Which of the following can significantly increase the life of all vehicle light systems?
A. chassis voltage stabilizer
B. increasing voltage regulator setting
C. limiting alternator maximum speed
D. replace at each PMI
Answer: A
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When is the braking efficiency of any engine brake usually at its highest?
A. at idle rpm B. at peak torque rpm C. anywhere in torque rise D. at the highest engine rpms
? Identify and state the historical significance of Benito Mussolini.
What will be an ideal response?
The National Center for Health Statistics interviewed5409 adult smokers in 2015, and 2636 of them said they had tried to quit smoking during the past year. Consider this to be a random sample.
a. Find a 95% confidence interval for the proportion of smokers who have tried to quit within the past year. b. Find a 99% confidence interval for the proportion of smokers who have tried to quit within the past year. c. Someone claims that the proportion is less than 0.5. With what level of confidence can this statement be made? d. Find the sample size necessary for a 95% confidence interval to specify the proportion to within±0.01. e. Find the sample size necessary for a 99% confidence interval to specify the proportion to within±0.01.
The power output of a water turbine is given by P = pgQh, where P is power,p is density of water (kg/m3), g is acceleration due to gravity (m/s2), Q is water flow rate (m3/s), and h is the available water head (m). What is the appropriate unit for P?
What will be an ideal response?