Podcast
Questions and Answers
What is the primary role of mathematics in science and technology?
What is the primary role of mathematics in science and technology?
- A tool for making predictions
- The basic language (correct)
- A way to collect data
- A method for testing hypotheses
What is a characteristic of the language of mathematics?
What is a characteristic of the language of mathematics?
- It is only used in technology
- It has a vague vocabulary
- It is only used in science
- It has an exact vocabulary (correct)
Why do scientists and engineers rely heavily on mathematics?
Why do scientists and engineers rely heavily on mathematics?
- Because it is an exact language that follows definite rules (correct)
- Because it is a simple language
- Because it is a new language
- Because it is a complex language
What is a benefit of using mathematics in science and technology?
What is a benefit of using mathematics in science and technology?
What is the relationship between mathematics and the natural world?
What is the relationship between mathematics and the natural world?
What is the decimal equivalent of the binary number 1000001?
What is the decimal equivalent of the binary number 1000001?
What is the value of x in the equation x = (12+6) + (2) 2 + 9(14) √16?
What is the value of x in the equation x = (12+6) + (2) 2 + 9(14) √16?
If an engine has a 16:7 propeller gear ratio, what is the RPM of the propeller when the engine is turning at 2,400 RPM?
If an engine has a 16:7 propeller gear ratio, what is the RPM of the propeller when the engine is turning at 2,400 RPM?
What is the correct order of operations in an algebraic expression?
What is the correct order of operations in an algebraic expression?
What is the value of side a in the right triangle with Angle A = 25°, Side C (hypotenuse) = 16 inches, and Side a = ?
What is the value of side a in the right triangle with Angle A = 25°, Side C (hypotenuse) = 16 inches, and Side a = ?
What is the decimal equivalent of the binary number 1100011?
What is the decimal equivalent of the binary number 1100011?
What is the decimal equivalent of the binary number 1101110?
What is the decimal equivalent of the binary number 1101110?
What is the correct order of operations when evaluating an algebraic expression?
What is the correct order of operations when evaluating an algebraic expression?
What is the value of x in the equation x = (12+6) + (2) 2 + 9(14) √16?
What is the value of x in the equation x = (12+6) + (2) 2 + 9(14) √16?
What is the circumference of a circle with a radius of 7 inches?
What is the circumference of a circle with a radius of 7 inches?
If a shape has a circumference of 7 inches, what is its diameter?
If a shape has a circumference of 7 inches, what is its diameter?
In the right triangle with Angle A = 25°, Side C (hypotenuse) = 16 inches, what is the length of side a?
In the right triangle with Angle A = 25°, Side C (hypotenuse) = 16 inches, what is the length of side a?
What type of corrosion is indicated by rivet 'smoking'?
What type of corrosion is indicated by rivet 'smoking'?
Which type of corrosion is usually caused by an improperly cured wash primer?
Which type of corrosion is usually caused by an improperly cured wash primer?
Which metal is particularly vulnerable to corrosive attack from salt solutions?
Which metal is particularly vulnerable to corrosive attack from salt solutions?
What is required for corrosion to occur in a material?
What is required for corrosion to occur in a material?
What is the purpose of the aluminum oxide film on the surface of aluminum alloys?
What is the purpose of the aluminum oxide film on the surface of aluminum alloys?
In an electrochemical reaction, which part will be eaten away?
In an electrochemical reaction, which part will be eaten away?
What is the basic unit of a chemical element?
What is the basic unit of a chemical element?
What type of corrosion occurs along the grain boundaries within an aluminum alloy?
What type of corrosion occurs along the grain boundaries within an aluminum alloy?
What is the role of the cathode in an electrochemical reaction?
What is the role of the cathode in an electrochemical reaction?
What is the general classification of corrosion that involves the reaction between a metal and its environment?
What is the general classification of corrosion that involves the reaction between a metal and its environment?
What is the charge carried by a neutron?
What is the charge carried by a neutron?
What is necessary for the formation of fretting corrosion?
What is necessary for the formation of fretting corrosion?
What process is used to help prevent stress corrosion in aluminum alloys?
What process is used to help prevent stress corrosion in aluminum alloys?
What can cause intergranular corrosion of aluminum alloys?
What can cause intergranular corrosion of aluminum alloys?
What type of stress can cause corrosion in the presence of a corrosive environment?
What type of stress can cause corrosion in the presence of a corrosive environment?
What is an atom with more electrons than protons called?
What is an atom with more electrons than protons called?
What is the mixture of varsol and kerosene used to remove?
What is the mixture of varsol and kerosene used to remove?
What type of embrittlement can result from the use of non-recommended cleaning compounds?
What type of embrittlement can result from the use of non-recommended cleaning compounds?
What are the two most common types of naphtha?
What are the two most common types of naphtha?
What type of corrosion occurs when a metal is exposed to oxygen?
What type of corrosion occurs when a metal is exposed to oxygen?
Where does metallic ion concentration cell corrosion typically form?
Where does metallic ion concentration cell corrosion typically form?
What type of corrosion occurs when two dissimilar metals are joined?
What type of corrosion occurs when two dissimilar metals are joined?
Study Notes
Corrosion Control
Types of Corrosion
- Rivet "smoking" is an indication of fretting corrosion.
- Filiform corrosion is usually caused by an improperly cured wash primer.
- Magnesium is particularly vulnerable to corrosive attack from salt solutions.
- Intergranular corrosion forms along the grain boundaries within an aluminum alloy.
- Galvanic corrosion occurs when two dissimilar metals are joined in a structure.
Corrosion Formation Requirements
- Presence of a metal that will corrode (anode).
- Presence of a dissimilar conductive metal (cathode) with less tendency to corrode.
- Presence of a conductive liquid electrolyte.
- Electrical contact between the anode and cathode (usually metal to metal contact).
Electrochemical Reactions
- In an electrochemical reaction, the anode is eaten away.
- The basic unit of a chemical element is the atom, made up of a nucleus containing protons and neutrons, surrounded by spinning electrons.
- Protons carry a positive electrical charge, neutrons carry no charge, and electrons carry a negative electrical charge.
Corrosion Prevention and Treatment
- Aluminum alloys are protected from oxidation by the formation of an aluminum oxide film on its surface.
- Delaying surface quenching during heat treatment can cause intergranular corrosion of aluminum alloys.
- Shot-peen metal treatment is used to help prevent stress corrosion.
- Stress corrosion may occur when the metal is subjected to tensile stress in the presence of a corrosive environment.
Cleaning and Chemicals
- Stubborn exhaust stains may be removed with a 1:2 mixture of varsol and kerosene.
- Use of non-recommended cleaning compounds can result in hydrogen embrittlement.
- Aliphatic and aromatic are the two most common types of naphtha.
Corrosion Types and Characteristics
- Oxidation corrosion forms when a metal like aluminum is exposed to a containing oxygen.
- Metallic ion concentration cell corrosion forms in open areas.
- Filiform corrosion is usually caused by an improperly cured wash primer.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Related Documents
Description
Discover the basics of mathematics, the language of science and technology. Learn how math follows definite rules and is used as a tool by scientists and engineers.
