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DESIGN OF AGRICULTURAL MACHINERY - A.T. Belonio and D.A.H. Belonio > ENGINEERING MATERIALS > Flashcards

ENGINEERING MATERIALS Flashcards

1
Q

Materials used in the fabrication of agricultural machines.

a. Standard
b. Fabrication
c. All of the above
d. None of the above

A

c. All of the above

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2
Q

Materials that are ready to adopt as component of agricultural machines such as bearing, belts, pulley, etc.

a. Standard
b. Fabrication
c. All of the above
d. None of the above

A

a. Standard

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3
Q

Materials that need to be processed before it can be used as component of agricultural machines such as bars, sheets, plates, etc.

a. Standard
b. Fabrication
c. All of the above
d. None of the above

A

b. Fabrication

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4
Q

The property of a material to join together with other metal at liquid state.

a. Ductility
b. Workability
c. Fusibility
d. None of the above

A

c. Fusibility

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5
Q

The ability of a material to resist indention.

a. Brittleness
b. Toughness
c. Hardness
d. All of the above

A

c. Hardness

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6
Q

The materials that are rust resistant.

a. GI sheets
b. BI sheets
c. All of the above
d. None of the above

A

a. GI sheets

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7
Q

The recommended material for the manufacture of pin sleeves and hitch pins for walking-type power tillers.

a. Mild steel
b. Cold-rolled steel
c. Spring steel
d. None of the above

A

b. Cold-rolled steel

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8
Q

A material commonly used as axle for agricultural machines.

a. Cold-rolled steel shaft
b. Malleable steel round bar
c. Round cast iron
d. None of the above

A

a. Cold-rolled steel shaft

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9
Q

A kind of steel used for making tractor drawn disk plow bottoms.

a. Tool steel
b. Soft-centered steel
c. Molybdenum steel
d. None of the above

A

b. Soft-centered steel

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10
Q

A steel bar used as machine axle is ___.

a. hot-rolled steel
b. cold-rolled steel
c. mild steel
d. None of the above

A

b. cold-rolled steel

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11
Q

Steel bars commonly used in the manufacture of agricultural machines.

a. Spring steel
b. Mild steel
c. Cold-rolled steel
d. None of the above

A

b. Mild steel

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12
Q

What is the rule-of-thumb in the amperage requirement of a welding rod?

a. 1-in. diameter per 1000 amp
b. 0.001-in. diameter per 1 amp
c. 0.1-in. diameter per 100 amp
d. All of the above

A

d. All of the above

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13
Q

Which of the following metals is the strongest?

a. Tool steel
b. Spring steel
c. Stainless steel
d. All of the above

A

a. Tool steel

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14
Q

The higher the carbon content of the steel, the ___ it becomes.

a. weaker
b. stronger
c. smaller
d. None of the above

A

b. stronger

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15
Q

The standard length of bars available in hardware.

a. 10 ft
b. 20 ft
c. 30 ft
d. None of the above

A

b. 20 ft

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16
Q

When buying angle bars, the right specification is ___.

a. thickness and width
b. thickness and length
c. width and length
d. All of the above

A

a. thickness and width

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17
Q

The required material designation for the construction of gear based on PAES standard.

a. AISI designation 1021
b. AISI designation 1045
c. AISI designation 1080
d. None of the above

A

b. AISI designation 1045

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18
Q

Mild steel with 0.15 to 0.23% carbon content (cold rolled) is designated by American Iron and Steel Institute as ___.

a. AISI 1021
b. AISI 1080
c. AISI 1045
d. None of the above

A

a. AISI 1021

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19
Q

The materials used in the manufacture of disc plows and disc blades for harrows.

a. AISI 1020
b. AISI 1080
c. AISI 1045
d. None of the above

A

b. AISI 1080

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20
Q

A steel with at least 0.80% carbon is designated by American Iron and Steel Institute as ___.

a. AISI 1020
b. AISI 1080
c. AISI 1045
d. None of the above

A

b. AISI 1080

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21
Q

Cold-rolled steel shaft with 0.37% to 0.44% carbon content is designated by American Iron and Steel Institute as ___.

a. AISI 1040
b. AISI 1020
c. AISI 1080
d. None of the above

A

a. AISI 1040

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22
Q

ANSI means ____.

a. American National Steel Institute
b. American National Standard Institute
c. American National Steel and Iron
d. None of the above

A

b. American National Standard Institute

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23
Q

A material that is resistant to salt corrosion.

a. Mild steel
b. Cast iron
c. Stainless steel
d. All of the above

A

c. Stainless steel

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24
Q

A stainless steel used for food industry.

a. SS series 400
b. SS series 300
c. SS series 200
d. None of the above

A

a. SS series 400

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25
Q

A stainless steel used for high temperature applications.

a. SS 104
b. SS 204
c. SS 304
d. None of the above

A

c. SS 304

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26
Q

Stainless steel use for architectural purposes such as for rails for stairways.

a. SS 102
b. SS 202
c. SS 302
d. None of the above

A

b. SS 202

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27
Q

The higher the schedule specification of steel pipes, the lower is its ___.

a. length
b. nominal diameter
c. thickness
d. None of the above

A

d. None of the above

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28
Q

If a metal has ⅛-inch thickness, it is called as ___.

a. strips
b. sheet
c. plate
d. All of the above

A

c. plate

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29
Q

A material 4-ft wide x 8-ft long with 1/8-in. thick is___.

a. metal sheet
b. metal plate
c. metal strip
d. None of the above

A

b. metal plate

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30
Q

A metal sheet with gauge number 14 means___.

a. 14-mm thick
b. 14 pieces of metal sheets in a stock
c. 14 pieces in one-inch thickness
d. None of the above

A

c. 14 pieces in one-inch thickness

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31
Q

In a 2-inch pile of sheet, gauge-20 metal sheet has ___.

a. 20 sheets
b. 40 sheets
c. 60 sheets
d. None of the above

A

b. 40 sheets

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32
Q

Which of the following metal sheets is thicker than gauge 20?

a. Gauge 18
b. Gauge 22
c. Gauge 24
d. Two of the above

A

a. Gauge 18

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33
Q

The higher the gauge number of a metal sheet, the lower the ___.

a. thickness
b. width
c. length
d. None of the above

A

a. thickness

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34
Q

A type of paint most suitable for metals.

a. Latex paint
b. Enamel paint
c. Acrylic paint
d. None of the above

A

c. Acrylic paint

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35
Q

Which of the following materials is used for acrylic paint.

a. Paint thinner
b. Lacquer thinner
c. Primer epoxy
d. None of the above

A

d. None of the above

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36
Q

A coating material used to protect metals from rusting.

a. Primer epoxy
b. Red oxide
c. Red lead
d. All of the above

A

d. All of the above

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37
Q

A substance commonly used as coating to protect iron against corrosion.

a. Tin
b. Zinc
c. Aluminum
d. All of the above

38
Q

Which of the following materials is not corrosion resistant and is used in fertilizer applicator?

a. Wood and plastic
b. Stainless steel
c. All of the above
d. None of the above

A

d. None of the above

39
Q

A spherical roller bearing.

a. 1206
b. 2206
c. 3206
d. None of the above

40
Q

An example of self-aligning ball bearing.

a. 1205
b. 2205
c. 3205
d. None of the above

41
Q

A number C-300 sand paper is finer than ___.

a. C-120
b. C-400
c. C-600
d. None of the above

42
Q

A bolt designated as M10x2 means ___ in diameter

a. 10 mm
b. 12 mm
c. 20 mm
d. None of the above

43
Q

M10x2 is a ___ threaded bolt.

a. 2-mm pitch thread
b. 0.2-in. pitch thread
c. 0.002-in. pitch thread
d. None of the above

A

a. 2-mm pitch thread

44
Q

The bearing is designated as 6205. What is the bore diameter of the bearing?

a. 20 mm
b. 25 mm
c. 0.5 mm
d. None of the above

45
Q

The bearing is designated as 6205.

What is the type of the bearing?

a. Thrust bearing
b. Tapered-roller bearing
c. Single-row deep-groove ball bearing
d. Spherical-roller bearing
e. None of the above

A

c. Single-row deep-groove ball bearing

46
Q

The bearing is designated as 6205.

What series of the bearing does it belong?

a. 100 series (extra light)
b. 200 series (light)
c. 300 series (medium)
d. 400 series (heavy)
e. None of the above

A

b. 200 series (light)

47
Q

A medium carbon steel plate is designated as AISI 1040, the carbon content is ___.

a. 10%
b. 1%
c. 40%
d. 0.4%
e. None of the above

48
Q

Which of the following is not considered as fabrication materials for agricultural machines?

a. Angle bar
b. BI sheet
c. Bolt, nuts, and washer
d. None of the above

A

c. Bolt, nuts, and washer

49
Q

Which of the following are standard materials for agricultural machines?

a. Screws
b. Bolts, nuts, and washer
c. Bearings
d. All of the above

A

d. All of the above

50
Q

An alloy is a mixture of ___ .

a. the same metal
b. two or more different metals
c. one metal and the other is non-metal
d. None of the above

A

b. two or more different metals

51
Q

Stainless steel is generally a mixture of ___ .

a. iron and chromium
b. iron and copper
c. iron and aluminum
d. None of the above

A

a. iron and chromium

52
Q

Bronze is generally a mixture of____.

a. copper and tin
b. copper and aluminum
c. copper and iron
d. None of the above

A

a. copper and tin

53
Q

A medium carbon steel (0.25 to 0.50% carbon) which are commonly used for parts of machines requiring greater strength and hardness, such as axles and connecting rods.

a. Mild steel
b. Stainless steel
c. Cold-rolled steel
d. None of the above

A

c. Cold-rolled steel

54
Q

Which of the following is not considered as engineering plastic?

a. Polystyrene
b. PVC
c. Polypropylene
d. Polyethylene
e. None of the above

A

e. None of the above

55
Q

An easy to cut and weld steel containing 0.15 to 0.25% carbon and is commonly used in the construction of agricultural machinery.

a. Mild steel
b. Cold-rolled steel
c. Hot-rolled steel
d. None of the above

A

a. Mild steel

56
Q

A steel material with high resistance to corrosion and oxidation containing 1% Ni, 11-14% Cr, 0.6% Mn, and 0.6% Si and is commonly used in food processing industry.

a. Mild steel
b. Food steel
c. Stainless steel
d. None of the above

A

c. Stainless steel

57
Q

A group of plastic materials that has better mechanical and/or thermal properties than the more widely used commodity plastic.

a. Engineering plastic
b. Organic plastic
c. Inorganic plastic
d. None of the above

A

a. Engineering plastic

58
Q

Steel classification containing 0.25 to 0.50% carbon usually used in making structural and machinery steel.

a. Low carbon steel
b. Medium carbon steel
c. High carbon steel
d. None of the above

A

b. Medium carbon steel

59
Q

A steel classification with carbon content not exceeding 0.25% and is commonly used as a material in the fabrication of agricultural machines.

a. Low-carbon Steel
b. Medium-carbon steel
c. High-carbon steel
d. None of the above

A

a. Low-carbon Steel

60
Q

A steel classification with carbon content of above 0.50% and is usually used in the manufacture of spring and tool steel.

a. Low carbon steel
b. Medium carbon steel
c. High carbon steel
d. None of the above

A

c. High carbon steel

61
Q

An iron material with 1.7 to 6.7% carbon content that is low cost and with good casting property, high compressive strength, high wearing resistance, brittle and lower tensile strength.

a. Pure iron
b. Pig iron
c. Cast iron
d. None of the above

A

c. Cast iron

62
Q

An iron produced in a blast furnace by melting ore of hematite or magnetite with limestone and coke.

a. Pure iron
b. Pig iron
c. Cast iron
d. None of the above

A

b. Pig iron

63
Q

A copper alloy containing 20-40% lead commonly used as bearing for diesel engine.

a. Brass
b. Bronze
c. Kelmet
d. None of the above

64
Q

A copper alloy containing 5-20% tin commonly used in the manufacture of machine parts such as bushing, spring, pipe, fittings, sprayer and pump.

a. Brass
b. Bronze
c. Kelmet
d. None of the above

65
Q

A copper alloy containing 10-40% zinc alloy commonly used in the manufacture of radiator, pipe, screen, and instrument parts.

a. Brass
b. Bronze
c. Kelmet
d. None of the above

66
Q

A long sheet of metal less than 12-in. wide commonly used in the manufacture of building materials.

a. Sheet
b. Plate
c. Strips
d. None of the above

67
Q

Characteristics of metals that are not acted upon by outside forces which include color, density, weight, and electrical and heat conductivity.

a. Physical
b. Mechanical
c. Chemical
d. None of the above

A

a. Physical

68
Q

Characteristics of metals giving their composition and their reaction to other metals such as resistance to corrosion.

a. Physical
b. Mechanical
c. Chemical
d. None of the above

A

c. Chemical

69
Q

Characteristics of metal exhibited when outside forces are applied to them.

a. Physical
b. Mechanical
c. Chemical
d. None of the above

A

b. Mechanical

70
Q

The greatest stress seen in the material’s resistance to being pulled apart and is sometimes called “ultimate strength”.

a. Tensile strength
b. Yield strength
c. Compression strength
d. None of the above

A

a. Tensile strength

71
Q

A classification of stress usually designated at a 0.2% permanent elongation.

a. Tensile strength
b. Yield strength
c. Compression strength
d. None of the above

A

b. Yield strength

72
Q

The tendency of a material to break under impact.

a. Ductility
b. Hardness
c. Brittleness
d. None of the above

A

c. Brittleness

73
Q

An indication of how much a material is deformed as it is stretched.

a. Ductility
b. Hardness
c. Brittleness
d. None of the above

A

a. Ductility

74
Q

The material’s resistance to penetration and permanent deformation.

a. Ductility
b. Hardness
c. Brittleness
d. None of the above

A

b. Hardness

75
Q

The material’s resistance to being compressed.

a. Malleability
b. Compressive strength
c. Toughness
d. None of the above

A

b. Compressive strength

76
Q

The capability of a material to be shaped and formed.

a. Malleability
b. Compressive strength
c. Toughness
d. None of the above

A

a. Malleability

77
Q

The ability of a material to withstand bending and twisting and a desirable property for loader frame and for crankshaft.

a. Malleability
b. Compressive strength
c. Toughness
d. None of the above

A

c. Toughness

78
Q

Characterized by ease with which metals are machined or cut by a machine tool.

a. Ductility
b. Machinability
c. Toolability
d. None of the above

A

b. Machinability

79
Q

The property to which metal, when it is at the liquid state, easily join with other metals.

a. Fixability
b. Connectivity
c. Fusibility
d. None of the above

A

c. Fusibility

80
Q

The microscopic measurement of metal that shows differences in sizes that relates directly to strength.

a. Grain size
b. Particle size
c. Material size
d. None of the above

A

a. Grain size

81
Q

A type of steel used in turning machines when cutting metals.

a. Mild steel
b. Spring steel
c. Tool steel
d. None of the above

A

c. Tool steel

82
Q

A steel used as shock absorber attached to the wheel and to the thresher support frame in mobile rice thresher.

a. Mild steel
b. Spring steel
c. Tool steel
d. None of the above

A

b. Spring steel

83
Q

A steel type commonly used as pegtooth for axial-flow rice threshers.

a. Mild steel
b. Cold-rolled steel
c. Tool steel
d. None of the above

A

b. Cold-rolled steel

84
Q

Fabrication materials being sold by construction suppliers such as angle bars, round bars, pipes, etc are usually painted at the end of each piece for the purpose of ______.

a. making it attractive to the potential buyers.
b. preventing the material from rusting
c. easy identification of similar stock sizes
d. None of the above

A

c. easy identification of similar stock sizes

85
Q

Pipe schedule matters with the pipe _____.

a. diameter
b. length
c. thickness
d. None of the above

A

c. thickness

86
Q

The higher the schedule number of the pipe, the ____ is the pipe.

a. bigger
b. weaker
c. stronger
d. None of the above

A

c. stronger

87
Q

Prevailing price of stainless steel sheet.

a. Times 1 of the MS sheet of the same dimension and thickness
b. Times 2 of the MS sheet of the same dimension and thickness
c. Times 3 of the MS sheet of the same dimension and thickness
d. None of the above

A

c. Times 3 of the MS sheet of the same dimension and thickness

88
Q

Prevailing price of perforated sheet.

a. Times 1 of the MS sheet of the same dimension and thickness.
b. Times 2 of the MS sheet of the same dimension and thickness.
c. Times 3 of the MS sheet of the same dimension and thickness.
d. None of the above

A

b. Times 2 of the MS sheet of the same dimension and thickness.

89
Q

A screw used to fix metal parts together.

a. Self-tapping screw
b. Cap screw
c. Lag screw
d. None of the above

A

a. Self-tapping screw

90
Q

A screw with shield to properly fix the materials together.

a. Cap screw
b. Tex screw
c. Self-tapping screw
d. None of the above

A

d. None of the above

91
Q

A steel material containing 0.035 to 0.4% carbon and is widely used for the production of steel plates, structural steels, bars, etc.

a. Mild steel
b. Hard steel
c. Soft-centered steel
d. All of the above

A

a. Mild steel

92
Q

A machine element used to tighten bolt.

a. Washer
b. Rivet
c. Nut
d. All of the above

DESIGN OF AGRICULTURAL MACHINERY - A.T. Belonio and D.A.H. Belonio (14 decks)

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