Chapter 8 has no Review Questions.
What will be an ideal response?
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Describe the schematic symbols for push buttons.
What will be an ideal response?
All of the following statements are true EXCEPT:
A. when intake or exhaust is restricted the engine cannot bring in enough fresh air and fuel. B. one cause of an air-fuel mixture that is too lean to burn is a leak in the intake system. C. after a misfire, whatever remains in the cylinder ends up in the exhaust stream, decreasing the HC level. D. high HC can be caused by a defective spark plug or problems with ignition wiring.
A system consists of components A and B connected in series, as shown in the following schematic illustration. The lifetime in months of component A is log-normally distributed with µ = 1 and ? = 0.5, and the lifetime in months of component B is lognormally distributed with µ = 2 and ? = 1. The system will function only so long as A and B both function.
a. Generate, by simulation, a large number (at least 1000) of system lifetimes.
b. Estimate the mean system lifetime.
c. Estimate the probability that the system fails within 2 months.
d. Estimate the 20th percentile of system lifetimes.
e. Construct a normal probability plot of system lifetimes. Is the system lifetime approximately normally distributed?
f. Construct a histogram of the system lifetimes. Is it skewed to the left, skewed to the right, or approximately symmetric?
Two technicians are discussing coil-on-plug ignition systems. Technician A says that they can be called coil-near-plug or coil-by-plug ignition systems. Technician B says that some can use ion sensing. Which technician is correct?
A) Technician A only B) Technician B only C) Both technicians D) Neither technician