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NEETS > NEETS 16 CH 1,6 > Flashcards

NEETS 16 CH 1,6 Flashcards

1
Q

What system is currently used by all branches of the military to identify test equipment?

A

Joint Electronics Type Designation System (JETDS

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2
Q

Name the two classes of test equipment.

A

General-purpose electronic test equipment (GPETE) and special-purpose electronic test equipment (SPETE).

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3
Q

What test equipment is designed to generate, modify, or measure a range of parameters of electronic functions of a specific nature required to test a single system or equipment?

A

Special-purpose electronic test equipment

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4
Q

Name the two basic elements of the SCLSIS program.

A

Validation and updating

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5
Q

What calibration label is used when actual measurement values must be known to use the test equipment?

A

. CALIBRATED—REFER TO REPORT

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6
Q

An instrument that must be calibrated in place requires what type of calibration label?

A

SPECIAL CALIBRATION label

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7
Q

Responsibility for repair and maintenance of test equipment generally rests with what group of personnel?

A

Maintenance personnel

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8
Q

What Navy office oversees the MEASURE program?

A

The Chief of Naval Operations

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9
Q

What are the two main categories of maintenance?

A

. Preventive and corrective maintenance.

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10
Q

What type of maintenance involves isolating equipment troubles and replacing defective parts?

A

Corrective maintenance.

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11
Q

Which quantity (voltage or current) determines the intensity of an electrical shock?

A

. Current.

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12
Q

What tool is used to de-energize capacitors in a circuit that has been disconnected from its power source?

A

Shorting probe

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13
Q

On what range should you set the voltmeter prior to taking a voltage measurement?

A

Highest.

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14
Q

When taking a voltage measurement, which lead of the voltmeter should you connect to the circuit first?

A

Ground

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15
Q

Is an ammeter connected in series or in parallel with the circuit under test?

A

In series.

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16
Q

What must be done to a circuit before you can use an ohmmeter for testing?

A

It must be de-energized

17
Q

What is the term used to refer to the losses which can be traced to the dielectric of a capacitor?

A

Power losses.

18
Q

What effect does an increase in capacitance have on a capacitor’s opposition to current flow?

A

Opposition to current flow decreases

19
Q

When a bridge is used to measure resistance, what is the value of Rx if R1 equals 80 ohms, R2 equals 120 ohms, and R3 equals 280 ohms?

A

420 ohms.

20
Q

When an unknown capacitance is tested with a bridge, what is the value of Cx if R1 equals 70 ohms, R2 equals 150 ohms, and Cs equals 550 microfarads?

A

256 microfarads

21
Q

What element controls the number of electrons striking the screen?

A

Control grid.

22
Q

What element is controlled to focus the beam?

A

The first anode

23
Q

Why are the electrostatic fields between the electron gun elements called lenses?

A

Because they bend electron streams in much the same manner that optical lenses bend light rays.

24
Q

What is the function of the second anode?

A

accelerates the electrons emerging from the first anode.

25
Q

What effect do longer deflection plates have on the electron beam?

A

A greater deflection angle.

26
Q

What effect does closer spacing of plates have on the electron beam?

A

A greater deflection angle

27
Q

Is the deflection angle greater with higher or lower potential on the plates?

A

. Higher potential

28
Q

Is the deflection angle greater when the beam is moving faster or slower?

A

Slower beam.

29
Q

Q-9. Waveforms are described in terms of what two functions?

A

A-9. Amplitude and time.

30
Q

Q-10. The vertical-deflection plates are used to reproduce what function?

A

Amplitude

31
Q

Q-11. The horizontal-deflection plates are used to produce what function?

A

A-11. Time and/or frequency relationships.

32
Q

Why are the ends of the deflection plates bent outward?

A

A-12. To permit wide-angle deflection of the beam.

33
Q

Q-13. What term is used to describe the reciprocal of deflection sensitivity of a scope?

A

A-13. Deflection factor.

34
Q

Q-14. List the circuits that all oscilloscopes have in common.

A

A-14. A CRT, a group of control circuits, power supply, sweep circuitry, and deflection circuitry.

35
Q

When you select the time base to display a signal, should the time base be the same, higher, or lower than the input signal?

A

A-15. Lower.

36
Q

Q-16. Oscilloscopes are used to measure what quantities?

A

A-16. Amplitude, phase, time, and frequency.

37
Q

Scopes that produce two channels on a single CRT with a single beam are referred to as what types of scopes?

A

A-17. Dual-trace oscilloscopes.

38
Q

Q-18. The first converter is also known by what other name?

A

A-18. Front end.

NEETS (11 decks)

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