Quiz#9 Steel
A specimen has an original diameter of .5 inches and a final diameter of .475 inches. What is its percent of area reduction? A. 9.7% B. 17.7% C. 19.6% D. 25%
A. 9.7%
Depositing a metal like nickel or chrome on the surface of steel by electrical or chemical means to prevent it from rusting is known as: A. Plating B. Galvanizing C. Oxidizing D. Annealing
A. Plating
Which of the following is an obsolete method of joining steel members: A. Rivets B. Washers C. Bolts D. Welding
A. Rivets
Welding method in which welding rod coated with flux is used: A. Shield metal arc method B. Submerged arc method C. Gas metal arc method D. Flux cored arc method
A. Shield metal arc method
In American wide flange beam designation of W 10 x 12, 12 stands for? A. Nominal depth of 12 inches B. Weight of 12 lb per linear foot C. Web thickness of 12 inches D. None of the above
B. Weight of 12 lb per linear foot
The main alloy found in stainless steel which prevents it from rusting is: A. carbon B. chromium C. aluminum D. tungsten
B. chromium
Steel that has aluminum added to it and is the highest quality steel that can be produced through ladle metallurgy is: A. capped steel B. killed steel C. rimmed steel D. specialty steel
B. killed steel
Which of the following metals is used to place a galvanized coating on steel to prevent it from rusting? A. Copper B. Aluminum C. Tin D. Zinc
D. Zinc
Increasing the carbon content in carbon steels produces: A. softer steel B. tempered steel C. stainless steel D. harder steel E. lower cost steel
D. harder steel
Which of the following furnaces is used to produce pig iron? A. open hearth B. basic oxygen C. bessemer D. electric E. blast
E. blast
What is the approximate tensile strength of a specimen if the original diameter is .5 inches and the ultimate load is 15,000 pounds? A. 76,433 PSI B. 71,430 PSI C. 30,000 PSI D. 28,000 PSI
A. 76,433 PSI
What is the main difference between steel and cast iron? A. Steel has a lower carbon content than cast iron B. Steel is more brittle than cast iron C. Cast iron has better tensile strength than steel D. Steel corrodes less than cast iron
A. Steel has a lower carbon content than cast iron
Heating steel to a point above the critical temperature and allowing it to COOL SLOWLY in a furnace or sand is known as: A. annealing B. tempering C. hardening D. carburizing
A. annealing
An alloy of carbon and iron that has less than 2% carbon is known as: A. carbon steel B. pig iron C. cast iron D. allow steel
A. carbon steel
Heating steel below the critical temperature point to relieve the strain on the grain structure produced by quenching and to increase its ductility and toughness is known as: A. tempering B. hardening C. normalizing D. annealing
A. tempering
Which of the following tensile test data implies the greatest ductility? A. 30% elongation-25% area reduction B. 50% elongation-45% area reduction C. 10% elongation-10% area reduction D. 25% elongation-20% area reduction E. 20% elongation-20% area reduction
B. 50% elongation-45% area reduction
In the designation 4150 steel, the 4 refers to: A. the percentage of pearlite contained in the steel B. the type of steel it is (plain carbon or alloy steel) C. the percentage of carbon contained in the steel D. the density of the steel
B. the type of steel it is (plain carbon or alloy steel)
In the designation 4330 steel, the 30 refers to: A. 30% carbon B. 3.0% carbon C. .30% carbon D. .03% carbon
C. .30% carbon
What is the percent of major alloy in 8645 steel? A. 4% B. 8% C. 6% D. 5%
C. 6%
Which of the following is ASTM designation of steel? A. 501 B. 5010 C. A501 D. AA501
C. A501
Which of the following Rockwell hardness scales should be used when hardness testing steel of unknown hardness? A. A scale B. B scale C. C scale D. D scale E. G scale
C. C scale
ASTM designated A36 steel has a carbon content of 0.26%. Which type of steel is A36? A. Medium carbon steels B. White cast irons C. Low carbon steels D. Tool steels
C. Low carbon steels
In American steel angle designation of L 8 x 6 x 1, 1 stands for? A. Nominal depth of 1 inches for one of the legs B. Weight of 1 lb per linear foot C. Thickness of each leg of 1 inches D. None of the above
C. Thickness of each leg of 1 inches
Which of the following is an ingredient used in the production of pig iron A. steel B. granite C. coke D. aluminum E. slag
C. coke
Cold forming of steel results in: A. increased ductility B. reduced hardness C. increased tensile strength D. large amount of energy consumption
C. increased tensile strength
Pig iron is used for: A. heat treating B. case hardening C. making steel D. to make hand tools
C. making steel
The two major classifications of steel are: A. special and wrought B. low carbon and mild steel C. cast and alloy steel D. carbon and alloy steel E. alloy steel and pig iron
D. carbon and alloy steel
Which of the following ferrous metals would be a good material to use for knives and cutlery? A. low carbon steel B. gray cast iron C. low alloy steel D. stainless steel
D. stainless steel
Which of the following is a specialty steel? A. 4340 steel B. 1018 steel C. high carbon steel D. stainless steel
D. stainless steel
Ferrous metals that have properties that make them especially useful in the cutting and shaping of other materials are known as: A. medium carbon steels B. white cast irons C. low alloy steels D. tool steels
D. tool steels
Steel products used in construction can be classified as: A. cast steel B. reinforcing steel C. structural steel D. fastening products E. B through D
E. B through D
Steel products used in construction can be classified as: A. cast steel B. reinforced steel C. structural steel D. fastening products E. all except "cast steel"
E. all except "cast steel"
In friction type (slip-critical) connection of bolt, connection will experience some slippage before reaching full strength. True False
False
Groove weld require properly shaped and spaced joints. True False
True
Prestressing is one of the methods used for increasing the load carrying capacity of a structural member made of reinforced concrete. True False
True
