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4. BELONIO THE FATHER > 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

AOTA

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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

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

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

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

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

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

COLLED-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

COLD-ROLLED STEEL SHAFTS

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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

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

AOTA

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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

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

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

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

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

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

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

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

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

AISI 1040

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22
Q

ANSI

A

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

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

SS series 400

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25
A stainless steel used for high temperature applications. a. SS 104 b. SS 204 c. SS 304 d. None of the above
SS 304
26
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
SS 202
27
The higher the schedule specification of steel pipes, the lower is its ___. a. length b. nominal diameter c. thickness d. None of the above
NOTA
28
If a metal has ⅛-inch thickness, it is called as ___. a. strips b. sheet c. plate d. All of the above
PLATE
29
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
METAL PLATE
30
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
14 pieces in one-inch thickness
31
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
40 SHEETS
32
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
GAUGE 18
33
The higher the gauge number of a metal sheet, the lower the ___. a. thickness b. width c. length d. None of the above
thickness
34
A type of paint most suitable for metals. a. Latex paint b. Enamel paint c. Acrylic paint d. None of the above
Acrylic paint
35
Which of the following materials is used for acrylic paint. a. Paint thinner b. Lacquer thinner c. Primer epoxy d. None of the above
nota
36
A coating material used to protect metals from rusting. a. Primer epoxy b. Red oxide c. Red lead d. All of the above
aota
37
A substance commonly used as coating to protect iron against corrosion. a. Tin b. Zinc c. Aluminum d. All of the above
zinc
38
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
nota
39
A spherical roller bearing. a. 1206 b. 2206 c. 3206 d. None of the above
2206
40
An example of self-aligning ball bearing. a. 1205 b. 2205 c. 3205 d. None of the above
1205
41
A number C-300 sand paper is finer than ___. a. C-120 b. C-400 c. C-600 d. None of the above
C-120
42
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
2-mm pitch thread
43
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
25 mm
44
What is the type of the bearing in Item 44? a. Thrust bearing b. Tapered-roller bearing c. Single-row deep-groove ball bearing d. Spherical-roller bearing e. None of the above
Single-row deep-groove ball bearing
45
What series of the bearing in Item 44 belong? a. 100 series (extra light) b. 200 series (light) c. 300 series (medium) d. 400 series (heavy) e. None of the above
200 series (light)
46
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
0.4%
47
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
Bolt, nuts, and washer
48
Which of the following are standard materials for agricultural machines? a. Screws b. Bolts, nuts, and washer c. Bearings d. All of the above
aota
49
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
two or more different metals
50
Stainless steel is generally a mixture of ___ . a. iron and chromium b. iron and copper c. iron and aluminum d. None of the above
iron and chromium
51
Bronze is generally a mixture of____. a. copper and tin b. copper and aluminum c. copper and iron d. None of the above
cooper and tin
52
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
Cold-rolled steel
53
Which of the following is not considered as engineering plastic? a. Polystyrene b. PVC c. Polypropylene d. Polyethylene e. None of the above
nota
54
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
Mild steel
55
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
stainless steel
56
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
Engineering plastic
57
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
medium carbon steel
58
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
Low-carbon Steel
59
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
High carbon steel
60
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
Cast iron
61
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
Pig iron
62
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
kelmet
63
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
bronze
64
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
brass
65
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
strips
66
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
physical
67
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
chemical
68
Characteristics of metal exhibited when outside forces are applied to them. a. Physical b. Mechanical c. Chemical d. None of the above
mechanical
69
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
tensile strength
70
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
yield strength
71
The tendency of a material to break under impact. a. Ductility b. Hardness c. Brittleness d. None of the above
brittleness
72
An indication of how much a material is deformed as it is stretched. a. Ductility b. Hardness c. Brittleness d. None of the above
Ductility
73
The material’s resistance to penetration and permanent deformation. a. Ductility b. Hardness c. Brittleness d. None of the above
hardness
74
The material’s resistance to being compressed. a. Malleability b. Compressive strength c. Toughness d. None of the above
Compressive strength
75
The capability of a material to be shaped and formed. a. Malleability b. Compressive strength c. Toughness d. None of the above
Malleability
76
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
Toughness
77
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
Machinability
78
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
Fusibility
79
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
Grain size
80
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
tool steel
81
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
spring steel
82
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
Cold-rolled steel
83
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
easy identification of similar stock sizes
84
Pipe schedule matters with the pipe _____. a. diameter b. length c. thickness d. None of the above
thickness
85
The higher the schedule number of the pipe, the ____ is the pipe. a. bigger b. weaker c. stronger d. None of the above
stronger
86
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
Times 3 of the MS sheet of the same dimension and thickness
87
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
Times 2 of the MS sheet of the same dimension and thickness.
88
A screw used to fix metal parts together. a. Self-tapping screw b. Cap screw c. Lag screw d. None of the above
Self-tapping screw
89
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
nota
90
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
mild steel
91
A machine element used to tighten bolt. a. Washer b. Rivet c. Nut d. All of the above
nut

4. BELONIO THE FATHER (19 decks)

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