Answer the following statement(s) true (T) or false (F)
1. Most of the pressure switches used for air conditioning are operated by a bellows.
2. In a high-pressure switch, the bellows is connected to the suction side of the compressor.
3. The low-pressure switch is connected to the discharge side of the compressor.
4. Most of the pressure switches used for commercial or industrial systems are adjustable.
5. The pressure settings are different for different types of refrigerant.
1. TRUE
2. FALSE
3. FALSE
4. TRUE
5. TRUE
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What does the z indicate as shown in Figure 2?
a. The size of the weld based on the leg length of the weld
b. The size of the weld based on the throat of the weld
c. The length of the weld
d. That the weld is to be intermittent
Background noise facilitates the use of two-way radios to communicate from the weld shop floor to crane operators.
Answer the following statement true (T) or false (F)
Air is compressed in an insulated cylinder from 47ºC and 120 kPa to 1200 kPa. Assuming negligible losses, the final temperature of this isentropic process is nearest:
A) 337ºC B) 492ºC C) 561ºC D) 610ºC
What effect do you think cultivation could have on soil pH? (Hint: Think about
the amount of organic material and chemicals added to the soil during farming.)
What will be an ideal response?