Electronics ETA Certification (2025) Actual
Exam Questions and Answers A+ Graded
The ."triboelectric .effect" .causes .what .kind .of .electricity? .- .CORRECT .ANSWER-
Static
The .law .of .static .electrical .charges .states: .- .CORRECT .ANSWER-like .charges
.repel
Minute .particles .that .make .up .all .possible .elements .and .still .retain .the .unique
.chemical .characteristics .of .the .element .are .called ._____________. .- .CORRECT
.ANSWER-Atoms
A .molecule .is .the .smallest .particle .of .matter .that .can .exist .by .itself. .(1) .-
.CORRECT .ANSWER-True .(1)
A .basic .atom .must .contain .what .two .types .of .subatomic .particles? .- .CORRECT
.ANSWER-Electron .and .proton
An .electron .has ._______________. .- .CORRECT .ANSWER-a .Negative .charge
What .two .types .of .energy .are .used .throughout .electronics? .- .CORRECT
.ANSWER-Kinetic .and .potential
Electrical .direct .current .flowing .in .a .wire .produces .a .magnetic .field: .-
.CORRECT .ANSWER-at .right .angles .to .current .flow
A .material .is .magnetized .when .the: .- .CORRECT .ANSWER-domains .are .in
.alignment
A .material .that .can .be .magnetized .easily .falls .into .this .category: .- .CORRECT
.ANSWER-Ferromagnetic
Invisible .lines .of .force .that .surround .a .magnet .are .called .___________________.
.- .CORRECT .ANSWER-magnetic .flux .lines
The .pole .of .a .magnet .from .which .flux .leaves .is .called .the .__________________.
.- .CORRECT .ANSWER-north
_________________ .force .produces .magnetic .flux. .- .CORRECT .ANSWER-
Magnetomotive
, What .class .of .fire .extinguisher .is .used .on .an .oil .fire? .- .CORRECT .ANSWER-B
It .is .dangerous .to .use .wooden .handled .tools .around .high .voltage .due .to .their
.ability .to .absorb .moisture. .(2) .- .CORRECT .ANSWER-True .(2)
In .order .to .eliminate .possible .fire .hazards, .rags .should .be .stored .in
.________________ .- .CORRECT .ANSWER-metal .containers
When .an .individual .receives .an .electrical .shock, .an .immediate .symptom .can .be
._______________. .- .CORRECT .ANSWER-Cardiac .arrest
What .happens .as .protective .eye .goggles .age? .- .CORRECT .ANSWER-Their
.resistance .to .scratching .decreases
Safety .precautions .to .be .followed .when .working .on .high-voltage .equipment
.include .which .of .the .following? .- .CORRECT .ANSWER-All .jewelry .should .be
.removed
The .main .purpose .of .a .safety .observer .is .to: .- .CORRECT .ANSWER-turn .off
.equipment .in .use .and .apply .emergency .first .aid .or .cardiopulmonary
.resuscitation .if .needed
You .should .use .caution .when .talking .to .someone .who .is .operating .electrical
.equipment .because .the .distraction: .- .CORRECT .ANSWER-• .could .damage .the
.equipment
• .both .could .be .injured .
• .could .ruin .an .electronic .device
Which .device .would .most .likely .include .a .light .level .meter? .- .CORRECT
.ANSWER-Camera
The .most .common .functions .of .a .generic .multimeter .are
._________________________. .- .CORRECT .ANSWER-voltmeter, .ammeter .and
.ohmmeter
Digital .multimeters .eliminate .which .of .the .following .disadvantages .of .analog
.meters? .- .CORRECT .ANSWER-• .Low .impedance
• .Poor .accuracy
• .Parallax .errors
The .Wheatstone .bridge .can .be .used .for .precision .measurements .of: .-
.CORRECT .ANSWER-resistance
The .ammeter .setting .on .a .multimeter .indicates .what .type .of .reading? .-
.CORRECT .ANSWER-current
A .resistor .with .color .bands .of .blue, .gray .and .black .has .a .value .of
._______________. .- .CORRECT .ANSWER-68 .ohms .20%
Exam Questions and Answers A+ Graded
The ."triboelectric .effect" .causes .what .kind .of .electricity? .- .CORRECT .ANSWER-
Static
The .law .of .static .electrical .charges .states: .- .CORRECT .ANSWER-like .charges
.repel
Minute .particles .that .make .up .all .possible .elements .and .still .retain .the .unique
.chemical .characteristics .of .the .element .are .called ._____________. .- .CORRECT
.ANSWER-Atoms
A .molecule .is .the .smallest .particle .of .matter .that .can .exist .by .itself. .(1) .-
.CORRECT .ANSWER-True .(1)
A .basic .atom .must .contain .what .two .types .of .subatomic .particles? .- .CORRECT
.ANSWER-Electron .and .proton
An .electron .has ._______________. .- .CORRECT .ANSWER-a .Negative .charge
What .two .types .of .energy .are .used .throughout .electronics? .- .CORRECT
.ANSWER-Kinetic .and .potential
Electrical .direct .current .flowing .in .a .wire .produces .a .magnetic .field: .-
.CORRECT .ANSWER-at .right .angles .to .current .flow
A .material .is .magnetized .when .the: .- .CORRECT .ANSWER-domains .are .in
.alignment
A .material .that .can .be .magnetized .easily .falls .into .this .category: .- .CORRECT
.ANSWER-Ferromagnetic
Invisible .lines .of .force .that .surround .a .magnet .are .called .___________________.
.- .CORRECT .ANSWER-magnetic .flux .lines
The .pole .of .a .magnet .from .which .flux .leaves .is .called .the .__________________.
.- .CORRECT .ANSWER-north
_________________ .force .produces .magnetic .flux. .- .CORRECT .ANSWER-
Magnetomotive
, What .class .of .fire .extinguisher .is .used .on .an .oil .fire? .- .CORRECT .ANSWER-B
It .is .dangerous .to .use .wooden .handled .tools .around .high .voltage .due .to .their
.ability .to .absorb .moisture. .(2) .- .CORRECT .ANSWER-True .(2)
In .order .to .eliminate .possible .fire .hazards, .rags .should .be .stored .in
.________________ .- .CORRECT .ANSWER-metal .containers
When .an .individual .receives .an .electrical .shock, .an .immediate .symptom .can .be
._______________. .- .CORRECT .ANSWER-Cardiac .arrest
What .happens .as .protective .eye .goggles .age? .- .CORRECT .ANSWER-Their
.resistance .to .scratching .decreases
Safety .precautions .to .be .followed .when .working .on .high-voltage .equipment
.include .which .of .the .following? .- .CORRECT .ANSWER-All .jewelry .should .be
.removed
The .main .purpose .of .a .safety .observer .is .to: .- .CORRECT .ANSWER-turn .off
.equipment .in .use .and .apply .emergency .first .aid .or .cardiopulmonary
.resuscitation .if .needed
You .should .use .caution .when .talking .to .someone .who .is .operating .electrical
.equipment .because .the .distraction: .- .CORRECT .ANSWER-• .could .damage .the
.equipment
• .both .could .be .injured .
• .could .ruin .an .electronic .device
Which .device .would .most .likely .include .a .light .level .meter? .- .CORRECT
.ANSWER-Camera
The .most .common .functions .of .a .generic .multimeter .are
._________________________. .- .CORRECT .ANSWER-voltmeter, .ammeter .and
.ohmmeter
Digital .multimeters .eliminate .which .of .the .following .disadvantages .of .analog
.meters? .- .CORRECT .ANSWER-• .Low .impedance
• .Poor .accuracy
• .Parallax .errors
The .Wheatstone .bridge .can .be .used .for .precision .measurements .of: .-
.CORRECT .ANSWER-resistance
The .ammeter .setting .on .a .multimeter .indicates .what .type .of .reading? .-
.CORRECT .ANSWER-current
A .resistor .with .color .bands .of .blue, .gray .and .black .has .a .value .of
._______________. .- .CORRECT .ANSWER-68 .ohms .20%