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MD ELEMENTS PER 50 v2 > E8_1 > Flashcards

E8_1 Flashcards

1
Q
  1. It is also known as climb milling in which the rotation of the cutter and the movement of the table is in the same direction.

A. Down milling
B. Up milling
C. Straddle milling
D. Gang milling

A

A. Down milling

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2
Q
  1. The _______ is a machine tool used to remove mtal from a work piece to give it the required shape and size.

A. Shaper
B. Planer
C. Lathe
D. Grinder

A

C. Lathe

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3
Q
  1. It is the method of grinding cylindrical surfaces.

A. Centerless grinding
B. Plunge-cut grinding
C. Through feed grinding
D. None of these

A

A. Centerless grinding

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4
Q
  1. It is the angle between the side cutting edge and the longitudinal axis of the tool.

A. Side cutting edge angle
B. End cutting edge angle
C. Side relief angle
D. End relief angle

A

A. Side cutting edge angle

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5
Q
  1. It is a surface finishing process and is used to produce a lustrous surface of attractive appearance.

A. Polishing
B. Buffing
C. Lapping
D. Glazing

A

B. Buffing

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6
Q
  1. It consists of surface irregularities , which result from the various manufacturing process.

A. Lay
B. Waiveness
C. Flaws
D. Roughness

A

D. Roughness

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7
Q
  1. A _____ is formed when a shaft rotates in a bush, lines of the bore of a housing.

A. Ball bearing
B. Roller bearing
C. Plain bearing
D. Needle bearing

A

C. Plain bearing

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8
Q
  1. CNC in machine shop means

A. Computer Number Control
B. Computer Numerical Control
C. Communication Network control
D. Computer Network Center

A

B. Computer Numerical Control

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9
Q
  1. It is the time lost due to break downs, waiting for tools, minor accident etc.

A. Set up time
B. Handling time
C. Machining time
D. Down time

A

D. Down time

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10
Q
  1. Refers to the process of separating or removing the burning of combustible material from the neighborhood of the fire.

A. Starvation
B. Blanketing
C. Cooling
D. None of these

A

A. Starvation

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11
Q
  1. What is the stress to strain ratio within the elastic limit?

A. Elastic limit
B. Elasticity
C. Modulus of elasticity
D. Compressive ratio

A

C. Modulus of elasticity

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12
Q
  1. A material plane was subjected to a load. When the load was removed, the strain disappeared. From the structural change which of the following can be considered about this material?

A. It does not follow Hooke’s law
B. It is elastic
C. It has high modules of elasticity
D. It is plastic

A

B. It is elastic

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13
Q
  1. Allowance added in the casting pattern to compensate for the contraction of metal.

A. Tapering allowance
B. Finish allowance
C. Shrinkage allowance
D. Draft pattern

A

C. Shrinkage allowance

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14
Q
  1. Ratio of the angle of action to the pitch angle.

A. Contact ratio
B. Ratio of gearing
C. Approach ratio
D. Module

A

A. Contact ratio

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15
Q
  1. General purpose grade of steel used for broiler plate, structurals etc. usually with carbon content of:

A. 0.20 to 0.30%C
B. 0.35 to 0.0%C
C. 0.15 to 0.25%C
D. All of these

A

A. 0.20 to 0.30%C

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16
Q
  1. The angle made by the helix of the thread (in a straight thread) at the pitch diameter with a plane perpendicular to the axis called:

A. Angle of thread
B. Lead angle
C. Truncation
D. Lead

A

B. Lead angle

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17
Q
  1. The principle materials used in the production of metal working tools.

A. High carbon steel
B. Titanium, phosphorus
C. Tungsten, silicon, hadfield Mn
D. Vanadium, chromium, molybdenum

A

A. High carbon steel

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18
Q
  1. In the interest of design simplification and good kinematic compromise bevel gears adopted a standard pressure angle of _____ degrees.

A. 20o involute stub
B. 141/2 involute full depth
C. 20o
D. 171/2

A

C. 200

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19
Q
  1. The property of material that relates the lateral strain to longitudinal strain.

A. Stress
B. Poisson’s ratio
C. Strain
D. Endurance limit

A

B. Poisson’s ratio

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20
Q
  1. It is generally recommended and normal for a designer to add a hunting tooth to evenly distribute the wear on meshing teeth like a 53 teeth gears mesh with 30 teeth pinion. Find the rotation of pinion to mesh with same pair of teeth again.

A. 120
B. 61
C. 81
D. 53

A

D. 53

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21
Q
  1. When does a chisel get blunt?

A. When it is properly heat treated
B. When it is not properly heat treated
C. When it is properly tempered
D. When it is not properly tempered

A

B. When it is not properly heat treated

22
Q
  1. What is it necessary to provide tolerance?

A. It saves the labor charges
B. It saves the material from wastage
C. It saves the time
D. All of these

A

D. All of these

23
Q
  1. It is done then and there by adjusting or repairing the faults come in notice during the work.

A. Preventive maintenance
B. Predictive maintenance
C. Routine maintenance
D. Corrective maintenance

A

C. Routine maintenance

24
Q
  1. A _______ is used between the cutting tool and work piece to minimize the friction heat.

A. lubricant
B. Coolant
C. Water
D. Alcohol

A

B. Coolant

25
Q
  1. Which of the following is NOT a function of bearings

A. To support the shaft
B. To guide the shaft
C. To give free rotation to the shaft
D. To transmit power

A

D. To transmit power

26
Q
  1. It is a process of cleaning the face of grinding wheel by means of a dresser for removing the glazing and loading of wheel and to improve the cutting action of a wheel.

A. Dressing
B. Polishing
C. Truing
D. Lapping

A

A. Dressing

27
Q
  1. What should be the top rake angle to cut brass?

A. 0o
B. 15o
C. 30o
D. 45o

A

A. 0o

28
Q
  1. It is a long, tapered punch used for loosening straight pins, taper pins, rivets and other small parts being disassembled.

A. Drive-pin punch
B. Hand punch
C. Drift punch
D. Center punch

A

C. Drift punch

29
Q
  1. A tool used for turning nuts or bolts.

A. Plier
B. Wrench
C. Long nose
D. C – Clamp

A

B. Wrench

30
Q
  1. A sharp pointed steel tool used to scribe lines on metal being laid out.

A. Divider
B. Scriber
C. Trammel
D. Hermaphrodite calliper

A

B. Scriber

31
Q
  1. The shaft whose torque varies from 2000 to 6000 in lbs has 1 ½ in. in diameter and 60000 psi yield strength. Compute for the shaft mean average stress.

A. 6036 psi
B. 5162 psi
C. 6810 psi
D. 5550 psi

A

A. 6036 psi

32
Q
  1. The angle made by the helix of the thread (In a straight thread) at the pitch diameter with a plane perpendicular to the axis is called:

A. Lead angle
B. Lead
C. Trunction
D. Angle of thread

A

A. Lead angle

33
Q
  1. The rule of thumb in journal bearing design; the clearance ratio/clearance should be:

A. 0.0090
B. 0.0010
C. 0.0042
D. 0.00120

A

B. 0.0010

34
Q
  1. The moment of inertia is a rectangle whose base is “b” height “h” about its base is:

A. bh3/4
B. bh3/24
C. bh3/12
D. bh3/3

A

D. bh3/3

35
Q
  1. Cold rolled shafting is not available in diameter larger than:

A. 6 inches
B. 6 ½ inches
C. 5 inches
D. 5 ½ inches

A

C. 5 inches

36
Q
  1. Height of tooth above pitch circle or the radial distance between pitch circle and top land of the tooth.

A. Top root
B. Land
C. Addendum
D. Hunting tooth

A

C. Addendum

37
Q
  1. The function of clutch in the machine tool is:

A. Lowering of drive speed
B. To disconnect or connect at will the drive
C. Alignment of drive shaft
D. To insure that two shaft line up at high speed

A

B. To disconnect or connect at will the drive

38
Q
  1. A resulting forces that replace two or more forces acting together.

A. Vector
B. Resultant
C. Couple
D. Equilibrium

A

B. Resultant

39
Q
  1. Stress relieving is also _____ for the purpose of reducing the internal stresses of steel material/metal.

A. Normalizing
B. Annealing
C. Tempering
D. All of these

A

C. Tempering

40
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

41
Q
  1. A ____ is used to be test the accuracy of holes.

A. Snap gage
B. Ring gage
C. Plug gage
D. Depth gage

A

C. Plug gage

42
Q
  1. A ____ consists of a hardened and ground steel bar in which two hardened and ground of the same diameter are set.

A. Caliper
B. Gage block
C. Sine bar
D. Micrometer

A

C. Sine bar

43
Q
  1. A ______ consists of a slide and a swivel vise mounted on the compound rest in place of the tool post.

A. Milling attachment
B. Relieving attachment
C. Grinding attachment
D. Reaming attachment

A

A. Milling attachment

44
Q
  1. ________ are hardened steel devices with a taper shank on one end and a 60 degree point at the other end.

A. Tailstock centers
B. Lathe centers
C. Live centers
D. Dead centers

A

B. Lathe centers

45
Q
  1. It is a work holding device.

A. Arbor
B. Mandrel
C. Jigs
D. Fixtures

A

B. Mandrel

46
Q
  1. The cutting of groove nest to a shoulder on a piece of work.

A. Undercutting
B. Necking
C. Grooving
D. Any of these

A

D. Any of these

47
Q
  1. The operation of producing a beveled edge at a specified angle of the nd of a turned diameter.

A. Chamfering
B. Knurling
C. Honing
D. Undercutting

A

A. Chamfering

48
Q
  1. It is a large casting located on the left end of the bed.

A. Tailstock
B. Head stock
C. Carriage
D. Chuck

A

B. Head stock

49
Q
  1. A ________ is a thread that has a lead equal to pitch.

A. Right hand thread
B. Left hand thread
C. Single thread
D. Multiple head

A

C. Single thread

50
Q
  1. The distance between the crest and the base of the thread, measured perpendicular to the axis.

A. Depth of thread
B. Length of engagement
C. Depth of engagement
D. Axis of thread

A

A. Depth of thread

MD ELEMENTS PER 50 v2 (10 decks)

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