Varactors are used primarily in
A) power supplies B) switching circuits C) amplifiers D) tuned circuits
D
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The biggest safety hazard associated with working as an electrician is ____.
a. electrical shock b. falling c. slipping d. fire
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What is an advantage of face and bypass control dampers?
What will be an ideal response?
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Where is the mixed-air temperature measure on an air handler?
A) Outside by the fresh air intake B) In the VAV box where the conditioned air and room air are mixed C) Inside near the return air grille D) In the mixing box
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List two ways in which the torque in a given DC motor can be changed.
What will be an ideal response?
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