An oscillator that uses a transformer to achieve the 180° voltage phase shift required for oscillation is known as a
A) Hartley oscillator B) Wien-bridge oscillator
C) Colpitts oscillator D) Armstrong oscillator
D
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As long as it is supportive of good plant growth, the soil used to backfill a planting pit should be ____________________
Fill in the blank(s) with correct word
A soil found in very cold climates where the ground is permanently frozen would fit best into which order?
a. Entisols c. Gelisols b. Aridisols d. Histisols
Which of the following is not a problem associated with carrier associated signaling (CAS)?
A) the inability to carry signaling messages, with special feature information, between switches or between the switch and the telephone B) the ease of placing fraudulent calls C) the need to turn off the robbed bit signaling function when transmitting high-speed data D) none of the above
Technician A says that coasting when a clutch is disengaged can cause engine overspeed. Technician B says that coasting with a clutch disengaged can spin the driven discs at speeds as high as 10,000 rpm due to the multiplication of drivetrain ratios. Who is correct?
A. Technician A only B. Technician B only C. Both A and B D. Neither A nor B