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(Reference: Machine Design Reviewer, rev ed. 1998. )


Questions and Answers
  • 1. 
    _____ is the process necessary to reduce the brittleness in alloy steel.
    • A. 

      A. Martempering

    • B. 

      B. Carburizing

    • C. 

      C. Normalizing

    • D. 

      D. Tempering

  • 2. 
    Molybdenum-chromium-nickel steel designation: 
    • A. 

      A. SAE 48xx

    • B. 

      B. SAE 43xx

    • C. 

      C. SAE 56xx

    • D. 

      D. SAE 46xx

  • 3. 
    _____ is also called strain hardening.
    • A. 

      A. Work hardening

    • B. 

      B. Quenching

    • C. 

      C. Annealing

    • D. 

      D. Normalizing

  • 4. 
    A major alloy in tool steel: 
    • A. 

      A. Cr

    • B. 

      B. FeN

    • C. 

      C. Cobalt

    • D. 

      D. Mn

  • 5. 
    _____ addition imparts resistance to atmospheric corrosion in steel, etc.:
    • A. 

      A. Aluminum bronze

    • B. 

      B. Manganese

    • C. 

      C. Copper

    • D. 

      D. Bronze

  • 6. 
    Iron based alloy contains 9-16% chromium:
    • A. 

      A. Mn Hadfield steel

    • B. 

      B. Chrome-alloy steel

    • C. 

      C. Stainless steel

    • D. 

      D. High chrome steel

  • 7. 
    The purpose of lubrication is as mentioned, EXCEPT:
    • A. 

      A. To lighten the load

    • B. 

      B. Prevent corrosion/adhesion

    • C. 

      C. Prevent adhesion

    • D. 

      D. Cool moving elements

  • 8. 
    All associated with standard materials specifications, EXCEPT: 
    • A. 

      A. American Iron and Steel Institute

    • B. 

      B. Southeast Asia Iron and Steel Institute

    • C. 

      C. Society of Automotive Engineers

    • D. 

      D. American Society of Testing Materials

  • 9. 
    Designated pipe color used in communication: 
    • A. 

      A. Silver grey

    • B. 

      B. Aluminum grey

    • C. 

      C. Bare

    • D. 

      D. White

  • 10. 
    Not part and in fact should not be used in the steel melting process: 
    • A. 

      A. Coke

    • B. 

      B. Silicon

    • C. 

      C. Zinc

    • D. 

      D. Aluminum

  • 11. 
    The ration of stress acting on an elastic substance to the decrease in volume per unit volume:
    • A. 

      A. Bulk modulus

    • B. 

      B. Modulus of resilience

    • C. 

      C. Elastic limit

    • D. 

      D. Modulus of elasticity

  • 12. 
    The strength of non-ferrous alloys is at maximum at room temperature while that of ferrous metal had a maximum strength at _____ deg F. 
    • A. 

      A. 400

    • B. 

      B. 1200

    • C. 

      C. 450

    • D. 

      D. 350

  • 13. 
    Class of steel exhibiting decreased electrical conductivity with increasing temperature: 
    • A. 

      A. Aluminum

    • B. 

      B. P-type semiconductors

    • C. 

      C. Metals

    • D. 

      D. N-type semiconductors

  • 14. 
    Stress relieving is also _____ for the process of reducing internal stresses of steel material/metal. 
    • A. 

      A. Tempering

    • B. 

      B. Normalizing

    • C. 

      C. All of these

    • D. 

      D. Annealing

  • 15. 
    Martensite (stainless steel) contains 4 to 26% Cr and a maximum of _____% nickel.
    • A. 

      A. 2.5

    • B. 

      B. 3.25

    • C. 

      C. 3.5

    • D. 

      D. 2.0

  • 16. 
    The material that can wear/cut substances subjected for:
    • A. 

      A. Carbide

    • B. 

      B. Abrasive

    • C. 

      C. Tungsten

    • D. 

      D. Vanadium

  • 17. 
    • A. 

      A. Teflon

    • B. 

      B. Plastic

    • C. 

      C. All of these

    • D. 

      D. Metal

  • 18. 
    Alloy steel used in manufacturing bolts, studs, tubings subjected to torsional stresses: 
    • A. 

      A. AISI 3141

    • B. 

      B. AISI 2330

    • C. 

      C. AISI 4830

    • D. 

      D. AISI 4310

  • 19. 
    Method of finishing/shaping a machine part of exceptionally high carbon or high chromium steel parts (or very hard material):
    • A. 

      A. Using oxygen lancing

    • B. 

      B. Machining using carbide insert

    • C. 

      C. Using abrasive grinding

    • D. 

      D. Machining with high speed tool steel

  • 20. 
    Not adaptable to welding due to low tensile strength and poor ductility, etc.:
    • A. 

      A. Copper parts

    • B. 

      B. Cast iron materials

    • C. 

      C. Aluminum parts

    • D. 

      D. Bronze parts

  • 21. 
    Plus or minus tolerance can also be called as _____. 
    • A. 

      A. Total tolerance

    • B. 

      B. Unilateral tolerance

    • C. 

      C. Bilateral tolerance

    • D. 

      D. Allowance

  • 22. 
    Peculiar strength of the metal to resist being crushed:
    • A. 

      A. Shear strength

    • B. 

      B. Ultimate strength

    • C. 

      C. Compressive strength

    • D. 

      D. Elastic limit

  • 23. 
    Permissible variation of the manufactured/machined dimensions is called: 
    • A. 

      A. Intolerance fits

    • B. 

      B. Deviation

    • C. 

      C. Allowance

    • D. 

      D. Tolerance

  • 24. 
    The cutting up to 70deg is best for drilling extremely hard metals and for soft materials _____ deg may be applied: 
    • A. 

      A. 60

    • B. 

      B. 45

    • C. 

      C. 40

    • D. 

      D. 48

  • 25. 
    Several forces which can be combined is called: 
    • A. 

      A. Resultants

    • B. 

      B. Compositions of forces

    • C. 

      C. Components

    • D. 

      D. Collinear forces

  • 26. 
    The differential of the shear of equation is which one of the following: 
    • A. 

      A. bending moment of the beam

    • B. 

      B. tensile strength of the beam

    • C. 

      C. slope of the elastic curve

    • D. 

      D. load of the beam

  • 27. 
    The ratio of the moment of inertia of the cross section of the beam to the section modulus:
    • A. 

      A. equal to the radius of gyration

    • B. 

      B. equal to the area of the cross-section

    • C. 

      C. measure of a distance

    • D. 

      D. dependent on the modulus of elasticity of beam measure

  • 28. 
    Finding the resultant of two or more forces is called:
    • A. 

      A. co-planar forces

    • B. 

      B. non-coplanar forces

    • C. 

      C. couple

    • D. 

      D. composition of forces

  • 29. 
    • A. 

      A. Shear strength

    • B. 

      B. Tensile strength 

    • C. 

      C. Torsional strength

    • D. 

      D. Compressive strength

  • 30. 
    The first derivative with respect to velocity of kinetic energy is:
    • A. 

      A. Power

    • B. 

      B. Acceleration

    • C. 

      C. Momentum

    • D. 

      D. None of the above

  • 31. 
    Device used to measure accurately speed: 
    • A. 

      A. Speedometer

    • B. 

      B. Dial indicator

    • C. 

      C. Tachometer

    • D. 

      D. Dial gauge

  • 32. 
    When two elastic bodies collide, which of the following laws can be used to solve for the resulting velocity? 
    • A. 

      A. Dalton’s law

    • B. 

      B. Avogrado

    • C. 

      C. Conservation of energy

    • D. 

      D. Conservation of momentum and Conservation of energy

  • 33. 
    It is a science of motion that can be solved in terms of scalar or vector algebra:
    • A. 

      A. Kinematics

    • B. 

      B. Curvilinear motion

    • C. 

      C. Projectiles

    • D. 

      D. Accelerations

  • 34. 
    A system of forces in space is in equilibrium. If two equal and opposite collinear forces are added, which of the following if any is true? 
    • A. 

      A. Equilibrium is destroyed

    • B. 

      B. Equilibrium is maintained

    • C. 

      C. None of these is true

    • D. 

      D. An unbalances of moment exist

  • 35. 
    The product of the resultant of all forces acting on a body and the time that the resultant acts: 
    • A. 

      A. Angular impulse

    • B. 

      B. Angular momentum

    • C. 

      C. Linear impulse

    • D. 

      D. Linear momentum

  • 36. 
    The smallest area at the point of rupture specimen divided by the original area is called:
    • A. 

      A. Percentage elongation

    • B. 

      B. Izod test

    • C. 

      C. Charpy test

    • D. 

      D. Percentage reduction of area

  • 37. 
    Deals only with the motion of bodies without reference to the forces that cause them:
    • A. 

      A. Dynamics

    • B. 

      B. Kinetics

    • C. 

      C. Statics

    • D. 

      D. Kinematics

  • 38. 
    The three moment equation may be used to analyze: 
    • A. 

      A. Tapered column

    • B. 

      B. Continuous beam

    • C. 

      C. Composite beam

    • D. 

      D. Axially end loaded beam

  • 39. 
    Statement that a given body is in static equilibrium means that the body cannot:
    • A. 

      A. Have any type of motion

    • B. 

      B. Be acted upon more than one force

    • C. 

      C. Undergo any displacement

    • D. 

      D. Have any acceleration

  • 40. 
    Killed steel is always associated with: 
    • A. 

      A. Silicon

    • B. 

      B. Manganese

    • C. 

      C. Phosphorus

    • D. 

      D. Sulfur

  • 41. 
    The good deoxidizer in steel melting: 
    • A. 

      A. Manganese

    • B. 

      B. Silicon

    • C. 

      C. All of these

    • D. 

      D. Aluminum

  • 42. 
    • A. 

      A. All of these

    • B. 

      B. Water with soda or borax

    • C. 

      C. Light mineral oil

    • D. 

      D. Soluble oil

  • 43. 
    The yield strength of a regular brass (65 to 70% Cu, 30 to 35% Zn) can be increased/ improved by: 
    • A. 

      A. Cold working

    • B. 

      B. Tempering

    • C. 

      C. Chill casting

    • D. 

      D. Heat treatment

  • 44. 
    Endurance strength is nearly proportional to the ultimate strength but not with _____.
    • A. 

      A. Yield strength

    • B. 

      B. Design stress

    • C. 

      C. Shear stress

    • D. 

      D. All of the above

  • 45. 
    A furnace used in melting ferrous metals:
    • A. 

      A. Annealing furnace

    • B. 

      B. Tempering furnace

    • C. 

      C. Induction furnace

    • D. 

      D. Normalizing furnace

  • 46. 
    A furnace used in melting non-ferrous metals: 
    • A. 

      A. Cupola furnace

    • B. 

      B. Crucible furnace

    • C. 

      C. Induction furnace

    • D. 

      D. Tempering furnace

  • 47. 
    The best instrument for measuring thousand of an inch: 
    • A. 

      A. Micrometer

    • B. 

      B. Tachometer

    • C. 

      C. Caliper

    • D. 

      D. Pyrometer

  • 48. 
    Separate forces which can be so combined are called:
    • A. 

      A. Components

    • B. 

      B. Concurrent forces

    • C. 

      C. Couple

    • D. 

      D. Non-concurrent forces

  • 49. 
    That property of matter which causes it to resist any change in its motion or state of rest:
    • A. 

      A. Brake

    • B. 

      B. Friction

    • C. 

      C. Inertia

    • D. 

      D. Impulse

  • 50. 
    Negative allowance is called:
    • A. 

      A. Interference of metal

    • B. 

      B. Fit

    • C. 

      C. Tolerance

    • D. 

      D. Allowance

  • 51. 
    If the velocity of a mass is the same all the time during which motion takes place is called: 
    • A. 

      A. Deceleration

    • B. 

      B. Uniform motion

    • C. 

      C. Acceleration

    • D. 

      D. None of these

  • 52. 
    A pair of equal and opposite (not collinear) forces that tend to cause a rotation of a body: 
    • A. 

      A. Couple

    • B. 

      B. Centroids

    • C. 

      C. Equilibrium

    • D. 

      D. Vector

  • 53. 
    When the motion is diminished /decreasing instead of increasing is called: 
    • A. 

      A. Deceleration

    • B. 

      B. Uniform negative impulse

    • C. 

      C. Retarded motion

    • D. 

      D. All of these

  • 54. 
    _____ is a unit of energy. 
    • A. 

      A. Ft-lb

    • B. 

      B. Hp

    • C. 

      C. Btu/hr

    • D. 

      D. Watt

  • 55. 
    ____ forces when action are parallel.
    • A. 

      A. Couple

    • B. 

      B. Non collinear

    • C. 

      C. Resultant

    • D. 

      D. Resultant

  • 56. 
    The product of the mass and the velocity of the center of gravity of the body is called:
    • A. 

      A. Linear momentum

    • B. 

      B. Angular impulse

    • C. 

      C. Linear impulse

    • D. 

      D. Angular momentum

  • 57. 
    Could be defined as simply push or pull:
    • A. 

      A. Power

    • B. 

      B. Inertia

    • C. 

      C. Work

    • D. 

      D. Force

  • 58. 
    Opposite directional forces equal in magnitude and parallel is called _____. 
    • A. 

      A. Non coplanar

    • B. 

      B. Centro

    • C. 

      C. Couple

    • D. 

      D. Coplanar

  • 59. 
    Quantities such as time, volume and density are completely specified when their magnitude is known is called _____.
    • A. 

      A. Couple

    • B. 

      B. Resultant

    • C. 

      C. Components

    • D. 

      D. Scalar

  • 60. 
    _____ is the product of the resultant of all forces acting on a body and the time.
    • A. 

      A. Linear momentum

    • B. 

      B. Linear impulse

    • C. 

      C. Angular momentum

    • D. 

      D. All of these

  • 61. 
    The separate forces which can be so combined are called: 
    • A. 

      A. Concurrent forces

    • B. 

      B. Non concurrent forces

    • C. 

      C. Couple

    • D. 

      D. Component forces

  • 62. 
    The changes in shape or geometry of the body due to action of a force on it, is called:
    • A. 

      A. Shear stress

    • B. 

      B. Stresses

    • C. 

      C. Compressive stress

    • D. 

      D. Strains

  • 63. 
    The ratio of moment of inertia on a cross-section of a beam to this section modulus is: 
    • A. 

      A. A measure of distance

    • B. 

      B. Equal to the radius of gyration and compression

    • C. 

      C. Multiplied by the bending moment of inertia to determine the yield stress

    • D. 

      D. Equal to the area of the cross-section and tension

  • 64. 
    Stresses that are independent of loads is called _____: 
    • A. 

      A. Working stress

    • B. 

      B. Residual stresses

    • C. 

      C. Simple stress

    • D. 

      D. Combined stress

  • 65. 
    • A. 

      A. Silica sand, bentonite, flour/paste water

    • B. 

      B. Silica sand and paste

    • C. 

      C. Silica sand, paste, graphite electrode

    • D. 

      D. Silica sand, linseed oil, flour

  • 66. 
    Several forces which can be combined is called: 
    • A. 

      A. Resultants

    • B. 

      B. Composition forces

    • C. 

      C. Components

    • D. 

      D. Collinear forces

  • 67. 
    Single force which produces the same effect upon a mass replacing two or more forces acting together is called: 
    • A. 

      A. Vector

    • B. 

      B. Resultant

    • C. 

      C. Component forces

    • D. 

      D. Resolution

  • 68. 
    _____ force means when their lines of action can be extended to meet one point.
    • A. 

      A. Concurrent

    • B. 

      B. Centroids

    • C. 

      C. Collinear

    • D. 

      D. Resultants

  • 69. 
    The design stress and factor of safety are related in the following manner: 
    • A. 

      A. Design stress = ultimate stress/factor of safety

    • B. 

      B. Ultimate stress = factor of safety/design stress plus concentration factor

    • C. 

      C. Factor of safety = design stress/ultimate stress

    • D. 

      D. Design stress = factor of safety/times stress concentration factor

  • 70. 
    A resulting force that replaces two or more forces acting together:
    • A. 

      A. Vector

    • B. 

      B. Couple

    • C. 

      C. Resultant

    • D. 

      D. Equilibrant

  • 71. 
    Progressive change of position of a body is called: 
    • A. 

      A. Acceleration

    • B. 

      B. Momentum

    • C. 

      C. Motion

    • D. 

      D. Force

  • 72. 
    Moment of inertia is also called: 
    • A. 

      A. Modulus of elasticity

    • B. 

      B. Weep strength

    • C. 

      C. None of these

    • D. 

      D. Radius of gyration

  • 73. 
    Treatment process that produces a residual compressive stress at the surface (which occupy more volume) and residual tension on the inside that results in considerable increase in fatigue strength for members on torsion/bending:
    • A. 

      A. Heavy oil quenching

    • B. 

      B. Partial quenching

    • C. 

      C. Quenching

    • D. 

      D. Shallow quenching

  • 74. 
    A petroleum by-product used as electrodes in an electric arc furnace melting operation: 
    • A. 

      A. Anthracite coke

    • B. 

      B. Foundry coke

    • C. 

      C. Graphite electrodes

    • D. 

      D. Bituminous coke

  • 75. 
    Non-metallic material of high melting temperature being used as furnace lining:
    • A. 

      A. Quartz bricks

    • B. 

      B. Refractories

    • C. 

      C. Silica sand

    • D. 

      D. Dolomite clay bricks

  • 76. 
    Internal stress exerted by the fibers to resist the action of outside force is called _____.
    • A. 

      A. Shearing stress

    • B. 

      B. Tensile stress

    • C. 

      C. Ultimate stress

    • D. 

      D. Compressive stress

  • 77. 
    The phenomenon of continuous stretching under load even if the stress is less than the yield point: 
    • A. 

      A. Elasticity

    • B. 

      B. Ductility

    • C. 

      C. Plastic

    • D. 

      D. Creep

  • 78. 
    The capacity of metal to withstand load without breaking is:
    • A. 

      A. Strength

    • B. 

      B. Stress

    • C. 

      C. Elasticity

    • D. 

      D. Strain

  • 79. 
    • A. 

      A. Shear strength

    • B. 

      B. Tensile strength

    • C. 

      C. Torsional strength

    • D. 

      D. Compressive strength

  • 80. 
    The first derivative with respect to velocity of kinetic energy:
    • A. 

      A. Power

    • B. 

      B. Energy

    • C. 

      C. Momentum

    • D. 

      D. None of these

  • 81. 
    • A. 

      A. Torsional strength

    • B. 

      B. Modulus of elasticity

    • C. 

      C. Twisting moment

    • D. 

      D. elasticity

  • 82. 
    Heating of the metal to a temperature above the critical temperature and then cooling slowly usually in the furnace to reduce the hardness and improve the machinability is called: 
    • A. 

      A. Annealing

    • B. 

      B. Tempering

    • C. 

      C. Normalizing

    • D. 

      D. Quenching

  • 83. 
    A unit of deformation is called: 
    • A. 

      A. Torsion

    • B. 

      B. Strain

    • C. 

      C. Stress

    • D. 

      D. Shear

  • 84. 
    A machine used for the testing of very thin steel or surface layers: 
    • A. 

      A. Charpy test

    • B. 

      B. Izod test

    • C. 

      C. Description

    • D. 

      D. Rockwell superfacial

  • 85. 
    The total amount of permanent extension of the gauge length measured after the specimen has fractured and is expressed as percentage increase of the original gage length: 
    • A. 

      A. Elongation

    • B. 

      B. Strain

    • C. 

      C. Stress

    • D. 

      D. Elastic limit

  • 86. 
    A corrosion occurs within the or adjacent to a crevice formed by contact with another piece of the same or another metal:
    • A. 

      A. Pitting

    • B. 

      B. Galvanic

    • C. 

      C. Erosion

    • D. 

      D. Crevice

  • 87. 
    The ability of metals to stand loads without breaking down is: 
    • A. 

      A. Strain

    • B. 

      B. Stress

    • C. 

      C. Elasticity

    • D. 

      D. Strength