When used in a circuit, an LED is generally operated at about _____.
a. 5mA or less
b. 10mA or less
c. 15mA or less
d. 20mA or less
d. 20mA or less
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Which of the following materials increases the mortar's compressive strength?
A) Sand B) Lime C) Portland cement D) Mortar joint profile E) All of the above
Explain how countersunk holds are dimensioned.
What will be an ideal response?
Technician A says that low battery voltage can cause driveability problems. Technician B says that charging voltage should be over 15 volts when the engine is idling. Which technician is correct?
A) Technician A only B) Technician B only C) Both technicians D) Neither technician
Upon checking the voltage output of a power supply with an oscilloscope, you notice an unusually large amount of ripple. What could possibly be the problem?
A) shorted filter capacitor B) open filter capacitor C) shorted load D) either B or C