ENGINEERING MATERIALS Flashcards

1
Q
Materials used in the fabrication of
agricultural machines.
a. Standard
b. Fabrication
c. All of the above
A

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

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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

Fabrication

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4
Q

Property of a material to join together

with other metal at liquid state.

A

Fusibility

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5
Q

Ability of a material to resist indention

A

Hardness

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6
Q

Materials that are rust resistant

A

GI sheets

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7
Q

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

A

Cold-rolled steel

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8
Q

Material commonly used as axle for

agricultural machines.

A

a. Cold-rolled steel shaft

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9
Q

Kind of steel used for making tractor

drawn disk plow bottoms.

A

b. Soft-centered steel

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10
Q

Steel bar used as machine axle is ____.

A

b. cold-rolled steel

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11
Q

Steel bars commonly used in the

manufacture of agricultural machines.

A

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

All of the above

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13
Q

Which of the following metals is the
strongest?
Which of the following metals is the
strongest?

A

Tool steel

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14
Q

The higher the carbon content of the

steel, the ____ it becomes.

A

b. stronger

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15
Q

Standard length of bars available in

hardware.

A

20 ft

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16
Q

When buying angle bars, the right

specification is ____.

A

a. thickness and width

17
Q

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

A

AISI designation 1045

18
Q

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

A

and Steel Institute as ____.

a. AISI 1021

19
Q

Materials used in the manufacture of

disc plows and disc blades for harrows.

A

AISI 1080

20
Q

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

A

AISI 1080

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

22
Q

ANSI means ____.

A

American National Standard Institute

23
Q

Material that is resistant to salt

corrosion.

A

Stainless steel

24
Q

Stainless steel used for food industry.

A

a. SS series 400

25
Q

Stainless steel used for hightemperature

applications.

A

SS 304

26
Q

Stainless steel used for architectural

purposes such as for rails for stairways.

A

SS 202

27
Q
The higher the schedule specification
of a steel pipe, the lower is its \_\_\_\_.
a. length
b. nominal diameter
c. thickness
d. None of the above
A

none

28
Q

If a metal has ⅛ in. thickness, it is

called as ____.

A

c. plate

29
Q

Material 4ft wide x 8ft long with

1/8in. thick is ____.

A

Metal plate

30
Q

Metal sheet with gauge number 14

means ____.

A

14 pieces in one-inch thickness

31
Q

In a 2in. pile of sheet, gauge-20 metal

sheet has ____.

A

40 sheets

32
Q

Which of the following metal sheets

is thicker than gauge 20?

A

Gauge 18

33
Q

The higher the gauge number of a

metal sheet, the lower the ____.

A

thickness

34
Q

Type of paint most suitable for

metals.

A

Acrylic paint