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ESAS 2.0

ESAS 2.0
99問 • 2年前
  • Almeda, Abegail S.
    • 通報

    問題一覧

  • 1

    What do you call tin mill steel without a coating?

    Black plate

  • 2

    What combination of elements has high electrical resistance, high corrosion resistance, and high strength at red heat temperatures, making it useful in resistance heating?

    Nichrome

  • 3

    A steel cannot quainty for stainless prefx until it has at least how many percent of chromium?

    10%

  • 4

    What do you add to compensate for the remaining high iron oxide content of the steel?

    Deoxidizers

  • 5

    Which of the following cast irons is a high-carbon, iron-carbon-silicon alloy?

    Gray Iron

  • 6

    Which cast iron is hard and wear resistant?

    White Iron

  • 7

    What is considered as the general purpose, oldest type and widely used cast iron?

    Gray Iron

  • 8

    The effect of manganese in cast iron is to?

    reduce hardness by combining with sulfur below 0.5% and increa hardness above 0.5 %

  • 9

    The effect of aluminum in cast iron is to?

    deoxidize molten cast iron

  • 10

    The effect of silicon in cast iron is to?

    softens iron and increases ductility below 3.25%, hardens iron above 3.25 % and increase acid and corrosion resistance above 13 %

  • 11

    The effect of silicon in cast iron is to?

    Soften iron and increases ductility below 3.25%, harden iron above 3.25% and increase acid and corrosion resistance above 13%

  • 12

    are you an is sad to be abundant in nature. About how many percent of the earths crust is iron?

    5%

  • 13

    What is the advantage of quench hardening?

    All of the choices

  • 14

    what is the lowest temperature diffusion hardening process and does not require a quench?

    Nitriding

  • 15

    The following statements are true except one. Which one?

    Quench hardened steel does not require tempering to prevent brittleness.

  • 16

    Which of the following is a requirement for hardening a steel?

    All of the choices

  • 17

    What fields of study encompasses the procurement and production of metals?

    Metallurgy

  • 18

    What do you call earth and stone missed with the iron oxides?

    Gangue

  • 19

    What is the hole that has been previously burn in an oxygen poor environment?

    Coke

  • 20

    What is the most common allergen ingredient in copper?

    Zinc

  • 21

    What refers to the case hardening process by which the carbon content of the steel near the surface of a part is increased?

    Carburizing

  • 22

    What is the process of heating a hardened steel to any temperature below the lower critical temperature, followed by any desire rate of cooling?

    Tempering

  • 23

    What is defined as an intimate mechanical mixture of two or more pieces having a definite composition and a definite temperature of transformation within the solid state?

    Eutectoid

  • 24

    what is the most undesirable of all the elements commonly found in steels?

    Phosphorus

  • 25

    What impurity in steel can cause "red shortness" which means this steel becomes unworkable at the high temperature

    sulfur

  • 26

    What is a method of case hardening involving diffusion in which the steel the biggest hardened its machined, heat treated, place in an airtight box and heated to about 1000°F?

    Nitriding

  • 27

    What is the process of producing a hard surface in a steel having a sufficiently high carbon content to respond to hardening by a rapid cooling of the surface?

    Flame hardening

  • 28

    What is the most common reinforcement for polymer composites?

    Glassfiber

  • 29

    In electrochemistry oxidation is a loss of ____ .

    electron

  • 30

    What is the process of putting back the lost electrons to convert the ion back to a metal?

    Reduction

  • 31

    Oxidation in an electrochemical cell always takes place where?

    at the anode

  • 32

    Reduction in an electrochemical cell always takes place where?

    at the cathode

  • 33

    What do you call a fluid that conducts electricicty?

    Electrolyte

  • 34

    The ____ of an environment serves as ameasure of the strength of acids or bases.

    pH measurement

  • 35

    What is the pH value of a neutral solution?

    7

  • 36

    The solution with a pH values from one to six are ____.

    acid

  • 37

    the solutions with pH values from 7 to 12 are ___.

    alkaline

  • 38

    pH stands for _____ .

    positive hydrogen ion

  • 39

    What is defined as a local corrosion damaged characterized by surface cavities.

    Pitting

  • 40

    What do you call the removal of zinc from brasses?

    Dezincfication

  • 41

    What is the scaling off of a surface in flakes or layers as the result of corrosion?

    Expoliation

  • 42

    What corrosion of occurs under organic coatings on metals is fine, wavy hairlines?

    Filiform corrosion

  • 43

    Indicate the false statement about corrosion

    The corroded member in a corrosion cell is the cathode

  • 44

    Steel is an alloy of iron and carbon with limits on the amount of carbon to less than ___ percent

    2

  • 45

    What is the approximate chromium range of a ferritic stainless steel?

    16% to 20%

  • 46

    Indicate the false statement about stainless steel

    stainless steels have tensile moduli greater than those of carbon and alloy steels

  • 47

    What are the four major alloying elements of austenitic stainless steels

    Iron, chromium, carbon and nickel

  • 48

    The electrical resistance of stainless steel's can be as much as times that ___ of a carbon steel

    6

  • 49

    What refers to a shape achieved by allowing a liquid to solidify in the mold?

    Casting

  • 50

    Which of the following is NOT a hardware requirement for die casting

    Metal mold (machine halves)

  • 51

    What does iron has nodular or Spheroidal graphite?

    Ductile iron

  • 52

    What is the process for making glass reinforced shapes that can be generated by pulling resin – impregnated glass strands through a die?

    Continuous pultrusion

  • 53

    What is natural substance that makes up a significant portion of all plant life

    Cellulose

  • 54

    What term is used to denote a family of thermosetting polymers that are reaction products of alcohols and acids

    Alkydes

  • 55

    What is the AISI-SAE steel designation for nickel 3.50 alloy?

    23XX

  • 56

    What is the AISI-SAE designation for results for resulfurized and rephosphorized carbon steel

    12XX

  • 57

    The group H steel can be used in what temperature range

    600°C to 1100°C

  • 58

    The following are primary alloying ingredients of group H steels except

    Cobalt

  • 59

    The chrome of molybdenum steels contain how many percent of molybdenum?

    0.20

  • 60

    The chrome vanadium steels contain how many percent of vanadium?

    0.15 to 0.30

  • 61

    Manganese steel usually contains how many percent of manganese?

    11 to 14

  • 62

    The wear– resistance of this material is attributed to its ability to ____ that is, the hardness is increase greatly when the steel is cold worked

    Strain Harden

  • 63

    The special chrome steels of the stainless variety contain how many percent of chromium

    11 to 17

  • 64

    What refers to the application any process whereby the surface of steel is altered so that it will become hard

    Casehardening

  • 65

    What refers to the deterioration of material by oscillatory relative motion of small amplitude (22 to 100 mhu m) between two solid surfaces in corrosive environment?

    Fretting corrosion

  • 66

    What refers to the ability of steel to be hardened through to its center in a large section?

    Hardenability

  • 67

    what is the equilibrium temperature of transformation of austenite to pearlite?

    1333°F

  • 68

    what structure is formed when transformation of occurs at temperatures down to the knee of the curve ?

    Pearlite

  • 69

    What allotrophic form of iron refers to iron that has a temperature range of room temperature to 1670° F

    Alpha iron

  • 70

    The alpha iron will become paramagnetic at temperature above ____.

    770°C

  • 71

    What steel surface hardening process requires heating at 1000°F for up to 100 hours in an ammonia atmosphere, followed by slow cooling?

    Nitriding

  • 72

    What is the chief ore of tin?

    Cassiterite

  • 73

    What is the cheaf ore of zinc?

    Sphalerite

  • 74

    what is the chief ore of titanium

    Ilmanite

  • 75

    What is the mixture of gibbsite and diaspore, of which aluminum is derived?

    Bauxite

  • 76

    The term "brass is very commonly used to designate any alloy primarily ____ and _____.

    Copper and zinc

  • 77

    the term "bronze" is used to designate any alloy containing:

    copper and tin

  • 78

    In a system of designating wrought aluminum alloys, a four digit number is used. What does the first digit indicates?

    The alloy group

  • 79

    in a system of designating wrought aluminum alloys, what does the second digit represents?

    The modification of the other group of impurity limits

  • 80

    In the system of designating wrought aluminum alloys, the letter if that follows the number indicates what condition of the alloy?

    As fabricated

  • 81

    The following alloys are the chief alloys that are diecast except:

    Manganese alloys

  • 82

    what is the minimum tensile strength of gray cast iron class 50?

    50000 lbf/in^2

  • 83

    what is the carbon content of wrought iron?

    Less than 0.1 percent

  • 84

    Nico is an alloy containing how many percent nickel ?

    14%

  • 85

    The most common beta brass with a composition of 60% copper and 40% zinc is called ____ .

    Muntz metal

  • 86

    Redbrass contains about how many percent of zinc ?

    30%

  • 87

    Indicate the false statement.

    Tin is relatively soluble in copper

  • 88

    What is the most abundant metal in nature

    Aluminum

  • 89

    Indicate the false statement about aluminum

    It has poor thermal and electrical conductivity

  • 90

    What is the effect to aluminum with iron as the alloying element

    Reduce hot – cracking tendencies in casting

  • 91

    What is the effect the aluminum with copper alloying element?

    Increases strength up to about 12%

  • 92

    Which off the following are too well-known nickel alloys with magnetic properties ideal for permanent magnets?

    Alnico ang cunife

  • 93

    The Portland cement is manufacture from the following element except :

    Asphalt

  • 94

    What gives the average facial of stress to strain for materials operating in the nonlinear region in the stress strain diagram?

    Secant modulus

  • 95

    What is the ratio of the ultimate failure strain to the yielding strain?

    Ductility

  • 96

    What what does the term means the harden ability of a steel specimen?

    Jominy end-quench test

  • 97

    What steel relief process is used with hypoeuctectoid steels to change martenite into pearlite

    Tempering

  • 98

    What is another term of tempering?

    Drawing or toughening

  • 99

    All are steel surface hardeing processes except one. Which one?

    Annealing

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    問題一覧

  • 1

    What do you call tin mill steel without a coating?

    Black plate

  • 2

    What combination of elements has high electrical resistance, high corrosion resistance, and high strength at red heat temperatures, making it useful in resistance heating?

    Nichrome

  • 3

    A steel cannot quainty for stainless prefx until it has at least how many percent of chromium?

    10%

  • 4

    What do you add to compensate for the remaining high iron oxide content of the steel?

    Deoxidizers

  • 5

    Which of the following cast irons is a high-carbon, iron-carbon-silicon alloy?

    Gray Iron

  • 6

    Which cast iron is hard and wear resistant?

    White Iron

  • 7

    What is considered as the general purpose, oldest type and widely used cast iron?

    Gray Iron

  • 8

    The effect of manganese in cast iron is to?

    reduce hardness by combining with sulfur below 0.5% and increa hardness above 0.5 %

  • 9

    The effect of aluminum in cast iron is to?

    deoxidize molten cast iron

  • 10

    The effect of silicon in cast iron is to?

    softens iron and increases ductility below 3.25%, hardens iron above 3.25 % and increase acid and corrosion resistance above 13 %

  • 11

    The effect of silicon in cast iron is to?

    Soften iron and increases ductility below 3.25%, harden iron above 3.25% and increase acid and corrosion resistance above 13%

  • 12

    are you an is sad to be abundant in nature. About how many percent of the earths crust is iron?

    5%

  • 13

    What is the advantage of quench hardening?

    All of the choices

  • 14

    what is the lowest temperature diffusion hardening process and does not require a quench?

    Nitriding

  • 15

    The following statements are true except one. Which one?

    Quench hardened steel does not require tempering to prevent brittleness.

  • 16

    Which of the following is a requirement for hardening a steel?

    All of the choices

  • 17

    What fields of study encompasses the procurement and production of metals?

    Metallurgy

  • 18

    What do you call earth and stone missed with the iron oxides?

    Gangue

  • 19

    What is the hole that has been previously burn in an oxygen poor environment?

    Coke

  • 20

    What is the most common allergen ingredient in copper?

    Zinc

  • 21

    What refers to the case hardening process by which the carbon content of the steel near the surface of a part is increased?

    Carburizing

  • 22

    What is the process of heating a hardened steel to any temperature below the lower critical temperature, followed by any desire rate of cooling?

    Tempering

  • 23

    What is defined as an intimate mechanical mixture of two or more pieces having a definite composition and a definite temperature of transformation within the solid state?

    Eutectoid

  • 24

    what is the most undesirable of all the elements commonly found in steels?

    Phosphorus

  • 25

    What impurity in steel can cause "red shortness" which means this steel becomes unworkable at the high temperature

    sulfur

  • 26

    What is a method of case hardening involving diffusion in which the steel the biggest hardened its machined, heat treated, place in an airtight box and heated to about 1000°F?

    Nitriding

  • 27

    What is the process of producing a hard surface in a steel having a sufficiently high carbon content to respond to hardening by a rapid cooling of the surface?

    Flame hardening

  • 28

    What is the most common reinforcement for polymer composites?

    Glassfiber

  • 29

    In electrochemistry oxidation is a loss of ____ .

    electron

  • 30

    What is the process of putting back the lost electrons to convert the ion back to a metal?

    Reduction

  • 31

    Oxidation in an electrochemical cell always takes place where?

    at the anode

  • 32

    Reduction in an electrochemical cell always takes place where?

    at the cathode

  • 33

    What do you call a fluid that conducts electricicty?

    Electrolyte

  • 34

    The ____ of an environment serves as ameasure of the strength of acids or bases.

    pH measurement

  • 35

    What is the pH value of a neutral solution?

    7

  • 36

    The solution with a pH values from one to six are ____.

    acid

  • 37

    the solutions with pH values from 7 to 12 are ___.

    alkaline

  • 38

    pH stands for _____ .

    positive hydrogen ion

  • 39

    What is defined as a local corrosion damaged characterized by surface cavities.

    Pitting

  • 40

    What do you call the removal of zinc from brasses?

    Dezincfication

  • 41

    What is the scaling off of a surface in flakes or layers as the result of corrosion?

    Expoliation

  • 42

    What corrosion of occurs under organic coatings on metals is fine, wavy hairlines?

    Filiform corrosion

  • 43

    Indicate the false statement about corrosion

    The corroded member in a corrosion cell is the cathode

  • 44

    Steel is an alloy of iron and carbon with limits on the amount of carbon to less than ___ percent

    2

  • 45

    What is the approximate chromium range of a ferritic stainless steel?

    16% to 20%

  • 46

    Indicate the false statement about stainless steel

    stainless steels have tensile moduli greater than those of carbon and alloy steels

  • 47

    What are the four major alloying elements of austenitic stainless steels

    Iron, chromium, carbon and nickel

  • 48

    The electrical resistance of stainless steel's can be as much as times that ___ of a carbon steel

    6

  • 49

    What refers to a shape achieved by allowing a liquid to solidify in the mold?

    Casting

  • 50

    Which of the following is NOT a hardware requirement for die casting

    Metal mold (machine halves)

  • 51

    What does iron has nodular or Spheroidal graphite?

    Ductile iron

  • 52

    What is the process for making glass reinforced shapes that can be generated by pulling resin – impregnated glass strands through a die?

    Continuous pultrusion

  • 53

    What is natural substance that makes up a significant portion of all plant life

    Cellulose

  • 54

    What term is used to denote a family of thermosetting polymers that are reaction products of alcohols and acids

    Alkydes

  • 55

    What is the AISI-SAE steel designation for nickel 3.50 alloy?

    23XX

  • 56

    What is the AISI-SAE designation for results for resulfurized and rephosphorized carbon steel

    12XX

  • 57

    The group H steel can be used in what temperature range

    600°C to 1100°C

  • 58

    The following are primary alloying ingredients of group H steels except

    Cobalt

  • 59

    The chrome of molybdenum steels contain how many percent of molybdenum?

    0.20

  • 60

    The chrome vanadium steels contain how many percent of vanadium?

    0.15 to 0.30

  • 61

    Manganese steel usually contains how many percent of manganese?

    11 to 14

  • 62

    The wear– resistance of this material is attributed to its ability to ____ that is, the hardness is increase greatly when the steel is cold worked

    Strain Harden

  • 63

    The special chrome steels of the stainless variety contain how many percent of chromium

    11 to 17

  • 64

    What refers to the application any process whereby the surface of steel is altered so that it will become hard

    Casehardening

  • 65

    What refers to the deterioration of material by oscillatory relative motion of small amplitude (22 to 100 mhu m) between two solid surfaces in corrosive environment?

    Fretting corrosion

  • 66

    What refers to the ability of steel to be hardened through to its center in a large section?

    Hardenability

  • 67

    what is the equilibrium temperature of transformation of austenite to pearlite?

    1333°F

  • 68

    what structure is formed when transformation of occurs at temperatures down to the knee of the curve ?

    Pearlite

  • 69

    What allotrophic form of iron refers to iron that has a temperature range of room temperature to 1670° F

    Alpha iron

  • 70

    The alpha iron will become paramagnetic at temperature above ____.

    770°C

  • 71

    What steel surface hardening process requires heating at 1000°F for up to 100 hours in an ammonia atmosphere, followed by slow cooling?

    Nitriding

  • 72

    What is the chief ore of tin?

    Cassiterite

  • 73

    What is the cheaf ore of zinc?

    Sphalerite

  • 74

    what is the chief ore of titanium

    Ilmanite

  • 75

    What is the mixture of gibbsite and diaspore, of which aluminum is derived?

    Bauxite

  • 76

    The term "brass is very commonly used to designate any alloy primarily ____ and _____.

    Copper and zinc

  • 77

    the term "bronze" is used to designate any alloy containing:

    copper and tin

  • 78

    In a system of designating wrought aluminum alloys, a four digit number is used. What does the first digit indicates?

    The alloy group

  • 79

    in a system of designating wrought aluminum alloys, what does the second digit represents?

    The modification of the other group of impurity limits

  • 80

    In the system of designating wrought aluminum alloys, the letter if that follows the number indicates what condition of the alloy?

    As fabricated

  • 81

    The following alloys are the chief alloys that are diecast except:

    Manganese alloys

  • 82

    what is the minimum tensile strength of gray cast iron class 50?

    50000 lbf/in^2

  • 83

    what is the carbon content of wrought iron?

    Less than 0.1 percent

  • 84

    Nico is an alloy containing how many percent nickel ?

    14%

  • 85

    The most common beta brass with a composition of 60% copper and 40% zinc is called ____ .

    Muntz metal

  • 86

    Redbrass contains about how many percent of zinc ?

    30%

  • 87

    Indicate the false statement.

    Tin is relatively soluble in copper

  • 88

    What is the most abundant metal in nature

    Aluminum

  • 89

    Indicate the false statement about aluminum

    It has poor thermal and electrical conductivity

  • 90

    What is the effect to aluminum with iron as the alloying element

    Reduce hot – cracking tendencies in casting

  • 91

    What is the effect the aluminum with copper alloying element?

    Increases strength up to about 12%

  • 92

    Which off the following are too well-known nickel alloys with magnetic properties ideal for permanent magnets?

    Alnico ang cunife

  • 93

    The Portland cement is manufacture from the following element except :

    Asphalt

  • 94

    What gives the average facial of stress to strain for materials operating in the nonlinear region in the stress strain diagram?

    Secant modulus

  • 95

    What is the ratio of the ultimate failure strain to the yielding strain?

    Ductility

  • 96

    What what does the term means the harden ability of a steel specimen?

    Jominy end-quench test

  • 97

    What steel relief process is used with hypoeuctectoid steels to change martenite into pearlite

    Tempering

  • 98

    What is another term of tempering?

    Drawing or toughening

  • 99

    All are steel surface hardeing processes except one. Which one?

    Annealing