MOD 16 CH 1,6

Question 2

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

Answer 2

Joint Electronics Type Designation System (JETDS

Question 3

Name the two classes of test equipment.

Answer 3

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

Question 4

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?

Answer 4

Special-purpose electronic test equipment

Question 5

Name the two basic elements of the SCLSIS program.

Answer 5

Validation and updating

Question 6

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

Answer 6

. CALIBRATED—REFER TO REPORT

Question 7

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

Answer 7

SPECIAL CALIBRATION label

Question 8

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

Answer 8

Maintenance personnel

Question 9

What Navy office oversees the MEASURE program?

Answer 9

The Chief of Naval Operations

Question 10

What are the two main categories of maintenance?

Answer 10

. Preventive and corrective maintenance.

Question 11

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

Answer 11

Corrective maintenance.

Question 12

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

Answer 12

. Current.

Question 13

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

Answer 13

Shorting probe

Question 14

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

Answer 14

Highest.

Question 15

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

Answer 15

Ground

Question 16

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

Answer 16

In series.

Question 17

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

Answer 17

It must be de-energized

Question 18

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

Answer 18

Power losses.

Question 19

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

Answer 19

Opposition to current flow decreases

Question 20

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?

Answer 20

420 ohms.

Question 21

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?

Answer 21

256 microfarads

Question 22

What element controls the number of electrons striking the screen?

Answer 22

Control grid.

Question 23

What element is controlled to focus the beam?

Answer 23

The first anode

Question 24

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

Answer 24

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

Question 25

What is the function of the second anode?

Answer 25

accelerates the electrons emerging from the first anode.

Question 26

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

Answer 26

A greater deflection angle.

Question 27

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

Answer 27

A greater deflection angle

Question 28

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

Answer 28

. Higher potential

Question 29

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

Answer 29

Slower beam.

Question 30

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

Answer 30

A-9. Amplitude and time.

Question 31

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

Answer 31

Amplitude

Question 32

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

Answer 32

A-11. Time and/or frequency relationships.

Question 33

Why are the ends of the deflection plates bent outward?

Answer 33

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

Question 34

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

Answer 34

A-13. Deflection factor.

Question 35

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

Answer 35

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

Question 36

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

Answer 36

A-15. Lower.

Question 37

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

Answer 37

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

Question 38

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

Answer 38

A-17. Dual-trace oscilloscopes.

Question 39

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

Answer 39

A-18. Front end.