What is the difference between diagnostic test modes 7 and 8?
What will be an ideal response?
Mode 7 provides test results for continuous monitors. It displays pending DTCs. Mode 7 is not supported by all global OBD II scan tools.
Mode 8 provides control of on-board systems or components, such as sealing the evaporative system before performing a manual pressure test.
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The design and operation of a compressor can usually be classified into two groups:
a. positive displacement and dynamic b. rotary and reciprocating c. axial and centrifugal d. piston and centrifugal
A group of 50 computer science students were taught introductory computer programming class with an innovative teaching method that used a graphical interface and drag-and-drop methods of creating computer programs. At the end of the class, 43 of these students said that they felt confident in their ability to write computer programs. Another group of 40 students were taught the same material using a standard method. At the end of class, 25 of these students said they felt confident. Assume that each class contained a simple random sample of students. Find a 99% confidence interval for the difference between the proportions of students who felt confident.
What will be an ideal response?
A measurement of electrical current flow:
A. ampere B. current C. watt D. volt E. none of the above
The strength of the magnetic field is ____ the number of turns in the coil and the amount of current flowing through it.
A. double B. half C. directly proportional to D. inversely proportional to