DEE10133 CHAPTER 2: OSCILLOSCOPE -1

Based on Figure A1, calculate the value of frequency (f) if the Volt/div = 5V and Time/div = 2ms.

• A.    72Hz

• A.    62.5Hz

• A.    0.072Hz

• A.    0.062Hz

Oscilloscopes are used in the science, medicine, engineering and telecommunication industries. Choose which statements are TRUE.

• It is used for give the visual representation in a radar application

• It is used to trace and measure a signal throughout the RF, IP and AP channels of radio and television receiver.

• It is used to determine the modulation characteristics to detect the waves in transmission line

•   It is used to measure capacitance, inductance and also used to check the diode.

Choose the first step to be done to make sure that the oscilloscope is in good condition

• Select a suitable range of Volt/Div.

• Switch selector the input to channel 1.

• Calibrate the oscilloscope.

• Change the probe of oscilloscope

The amplitude of an oscilloscope is 6 divisions and the volt/div knob is set at 2 volt/div. Calculate the value of peak to peak voltage (Vpp).

• 3V      

• 0.3V

• 1.2V

• 12V

The waveform shown in figure are observed on the screen of an oscilloscope. If the vertical attenuation is set  2V/div and time/div control is set  1ms, calculate the phase angle.

• 102.8

• 45

• 72

• 90

The waveform shown in Figure B3(c) is observed on the screen of an oscilloscope. If the vertical attenuation is set at 2.5V/div and the time/div control is set at 100µs, calculate the peak-to-peak voltage

(Vp-p)

• 4Vpp

• 7.5 Vpp

• 6Vpp

• 6.25Vpp

The waveform shown in Figure B3(c) is observed on the screen of an oscilloscope. If the vertical attenuation is set at 2.5V/div and the time/div control is set at 100µs, calculate the time of 1 cycle (T)

• 250us

• 400us

• 600us

• 300us

Oscilloscopes are used in the science, medicine, engineering and telecommunication industries. Choose which statements are TRUE.

i.     It is used for give the visual representation in a radar application

ii.     It is used to trace and measure a signal throughout the RF, IP and AP channels of radio and television receiver.

iii.     It is used to determine the modulation characteristics to detect the waves in transmission line

iv.                    It is used to measure capacitance, inductance and also used to check the diode.

• A.    i,ii and iii

• A.    i, iii and iv

• A.    i,ii and iv

• A.    i,ii,iii and iv

The amplitude of an oscilloscope is 6 divisions and the volt/div knob is set at 2 volt/div. Calculate the value of peak to peak voltage (Vpp).

• 3V      

• 1.2V

• 0.3V

• 12V

Choose the first step to be done to make sure that the oscilloscope is in good condition

• Select a suitable range of Volt/Div.

• Change the probe of oscilloscope

• Calibrate the oscilloscope.

• Switch selector the input to channel 1.