M0.2 Flashcards
Which of the following is the major
alloying element in Invar?
Nickel
Which of the following is available in five
slightly different nominal composition for application which
require high strength, good fabricating and fusing qualities,
immunity to rust, free machining and a corrosion resistance
equivalent to copper?
Everdur
Aluminum is particularly satisfactory for
applications requiring all of the following characteristics,
EXCEPT:
High strength
It is a polymer of chloroprene of the
monovinyl acetylene type.
Neoprene
Why are Plasticizers added to plastics?
To increase flexibility of materials
Which of the following superalloy is age-hardenable?
Inconel
What is a unique form of cast iron with worm shaped graphite particles?
Compacted graphitic iron
Kevlar epoxy composite is widely used
in:
Automobiles
It is an age hardenable wrought alloy
which has mechanical properties comparable to those of heat-treated alloy steel of the same order of hardness and resistance to corrosion like that of Monel. What is this alloy
of nickel?
K Monel
An interrupted quenching process
resulting in an austenite to martensite transition is _______.
Martempering
When more than one spring or resisting members share the load, the relative stiffness is the _______.
Rigidity
In sulfuric acid, which of the following
is suitable for handling acid in concentrations up to 50% and at a temperature including the boiling point?
Hastelloy B
Mechanical impact devices that accept material smaller than approximately 4 inches.
Fine impact mills
An interrupted quenching process
resulting in an austenite to bainite transition is_______.
Austempering
Which of the following is one of the best methods for increasing a spring’s fatigue life?
Shot peening
What is the lightest known metal?
Aluminum
Material having a high electrical
resistance and should not be used as a conductor of electrical current.
Iron
The property that characterizes a
material’s ability to be drawn into a wire.
Ductility
The carbon content range percentage in steel that readily responds to heat treatment.
0.35 - 0.40
A number indicating how many times a certain volume of a material is heavier than an equal volume
of water.
Specific gravity
The characteristic of tool steel to
sustain shocks and major impact.
Toughness
A good general-purpose deoxidizer
which promotes fine grain in steel.
Silicon
It is a hardening treatment whereby a cast metal is being heat treated to a very high temperature
(above the recrystallization phase) then suddenly subjected
to rapid cooling to improve hardenability of wear resistance.
Quenching
A treatment process that produces a
residual compressive stress at the surface and residual tension on the inside that results in considerable increase in fatigue strength for members of tension/bending.
Shallow quenching
Normally, cast iron contains 2% carbon or more and silicon in the range of _____ %.
1 to 3
The SAE designation for steel composed of nickel, chromium, and molybdenum.
94XX
The material for engine radiation is
usually made of ________.
Yellow brass
A problem by-product used as an
electrode in an electric arc furnace melting operation.
Graphite electrodes
Which of the following does not affect the tensile strength of steel?
Boron
Mirror finish specimen has surface
roughness of:
1 rms
Chromium steel to include and
corrosion resistant designation.
SAE 514XX
A non-metallic material of high melting temperature being used as a furnace lining.
Refractories
What is the silicon-manganese steel designation?
92XX
A major alloying element in tool steels.
Chromium
The material that can wear/cut
materials subjected to:
Abrasive
Not adaptable to welding due to low
tensile strength and poor ductility, etc.
Aluminum parts
Which of the following is not a
viscoelastic material?
Metal
These steels (SAE Steels 1006, 1008, 1010,
1015)are the lowest carbon steels of the plain carbon type, and are selected where _______ is the primary requisite of the user.
Cold formability
In manufacturing, what is the operation of cutting out flat area to some desired shape and is usually the first step in a series of operation?
Blanking
An instrument that measures the hardness of the work piece in terms of elasticity.
Durometer
The ability of metal to stretch, bend or twist without breaking or cracking.
Ductility
The property of material wherein the content is continuously distributed through its entire mass
Homogeneity
Alloy steel axle under repeated stress will eventually fail if the stress is above the endurance for the
axle. What is the endurance limit of steel?
One-half of the ultimate strength
Which of the following steels does not readily respond to heat treatment?
SAE 1020
Which of the following material has 66% Nickel, 29% Copper, and 3% Aluminum?
K Monel
Gasket material which should avoid hot liquid/steam application.
Rubberized
In greater quantity, this element is harmful to the molten ferrous metal.
Sulfur
Steel designation SAE 51xxx belongs to the________ steel family.
Chromium
This iron is also known as a ductile cast iron. What do you call this iron?
Nodular cast iron
A fine-grained salty silica rock used for sharpening edge tools.
Oilstone
The SAE 2340 shafting contain ____ % Nickel.
3.25 to 3.75%
Specification of molybdenum alloy
SAE 4XXX
Chromium steel standard designation:
SAE 5XXX
Plain carbon steel standard designation:
SAE 10XX
Manganese steel standard designation:
SAE 13XX
Molybdenum-chromium-nickel steel
designation.
SAE 43XX
Molybdenum steel standard designation.
SAE 40XX
Steel plates allowable tensile strength.
396.41 N/m²
In general, alloys with high nickel content retain toughness to quiet low temperatures up to _____°F.
-320
These are steels most widely used of
engineering materials, no other material offers comparable versatility for product design.
Wrought steels
An 18-8 stainless steel means:
18% nickel and 8% chromium
The shear stress along the principal plane subjected to maximum principal stress is:
Zero
