How much output current is a 78XX series regulator capable of?
A) up to 100mA only if adequate heat sinking is provided
B) up to 5 amps
C) up to 1 amp
D) up to 100mA
C
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A commonly used foundation drainage system consists of
A) a perforated drain pipe set within a layer of crushed stone or gravel, the layer wrapped with a filter fabric. B) a perforated drain pipe. C) a perforated drain pipe wrapped with filter fabric and set within a layer of crushed stone or gravel. D) a perforated drain pipe set within a layer of crushed stone or gravel. E) any one of the above.
Answer the following statement(s) true (T) or false (F)
1.One of the main reasons UTP cable is typically installed in homes is because of its lower cost per foot compared to STP cable. 2.Section 800.156 requires that at least one communications outlet be installed in each new home and that proper wiring be brought to the telephone company’s demarcation point. 3.If Category 6 cables are used, there cannot be any untwisted length away from the termination points. 4.If cable ties are used to support communication circuit wiring or coaxial cables in a plenum, they do not need to be listed specifically for use in plenums.
What percent of opacity means the exhaust has no visible smoke and does not block light from a beam projected through the exhaust smoke?
A) 0 % B) 25 % C) 100 % D) 50 %
Boards used as edge forms for tilt-up panels are commonly _____
a. 1" × 3" or 1" × 4" lumber b. 2" × 3" or 2" × 4" lumber c. 2" × 6" or 2" × 8" lumber d. 2" × 8" or 1" × 10" lumber