ENGINEERING MATERIALS Flashcards
Materials used in the fabrication of agricultural machines. a. Standard b. Fabrication c. All of the above
All of the above
Materials that are ready to adopt as
component of agricultural machines such
as bearing, belts, pulley, etc.
Standard
Materials that need to be processed
before it can be used as component of
agricultural machines such as bars, sheets,
plates, etc.
Fabrication
Property of a material to join together
with other metal at liquid state.
Fusibility
Ability of a material to resist indention
Hardness
Materials that are rust resistant
GI sheets
Recommended material for the
manufacture of pin sleeves and hitch pins
for walking-type power tillers.
Cold-rolled steel
Material commonly used as axle for
agricultural machines.
a. Cold-rolled steel shaft
Kind of steel used for making tractor
drawn disk plow bottoms.
b. Soft-centered steel
Steel bar used as machine axle is ____.
b. cold-rolled steel
Steel bars commonly used in the
manufacture of agricultural machines.
Mild steel
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
All of the above
Which of the following metals is the
strongest?
Which of the following metals is the
strongest?
Tool steel
The higher the carbon content of the
steel, the ____ it becomes.
b. stronger
Standard length of bars available in
hardware.
20 ft
When buying angle bars, the right
specification is ____.
a. thickness and width
Required material designation for the
construction of gear based on PAES
standard.
AISI designation 1045
Mild steel with 0.15 to 0.23% carbon
content (cold rolled) is designated by
American Iron and Steel Institute as ____.
and Steel Institute as ____.
a. AISI 1021
Materials used in the manufacture of
disc plows and disc blades for harrows.
AISI 1080
Steel with at least 0.80% carbon is
designated by American Iron and Steel
Institute as ____.
AISI 1080
Cold-rolled steel shaft with 0.37% to
0.44% carbon content is designated by
American Iron and Steel Institute as ____.
AISI 1040
ANSI means ____.
American National Standard Institute
Material that is resistant to salt
corrosion.
Stainless steel
Stainless steel used for food industry.
a. SS series 400
Stainless steel used for hightemperature
applications.
SS 304
Stainless steel used for architectural
purposes such as for rails for stairways.
SS 202
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
none
If a metal has ⅛ in. thickness, it is
called as ____.
c. plate
Material 4ft wide x 8ft long with
1/8in. thick is ____.
Metal plate
Metal sheet with gauge number 14
means ____.
14 pieces in one-inch thickness
In a 2in. pile of sheet, gauge-20 metal
sheet has ____.
40 sheets
Which of the following metal sheets
is thicker than gauge 20?
Gauge 18
The higher the gauge number of a
metal sheet, the lower the ____.
thickness
Type of paint most suitable for
metals.
Acrylic paint
