NEETS MODULE 16 CHAPTER 1 TEST EQUIPMENT ADMINISTRATION AND USE
Q-1. What system is currently used by all branches of the military to identify test equipment?
Q-2. Name the two classes of test equipment.
Q-3. What test equipment is designed to generate, modify, or measure a range of parameters ofelectronic functions of a specific nature required to test a single system or equipment?
Q-4. Name the two basic elements of the SCLSIS program.
Q-5. What calibration label is used when actual measurement values must be known to use the testequipment?
Q-6. An instrument that must be calibrated in place requires what type of calibration label?
Q-7. Responsibility for repair and maintenance of test equipment generally rests with what group ofpersonnel?
Q-8. What Navy office oversees the MEASURE program?
Q-9. What are the two main categories of maintenance?
Q-10. What type of maintenance involves isolating equipment troubles and replacing defective parts?
Q-11. Which quantity (voltage or current) determines the intensity of an electrical shock?
Q-12. What tool is used to de-energize capacitors in a circuit that has been disconnected from its powersource?
Q-13. On what range should you set the voltmeter prior to taking a voltage measurement?
Q-14. When taking a voltage measurement, which lead of the voltmeter should you connect to the circuitfirst?
Q-15. Is an ammeter connected in series or in parallel with the circuit under test?
Q-16. What must be done to a circuit before you can use an ohmmeter for testing?
Q-17. What is the term used to refer to the losses which can be traced to the dielectric of a capacitor?
Q-18. What effect does an increase in capacitance have on a capacitor’s opposition to current flow?
Q-19. When a bridge is used to measure resistance, what is the value of Rx if R1 equals 80 ohms, R2equals 120 ohms, and R3 equals 280 ohms?
Q-20. When an unknown capacitance is tested with a bridge, what is the value of Cx if R1 equals 70ohms, R2 equals 150 ohms, and Cs equals 550 microfarads?
NEETS MODULE 16 CHAPTER 2 MISCELLANEOUS MEASUREMENTS
Q-1. What is the logarithmic ratio between the input and output of a given circuit called?
Q-2. What term is used to represent power levels above or below a 1-milliwatt reference?
Q-3. What milliwatt value is equal to +6 dBm?
Q-4. What name is given to a resistor used to replace the normal load in a circuit?
Q-5. What are the two types of bolometers?
Q-6. As the dissipated power increases, what effect does this have on the resistance of a thermistor?
Q-7. In a heterodyne-type frequency meter, what is the difference between the oscillator frequency andthe unknown frequency?
Q-8. What equipment uses a calibrated resonant circuit to measure frequency?
Q-9. Name two instruments used to analyze waveforms
Q-10. What device sweeps a band of frequencies to determine frequencies and amplitudes of eachfrequency component?
Q-11. What is the typical back-to-forward resistance ratio of a good-quality diode?
Q-12. As a transistor ages, what happens to the leakage current?
NEETS MODULE 16 CHAPTER 3 BASIC METERS
Q-1. What meters operate from their own power sources?
Q-2. What physical component of a galvanometer provides the restoring force for the coil?
Q-3. In a galvanometer, what two methods are used to indicate the amount of coil rotation?
Q-4. What is the primary disadvantage of the pointer arrangement for indicating coil rotation?
Q-5. What component of the D’Arsonval meter movement completes the circuit for current flow to thecoil?
Q-6. What component supplies restoring force to the coil of the D’Arsonval meter movement?
Q-7. What advantage is gained by using pole pieces with curved faces in the D’Arsonval metermovement?
Q-8. What structurally large, low-resistance conductor is connected in parallel with the metermovement to prevent damage?
Q-9. What type of temperature coefficient material does not produce increased heat in response toincreased current flow?
Q-10. A good choice of shunt resistance will place the indicating pointer near what part of the meterscale with a normal load?
Q-11. In what manner are current-measuring instruments connected to a circuit?
Q-12. An ammeter should always be connected so that current will flow into what terminal and out ofwhat terminal?
Q-13. (True or False) The larger the current required to produce full-scale deflection of the meter coil,the better the sensitivity of the meter.
Q-14. What condition exists when the insertion of a meter into a circuit changes the operation of thecircuit?
Q-15. What modification is made to the D’Arsonval meter movement to enable the meter to measurevoltage?
Q-16. What factors determine the value of the multiplier resistor?
Q-17. In what manner are voltage-measuring instruments connected to the circuit to be measured?
Q-18. When making voltage measurements in a high-resistance circuit, you should always use avoltmeter with what relative value of resistance?
Q-19. What term is used to express the sensitivity of a voltmeter?
Q-20. What instrument is used for measuring the insulation resistance of cables?
Q-21. What added features enable a dc milliammeter to function as an ohmmeter?
Q-22. A full-scale deflection on an ohmmeter scale indicates what resistance between the leads?
Q-23. The R ´ 100 resistance selection on an ohmmeter has what amount of resistance compared to theR ´ 10 selection?
Q-24. What is the purpose of the guard ring in a megohmmeter?
Q-25. Most meggers you will use are rated at what voltage?
Q-26. The development of excessive test voltages is avoided by the use of meggers equipped with whatdevice?
Q-27. What components in an electrodynamometer-type meter movement produce the magnetic field?
Q-28. What is the limiting factor as to the amount of current an electrodynamometer meter movementcan handle?
Q-29. What is the primary advantage of the electrodynamometer-type meter over the D’Arsonval-typemeter?
NEETS MODULE 16 CHAPTER 4 COMMON TEST EQUIPMENT
Q-1. What is one of the greatest advantages of a VOM?
Q-2. Before you connect a VOM in a circuit for an ohmmeter reading, in what condition must thecircuit be?
Q-3. When taking resistance readings with a VOM, you will obtain the most accurate readings at ornear what part of the scale?
Q-4. Besides setting up the meter for expected voltage ranges, what must be strictly observed whentaking dc voltage readings?
Q-5. Power for the electronic digital multimeter is normally supplied by what internal power source?
Q-6. How is an overload condition indicated by the electronic digital multimeter?
Q-7. In an electronic digital multimeter, the digital information is displayed by what type of numericalreadouts?
Q-8. What is the general function of the differential voltmeter?
NEETS MODULE 16 CHAPTER 5 SPECIAL-APPLICATION TEST EQUIPMENT
Q-1. To measure incident power, you must rotate the coupler-detector of the wattmeter so that thearrow indicating power flow points toward which end of the transmission line?
Q-2. What condition produces the 10-kHz error signal generated by the metering bridge in the HP-431C power meter?
Q-3. In signal generators, what device is used to regulate the voltage of the output signal?
Q-4. Name the three main sections of a typical rf signal generator.
Q-5. What is the function of the modulating circuit?
Q-6. What frequencies are provided through the back-panel BNC?
Q-7. The LED lamps of a typical logic probe are normally in what state?
Q-8. On the CRT display, what information is displayed in Quadrant 4?
Q-9. When aligning the trace with a short applied to channel A, which control should be adjusted tobring the trace parallel to the vertical axis?
Q-10. What minimum/maximum voltage level can be attained in the pulse generator section byadjusting the LEVEL control?
Q-11. Medium 1 range is designed to check what resistance values?
NEETS MODULE 16 CHAPTER 6 THE OSCILLOSCOPE AND SPECTRUM ANALYZER
Q-1. What element controls the number of electrons striking the screen?
Q-2. What element is controlled to focus the beam?
Q-3. Why are the electrostatic fields between the electron gun elements called lenses?
Q-4. What is the function of the second anode?
Q-5. What effect do longer deflection plates have on the electron beam?
Q-6. What effect does closer spacing of plates have on the electron beam?
Q-7. Is the deflection angle greater with higher or lower potential on the plates?
Q-8. Is the deflection angle greater when the beam is moving faster or slower?
Q-9. Waveforms are described in terms of what two functions?
Q-10. The vertical-deflection plates are used to reproduce what function?
Q-11. The horizontal-deflection plates are used to produce what function?
Q-12. Why are the ends of the deflection plates bent outward?
Q-13. What term is used to describe the reciprocal of deflection sensitivity of a scope?
Q-14. List the circuits that all oscilloscopes have in common.
Q-15. When you select the time base to display a signal, should the time base be the same, higher, orlower than the input signal?
Q-16. Oscilloscopes are used to measure what quantities?
Q-17. Scopes that produce two channels on a single CRT with a single beam are referred to as whattypes of scopes?
Q-18. The first converter is also known by what other name?
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