The high and low pass filters in a twin-T oscillator act as a
A) phase shift filter B) notch filter
C) bandpass filter D) negative feedback path
B
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What is the applied voltage if the current in a circuit is 60 amps and the resistance is 10 ohms?
a. 6 volts b. 60 volts c. 600 volts d. 6,000 volts
Adjustable wrenches can slip and round off corners of bolt heads.
Answer the following statement true (T) or false (F)
?Why is the root pass weld started on top of a tack weld?
A. ?To eliminate the potential lack of fusion. B. ?To prevent porosity caused by the lack of shielding gas at the instant the weld starts. C. ?So the arc light will show the root opening and make it easier to get aligned with the root opening as the weld moves off of the tack weld. D. ?The root pass can be started anywhere it is comfortable for the welder to begin welding.
Margarine was first developed as a low cost substitute for butter.
Answer the following statement true (T) or false (F)