Question 1

An inverter

Accepted Answer

A)  produces a 180° voltage phase shift. 
B)  does not produce a voltage phase shift. 
C)  is usually used to provide voltage gain. 
D)  requires at least two active devices. 
A)  produces a 180° voltage phase shift. 
B)  does not produce a voltage phase shift. 
C)  is usually used to provide voltage gain. 
D)  requires at least two active devices.

Question 2

In most practical BJT buffers, the value of Vin that is used to drive the transistor into cutoff is approximately equal to

Accepted Answer

A)  VCC. 
B)  VEE + 0.7 V. 
C)  VEE. 
D)  VBE + 0.7 V. 
A)  VCC. 
B)  VEE + 0.7 V. 
C)  VEE. 
D)  VBE + 0.7 V.

Question 3

The time required for IC to increase from 10% of its maximum value to 90% of its maximum value is called

Accepted Answer

A)  delay time. 
B)  storage time. 
C)  rise time. 
D)  fall time. 
A)  delay time. 
B)  storage time. 
C)  rise time. 
D)  fall time.

Question 4

-The circuit in Figure has the following values: RA=RB=10 kΩ and C=0.01 μF. What is the operating frequency of the circuit?

Accepted Answer

A)  7.2 kHz 
B)  3.3 kHz 
C)  4.8 kHz 
D)  3.6 kHz 
A)  7.2 kHz 
B)  3.3 kHz 
C)  4.8 kHz 
D)  3.6 kHz

Question 5

A BJT has the following values: td = 20 nS, tr = 20 nS, ts = 150 nS, and tf = 60 nS. What is a practical limit on the operating frequency of the device in any switching application?

Accepted Answer

A)  6.7 MHz 
B)  4 MHz 
C)  17.5 MHz 
D)  175 kHz 
A)  6.7 MHz 
B)  4 MHz 
C)  17.5 MHz 
D)  175 kHz

Question 6

A BJT has the following values: td = 20 nS, tr = 20 nS, ts = 150 nS, and tf = 60 nS. What is the upper cutoff frequency for the device in any switching application?

Accepted Answer

A)  6.7 MHz 
B)  4 MHz 
C)  17.5 MHz 
D)  175 kHz 
A)  6.7 MHz 
B)  4 MHz 
C)  17.5 MHz 
D)  175 kHz

Question 7

A bistable multivibrator is also known as a

Accepted Answer

A)  free-running multivibrator. 
B)  one-shot. 
C)  flip-flop. 
D)  Schmitt trigger. 
A)  free-running multivibrator. 
B)  one-shot. 
C)  flip-flop. 
D)  Schmitt trigger.

Question 8

A monostable multivibrator is also known as a

Accepted Answer

A)  free-running multivibrator. 
B)  one-shot. 
C)  flip-flop. 
D)  Schmitt trigger. 
A)  free-running multivibrator. 
B)  one-shot. 
C)  flip-flop. 
D)  Schmitt trigger.

Question 9

-A 555 timer is connected as shown in Figure If the cap on pin #6 is being held at 0 V by pin 7, pin #2 must go below for the output from the timer to go high.

Accepted Answer

A)  +5 V 
B)  0 V 
C)  +3 V 
D)  +15 V 
A)  +5 V 
B)  0 V 
C)  +3 V 
D)  +15 V

Question 10

The Schmitt trigger is a

Accepted Answer

A)  voltage level detector. 
B)  bistable multivibrator. 
C)  current level detector. 
D)  astable multivibrator. 
A)  voltage level detector. 
B)  bistable multivibrator. 
C)  current level detector. 
D)  astable multivibrator.

Question 11

The 555 timer can be used as a linear amplifier.

Accepted Answer

A) True 
 B)False

Question 12

-Which of the following switching circuits would have the lowest power dissipation?

Accepted Answer

A)  BJT 
B)  JFET 
C)  MOSFET 
D)  CMOS 
A)  BJT 
B)  JFET 
C)  MOSFET 
D)  CMOS

Question 13

A BJT in cutoff has the same characteristics as a/an

Accepted Answer

A)  open switch. 
B)  closed switch. 
A)  open switch. 
B)  closed switch.

Question 14

-What is the duty cycle of the circuit in Figure ?

Accepted Answer

A)  66.7% 
B)  33% 
C)  50% 
D)  20% 
A)  66.7% 
B)  33% 
C)  50% 
D)  20%

An inverter

In most practical BJT buffers, the value of Vin that is used to drive the transistor into cutoff is approximately equal to

The time required for IC to increase from 10% of its maximum value to 90% of its maximum value is called

-The circuit in Figure has the following values: RA=RB=10 kΩ and C=0.01 μF. What is the operating frequency of the circuit?

A BJT has the following values: td = 20 nS, tr = 20 nS, ts = 150 nS, and tf = 60 nS. What is a practical limit on the operating frequency of the device in any switching application?

A BJT has the following values: td = 20 nS, tr = 20 nS, ts = 150 nS, and tf = 60 nS. What is the upper cutoff frequency for the device in any switching application?

A bistable multivibrator is also known as a

A monostable multivibrator is also known as a

-A 555 timer is connected as shown in Figure If the cap on pin #6 is being held at 0 V by pin 7, pin #2 must go below for the output from the timer to go high.

The Schmitt trigger is a

The 555 timer can be used as a linear amplifier.

-Which of the following switching circuits would have the lowest power dissipation?

A BJT in cutoff has the same characteristics as a/an

-What is the duty cycle of the circuit in Figure ?

Fundamental Solid-State Principles

Diodes

Common Diode Applications: Basic Power Supply Circuits

Common Diode Applications: Clippers, Clampers, Voltage Multipliers, and Displays

Special Applications Diodes

Bipolar Junction Transistors

DC Biasing Circuits

Introduction to Amplifiers

Common-Emitter Amplifiers

Other BJT Amplifiers

Power Amplifiers

Field-Effect Transistors

Mosfets

Amplifier Frequency Response

Operational Amplifiers

Additional Op-Amp Applications

Tuned Amplifiers

Oscillators

Thyristors and Optoelectronics Devices

Discrete and Integrated Voltage Regulators

Filters

Exam 19: Solid-State Switching Circuits

An inverter

In most practical BJT buffers, the value of Vin that is used to drive the transistor into cutoff is approximately equal to

The time required for IC to increase from 10% of its maximum value to 90% of its maximum value is called

-The circuit in Figure has the following values: RA=RB=10 kΩ and C=0.01 μF. What is the operating frequency of the circuit?

A BJT has the following values: td = 20 nS, tr = 20 nS, ts = 150 nS, and tf = 60 nS. What is a practical limit on the operating frequency of the device in any switching application?

A BJT has the following values: td = 20 nS, tr = 20 nS, ts = 150 nS, and tf = 60 nS. What is the upper cutoff frequency for the device in any switching application?

A bistable multivibrator is also known as a

A monostable multivibrator is also known as a

-A 555 timer is connected as shown in Figure If the cap on pin #6 is being held at 0 V by pin 7, pin #2 must go below for the output from the timer to go high.

The Schmitt trigger is a

The 555 timer can be used as a linear amplifier.

-Which of the following switching circuits would have the lowest power dissipation?

A BJT in cutoff has the same characteristics as a/an

-What is the duty cycle of the circuit in Figure ?

Fundamental Solid-State Principles

Diodes

Common Diode Applications: Basic Power Supply Circuits

Common Diode Applications: Clippers, Clampers, Voltage Multipliers, and Displays

Special Applications Diodes

Bipolar Junction Transistors

DC Biasing Circuits

Introduction to Amplifiers

Common-Emitter Amplifiers

Other BJT Amplifiers

Power Amplifiers

Field-Effect Transistors

Mosfets

Amplifier Frequency Response

Operational Amplifiers

Additional Op-Amp Applications

Tuned Amplifiers

Oscillators

Thyristors and Optoelectronics Devices

Discrete and Integrated Voltage Regulators

Filters