An amplifier that is biased so that the current flows throughout the entire cycle is operating as a ____ amplifier.
A. class A
B. class AB
C. class B
D. class C
Answer: A
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If a crew of masons is needed to lay 1,000 concrete blocks, and the estimator determined that two masons could complete the job in one eight-hour day, what is the estimated productivity rate for block laying?
a. 125 blocks per hour b. 62.5 blocks per hour c. 31.25 blocks per hour d. 16 blocks per hour
All shovels are sharpened on the ____________________ of the digging edge
Fill in the blank(s) with the appropriate word(s).
What size holes would be required through a column baseplate for ?" -diameter anchor rods?
What will be an ideal response?
A heat pipe heat exchanger _____
a. transfers heat from one end of the exchanger to the other b. is an active device that needs no electrical energy input c. only operates if the supply and exhaust airstream temperatures are equal d. decreases the dehumidification capacity of a system