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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
Q

A stainless steel used for high temperature applications.
a. SS 104
b. SS 204
c. SS 304
d. None of the above

A

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

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

NOTA

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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

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

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

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

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

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

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

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

nota

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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

aota

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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

A

zinc

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

nota

39
Q

A spherical roller bearing.
a. 1206
b. 2206
c. 3206
d. None of the above

A

2206

40
Q

An example of self-aligning ball bearing.
a. 1205
b. 2205
c. 3205
d. None of the above

A

1205

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

A

C-120

42
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

2-mm pitch thread

43
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

A

25 mm

44
Q

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

A

Single-row deep-groove ball bearing

45
Q

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

A

200 series (light)

46
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

A

0.4%

47
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

Bolt, nuts, and washer

48
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

aota

49
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

two or more different metals

50
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

iron and chromium

51
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

cooper and tin

52
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

Cold-rolled steel

53
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

nota

54
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

Mild steel

55
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

stainless steel

56
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

Engineering plastic

57
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

medium carbon steel

58
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

Low-carbon Steel

59
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

High carbon steel

60
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

Cast iron

61
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

Pig iron

62
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

A

kelmet

63
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

A

bronze

64
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

A

brass

65
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

A

strips

66
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

physical

67
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

chemical

68
Q

Characteristics of metal exhibited
when outside forces are applied to them.
a. Physical
b. Mechanical
c. Chemical
d. None of the above

A

mechanical

69
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

tensile strength

70
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

yield strength

71
Q

The tendency of a material to break
under impact.
a. Ductility
b. Hardness
c. Brittleness
d. None of the above

A

brittleness

72
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

Ductility

73
Q

The material’s resistance to
penetration and permanent
deformation.
a. Ductility
b. Hardness
c. Brittleness
d. None of the above

A

hardness

74
Q

The material’s resistance to being
compressed.
a. Malleability
b. Compressive strength
c. Toughness
d. None of the above

A

Compressive strength

75
Q

The capability of a material to be
shaped and formed.
a. Malleability
b. Compressive strength
c. Toughness
d. None of the above

A

Malleability

76
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

Toughness

77
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

Machinability

78
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

Fusibility

79
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

Grain size

80
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

tool steel

81
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

spring steel

82
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

Cold-rolled steel

83
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

easy identification of similar stock
sizes

84
Q

Pipe schedule matters with the pipe
_____.
a. diameter
b. length
c. thickness
d. None of the above

A

thickness

85
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

stronger

86
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

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

87
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

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

88
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

Self-tapping screw

89
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

nota

90
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

mild steel

91
Q

A machine element used to tighten
bolt.
a. Washer
b. Rivet
c. Nut
d. All of the above

A

nut

4. BELONIO THE FATHER (19 decks)

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