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
D
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The testing strength rating for concrete is usually based on _____ of curing time.
A. 28 days B. three weeks C. 72 hours D. 24 hours
Find a 98% confidence interval for the difference between the mean sodium contents of the two brands.
Measurements of the sodium content in samples of two brands of chocolate bar yield the following results (in grams): Brand A 34.36 31.26 37.36 28.52 33.14 32.74 34.34 34.33 30.95 Brand B 41.08 38.22 39.59 38.82 36.24 37.73 35.03 39.22 34.13 34.33 34.98 29.64 40.60
This electrical component allows current to flow in only one direction and operates similar to a check valve
A) Bleed resistor B) Semiconductor C) Diode D) Capacitor
What is the optimum operating temperature for an internal combustion engine?
A) 200 deg F B) 165 deg F C) 100 deg F D) 235 deg F