An amplifier has a lower cutoff frequency (fC1 ) of 820 kHz and an upper cutoff frequency of 880 kHz. The center frequency (f0 ) of the amplifier is
A) 850 kHz B) 60 kHz C) 120 kHz D) 849 kHz
D
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Multistage air bags are hybrid air bags that use ____ to control the rate of inflation.
A. heated gas inflators B. two squibs C. valves D. limit switches
How can you condition or acclimate a greenhouse-grown plant to growing indoors?
What will be an ideal response?
In the hierarchy of machine protection, which of the following is top?
A) Protection devices B) Movable interlock guards C) Easy access to safety information D) Fixed enclosing guards
Technician A says a power booster is used to force the air into the engine. Technician B says a power booster commonly uses engine vacuum to assist in increased braking pressure for power brakes. Who is correct?
A. Technician A only B. Technician B only C. Both Technicians A and B D. Neither Technician A nor B