Circuits MCQ
Thermocouple is a
Answer
Correct Answer:
Temperature transducer
Note: This Question is unanswered, help us to find answer for this one
What is a junction?
Answer
Correct Answer:
Contact or connection between two or more wires or cables.
Note: This Question is unanswered, help us to find answer for this one
What is the unit of work and energy?
Note: This Question is unanswered, help us to find answer for this one
What does JFET stand for?
Answer
Correct Answer:
"junction field effect transistor"
Note: This Question is unanswered, help us to find answer for this one
What is a Jack?
Answer
Correct Answer:
Socket or connector into which a plug may be inserted.
Note: This Question is unanswered, help us to find answer for this one
What is insulation resistance?
Answer
Correct Answer:
Resistance of insulating material
Note: This Question is unanswered, help us to find answer for this one
What is the definition of insulating material?
Answer
Correct Answer:
Material that will prevent the flow of current due to its chemical composition.
Note: This Question is unanswered, help us to find answer for this one
What is an insulating material?
Answer
Correct Answer:
A material that prevents the flow of current due to its chemical composition.
Note: This Question is unanswered, help us to find answer for this one
What does it mean when a material is insulated?
Answer
Correct Answer:
When a non conducting material is used to isolate conducting materials from one another.
Note: This Question is unanswered, help us to find answer for this one
What is input impedance?
Answer
Correct Answer:
Opposition to the flow of signal current at the input of a circuit or load.
Note: This Question is unanswered, help us to find answer for this one
What is the name of the heat radiation whose frequencies are above the microwave frequency band and below red in the visible band?
Note: This Question is unanswered, help us to find answer for this one
What is the primary function of an inductor?
Answer
Correct Answer:
To introduce inductance into a circuit
Note: This Question is unanswered, help us to find answer for this one
What is the main reason for wrapping the conductor into a coil?
Answer
Correct Answer:
To concentrate the magnetic lines of force
Note: This Question is unanswered, help us to find answer for this one
What is the state of a material called when it emits light after being heated?
Answer
Correct Answer:
Incandescence
Note: This Question is unanswered, help us to find answer for this one
What is impedance?
Answer
Correct Answer:
The total opposition to the flow of current offered by a circuit
Note: This Question is unanswered, help us to find answer for this one
What is the full form for IGFET?
Answer
Correct Answer:
Insulated gate field effect transistor
Note: This Question is unanswered, help us to find answer for this one
What is an IC voltage regulator used for?
Answer
Correct Answer:
To hold the output voltage of a power supply constant over a wide range of load variations.
Note: This Question is unanswered, help us to find answer for this one
What does IC stand for?
Answer
Correct Answer:
Integrated circuit
Note: This Question is unanswered, help us to find answer for this one
What does Hertz measure?
Answer
Correct Answer:
Frequency
Note: This Question is unanswered, help us to find answer for this one
What is the unit of frequency equal to one cycle per second?
Answer
Correct Answer:
Hz (Hertz)
Note: This Question is unanswered, help us to find answer for this one
What is the basic unit of inductance?
Note: This Question is unanswered, help us to find answer for this one
What does a half wave rectifier do?
Answer
Correct Answer:
Converts AC to pulsating DC by eliminating either the negative or the positive alternation of each input AC cycle.
Note: This Question is unanswered, help us to find answer for this one
What does a ground do in an electrical circuit?
Answer
Correct Answer:
A ground is used as the common wiring point or reference in a circuit.
Note: This Question is unanswered, help us to find answer for this one
What is the metric prefix for 1 billion?
Note: This Question is unanswered, help us to find answer for this one
What is a generator?
Answer
Correct Answer:
A device used to convert mechanical energy to electrical energy.
Note: This Question is unanswered, help us to find answer for this one
What does FF stand for in the context of Flip Flops?
Answer
Correct Answer:
Flip Flop
Note: This Question is unanswered, help us to find answer for this one
What is an abbreviation for Flip Flop?
Note: This Question is unanswered, help us to find answer for this one
What is a filter?
Answer
Correct Answer:
A network consisting of capacitors, resistors and/or inductors used to pass certain frequencies and block others.
Note: This Question is unanswered, help us to find answer for this one
What is the main purpose of a filter in a network?
Answer
Correct Answer:
To pass certain frequencies and block others.
Note: This Question is unanswered, help us to find answer for this one
What is a filament?
Answer
Correct Answer:
A thin thread of carbon or tungsten which produces heat or light with the passage of current.
Note: This Question is unanswered, help us to find answer for this one
What does a filament produce with the passage of current?
Answer
Correct Answer:
Heat or light
Note: This Question is unanswered, help us to find answer for this one
What does FET stand for?
Answer
Correct Answer:
Field effect transistor
Note: This Question is unanswered, help us to find answer for this one
What is the abbreviation for Field effect transistor?
Note: This Question is unanswered, help us to find answer for this one
What carrying information between two points?
Answer
Correct Answer:
Fiber optics
Note: This Question is unanswered, help us to find answer for this one
What is the information that is conveyed by the fiber optics?
Answer
Correct Answer:
Laser's light output
Note: This Question is unanswered, help us to find answer for this one
What are ferrites used for?
Answer
Correct Answer:
To make electromagnets
Note: This Question is unanswered, help us to find answer for this one
What is a ferrite?
Answer
Correct Answer:
A compound composed of iron oxide, a metallic oxide and ceramic.
Note: This Question is unanswered, help us to find answer for this one
What is a ferrite-core inductor?
Answer
Correct Answer:
An inductor wound on a ferrite core.
Note: This Question is unanswered, help us to find answer for this one
What is an inductor wound on a ferrite core?
Answer
Correct Answer:
Ferrite-core inductor
Note: This Question is unanswered, help us to find answer for this one
What is a ferrite bead?
Answer
Correct Answer:
Ferrite composition in the form of a bead
Note: This Question is unanswered, help us to find answer for this one
What is the purpose of a ferrite bead?
Answer
Correct Answer:
To increase the inductance of a wire
Note: This Question is unanswered, help us to find answer for this one
What is the main advantage of Ferrite?
Answer
Correct Answer:
Eddy current losses are low at high frequencies
Note: This Question is unanswered, help us to find answer for this one
What is the full name for the element Fe?
Note: This Question is unanswered, help us to find answer for this one
What is the name of the transistor in which there are no charge carriers in the channel when the gate source voltage is zero?
Answer
Correct Answer:
Enhancement-mode MOSFET
Note: This Question is unanswered, help us to find answer for this one
What is the emitter?
Answer
Correct Answer:
The semiconductor region from which charge carriers are injected into the base of a bipolar junction transistor.
Note: This Question is unanswered, help us to find answer for this one
What is the purpose of the core in an electromagnet?
Answer
Correct Answer:
It provides an easy path for the magnetic lines of force.
Note: This Question is unanswered, help us to find answer for this one
What is a capacitor having an electrolyte between the two plates called?
Answer
Correct Answer:
Electrolytic capacitor
Note: This Question is unanswered, help us to find answer for this one
What is electric polarization?
Answer
Correct Answer:
A displacement of bound charges in a dielectric when placed in an electric field.
Note: This Question is unanswered, help us to find answer for this one
Electrical current produced by the movement of free electrons is known as?
Answer
Correct Answer:
Electron flow
Note: This Question is unanswered, help us to find answer for this one
What is the direction of electron flow?
Answer
Correct Answer:
Opposite to that of current
Note: This Question is unanswered, help us to find answer for this one
What is an electron?
Answer
Correct Answer:
A subatomic particle of an atom with a negative charge that orbits the positively-charged nucleus.
Note: This Question is unanswered, help us to find answer for this one
What is electric charge also known as?
Answer
Correct Answer:
A static charge.
Note: This Question is unanswered, help us to find answer for this one
What is electric charge?
Answer
Correct Answer:
Electric energy stored on the surface of a material.
Note: This Question is unanswered, help us to find answer for this one
What causes an eddy current?
Answer
Correct Answer:
Moving through a non-uniform magnetic field
Note: This Question is unanswered, help us to find answer for this one
What is a DIAC?
Answer
Correct Answer:
A diode that conducts elecrical only after its breakover voltage has been reached.
Note: This Question is unanswered, help us to find answer for this one
What is the time for collector current to reach 10% of its maximum value in a BJT switching circuit?
Answer
Correct Answer:
Delay time
Note: This Question is unanswered, help us to find answer for this one
What is the logarithmic representation of gain or loss?
Answer
Correct Answer:
Decibel - (dB)
Note: This Question is unanswered, help us to find answer for this one
What is a Decade?
Answer
Correct Answer:
A frequency factor of ten
Note: This Question is unanswered, help us to find answer for this one
What is a dead short?
Answer
Correct Answer:
Short circuit having zero resistance
Note: This Question is unanswered, help us to find answer for this one
What is the full form of DC?
Answer
Correct Answer:
Direct Current
Note: This Question is unanswered, help us to find answer for this one
What is DC power supply?
Answer
Correct Answer:
Any source of DC power for electrical equipment.
Note: This Question is unanswered, help us to find answer for this one
What is a DC load line?
Answer
Correct Answer:
A graph representing all possible combinations of voltage and current for a given load resistor in an amplifier.
Note: This Question is unanswered, help us to find answer for this one
What does the abbreviation "DC" stand for?
Answer
Correct Answer:
Direct Current
Note: This Question is unanswered, help us to find answer for this one
What is the connected configuration of two bipolar junction transistors called?
Answer
Correct Answer:
Darlington pair
Note: This Question is unanswered, help us to find answer for this one
What is Damping?
Answer
Correct Answer:
Reduction in magnitude of oscillation due to energy being dissipated as heat.
Note: This Question is unanswered, help us to find answer for this one
What is the unit of damping?
Answer
Correct Answer:
Reduction in magnitude of oscillation
Note: This Question is unanswered, help us to find answer for this one
What does the abbreviation "DAC" stand for?
Answer
Correct Answer:
Digital to analog converter
Note: This Question is unanswered, help us to find answer for this one
What is the definition of a center tap?
Answer
Correct Answer:
Midway connection between the two ends of a winding
Note: This Question is unanswered, help us to find answer for this one
What is a Cathode?
Answer
Correct Answer:
A negatively charged electrode
Note: This Question is unanswered, help us to find answer for this one
What is a carbon resistor made of?
Answer
Correct Answer:
Carbon granules mixed with a binder
Note: This Question is unanswered, help us to find answer for this one
What is a carbon resistor?
Answer
Correct Answer:
A resistor of fixed value made by mixing carbon granules with a binder which is molded and then baked.
Note: This Question is unanswered, help us to find answer for this one
What causes a change in resistance in a carbon microphone?
Answer
Correct Answer:
Pressure variation in carbon granules
Note: This Question is unanswered, help us to find answer for this one
What is a carbon-film resistor?
Answer
Correct Answer:
Device made by depositing a thin carbon film on a ceramic form.
Note: This Question is unanswered, help us to find answer for this one
What is a capacitor?
Answer
Correct Answer:
An electronic component having capacitive reactance.
Note: This Question is unanswered, help us to find answer for this one
What is the basic unit of capacitance?
Note: This Question is unanswered, help us to find answer for this one
What is capacitance?
Answer
Correct Answer:
The ability of a capacitor to store an electrical charge.
Note: This Question is unanswered, help us to find answer for this one
What is calibration?
Answer
Correct Answer:
To adjust the correct value of a reading by comparison to a standard.
Note: This Question is unanswered, help us to find answer for this one
What does "CAD" stand for?
Answer
Correct Answer:
"computer aided designs"
Note: This Question is unanswered, help us to find answer for this one
What does the abbreviation "CAD" stand for?
Answer
Correct Answer:
Computer aided designs
Note: This Question is unanswered, help us to find answer for this one
What is a cable?
Answer
Correct Answer:
A group of two or more insulated wires
Note: This Question is unanswered, help us to find answer for this one
Which among the following is not a characteristic of a Bipolar junction transistor?
Answer
Correct Answer:
Three terminal device
Note: This Question is unanswered, help us to find answer for this one
What is a Bipolar junction transistor?
Answer
Correct Answer:
A three terminal device in which emitter to collector current is controlled by base current.
Note: This Question is unanswered, help us to find answer for this one
What is the base of a binary number system?
Note: This Question is unanswered, help us to find answer for this one
What is the name given to a number system having only two symbols?
Note: This Question is unanswered, help us to find answer for this one
What does DC voltage applied to a device to control its operation mean?
Note: This Question is unanswered, help us to find answer for this one
What is Bias?
Answer
Correct Answer:
A DC voltage applied to a device to control its operation.
Note: This Question is unanswered, help us to find answer for this one
What is a baud?
Answer
Correct Answer:
A unit of signaling speed equal to the number of signal events per second
Note: This Question is unanswered, help us to find answer for this one
What does a battery convert energy to?
Answer
Correct Answer:
Electrical
Note: This Question is unanswered, help us to find answer for this one
What is a battery?
Answer
Correct Answer:
A DC voltage source containing two or more cells that convert chemical energy to electrical energy.
Note: This Question is unanswered, help us to find answer for this one
What is the base?
Answer
Correct Answer:
The region that lies between the emitter and collector of a bipolar junction transistor (BJT).
Note: This Question is unanswered, help us to find answer for this one
Which of the following is not a part of a transistor?
Note: This Question is unanswered, help us to find answer for this one
What does the abbreviation BW stand for?
Answer
Correct Answer:
Bandwidth
Note: This Question is unanswered, help us to find answer for this one
What does bandwidth refer to?
Answer
Correct Answer:
The numerical difference between upper and lower frequencies of a band of electromagnetic radiation
Note: This Question is unanswered, help us to find answer for this one
Which of the following is NOT a part of a band-stop filter?
Note: This Question is unanswered, help us to find answer for this one
What is the main purpose of a band-pass filter?
Answer
Correct Answer:
To pass a band of frequencies between a lower cut-off frequency (f1) and a higher cut-off frequency (f2)
Note: This Question is unanswered, help us to find answer for this one
What is a balanced bridge?
Answer
Correct Answer:
Condition that occurs when a bridge circuit is adjusted to produce a zero output.
Note: This Question is unanswered, help us to find answer for this one
Voltage with no polarity
Answer
Correct Answer:
A voltage with alternating polarity
Note: This Question is unanswered, help us to find answer for this one
What does BJT stand for?
Answer
Correct Answer:
Bipolar junction transistor
Note: This Question is unanswered, help us to find answer for this one
What is active region?
Answer
Correct Answer:
The region of BJT operation between saturation and cutoff used for linear amplification.
Note: This Question is unanswered, help us to find answer for this one
What does an active filter use?
Answer
Correct Answer:
An amplifier
Note: This Question is unanswered, help us to find answer for this one
What is an active component?
Answer
Correct Answer:
A component that changes the amplitude of a signal between output and input.
Note: This Question is unanswered, help us to find answer for this one
What does an active component do?
Answer
Correct Answer:
Changes the amplitude of a signal between output and input.
Note: This Question is unanswered, help us to find answer for this one
What does AC stand for in AC power supply?
Answer
Correct Answer:
Alternating Current
Note: This Question is unanswered, help us to find answer for this one
What does AC load line represent?
Answer
Correct Answer:
AC output voltage and current for an amplifier
Note: This Question is unanswered, help us to find answer for this one
What is an AC load line?
Answer
Correct Answer:
A graph representing all possible combinations of AC output voltage and current for an amplifier.
Note: This Question is unanswered, help us to find answer for this one
What is an AC generator?
Answer
Correct Answer:
A device that transforms mechanical energy into AC electrical power.
Note: This Question is unanswered, help us to find answer for this one
What does AC/DC stand for?
Answer
Correct Answer:
Equipment that will operate from an AC or DC power source.
Note: This Question is unanswered, help us to find answer for this one
What does AC coupling do?
Answer
Correct Answer:
Passes an AC signal while blocking a DC voltage.
Note: This Question is unanswered, help us to find answer for this one
What does AC coupling stand for?
Answer
Correct Answer:
Circuit that passes an AC signal while blocking a DC voltage.
Note: This Question is unanswered, help us to find answer for this one
What does AC stand for?
Answer
Correct Answer:
Alternating current
Note: This Question is unanswered, help us to find answer for this one