Elements 18

1.
Files are divided into two general classes. How are these classified?
A. rough and smooth
B. single-cut and double-cut
C. large and smal!
D. flat shapes and round shapes

2. The term "set" of a saw best defines what?
A. to set properly in the frame
B. alternate teeth are turned slightly to left and right to make cutting slot slightly wider than the thickness of the blade
C. the teeth have been case-hardened for better cutting
D. the teeth are set evenly apart

3. All hard hacksaw blade is best suited for work on which of the following?
A. brass
B. cast iron
C. tool steel
D. any of these

4. Buffing wheels are made of
A. Graphite
B. Cotton fabric
C. Abrasive materials
D. Soft metals

5. A hacksaw blade with 34 teeth per inch should be used for cutting which of the following materials?
A. brass
B. heavy stock
C. cast iron
D. thin wall tubing

6. How is the hacksaw blade should be placed in the frame?
A.. the teeth pointing forward
B. the teeth pointing backward
C. one end looser than the other end
D. the teeth facing in any direction

7. Which of the following is the usual procedure when cutting a long thin piece of metal?
A. turn the blade upside down in the frame
B. turn the blade at right angles to the frame
C. use a blade with fewer teeth per inch
D. set the blade in the frame with the teeth facing toward you

8. A hacksaw blade with 18 teeth per inch is best suited for cutting what material(s)?
A. solid stock
B. aluminum
C. cast iron
D. any of these

9. What is the used of coolant in the power hacksaw when cutting materials?
A. absorb the heat of friction
B. prevent the blade from overheating
C. prevent the blade from losing its temper
D. all of these

10. What is used for finishing a piece of work to size with a file?
A. double-cut fine-tooth file
B. mill file
C. single-cut fine-tooth file
D. crossing file

11. The process of finishing off a piece of metal with a real smooth finish.
A. draw - filing
B. mill - filing
C. side - filing
D: flat - filing

12. How do you call a small piece of metal clogged between the teeth on a file?

A. clogs

B. pins

C. flats

D. bumps

13. Which of the following is described as the "safe edge" of 'the file?
A. the end opposite the handle
B. the edge with no teeth
C. the one with the handle
D. none of the above

14. The best procedure when filing a piece of metal in a lathe is to take —
A. short even strokes
B. long fast strokes
C. long slow strokes
D. short fast strokes

15. Which of the following information is necessary when ordering a file?

A. size (length)

B. type of teeth

C. shape

D. All of these

16. Which of the following is the best file to be used when finishing sharp corners or slots and grooves?
A. mill file
B. knife file
C. square
D. jeweler's file

17. How is "eleven - sixteenths" of an inch expressed in decimal?

A. 0.6785

B. 0.6875

C. 0.7685

D. 0.6578

18. What is the approximate distance of the marking on a micrometer barrel?

A. 0.025" apart


B. 0.0025" apart


C. 0.250" apart


D. 2.50" apart

19. Which of the following is the effect if the lathe is put into back gear?
A. go backwards of the same speed
B. faster
C. slower
D. at a slower speed backwards

20. The work should be held with —-
when using a drill press
A. the hand
B. a vise or clamp
C. a pair of pliers
D. gloves on

21. What is normally used in drilling a hole in a piece of work held in a lathe chuck?
A. compound rest
B. tailstock and drill chuck
C. cross-feed
D. headstock

22. How do you call the process of cutting a flat sheet to a desired shape ?
A. Blanking
B. Trimming
C. Stamping
D. Slitting

23. 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

24. Grinding in which very little material, 0.001 to 0.005 in. is removed.
A. Grinding
B. Snagging
C. Honing
D. Lapping

25. Which of the following is not a measuring device?
A. Orsat analyzer
B. thermometer
C. micrometer caliper
D. divider

26. Low helix angle drills are preferred for drilling holes in —-


A. Plastics
B. Cast steel
C. Bronze
D. Carbon steel

27. The pinch effect in welding is the result of what?
A. Expansion of gases in the arch
B. Residual stress caused by molten metal
C. electromagnetic forces
D. electrostatic field

28. Which of the following is used to reduce friction, remove heat, remove chips and protect against corrosion.
A. water vapor
B. carbon
C. air
D. cutting fluid

29. Which of the following is a good heat remove, but it promote rust?

A. Air


B. kerosene

C. carbon dioxide

D. water

30. 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

31. It reduce 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

32. Taylor's equation relates cutting speed V and tool life T for particular combination of tool and workpiece, VT" = constant. This equation is also known as

A. flank wear
B. nose failure
C. crater wear
D. tool life

33. After any cutting or standard grinding operation, the surface of a workplace will consist of —-

A. smear metal
B. ultrafinishing
C. superfinishing
D. centerless grinding

34. A method that does not require clamping, chucking, or holding round workpieces.
A. centerless grinding
B. laser machining
C. chemical milling
D. ultrafinishing

35. Which of the following uses high-energy electrical discharges to shape electrically conducting workpiece?
A. Electrochemical machining
B. Electrochemical grinding
C. Electrical discharge machining
D. Ultrasonic grinding

36. For common brass tools, wear ratios for the tool and workpiece vary between —-
A. 4:1
B. 20:1
C. 10:1
D. 8:1

37. For expensive tool materials, wear ratios for the tool and workpiece vary between_
A. 4:1
B. 20:1
C. 10:1
D. 8:1

38. It removes heat by electrolysis in a high current depleting operation.
A. Electrochemical machining
B. Electronic erosion
C. Electrospark machining
D. Electrical discharge machining

39. What is the other name of electrolytic grinding?
A. laser grinding
B. electrochemical grinding
C. ultrasonic grinding
D. chemical milling

40. It is typically used in the manufacture of printed circuit boards, is the selective removal of material not protected by a mask.
A. chemical milling
B. laser machining
C. ultrasonic machining
D. electronic erosion

41. It can be used to shape hard britte materials such as glass, ceramics crystals and gem stones, as well as tool steels and other metals.
A. chemical milling
B. laser machining
C. ultrasonic machining
D. electronic erosion

42. It is used to cut or burn very small holes in the workpiece with high dimensional accuracy.
A. Electrochemical machining
B. Laser machining
C. Chemical milling
D. Electronic erosion

43. A general term used to denote the blanking, bending and forming and shearing of thin-gage metals.

A. Presswork
B. Transfer die
C. Strip die
D. Brake

44. Used with dies and punches to form the workpieces.
A. station
B. transfer die
C. strip die
D. presses

45. With —-
the workpiece advances through a
sequence of operations.

A. presswork

B. brakes

C. tonnage

D. progressive dies

46. Cut pieces from flat plates, strips and coil stock.

A. shearing

B. bend allowance

C. forming dies

D. spring back

47. It produces usable pieces, leaving the source piece behind as scrap.
A. punching
B. drawing
C. blanking
D. coining

48. The operation of removing scrap blanks from the workpiece, leaving the source piece as the final product.
А. punching
B. drawing
C. clanking
D. coining

49. A cold forming process that converts a flat blank into hollow vessel.

A. Embossing

B. Drawing

C. Swaging

D. Punching

50. It is used in the production of coins, is a severe operation requiring high tonnage, due to the fact that the metal flow is completely confined within the die cavity.
A. Coining
В. Embossing
C. Swaging
D. Blanking

51. Forms shallow raised letters or other designs in relief on the surface of sheet metal blanks.
A. coining
B. embossing
C. swaging
D. blanking

52. Reduce the workpiece area by cold flowing the metal into a die cavity by a high compressive force or impact.
A. coining
B. embossing
C. swaging
D. blanking

53. The repeated hammering of a workpiece to obtain the desired shape.
A. spring back
B. blanking
C. punching
D. forging

54. Relies on closed impression dies to produce the desired shape.
A. hammer forging
B. open die forging
C. smith forging
D. drop forging

55. What is the other name given to gravity drop hammers?
A. board hammers
B. press forging
C. powered hammers
D. impactor forging

56. The forging blows are repeated at the rate of several times a minute for —
A. gravity drop hammers or board hammers
B. press forging
C. powered hammers
D. impactor forging

57. The forging blows are repeated at the rate of more than
300 times a minute for —
A. grayity drop hammers or board hammers
B. press forging
C. powered hammers
D. impactor forging

58. The workpiece is held in position while the dies are hammered horizontally into it from both sides.
A. gravity drop hammers or board hammers
B. press forging
C. powered hammers
D. impactor forging

59. Involves holding and applying pressure to round heated blanks.
A. Upset forming
B. Flash
C. Pickling
D. Parting line

60. With ____ the part is shaped by a slow squeezing
reaction, rather than rapid impacts.
A. drop forging
B. impactor forging
C. press forging
D. upset forging

61. Following forging, the part will have a thin projection of excess metal known as —
at the parting line.

A. pickling
B. flash
C. trimmer dies
D. upset

62. The flash is trimmed off by —- in a subsequent operation

A. pickling
B. upset
C. trimmer dies
D. Forging

63. With —-
, a mold is produced by packing sand
around a pattern.

A. sand molding
B. gravity molding
C. die casting
D. plastic molding

64. To facilitate the removal of the pattern, all surfaces parallel to the direction of withdrawal are slightly tapered. This taper is called

A. gate
B. riser
C. sprue
D. draft

65. In the gating system, the metal is poured into a sprue hole and enters a vertical passage known as. —

A. gates

B. downgate

C. draft

D. risers

66. Serve as accumulators to feed molten metal into the cavity during initial shrinkage

A. gates

B. downgate

C. draft
D. risers

67. An entrance to the cavity maybe constricted to control the rate of fill and such constrictions are known as

A. gates
B. downgate
C. sprue
D. risers

68. Molten metal is poured into a metal or graphite mold where pressure is not used to fill the mold.
A. Sand molding
B. Plastic molding
C. Gravity molding
D. Non-gravity molding

69. Suitable for creating parts of zinc, aluminum, copper, magnesium, and lead/tin alloys.

A. die casting

B. investment casting

C. centrifugal casting

D. continuous casting

70. More than how many percent of all die casting uses zinc alloys?
А. 50%
B. 25%
C. 75%
D. 80%

71. Molten metal is forced under pressure into a permanent metallic mold known as —-

A. die
B. mold
C. alloy
D. torpedo

72. The most known lubricants being utilized in whatever category of load and speed are oil, air, grease and dry lubricants like —

A. bronze
B. silicon
C. lead
D. graphite

73. It is a work-supporting device which is bolted to the saddle of the lathe machine. It travels with the cutting tool it is a prevention of the springing away of the work piece from cutting tools.
A. rubber-flex collets
B. follower rest
C. tool post
D. carriage stop

74. Which of the following raw materials are used in the foundry molding operation?
A. silica sand, bentonite, flour/paste water
B. silica sand paste, graphite electrode
C. Silica sand and paste
D. silica sand, linseed oil, flour

75. Which of the following is not a part of micrometer caliper ?
A. thimble
B. spindle
C. head screw
D. anvil

76. To avoid brittleness of weld or the residual stress in the welding, it is normally stress relieved by —
A. normalizing
B. flame hardening
C. tempering
D. annealing

77. Almost always the soldering materials are a combination of the following alloys

A. tin & antimony
B. lead & tin
C. lead & antimony
D. All of these

B

79. Which of the following cannot be used in drilling machine?
A. reaming
B. lapping
C. spot facing
D. broaching

80. The purpose of lubrication is as mentioned except
A. to lighten the load
B. prevent adhesion
C. prevent corrosion/oxidation
D. cool the moving elements

81. Tools usually used in wood pattern making in foundry shop.

A. saws and chisels
B. knives and drills
C. band saw
D. drill machine

82. Machine shop instrument for checking the flatness of plane surfaces to 10ths of thousandths of a centimeter.
A. blade type micrometer
B. planimeter
C. dial caliper
D. micrometer

83. The welding made along the edges of two parallel plates is called —-
A. groove joint
B. edge joint
C. fillet joint
D. corner joint

C

85. Which of the following gasket material is not used for high temperature?


A. Asbestos

B. Plastic nylon

C. Rubberized

D. Wool

86. The most common useful tools to measure diameter in machine shop operation but normally and always used with steel scale for measurement.

A. Caliper

B. Micrometer

C. Protractor

D. Vernier

87. In impact force introduced to cause the metal to flow in a shaped mold according to the shape to dies made.


A. Hardness
B. Spinning
C. Swaging
D. Toughness

88. Wood pattern in the foundry is normally constructed out of —
A. dried sap wood
B. hard wood
C. kiln dried wood
D. scrap wood

89. What tool will be used in making wood pattern in the foundry shop?
А. Band saw
B. Drill machine
C. Hammer
D. Saw and chisel

90. Cutting lubricant used in drilling reaming, and tapping for brass and bronze.
A. Dry
B. Soda water
C. Soluble oil
D. Turpentine

91. Prepared tool bit will now consist of face, nose and

A. cutting tool

B. shank

C. sharp tool

D. tool edge

92. This is an alloy in bronze casting that assists lubrication and in itself a lubricant —

A. Lead

B. Manganese

C. Phosphorous
D. Tin

93. Cutting lubricants used in drilling, reaming and tapping for hard spots in cast iron.
A. Dry
B. Kerosene
C. Soda water
D. Turpentine

94. A type of chisel used in cutting of keyways, square corners or slots.
A. Cape
B. Diamond head
C. Flat
D. Round

95. A process in which metal is dipped in dilute acid solutions to remove dirt, grease, and oxides.
A: Pickling
B. Sheradizing
C. Polishing
D. Pakerizing

96. Describes very rough grinding, such as that performed in foundries to remove gates, fins, and risers from castings.
A. Snagging
B. Lapping
C. Honing
D. Snugging

97. A fine grinding operation used to obtain exact fit and dimensional accuracy.

A. Honing
B. Lapping
C. Buffing
D. Burnishing

98. The process of separating different sizes of the same material.

A. Screening

B. Sieving

C. Separation

D. Fractioning

99. The process of separating a material into a variety of specifically sized groups.


A. Centrifuging

B. Sieving

C. Fractioning

D. Screening

100. It is the process that cold works a limited amount of material, thus giving a higher strength, and it leaves a surface compressive stress.
A. surface finishing
B. tensioning
C. surfacing
D. surface rolling