The orthographic methow of drafting is used to show three basic views and they are ________, _________ and __________.
Fill in the blank(s) with the appropriate word(s).
plan, front, right side
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What type of electrode is best suited for steel that has a tendency to develop porosity and underbead cracking?
a-fill freeze b-low hydrogen c- fast fill d-fast freeze
How do power factor, true power, and apparent power relate to one another? __________
a. Power factor is the true power divided by the apparent power. b. Power factor is the apparent power provided by the true power. c. Power factor is the true power multiplied by the apparent power. d. All the above are true.
What is interrupt-driven I/O and what is its major advantage?
A) An I/O device needing service sends a request to the PIC (programmable interrupt controller), which in turn notifies the CPU of the request based on the assigned priority level of the specific I/O device. If there are no pending I/O requests the CPU does not have to spend time checking the I/O ports. B) Each individual I/O device is checked sequentially on a regular basis to see if it needs to be serviced. This slows down the CPU operation. C) Individual I/O devices regularly send inquiries to the CPU to see if it is available for a specific I/O operation; if the CPU is available, the I/O device then proceeds to carry out its operation. D) Each individual I/O device is serviced sequentially on a regular basis by the PIC. This speeds up the I/O process.
Tank heaters are capable of providing a specific amount of hot water per hour, referred to as the ____ rating, based on the tank size, efficiency rating and the fuel type.
A. hourly B. timed C. measured D. first hour