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MD ELEMENTS PER 50 > E1_1-50 > Flashcards

E1_1-50 Flashcards

1
Q
  1. The maximum stress to which a standardized test specimen may be subjected without permanent deformation.

A. Endurance limit
B. Proportional limit
C. Elastic limit
D. Plastic limit

A

C. Elastic limit

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2
Q
  1. The modulus of elasticity is a measure of:

A. Stiffness
B. Toughness
C. Resilience
D. Hardness

A

A. Stiffness

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3
Q
  1. Aging at moderately elevated temperature expedites the process and

A. Natural aging
B. Artificial aging
C. Normal aging
D. Supernatural aging

A

B. Artificial aging

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4
Q
  1. It is a tendency to fracture without appreciable deformation

A. Ductility
B. Brittleness
C. Malleability
D. Plasticity

A

B. Brittleness

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5
Q
  1. It is the characteristic of exhibiting different properties when tested in different directions

A. Allotropy
B. Anistropy
C. Isentropic
D. Isotropic

A

B. Anistropy

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6
Q
  1. It is one in which specimen, supported at both ends as a simple beam is broken by the impact strength of the metal

A. Charpy test
B. Izod test
C. Rockwell test
D. Universal test

A

A. Charpy test

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7
Q
  1. Steel that has been deoxidized with a strong deoxidizing agent such as silicon or aluminum, in order to eliminate a reaction between the carbon and oxygen during solidification.

A. Carbon steel
B. Tool steel
C. Killed steel
D. Structural steel

A

C. Killed steel

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8
Q
  1. Involves the loss of ductility because of a physical or chemical change of the material is known as

A. Embrittlement
B. Pitting
C. Cold shortness
D. Decarburization

A

A. Embrittlement

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9
Q
  1. A material commonly used for shielding or screening magnetism

A. Brass
B. Copper
C. Aluminum
D. Soft iron

A

D. Decarburization

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10
Q
  1. A magnet is able to attract

A. Iron, aluminum and brass
B. Iron, cobalt and zinc
C. Iron, copper and nickel
D. Nickel, cobalt and steel

A

D. Nickel, cobalt and steel

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11
Q
  1. In threaded members, which of the following defines N.C?

A. Neutral cut
B. National cut
C. National coarse
D. Not Center

A

C. National coarse

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12
Q
  1. In threaded members, which of the following represents N.F?

A. National file
B. Neutral file
C. National file
D. Not found

A

C. National file

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13
Q
  1. What tool used in precision work to smooth or enlarge holes?

A. Round out
B. Reamer
C. Drift pin
D. Protractor

A

B. Reamer

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14
Q
  1. Which of the following chisels would be used for cutting oil grooves?

A. Diamond–point chisel
B. Round-nose chisel
C. Cold chisel
D. Hot chisel

A

B. Round-nose chisel

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15
Q
  1. How do you call the tool used for cleaning files?

A. File cleaner
B. File oilstone
C. File card
D. Scraper

A

C. File card

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16
Q
  1. Which of the following is not a cut of file?

A. Smooth
B. Half-round
C. Second cut
D. Bastard

A

B. Half-round

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17
Q
  1. Which of the following is the smallest size drill?

A. # 80
B. # 1
C. # 60
D. # 0

A

A. # 80

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18
Q
  1. Which of the following is the largest size drill?

A. A
B. Z
C. X
D. XX

A

B. Z

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19
Q
  1. The size of a drill is stamped on the:

A. Point
B. Margin
C. Shank
D. Flute

A

C. Shank

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20
Q
  1. Which of the following materials is used for making permanent magnets?

A. Carbon steel
B. Platinum cobalt
C. Alnico
D. All three mentioned

A

D. All three mentioned

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21
Q
  1. One of the following is the best conductor of electricity. Which one/

A. Graphite
B. China clay
C. Porcelain
D. Ceramics

A

A. Graphite

22
Q
  1. Dielectric strength of a material depends on the material’s

A. Moisture content
B. Thickness
C. Temperature
D. All of these

A

D. All of these

23
Q
  1. Which medium has highest value of dielectric strength?

A. Glass
B. Mica
C. Porcelain
D. Quartz

A

B. Mica

24
Q
  1. Which of the following is a primary cell?

A. Mercury – oxide
B. Lead – acid
C. Nickel – iron – alkaline
D. Nickel – cadmium – alkaline

A

A. Mercury – oxide

25
Q
  1. Which of the following contact point metals has highest melting point?

A. Silver
B. Tungsten
C. Gold
D. Copper

A

C. Gold

26
Q
  1. A material best suited for manufacturing of fuse wire

A. Aluminum
B. Silver
C. Lead
D. Copper

A

B. Silver

27
Q
  1. The laminations are made from
    A. Low carbon steel
    B. Silicon sheet steel
    C. Nickel alloy steel stays
    D. Chrome steel sheets
A

B. Silicon sheet steel

28
Q
  1. Which of the following metals gets deposited to provide an undercut for chromium?

A. Copper
B. Silver
C. Bronze
D. Lead

A

C. Bronze

29
Q
  1. In nickel – iron cell, the electrolyte is:

A. Dilute sulphuric acid
B. Dilute potassium hydroxide
C. Dilute sodium ammonium hydroxide
D. Dilute sodium chloride solution

A

B. Dilute potassium hydroxide

30
Q
  1. Which of the following is not a standard thread form?

A. Square
B. Double flute
C. American National
D. 60 deg. sharp V

A

A. Square

31
Q
  1. How do you call the tool used to cut threads in a hole?

A. Top
B. Bit
C. Tap
D. Reamer

A

C. Tap

32
Q
  1. Hand taps are provided in sets of three. Which of the following set of three?

A. Taper, plug and end
B. Taper, plug and bottom
C. Short, taper and bottom
D. Short, medium and long

A

B. Taper, plug and bottom

33
Q
  1. Which of the following taps should be used to start a thread?

A. Plug
B. Bottom
C. Short
D. Taper

A

D. Taper

34
Q
  1. Which of the following size of the drill is used in preparing to tap a hole?

A. Equal to the size of the tap
B. Larger than the size of the tap
C. Smaller than the size of the tap
D. None of these

A

C. Smaller than the size of the tap

35
Q
  1. Pipe taps are:

A. The same size from end to end
B. Tapered
C. Not fluted
D. Not hardened

A

B. Tapered

36
Q
  1. When preparing to tap a hole for a pipe fitting the size of the drill will be:

A. Larger than the tap size
B. Smaller than the tap size
C. Equal to the size of the tap
D. None of these

A

C. Equal to the size of the tap

37
Q
  1. Which of the following does not have to be lubricated when drilling?

A. Steel
B. Monel
C. Brass
D. Tool steel

A

B. Monel

38
Q
  1. How do you call the tool used when cutting a hole in the side of a round piece of metal?

A. Vise
B. “V” block
C. Jaw holder
D. Chuck

A

B. “V” block

39
Q
  1. When measuring a drill for size measure across the:

A. Margins
B. Shank
C. Flutes
D. Point

A

A. Margins

40
Q
  1. Which of the following is not a primary cell?

A. Carbon zinc
B. Silver oxide
C. Silver zinc
D. Nickel – cadmium

A

C. Silver zinc

41
Q
  1. Select from the conductors below that has the least electrical conductivity

A. Lead
B. Tin
C. Zinc
D. Aluminum

A

A. Lead

42
Q
  1. The material used for commutator brushes is mostly

A. Copper
B. Mica
C. Carbon
D. Cast iron

A

C. Carbon

43
Q
  1. Generally, the material for thermocouple is

A. Chrome copel
B. Chrome alumel
C. Platimum rhodum
D. Any of these

A

D. Any of these

44
Q
  1. Select the best conductor of electricity

A. Carbon
B. Silver
C. Copper
D. Iron

A

B. Silver

45
Q
  1. Any heating ad cooling of steel that produces a rounded or globular form of carbide.

A. Spheroidizing
B. Malleability
C. Graphitizing
D. Normalizing

A

A. Spheroidizing

46
Q
  1. Steel that has been hammered rolled or drawn in the process of manufacture.

A. Wrought steel
B. Rimmed steel
C. Killed steel
D. Stainless steel

A

A. Wrought steel

47
Q
  1. Which of the following improves red hardness?

A. Boron
B. Cobalt
C. Copper
D. Columbium

A

B. Cobalt

48
Q
  1. An alloy of nickel and copper.

A. Monel
B. Iconel
C. Titanium
D. Vanadium

A

A. Monel

49
Q
  1. Commutator segments are made of

A. Zinc
B. Brass
C. Copper
D. Nickel

A

C. Copper

50
Q
  1. If you wanted to check the face of a pump slide valve or other flat-faced valve, you could check for trueness on a:

A. Flat board
B. Piece of glass
C. Surface plate
D. Bearing plate

A

C. Surface plate

MD ELEMENTS PER 50 (10 decks)

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