Reference no: EM131151196
1. A sine wave has a peak-to-peak voltage of 25 V. The rms voltae
(a) 8.83V
(b) 12.5 V
(c) 17.7 V
(d)35.4V
2 .The number of radians in one-fourth cycle is:
(a) 57.3
(b) ∏/2
(c)
(d) 2∏
3. Assume a sine wave has 100 complete cycles in 10 s. The period is:
(a) 0.1 s
(b) 1 s
(c) 10 s
(d) 100 s
4. Assure a series resistive circuit contains three equal resistors. The source voltage is waveform of 30 Vpp What is the rms voltage drop across each resistor?
(a) 3.54 V
(b) 5.0 V
(c) 10 V
(d) 21.2 V
5.Pulse width is normally measured at the:
(a) 10% level
(b) 50% level
(c) 90% level
(d) baseline
6.A waveform characterized by positive and negative ramps of equal slope is called
(a) triangle
(b) sawtooth
(c) sweep
(d) step
7. A repetitive pulse train has a pulse width of 2.5 µs and a frequency of 100 KHz
(a) 2.5%
(b) 10%
(c) 25%
(d) 40%
8. The oscilloscope section that determines when it begins to trace a waveform is:
(a) horizontal
(b) vertical
(c) trigger
(d) display
9. The oscilloscope control that determines how fast the electron beam moves
(a) SLOPE
(b) HOLDOFF
(c) VOLTS/DIV
(d) SECiDIV
10. Measurement of pulses should be done with the input signal coupled to the
(a) AC coupling
(b) DC coupling
(c) either ac or dc coupling
11 .A standard utility voltage is 115 V at a frequency of 60 Hz.
(a) What is the peake- to-peak voltage?
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