Foam insulation is the only commonly available insulation product that is ____.
A. vapor permeable
B. semi-permeable
C. air impermeable
D. air permeable
Answer: C
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What is interrupt-driven I/O and what is its major advantage?
A) 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. B) 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. C) Each individual I/O device is serviced sequentially on a regular basis by the PIC. This speeds up the I/O process. D) 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.
The grades of fuel oil are 1 through 6 with
A) 6 being the lightest and most distilled and having the highest heating capacity B) 6 being the lightest and most distilled and having the lowest heating capacity C) 1 being the lightest and most distilled and having the highest heating capacity D) 1 being the lightest and most distilled and having the lowest heating capacity
Create a list of chemical and/or materials that have changed in order to comply with the Montreal Protocol.
What will be an ideal response?
The electric starter motor uses the operating principle of the ____ motor.
a. DC b. AC c. mechanical d. steam