Question 1

Square waves are full of ____.
A) phase distortion
B) amplitude distortion
C) frequency distortion
D) harmonic distortion

Accepted Answer

Square waves contain harmonics that are not present in the original signal, resulting in harmonic distortion.

Question 2

Inverters are also known as ____.
A) thyristors
B) diodes
C) oscillators
D) rectifiers

Accepted Answer

Inverters are electronic devices that convert DC (direct current) to AC (alternating current). Oscillators generate AC signals, which is the main function of inverters. Thyristors and diodes are types of semiconductor devices used in electronic circuits, but they are not the same as inverters. Rectifiers convert AC to DC, which is the opposite of what an inverter does.

Question 3

Nikola Tesla discovered the "Tesla Effect."

Accepted Answer

The "Tesla Effect" is not a recognized scientific discovery attributed to Nikola Tesla. Tesla is known for his contributions to the development of alternating current (AC) electrical systems and other innovations.

Question 4

You can say that a given voltage is positive with respect to the negative point.

Accepted Answer

When we say a voltage is positive, it means that the potential at that point is higher than the reference point, which is usually the negative terminal of a battery or power supply. Therefore, we can say that a voltage is positive with respect to the negative point.

Question 5

In Edison's time, the power that we used for our homes was AC.

Accepted Answer

In Edison's time, the primary form of power Edison promoted for homes was Direct Current (DC), while Alternating Current (AC) was championed by others, notably George Westinghouse and Nikola Tesla.

Question 6

The basic operation of a(n) ____ is to pass current in one direction only.
A) inverter
B) rectifier
C) converter
D) transformer

Accepted Answer

A rectifier is a device that converts alternating current (AC), which periodically reverses direction, to direct current (DC), which flows in only one direction. This is accomplished using diodes, which allow current to flow in one direction only. In other words, a rectifier passes current in one direction only.

Question 7

You should never discharge the capacitor by ____.
A) shorting the terminals
B) disconnecting it without turning it off
C) heating it
D) turning it off

Accepted Answer

Shorting the terminals of a capacitor can cause a large current to flow, which can damage the capacitor or other components in the circuit.

Question 8

Ethernet is a computer networking technology for ____.
A) Wide Area Networks (WANs)
B) Metropolitan Area Networks (MANs)
C) Local Area Networks (LANs)
D) Wireless Local Area Networks (WLANs)

Accepted Answer

Ethernet is primarily used for Local Area Networks (LANs) which are networks that cover a small geographical area such as an office or a building. It is not typically used for Wide Area Networks (WANs) or Metropolitan Area Networks (MANs). While Ethernet can be used in conjunction with wireless technology to create a Wireless Local Area Network (WLAN), by itself it is not considered a WLAN.

Question 9

The USB 2.0 specification has a data transfer rate up to ____.
A) 60 Mbit/s
B) 120 Mbit/s
C) 240 Mbit/s
D) 480 Mbit/s

Accepted Answer

The USB 2.0 specification has a data transfer rate of up to 480 Mbit/s.

Question 10

What is frequency measured in?

Accepted Answer

The answer of What is frequency measured in?...

Question 11

How do power line communication systems operate?

Accepted Answer

The answer of How do power line communication systems operate?...

Question 12

What does TCP stand for?

Accepted Answer

The answer of What does TCP stand for?...

Question 13

What is the bridge rectifier also called?

Accepted Answer

The answer of What is the bridge rectifier also called?...

Question 14

A bridge rectifier uses diodes to provide full wave rectification.

Accepted Answer

A bridge rectifier consists of four diodes, which are used for full wave rectification of AC input signal.

Question 15

What is Bluetooth?

Accepted Answer

The answer of What is Bluetooth?...

Question 16

In 1957, the solid-state inverter became practicable with the introduction of the ____.
A) thyristor
B) rectifier
C) bridge rectifier
D) diode

Accepted Answer

The thyristor, also known as a silicon-controlled rectifier, was the key component that made practical the solid-state inverter, which converts direct current to alternating current. The thyristor can handle high current and voltage levels, making it ideal for power conversion applications. The rectifier, bridge rectifier, and diode are all important components in power electronics, but they are not crucial to the operation of an inverter.

Question 17

In a bridge rectifier, the ____ of the output is the same regardless of the polarity of the input.
A) quality
B) efficiency
C) delay
D) polarity

Accepted Answer

The purpose of a bridge rectifier is to convert AC voltage to DC voltage by allowing current to flow in only one direction. This is achieved by using a configuration of diodes that causes the output voltage to always have the same polarity regardless of the polarity of the input. Therefore, the correct answer is D.

Question 18

A motor generator set is a DC motor driving a(n) ____.
A) rectifier
B) AC alternator
C) bridge rectifier
D) inverter

Accepted Answer

A motor generator set is a combination of a DC motor and an AC alternator. The DC motor drives the AC alternator, which generates AC power. This AC power is rectified to DC power through a rectifier, which is often included as part of the motor generator set. However, the AC alternator is the main component of the set.

Question 19

One hertz is equal to one complete cycle per second.

Accepted Answer

This is the definition of hertz, so it is true.

Question 20

The Modified Square Wave is also called the ____.
A) Quasi Cosine Wave
B) Cosine Wave
C) Modified Sine Wave
D) Tangent Wave

Accepted Answer

The Modified Square Wave is also known as the Modified Sine Wave, as it is a distorted form of a sine wave. It is not a cosine wave or a tangent wave, and although it has some characteristics of a cosine wave, it is not commonly referred to as a Quasi Cosine Wave.

Quiz 1: Conversion

Square waves are full of ____.

Inverters are also known as ____.

Nikola Tesla discovered the "Tesla Effect."

You can say that a given voltage is positive with respect to the negative point.

In Edison's time, the power that we used for our homes was AC.

The basic operation of a(n) ____ is to pass current in one direction only.

You should never discharge the capacitor by ____.

Ethernet is a computer networking technology for ____.

The USB 2.0 specification has a data transfer rate up to ____.

What is frequency measured in?

How do power line communication systems operate?

What does TCP stand for?

What is the bridge rectifier also called?

A bridge rectifier uses diodes to provide full wave rectification.

What is Bluetooth?

In 1957, the solid-state inverter became practicable with the introduction of the ____.

In a bridge rectifier, the ____ of the output is the same regardless of the polarity of the input.

A motor generator set is a DC motor driving a(n) ____.

One hertz is equal to one complete cycle per second.

The Modified Square Wave is also called the ____.