E10_2 Flashcards
- How do you call the velocity of the chip relative to the workpiece?
A. Cutting speed
B. Chip velocity
C. Shear velocity
D. Rake velocity
C. Shear velocity
- Which of the following is the primary parameter affecting the cutting energy requirement?
A. Compressive stress
B. Shear stress
C. Torsional stress
D. Bending stress
B. Shear stress
- The energy expended per unit volume removed is known as:
A. Specific cutting energy
B. Metal removal rate
C. Cutting horsepower
D. Absolute cutting energy
A. Specific cutting energy
- A plain carbon steel with approximately 0.9 to 1.3% carbon, which has been hardened and tempered.
A. Carbon tool steel
B. High speed steel
C. Low speed steel
D. Medium speed steel
A. Carbon tool steel
- Contains tungsten or chromium and retains its hardness up to approximately 600 C.
A. Carbon tool steel
B. High speed steel
C. Low speed steel
D. Medium speed steel
B. High speed steel
- Cast non-ferrous tools are brittle but can be used to approximately:
A. 1000 C
B. 925 C
C. 1500 C
D. 750 C
B. 925 C
- Which of the following is produced through powder metallurgy from non-ferrous metals?
A. Sintered carbides
B. Ceramic tools
C. Diamonds
D. Cast non-ferrous
A. Sintered carbides
- Ceramic tools operate.
A. Below 2000 F
B. Below 2200 F
C. Above 2000 F
D. Below 2200 F
A. Below 2000 F
- Which of the following is manufactured from aluminum oxide have the same expected life as carbide tools but can operate at speeds from two or three times higher? They operate below 1100 C.
A. Sintered carbides
B. Ceramic tools
C. Diamonds
D. Cast non-ferrous
B. Ceramic tools
- Which of the following are used in specific case, usually in finishing operations?
A. Sintered carbides
B. Ceramic tools
C. Diamonds
D. Cast non-ferrous
C. Diamonds
- A metal which has a high electrical cinductivity but should not be used for high temperature.
A. Silicon
B. Zinc
C. Chrome Alloy
D. Carbide
B. Zinc
- It improves red hardness of steel.
A. Chromium
B. Cobalt
C. Boron
D. Lead
B. Cobalt
- What is the SAE specification number of molybdenum?
A. SAE 2xxx
B. SAE 3xxx
C. SAE 4xxx
D. SAE 5xxx
C. SAE 4xxx
- Which does not belong to the group?
A. SAE
B. AISI
C. SEA
D. ASTM
C. SEA
- It is the ability of the material to resist deformation under stress.
A. Plasticity
B. Stiffness
C. Toughness
D. All of these
B. Stiffness
- Which of the following is not a structural class of steel?
A. High speed steel
B. Tool and die
C. Low carbon
D. High carbon
B. Tool and die
- Continuous stretching under load even if the stress is less than the yield point is known as:
A. Plasticity
B. Elasticity
C. Creep
D. Ductility
C. Creep
- Killed steel is always associated with:
A. Silicon
B. Manganese
C. Phosphorus
D. Sulfur
A. Silicon
- The good deoxidizer in steel meeting.
A. Manganese
B. Silicon
C. Aluminum
D. All of these
D. All of these
- Good stabilizer in stainless steel is:
A. Columbium
B. Titanium
C. Tantalum
D. All of these
D. All of these
- Used as a finishing operation since very fine and imensionally accurate surface can be produced.
A. Grinding
B. Snagging
C. Honing
D. Lapping
A. Grinding
- Describes very rough grinding, such as that performed in foundries to remove gates, fins and risers from castings.
A. Grinding
B. Snagging
C. Honing
D. Lapping
B. Snagging
- Grinding in which very little material, 0.001 to 0.005 in. is removed.
A. Grinding
B. Snagging
C. Honing
D. Lapping
C. Honing
- Which of the following is not a measuring device?
A. Orsat analyzer
B. Thermometer
C. Micrometer caliper
D. Divider
D. Divider
- A plain carbon steel with approximately 0.9 to 1.3% carbon which has been hardened and tempered.
A. Carbon tool steel
B. Cast non-ferrous
C. High speed steel
D. Diamond
A. Carbon tool steel
- Carbon tool steel can be given a good edge, but is restricted to use below:
A. 400 to 600 F
B. 300 to 400 F
C. 700 to 800 F
D. 800 to 1000 F
A. 400 to 600 F
- Which of the following contains tungsten or chromium and retains its hardness up to approximately 1100 F, A property known as red hardness.
A. ceramic tools
B. Diamonds
C. High speed steel
D. Carbon and steel
C. High speed steel
- Cast non-ferrous tools are brittle but can be used up to approximately:
A. 1700 F
B. 2200 F
C. 2000 F
D. 600 F
A. 1700 F
- They are produced through powder metallurgy from non-ferrous metals.
A. Diamonds
B. Cast non-ferrous
C. Ceramic tools
D. Sintered carbides
D. Sintered carbides
- Sintered carbide operates at cutting speeds how many times as fast as HSS tools.
A. 2 to 5
B. Thrice
C. 5 to 7
D. Twice
A. 2 to 5
- Metals are conductive because:
A. The electrons are loosely bound to the nuclei and therefore mobile
B. Having characteristics luster
C. They are on the left side of the periodic table
D. They have extra electrons as exhibited by normally possible balance state
A. The electrons are loosely bound to the nuclei and therefore mobile
- The yield strength of the rectangular yellow brass 65 to 70% Cu, 30 to 35% Zn can be increased / improved by ____.
A. Cold working
B. Tempering
C. Shill casting
D. Heat treatment
A. Cold working
- Used as cast condition steel casting with carbon content less than _____ % C.
A. 0.26
B. 0.15 to 0.18
C. 0.20
D. 0.25
C. 0.20
- Liners are normally made of:
A. Cast iron
B. Alloyed bronze
C. Alloyed steel
D. Alloyed aluminum
A. Cast iron
- A furnace used in melting non – ferrous metals is called:
A. Cupola furnace
B. Crucible furnace
C. Induction furnace
D. Tempering furnace
B. Crucible furnace
- A furnace used in melting ferrous metals.
A. Annealing furnace
B. Tempering furnace
C. Induction furnace
D. Normalizing furnace
C. Induction furnace
- All are associated with standard material specified except ______.
A. American Iron and Steel Institute
B. Society of Automotive Engineers
C. Southeast Asia Iron and Steel Institute
D. American Society for Testing Materials
C. Southeast Asia Iron and Steel Institute
- The ability of metal to be deformed considerably without rupture is called:
A. Malleability
B. Elasticity
C. Ductility
D. Plasticity
D. Plasticity
- Permanent deformation or strain may occur without fracture is called:
A. Malleability
B. Elasticity
C. Ductility
D. Plasticity
D. Plasticity
- An alloy that improves strength of steel at high temperature application.
A. Tungsten
B. Molybdenum
C. Chromium
D. All of these
D. All of these
- Which of the following is manufactured from aluminum oxide have the same expected life as carbide tools but can also operate at speeds from two to three times higher?
A. Ceramic tools
B. High speed steel
C. Diamonds
D. Carbon tool steel
A. Ceramic tools
- Soluble in the presence of high temperature iron used in specific cases, usually in finishing operations.
A. Ceramic tools
B. Diamonds
C. High speed steel
D. Aluminum
B. Diamonds
- Percent of the heat developed in cutting is due to friction between the tool and the workpiece is:
A. Approximately 50%
B. Approximately 10%
C. Approximately 25%
D. Approximately 75%
C. Approximately 25%
- Which of the following is used to reduce friction, remove heat, heat chips and protect against corrosion.
A. Water vapor
B. Carbon
C. Air
D. Cutting fluid
D. Cutting fluid
- Which of the following is a good heat remove, but it promotes rust?
A. Air
B. Kerosene
C. Carbon dioxide
D. Water
D. Water
- Addition of _____ to water produces an efficient, inexpensive cutting fluid that does not promote rusting.
A. Sal soda
B. Kerosene lubricants
C. Straight cutting oils
D. Air
A. Sal soda
- It reduces friction and do not cause rust but are less efficient of heat removal than water.
A. Sal soda
B. Kerosene lubricants
C. Straight cutting oils
D. Air
C. Straight cutting oils
- Taylor’s equation relates cutting speed v and tool life T for particular combination of tool and workpiece, VTn = constant. This equation is also known as:
A. Flank wear
B. Nose failure
C. Crater wear
D. Tool life
D. Tool life
- After any cutting standard grinding operation, the surface of a workplace will consist of:
A. Smear metal
B. Ultrafinishing
C. Superfinishing
D. Centerless grinding
A. Smear metal
- A method that does not require clamping, chucking or holding round workpieces.
A. Centerless grinding
B. Laser machining
C. Chemical milling
D. Ultrafinishing
A. Centerless grinding
