What electrical component opposes the flow of current in a DC circuit?
BResistor
technician pool
Subelement T6 question review
All 46 official questions with the exact winning phrase marked.
What type of component is often used as an adjustable volume control?
CPotentiometer
What electrical parameter is controlled by a potentiometer?
BResistance
What electrical component stores energy in an electric field?
BCapacitor
What type of electrical component consists of conductive surfaces separated by an insulator?
DCapacitor
What type of electrical component stores energy in a magnetic field?
CInductor
What electrical component is typically constructed as a coil of wire?
DInductor
What is the function of an SPDT switch?
CA single circuit is switched between one of two other circuits
What type of switch is represented by component 3 in figure T-2?
ASingle-pole single-throw
Which of the following battery chemistries is rechargeable?
DAll these choices are correct
Which of the following battery chemistries is not rechargeable?
BCarbon-zinc
Which is true about forward voltage drop in a diode?
AIt is lower in some diode types than in others
What electronic component allows current to flow in only one direction?
CDiode
Which of these components can be used as an electronic switch?
CTransistor
Which of the following components can consist of three regions of semiconductor material?
BTransistor
What type of transistor has a gate, drain, and source?
BField-effect
How is the cathode lead of a semiconductor diode often marked on the package?
BWith a stripe
What causes a light-emitting diode (LED) to emit light?
AForward current
What does the abbreviation FET stand for?
DField Effect Transistor
What are the names for the electrodes of a diode?
CAnode and cathode
Which of the following can provide power gain?
BTransistor
What does the term gain mean in amplifiers?
DAll these choices are correct
What are the names of the electrodes of a bipolar junction transistor?
BEmitter, base, collector
What is an electrical diagram using standard component symbols called?
CSchematic
What is component 1 in figure T-1?
AResistor
What is component 2 in figure T-1?
BTransistor
What is component 3 in figure T-1?
CLamp
What is component 4 in figure T-1?
DBattery
What is component 6 in figure T-2?
BCapacitor
What is component 8 in figure T-2?
DLight emitting diode
What is component 9 in figure T-2?
CVariable resistor
What is component 4 in figure T-2?
DTransformer
What is component 3 in figure T-3?
DVariable inductor
What is component 4 in figure T-3?
AAntenna
Which of the following is accurately represented in electrical schematics?
CComponent connections
Which of the following devices or circuits changes an alternating current into a varying direct current signal?
BRectifier
What is a relay?
AAn electrically-controlled switch
Which of the following is a reason to use shielded wire?
CTo prevent coupling of unwanted signals to or from the wire
Which of the following displays an electrical quantity as a numeric value?
CMeter
What type of circuit controls the amount of voltage from a power supply?
ARegulator
What component changes 120 V AC power to a lower AC voltage for other uses?
BTransformer
Which of the following is commonly used as a visual indicator?
ALED
Which of the following is combined with an inductor to make a resonant circuit?
DCapacitor
What is the name of a device that combines several semiconductors and other components into one package?
CIntegrated circuit
What is the function of component 2 in figure T-1?
CControl the flow of current
Which of the following is a resonant or tuned circuit?
AAn inductor and a capacitor in series or parallel