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MD ELEMENTS PER 50 v2 > E8_2 > Flashcards

E8_2 Flashcards

1
Q
  1. Matensite (stainless steel) contains 4 to 26% Cr. And a maximum of _____% nickel.

A. 2.5
B. 3.5
C. 3.25
D. 2.0

A

A. 2.5

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2
Q
  1. Compute the deflection of a 18 coils helical spring having a load of 100 kgs. The modulus of elasticity in shear of spring is 96.62 GPa, OD pof 9 525 mm. The spring is square and ground ends.

A. 9 mm
B. 112 mm
C. 101 mm
D. 14 mm

A

C. 101 mm

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3
Q
  1. A flanged bolt coupling has ten (10) steel 25.4 mm diameter bolts evenly tighten around a 415 mm bolt circle. Determine the torque capacity of the connection if the allowable shearing stress in the bolt is 50 MN/m2.

A. 59.95 KN-m
B. 46.15 KN-m
C. 52.6 KN-m
D. 43.8 KN-m

A

C. 52.6 KN-m

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4
Q
  1. The material that can cut/wear hardest substance subjected to:

A. Carbide
B. Tungsten
C. Abrasive
D. Vanadium

A

C. Abrasive

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5
Q
  1. A ridge of uniform section in the form of a helix cut around the circumference of a cylinder and advancing along the axis.

A. Thread roots
B. Screw threads
C. Helix thread
D. Chamfers

A

B. Screw threads

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6
Q
  1. Cast iron flywheels are commonly designated with factor of safety of:

A. 10 to 13
B. 10 to 14
C. 10 to 12
D. 8 to 13

A

A. 10 to 13

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7
Q
  1. Class of material exhibiting decreased electrical conductivity with increasing temperature.

A. Aluminum
B. Metals
C. P-type semi-conductors
D. N-type semi-conductors

A

B. Metals

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8
Q
  1. The welding made along the edges of twp parallel plates is called:

A. Groove joint
B. Edge joint
C. Fillet joint
D. Corner joint

A

B. Edge joint

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9
Q
  1. Not part and in fact should not be used in the steel melting process.

A. Coke
B. Zinc
C. Silicon
D. Aluminum

A

A. Coke

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10
Q
  1. Rule of thumb in calculating the equipment foundation mass should be _____ times the weight of the machinery it is supposed to support.

A. 3 – 5
B. 3 – 9
C. 3 – 6
D. 2 – 4

A

A. 3 – 5

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11
Q
  1. Used to permit lever shift for vertical travel of rail.

A. Ball crank
B. Clamp plates
C. Plunger knob
D. None of these

A

C. Plunger knob

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12
Q
  1. It is mounted on the top of the column and is guided in perfect alignment by the machined dovetailed surfaces.

A. Over arm
B. Spindle
C. Arbor
D. Saddle

A

A. Over arm

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13
Q
  1. Refers to circular milling attachment that is bolted to the top of the table of a plain or universal milling machine.

A. Slotting attachment
B. Rotary attachment
C. Milling attachment
D. Spiral attachment

A

B. Rotary attachment

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14
Q
  1. The process of removing burrs and the gates and risers left on casting after the molding process.

A. Reaming
B. Snagging
C. Honing
D. Knurling

A

B. Snagging

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15
Q
  1. The ____ supports the table on the cross rail and moves across it from left to right.

A. Apron
B. Bearing
C. Spindle
D. Handle

A

A. Apron

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16
Q
  1. Name of mechanism, which a welding operator holds during gas welding and at the end of which the gages are burred to perform the various gas welding operation.

A. Hose
B. Torch
C. Gage
D. Switch

A

B. Torch

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17
Q
  1. A tool used for measuring diameters.

A. Protractor
B. Scriber
C. Caliper
D. Compass

A

C. Caliper

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18
Q
  1. A fine grained, slaty silica rock used for sharpening edged tools.

A. Oilstone
B. Surface grinder
C. Rocky oil
D. None of these

A

A. Oilstone

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19
Q
  1. Device used to prevent leakage of media.

A. Gasket
B. Seal
C. Shield
D. Stopper

A

B. Seal

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20
Q
  1. Flexible material used to seal pressurized fluids normally under dynamic conditions.

A. Packing
B. Gasket
C. Shield
D. Seal

A

A. Packing

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21
Q
  1. The strength of non-ferrous alloys is at maximum at room temperature while that of ferrous metal has a maximum strength at _____0 F.

A. 400
B. 450
C. 1200
D. 350

A

A. 400

22
Q
  1. The ratio of stress acting on an elastic substance to the decrease in volume per unit volume.

A. Bulk modulus
B. Elastic limit
C. Modules of resilience
D. Modules of elasticity

A

A. Bulk modulus

23
Q
  1. The normal helix angles in helical gear is recommended in the range of ____ degrees.

A. Less than 18
B. 15 to 25
C. 20 to 35
D. 20 to 30

A

B. 15 to 25

24
Q
  1. Type of bolt commonly used in the construction that is threaded in both ends.

A. Stud bolt
B. Hex bolt
C. Acne threaded bolts
D. Square threaded bolts

A

A. Stud bolt

25
Q
  1. It is rigid place which serves to transmit force from a piece another piece or to cause/control motion.

A. Follower
B. Cam motion
C. Crank
D. Link

A

D. Link

26
Q
  1. A 20 kgs. Cast iron piece rest on a plain horizontal aluminum surface. To move the object it needs a force of 7 lbs. The density of Al is 0.098 lb/in3 and iron is 0.260 lb/in3.

A. 0.172
B. 1.601
C. 0.186
D. 0.160

A

D. 0.160

27
Q
  1. Which of the following is an iron based alloy containing 9 – 16% chromium?

A. Mn hadfield steel
B. Stainless steel
C. Chrome-moly steel
D. High chrome steel

A

B. Stainless steel

28
Q
  1. Shafting up to 3 inches in diameter is usually made from cold rolled steel and the common biggest diameter of cold rolled steel is:

A. 4 ½ inches
B. 6 ¾ inches
C. 6 7/8 inches
D. 5 inches

A

D. 5 inches

29
Q
  1. It is ideal for maximum quietness in sprockets drive operation to choose ____ or more teeth.

A. 24
B. 27
C. 18
D. 21

A

B. 27

30
Q
  1. All associated with standard material specification, 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

A

C. Southeast Asia Iron and Steel Institute

31
Q
  1. A hand tool used to measure tension of bolts.

A. Tensile range
B. Torque wrench
C. Hooke’s gauge
D. Spring balance

A

B. Torque wrench

32
Q
  1. A hand tool used to measure engine crank web deflection.

A. Feeler gage
B. Compound gage
C. Distortion gage
D. Dial gage

A

C. Distortion gage

33
Q
  1. A device used for accurately measuring diameters.

A. Dial gage
B. Feeler gage
C. Caliper
D. Micrometer

A

D. Micrometer

34
Q
  1. It is used to true and align machine tools, fixtures and works.

A. Dial indicator
B. radial indicator
C. Dial gage
D. Feeler gage

A

A. Dial indicator

35
Q
  1. The operation of making a cone-shaped enlargement of the end of a hole, as for a recess for a flattened screw.

A. Counter boring
B. Counter sinking
C. Reaming
D. Drilling

A

B. Counter sinking

36
Q
  1. A kind of chuck, which has reversible jaws, which could be adjusted separately.

A. Independent chuck
B. Combination chuck
C. Magnetic chuck
D. Universal chuck

A

A. Independent chuck

37
Q
  1. It is used for cutting long pieces of metals.

A. Planer
B. Shaper
C. Power saw
D. Broaching machine

A

C. Power saw

38
Q
  1. It is used for external, internal and relieving of mill cutters and taps

A. Milling attachment
B. Thread attachment
C. Taper attachment
D. Relieving attachment

A

D. Relieving attachment

39
Q
  1. It is the stretching or spreading of metal by hammering

A. Peening
B. Flaring
C. Upsetting
D. Bending

A

A. Peening

40
Q
  1. The ______ is the most common of the standard tapers.

A. Brown
B. Jarno
C. Sharpe
D. Morse

A

D. Morse

41
Q
  1. For stable equipment foundation, the total combined engine driven equipment and foundation center of gravity must be kept below the foundation’s too that usually about ____ times the usual total combined weight of the machinery it is supposed to support.

A. 3 to 4
B. 2 to 4
C. 3 to 7
D. 3 to 5

A

D. 3 to 5

42
Q
  1. A cylinder tank with 10” inside diameter contains oxygen gas at 2500 psi. Calculate the required wall thickness in (mm) under stress of 28 000 psi.

A. 11.34 mm
B. 12.44 mm
C. 10.24 mm
D. 10.54 mm

A

A. 11.34 mm

43
Q
  1. The process of opening the joint portion immediately after the welding greatly improves the fusion structures avoids possible cracking, avoids possible distortion etc. Peening can also _____ process at the same time.

A. Tempering
B. Normalizing
C. Martempering
D. Annealing

A

A. Tempering

44
Q
  1. What do you call the distance between rivet center nearest each other in adjacent rows?

A. Pitch
B. Margin
C. Back pitch
D. Diagonal pitch

A

D. Diagonal pitch

45
Q
  1. Which of the following is a major alloy in tool steel?

A. Cr
B. Cobalt
C. Fen
D. Mn

A

A. Cr

46
Q
  1. Should two equal and opposite collinear forces is added to the forces already in equilibrium, which of the following statements is true?

A. Unbalanced moment is maintained
B. Equilibrium is maintained
C. Equilibrium id disturbed
D. It creates an unbalanced situation

A

B. Equilibrium is maintained

47
Q
  1. In pressure vessels, which of the following resists internal pressure through bending?

A. Shell-type element
B. Cam type element
C. Plate-type element
D. Spherical type element

A

C. Plate-type element

48
Q
  1. Which of the following flanges is suitable for low and moderate pressure?

A. Ring-flange
B. Lap joint flange
C. Tapered-hub flange
D. Welding neck type

A

A. Ring-flange

49
Q
  1. It is the process of pre-stressing or over-stressing of a hollow cylindrical member beyond the elastic range.

A. Presstagge
B. Autofrettage
C. Stress relieving
D. Countersinking

A

B. Autofrettage

50
Q
  1. It is the phenomenon occurring when two touching surfaces have a high contact pressure and when these surfaces have minute relative moton.

A. Prestressing
B. Fretting
C. Friction
D. Carving

A

B. Fretting

MD ELEMENTS PER 50 v2 (10 decks)

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