane fuel when starting a cold engine.
D. It allows the PCM to shut down the primary fuel injectors when starting a cold engine.
Answer: B
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An insurance company offers a discount to homeowners who install smoke detectors in their homes. A company representative claims that 80% or more of policyholders have smoke detectors. You draw a random sample of eight policyholders. Let Xbe the number of policyholders in the sample who have smoke detectors.
a. If exactly 80% of the policyholders have smoke detectors (so the representative’s claim is true, but just barely), what is P(X ? 1)? b. Based on the answer to part (a), if 80% of the policyholders have smoke detectors, would one policyholder with a smoke detector in a sample of size 8 be an unusually small number? c. If you found that one of the eight sample policyholders had a smoke detector, would this be convincing evidence that the claim is false? Explain. d. If exactly 80% of the policyholders have smoke detectors, what is P(X ? 6)? e. Based on the answer to part (d), if 80% of the policyholders have smoke detectors, would six policyholders with smoke detectors in a sample of size 8 be an unusually small number? f. If you found that six of the eight sample policyholders had smoke detectors, would this be convincing evidence that the claim is false? Explain.
When applying the principles of atmospheric pressure and vacuum:
A. Vacuum is pressure greater than atmospheric pressure B. A perfect vacuum is 30 in. Hg C. When air becomes colder, it expands and becomes lighter D. Atmospheric pressure at sea level is 14.7 psi
Which component is the driven member of the clutch assembly?
A. clutch disc B. flywheel C. pressure plate assembly D. release yoke
If the time for one cycle is 0.1 second, the frequency is _____
a. 0.1 Hz b. 0.5 Hz c. 1 Hz d. 10 Hz