Estimate how many standard-size bricks are needed to build a fireplace base having a length of 6', a width of 2'8", and a height of 5' 6". Round answers to the nearest whole brick and note that double-wythe walls are a minimum requirement.
What will be an ideal response?
1,056
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Four-way switches are ____ (DPDT) switches with an internal criss-cross connection.
a. double-pole double-throw b. dynamic-pole dynamic-throw c. double-pole dynamic-throw d. dynamic-pole double-throw
The subsequent problems deal with the circuit below where the op amps are LM741's powered by a ±15 V power supply. Assume R1 = R2 = R3 = R4 = R. Assume the op amps are ideal.
If V2 = 2 V, the current output by op amp 2 is
A. 2 / R B. 2 / 3R C. 1 / R D. 0 E. 3 / R
Technician A says that a repair order does not need to be filled out for a no charge (free) repair. Technician B says that the repair order is a legal document that must be filled out for every vehicle worked on. Who is correct?
A. Technician A only B. Technician B only C. Both A and B D. Neither A nor B
Expansion tanks must always be bled from the top until all of the air is removed from it.
Answer the following statement true (T) or false (F)