A film camera's _____ is 3:2, which means the image is three units (wide) by two units (tall)
a. aperture
b. aspect ratio
c. depth of field
d. composition
B
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When installing heating cable, fasten the cable to the pipes using fiberglass tape or _____.
a. duct tape b. metal attachments c. plastic cable ties d. vinyl electrical tape
Which of the following is used in HID dimming circuits to detect movement as people enter and to bring the aisle lighting to full luminance?
a. SL b. SLD c. SLIP d. SLOD
Which of the following could cause this condition?
A walk-in with TEV has the following conditions: ? Subcooling is 0° ? Superheat is 25° a. Dirty condenser b. Dirty or iced evaporator c. Overcharge d. Undercharge
Smart I/O is the interface that ________
A) Distributes the network control capability across a large automation system B) Includes a microprocessor so that it can be programmed for network data exchange C) Is a single plug-and-socket connection with a high data transfer speed D) Is either built into the processor module or come as separate modules