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Analog-designs Questions Set 43:

Quiz Mode

Which digital audio transmission system is best suited for good fidelity?

8-bit PCM

13-bit PCM

32-bit PCM

Non-uniform quantization PCM

Solution:

What is another name for an aluminum heat sink?

Folded-Fin heat sink

Bonded-Fin heat sink

Sleeve bearing type heat sink

Extruded heat sink

Solution:

What is the correct sequence of the following steps in the fabrication of a monolithic, Bipolar junction transistor?

3, 4, 1, 2

4, 3, 1, 2

3, 4, 2, 1

4, 3, 2, 1

Solution:

Which of the following statements is true for a Zener diode?

Capacitance varies with reverse bias

None of the above

It is a highly doped diode

The voltage across it is constant

Solution:

What type of diode circuit is used as Voltage Limiters and Amplitude Selectors?

Voltage Clipping Circuits

Voltage Clamping Circuits

Voltage Doubler Circuits

Voltage Divider Circuits

Solution:

How can the duty cycle of an astable multivibrator be changed?

By adding another capacitor to the circuit

By adding diodes to the circuit

By adding an inductor to the circuit

The duty cycle cannot be changed

Solution:

If R(t) is the auto-correlation function of a real, wide-sense stationary random process, then which of the following is not true?

The mean square value of the process is R(0)

R(t) = R(-t)

|R(t)| ≤ R(0)

R(t) = -R(-t)

Solution:

Which of the following statements about a common base transistor configuration is true?

It has very low input impedance

It has very low output impedance

Its current gain is greater than unity

Its voltage gain is very low

Solution:

A voltage multiplier circuit, using diodes and capacitors, is suitable for which type of device?

high voltage high current device

high voltage low current device

low voltage low current device

low voltage high current device

Solution:

When a BJT reaches saturation, which of the following statements are not true?

The collector current IC cannot increase further

The base current IB, cannot increase further

The collector-to-emitter voltage, VCE is due to the non-zero internal resistance of BJT

VCE(saturation) is the minimum voltage drop between C and E

Analog-designs Questions Set 43:

Which digital audio transmission system is best suited for good fidelity?

Solution:

What is another name for an aluminum heat sink?

Solution:

What is the correct sequence of the following steps in the fabrication of a monolithic, Bipolar junction transistor?

Solution:

Which of the following statements is true for a Zener diode?

Solution:

What type of diode circuit is used as Voltage Limiters and Amplitude Selectors?

Solution:

How can the duty cycle of an astable multivibrator be changed?

Solution:

If R(t) is the auto-correlation function of a real, wide-sense stationary random process, then which of the following is not true?

Solution:

Which of the following statements about a common base transistor configuration is true?

Solution:

A voltage multiplier circuit, using diodes and capacitors, is suitable for which type of device?

Solution:

When a BJT reaches saturation, which of the following statements are not true?

Solution:

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