1. |
Voltages are usually measured by placing the measuring device in parallel with the component or circuit (load) to be measured. The measuring device should have an infinite internal resistance input impedance) so that it will absorb no energy from the circuit under test and, therefore, measure the true voltage. |
|
|
True |
|
|
False |
2. |
Figure 1-5 represents
|
|
|
Ac-dc differential voltmeter, |
|
|
Digital multimeter |
3. |
A major advantage of using an _____________ for ac voltage measurements is that the waveform can be observed; consequently, errors in measuring complex peak voltages are minimized. It may be used as a high-impedance ac voltmeter. |
|
|
Oscilloscopes |
|
|
Multimeters |
|
|
Voltmeters |
4. |
In page 28, ______________ produce the large voltages that are required to measure resistances as high as 10,000megohms – only high resistance values can be measured. |
|
|
Meggers |
|
|
Bridges |
5. |
The Hay Bridge (view B of fig. 1-14) differs from the Maxwell Bridge (view C) in figure 1-14. The difference is – for the Hay Bridge resistance associated with the capacitance is a series instead of a shunt resistance. |
|
|
True |
|
|
False |
6. |
In pages 1-20 and 1-21 the Maxwell & Hay Bridges are used to calculate: |
|
|
Inductances |
|
|
Resistances |
7. |
The factors affecting the life expectancy of the________ are listed in page 43.
|
|
|
Electron Tube |
|
|
Klystron Tube |
8. |
Electrostatic Discharge Sensitive (ESDS) devices can be grouped by their sensitivity to ESD as ____________
|
|
|
Very sensitive devices, |
|
|
Moderate sensitive devices, |
|
|
Sensitive devices |
|
|
All the above |
9. |
RF diode test and switching diode test are the types of diode testers.
|
|
|
True |
|
|
False |
10. |
Figures 2-8 to 2-11 represent the different characteristics of different diodes.
|
|
|
True |
|
|
False |
11. |
Figure 2-23 represents:
|
|
|
Types of ICs |
|
|
Types of diodes |
12. |
The Wheatstone, Schering, Kelvin, Hay, Resistance-Ratio and Maxwell bridges are the basic bridge circuits as shown in page 3-2.
|
|
|
True |
|
|
False |
13. |
The resistance-ratio bridge, shown in figure 3-1, may be used to measure ___________________ so long as the electronic part to be measured is compared with a similar standard. |
|
|
Capacitance, inductance, or resistance |
|
|
Capacitance and inductance |
14. |
The ________________ is used to measure power taken from ac or dc power sources. It uses the reaction between the magnetic fields of two current-carrying coils (or sets of coils), one fixed and the other movable as shown in figure 3-10.
|
|
|
Electrodynamic wattmeter |
|
|
Converter |
15. |
The absorption, the reaction, and the transmission types are three basic kinds of wave meters.
|
|
|
True |
|
|
False |
16. |
The Hewlett-Packard Model 415E SWR meter, shown in figure 4-3, is a commonly used SWR meter.
|
|
|
True |
|
|
Flase |
17. |
What does the formula for impedance represent on page 4-9?
|
|
|
Impedance for a coaxial line |
|
|
Impedance of a Conductor |
18. |
In page 4-11 the attenuation for a coaxial line is described in terms of decibels per foot.
|
|
|
True |
|
|
Flase |
19. |
Wave-Envelope and Trapezoidal Pattern are the two types of _____________
|
|
|
Modulation Patterns |
|
|
Waveform Patterns |
20. |
Rate of frequency shift is inversely proportional to the frequency of the modulating signal.
|
|
|
True |
|
|
False |
|