Generally speaking, electric heat is very efficient but can be more expensive to operate compared to oil and gas.
Answer the following statement true (T) or false (F)
True
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The subsequent problems deal with the circuit below where the preset and clear features operate based on positive logic (i.e., they are "active high"), which is not the standard convention.
Note: Each question is independent and doesn't depend on results from previous questions. The only values known initially are the values provided in each question.When L=0, C=1, and R changes from 0 to 1, the output X
A. becomes (or remains) 0 B. remains unchanged (regardless of whether the initial value is 0 or 1) C. toggles regardless of its value D. is uncertain E. becomes (or remains) 1
Manual rebar cutters can be used to cut rebar in diameters up to _____
a. 2 inches b. 1-1/2 inches c. 1 inch d. 1/2 inch
The ribs and slab of one-way joist slabs are cast _____
a. continuously b. sequentially c. intermittently d. monolithically
The evaporator coil operating temperature for a system with a 20°F split, 85°F return air and 71°F supply air is
A) COT = 71°F - 20 = 51°F B) COT = ((85°F - 71°F)/2 ) - 20 = 58°F C) COT = ((85°F - 71°F)/2 ) + 20 = 98°F D) COT = 85°F - 20 = 75°F