Why do stuffing box applications require some leakage?
What will be an ideal response?
A small leakage is necessary to assist in lubrication and to cool the shaft to ensure maximum wear.
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When looking at a solenoid with an oscilloscope, what event occurs when the injector is switched off?
A) Voltage spike B) Diode ripple C) Voltage drop D) Decreased resistance
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The capacitors in a the feedback network of a Colpitts oscillator are C1 = 0.22 ?F and C2 = 0.022 ?F. If the inductor is equal to 1.1 mH the output frequency of the oscillator is
A) 9.75 kHz B) 33.9 kHz C) 7.45 kHz D) 3.41 kHz
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Where does one come across balloon frame construction these days?
What will be an ideal response?
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Fluteless spiral pointed taps are used to tap:
A) Nuts B) Tough materials C) Holes in sheet metal D) Deep holes
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