Define concrete
What will be an ideal response?
Concrete is a mixture of portland cement, water, sand, and coarse aggregates.
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Photosynthesis takes place only during the late evening
Indicate whether the statement is true or false
A ____ structure is made by wrapping aluminum stripes around the Permalloy at a 45° angle to the strip axis.
A. loop pole B. Maypole C. log pole D. barber pole
Technician A says that a compressor receives low pressure liquid refrigerant and discharges high pressure gas. Technician B says that an orifice tube or TXV separates the high pressure and low pressure sections of an A/C circuit. Who is correct?
A. Technician A only B. Technician B only C. Both A and B D. Neither A nor B
Answer the following statement(s) true (T) or false (F)
1. A 12-volt battery can be used to provide continued operation of 120 VAC until the AC power is restored.
2. The fuse in an alarm circuit is used to protect against a ground fault.
3. The arm switch is connected in parallel with the key switch, and located on the front panel of the alarm.
4. In the accompanying figure, fuse F1 is used to protect against under voltage. 
5. In the accompanying figure, switch S1 is a single-pole switch.