Explain what symptoms would be observed if the inlet strainer of a thermostatic expansion valve becomes clogged.
What will be an ideal response?
The customer would place a "no cooling" call since the box would not be maintaining the desired temperature.
Upon arriving at the job, the service technician would observe the following:
-Evaporator superheat will be excessively high
-The inlet of the evaporator may be frozen, or at least frosted
-The evaporator will be warmer than normal (to the touch)
-Low suction pressure
-The temperature differential between the air supplied to the box and the box temperature will be very low
-The compressor shell will be warmer than normal (less suction cooling)
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Pesticide drift is the movement of a pesticide through the air to target sites
Indicate whether the statement is true or false.
The most common type of defect during printed circuit board assembly is ____.
A. open circuits B. short circuits C. missing parts D. misoriented parts
The first reason for Rome’s success lay in Rome’s location
a. on the eastern side of Italy, close to the Balkans. b. in the far south of Italy, far from the Etruscan heartland. c. in the north of Italy, close to trade routes with Gaul. d. on the western side of Italy, near the middle of the Italian peninsula.
During an SRAM memory write operation ________
A) the data to be stored is placed on the data bus, the write line is activated, and the address of the memory location is placed on the address bus B) the data to be stored is placed on the data bus, the address of the memory location is placed on the address bus, and the write line is activated C) the write line is activated, the address of the memory location is placed on the address bus, and the data to be stored is placed on the data bus D) the address of the memory location is placed on the address bus, the data to be stored is placed on the data bus, and the write line is activated