The accompanying figure shows a low-voltage switch, commonly used in a remote control lighting circuit. Explain how each of the four terminals are usually connected.
Connections are made to this low-voltage switch as follows: terminal No. 4 is connected to the 24-volt transformer source; terminal No. 1 is not connected to the switch contacts, but is used only for connection purposes so that splices are unnecessary; and the two other terminals connect to the relay or to other low-voltage switches.
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Bill uses 28 acres for his horses. He applied 45-60-50 units of fertilizer per acre using 46-0-0 urea at $505 per ton, 18-46-0 DAP at $710 per ton, and 0-0-60 muriate of potash at $571 per ton. He reseeded with 14 pounds of orchard grass per acre at $1.32 per pound and 2.2 pounds of clover per acre at $3.45 per pound.
a. How many pounds of fertilizer were applied per acre? b. What did the fertilizer cost? c. What did the seed cost?
List three general construction hazards not associated with electricity.____________________________________________________________________________________________________________
What will be an ideal response?
An audio amplifier with resistance 9? supplies power to a speaker. In order that maximum power is delivered, what should be the resistance of the speaker?
What will be an ideal response?
The best way to adjust a CPR valve is by ____.
A. adjusting the low pressure control B. measuring the temperature drop of the air through the evaporator C. adjusting the CPR to produce an amperage draw of the compressor motor to the motor nameplate rating plus 10% D. adjusting the CPR to produce an amperage draw of the compressor motor to the motor nameplate rating plus 25%