What is the CAN protocol, and how is it standardized?
What will be an ideal response?
The controller area network (CAN) protocol is the latest serial bus communication network used on OBD II systems. It offers real-time control and is expected to be the predominate protocol in use by 2008. The CAN protocol has been standardized by the International Organization for Standardization (ISO) as ISO 11898 standard for high-speed and ISO 11519 for low-speed data transfer.
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Which of the following is used to measure the backlash of two gears in mesh?
A. Dial indicator B. Micrometer C. Feeler gauge D. None of the above
Three different design screw compressors are:
A) Single screw, compound screw, and compound-complex screw. B) Open screw, semihermetic screw, and variable screw. C) Single screw with gate rotors, dual screw, and triple screw. D) Micro screw for small appliances, standard screw for 2—5-ton applications, and mega screw for industrial applications.
What is the period of a clock waveform whose frequency is 4 MHz?
A) 40 ?s B) .25 ms C) .25 ?s D) 250 ms
Which type of thermometer can measure the temperature of a surface from a distance?
A) Glass stem thermometers B) Infrared C) Digital pocket thermometers D) Dial-type bimetal thermometers