S6_Fundamentals of Automobile Electrical & Electronics Engg

What will happen, if we connect capacitor to DC Supply.

• It allows DC

• It blocks DC

• t rectifies

• None of these

• Hint: Diode is unidirectional and uncontrolled device. In rectifier circuit, diode use as a switch to convert ac to dc for rectification purpose.

What electrical component is used to smooth half wave current signals?

• Resistor

• Diode

• Capacitor

• Voltage regulator

A simple diode rectifier has ‘ripples’ in the output wave which makes it unsuitable as a DC source. To overcome this one can use

• A capacitor in series with a the load resistance

• A capacitor in parallel to the load resistance

• Both of the mentioned situations will work

• None of the mentioned situations will work

Is music playing from a record an analog or digital signal?

• Analog
• Digital

Numbers in a digital code can have _____ values.

• any
• only high
• only low
• only set

Numbers in an analog code can have _____ values.

• any
• only high
• only low
• only set

Which type(s) of signal(s) can be easily corrected to remove noise?

• Analog
• Digital
• Both
• Neither

Analog signals can be converted to digital through a process called _____.

• conversion
• processing
• sampling
• translation

Zener diodes are also known as

• Voltage regulators

• Forward bias diode

• Breakdown diode

• None of the mentioned

Zener diodes can be effectively used in voltage regulator. However, they are these days being replaced by more efficient

• Operational Amplifier

• MOSFET

• Integrated Circuits

• None of the mentioned