Question 1

In an electroplating operation, what is the negative terminal called?&#10;A) anode&#10;B) cathode

Accepted Answer

The negative terminal in an electroplating operation is called the cathode. The anode is the positive terminal.

Question 2

An electrolyte may be made from water and an additive such as salt, a(n) _____, or a(n) _____.&#10;A) acid; alkali&#10;B) base; acid&#10;C) cathode; anode&#10;D) anode; electrode

Accepted Answer

A

Question 3

What is the process of depositing one type of metal onto another using electricity?&#10;A) electrolysis&#10;B) electroplating&#10;C) electrolyte&#10;D) ionization

Accepted Answer

The process of depositing one type of metal onto another using electricity is known as electroplating. This involves passing an electric current through a solution containing dissolved metal ions of the metal you want to deposit onto the surface of the other metal, which acts as the cathode. The metal ions are reduced at the cathode, creating a thin layer of the desired metal on the surface. This process is widely used in manufacturing for decorative and corrosion-resistant coatings.

Question 4

Once an arc is started in a gas, the voltage required to maintain conduction is _____.&#10;A) the same&#10;B) one-half&#10;C) reduced&#10;D) double

Accepted Answer

Once an arc is started in a gas, the voltage required to maintain conduction is reduced. This is due to the fact that the ionized gas provides a conductive path with less resistance than the non-ionized gas, therefore less voltage is required to maintain the arc.

Question 5

Who discovered and named X-rays?&#10;A) George Ohm&#10;B) Wilhelm Roentgen&#10;C) Gustav Kirchhoff&#10;D) J.J. Thomson

Accepted Answer

Wilhelm Roentgen discovered and named X-rays in 1895.

Question 6

The operating principles of the cathode-ray tube were discovered by _____.&#10;A) George Ohm&#10;B) Wilhelm Roentgen&#10;C) Gustav Kirchhoff&#10;D) J.J. Thomson

Accepted Answer

The operating principles of the cathode-ray tube were discovered by J.J. Thomson in the late 1800s. His experiments with cathode rays led to the discovery of the electron and the development of the first models of the CRT.

Question 7

As the atmospheric pressure increases, the amount of voltage required to reach ionization potential _____.&#10;A) does not change&#10;B) doubles&#10;C) increases&#10;D) decreases

Accepted Answer

As the atmospheric pressure increases, the density of air increases, which means that the gas molecules are closer together. This makes it harder for electrons to move through the gas without colliding with gas molecules, thus requiring more voltage to achieve ionization.

Question 8

Lead-acid batteries use an electrolyte containing _____.&#10;A) cuprous cyanide&#10;B) table salt&#10;C) metallic salt&#10;D) sulfuric acid

Accepted Answer

Lead-acid batteries use sulfuric acid as their electrolyte. This is because sulfuric acid has a high electrical conductivity and can easily dissociate into ions, making it an effective medium for the transfer of charge within the battery.

Question 9

What term refers to the amount of voltage an electron must possess to cause ionization?&#10;A) electrolysis point&#10;B) ion point&#10;C) electron impact&#10;D) ionization potential

Accepted Answer

The term that refers to the amount of voltage an electron must possess to cause ionization is the ionization potential. The other options are either not related or not accurately describing the concept.

Question 10

X-rays result when cathode rays strike _____.&#10;A) semiconductor&#10;B) metal&#10;C) gas&#10;D) liquid

Accepted Answer

The answer of X-rays result when cathode rays strike _____.&#10;A)...

Question 11

If a magnesium atom combines with two chlorine atoms, the result is _____.&#10;A) table salt&#10;B) sulfuric acid&#10;C) metallic salt&#10;D) alkali

Accepted Answer

The answer of If a magnesium atom combines with two...

Question 12

What is the most important factor in ionization of a gas?&#10;A) electrolysis&#10;B) electron impact&#10;C) ionization&#10;D) electroplating

Accepted Answer

The answer of What is the most important factor in...

Question 13

In an electroplating operation, what is he positive terminal called?&#10;A) anode&#10;B) cathode

Accepted Answer

The answer of In an electroplating operation, what is he...

Question 14

What is the process of separating elements electrically?&#10;A) electroplating&#10;B) electrolysis&#10;C) ionizing

Accepted Answer

The answer of What is the process of separating elements...

Question 15

An ion is an atom that has had a(n) _____ added or removed.&#10;A) electron&#10;B) neutron&#10;C) proton&#10;D) quark

Accepted Answer

The answer of An ion is an atom that has...

Question 16

A copper electroplating process sometimes uses a compound called _____.&#10;A) table salt&#10;B) copper sulfate&#10;C) sulfuric acid&#10;D) metallic salt

Accepted Answer

The answer of A copper electroplating process sometimes uses a...

Question 17

Plating copper onto iron often involves a poisonous solid called _____.&#10;A) sulfuric acid&#10;B) table salt&#10;C) metallic salt&#10;D) cuprous cyanide

Accepted Answer

The answer of Plating copper onto iron often involves a...

Question 18

One of the most common uses for electroplating is the production of pure _____.

Accepted Answer

The answer of One of the most common uses for...

Deck 12: Conduction in Liquids and Gases