1. Locked chain satisfy Equation

n =2p Equation

j

Only Equation

Only Equation

Sqtisfy both the Equations

Doesn't satisfy both the Equations

2. Roller bearing is a

Spherical pair

Higher pair

Lower pair

Cylindrical pair .

3. One of the following mechanisms is not exact straight line mechanism:

Grasshopper Mechanism

Hart Mechanism

Scott Russel Mechanism

Peaucellier Mechanism

4. Which of the following is an inversion of single slider crank chain?

Hand pump

Oldham's coupling

Scotch yoke

Elliptical trammel

5. The size of gears is usually specified by:

Circular pitch

Outside diameter

Pitch circle diameter

Inside diameter

6. One of the following is not pure rotation:

Windmill

The m hand of a clock

Bicycle wheel

Flywheel

7. Knee joint of a human being has degree(s) of freedom.

One

Two

Three

Zero

8. The frictional torque transmitted by a plate clutch is same as that of

Flat pivot bearing

Flat collar bearing

Conical pivot bearing

Trapezoidal pivot bearing

9. The tractive resistance during the propulsion of a wheeled vehicle depends on

Road resistance

Aerodynamic resistance

Gradient resistance

All of these

10. The size of gears is usually specified. by:

Circular pitch

Outside diameter

Pitch circle diameter

Inside diameter Contd.

11. In a reverted gear train, the axes of the first and the last gear are:

Parallel

Co-axial

Neither parallel nor co-axial

Perpendicular

12. The axis of spin, the axis of precession and the axis of gyroscopic torque are in

Two parallel planes

Two perpendicular planes

. Three perpendicular planes

Three parallel planes

13. The critical speed of a rotating shaft with a mass at the centre the natural frequency of transverse vibration of the system.

Equal

Less than

More than

Dependent upon


14. A torsional vibratory system having two rotors connected by a shaft has:

One node

Two nodes

Three nodes

No node

15. The gyroscopic acceleration depends upon:

Instantaneous value of co

The rate at which the axis of. spin changes its speed

Both and

None of these

16. The normal circular pitch in helical gears is given by

<img src='./qimages/3399-16.jpg'>

17. A differential uses gear train.

Simple

Epicyclic

Reverted

Compound

18. Wire ropes used in lifts and hoists are:

Cross ply

Regular lay


Long lay

Reverse laid ropes

19. Angle of twist allowed in case of camshaft is

Dependent on its length

Restricted to 1/2 irrespective of length of the shaft

Depending on the torque acting on it

Dependent on the nature of the engine

20. Woodruff key is used for:

Heavy torque at high speeds

Low torque at high speeds

Heavy torque at low speeds

Low torque at low speeds

21. An open coiled helical spring is subjected to an axial force; the wire of the spring is subjected to

Direct shear only

Combined shear and bending only

Combined shear, bending and twisting

Combined shear and twisting only

22. Two shafts A and 8 are made of same material. The diameter of shaft 8 is twice that of shaftA. The ratio of power which can be transmitted by shaft A to that of shaft 8 is

1/2

1/4

1/8

1/16

23. In a multiple V-belt drive, when a single belt is damaged, it is preferable to change the entire set to:

Reduce vibration

Reduce slip

Ensure uni from loading

Ensure proper alignment

24. Which one of the following pairs is not correctly matched?

Positive drive-belt drive

High velocity ratio-worm gearing

Non parallel and non­ intersecting-spiral gear

Diminished noise and smooth operation-helical gear

26. When a helical compression spring is cut into two equal halves, the stiffness of each of the resulting springs will be

Unaltered

One half

Doubled

One fourth

27. Thread has an inclined angle of 290.

Acme

Buttress

BritishAssociation

Square

28. In order to have smooth operation, the minimum number of teeth on the small sprocket for moderate speed should be:

15

17

21

25

29. To increase the capacity of ball bearing is provided to increase the number of balls in the bearing.

Grease

Collar

Filling notch

Less gap

30. One of the following power screws transmit power in one direction only:

Buttress thread

Acme thread

Square thread

Trapezoidal thread

31. A solid shaft transmits a torque of T. The allowable shear stress is What is the diameter of the shaft 16T

<img src='./qimages/3399-31.jpg'>

32. A thin cylinder with both ends closed is subjected to internal pressure p. The longitudinal stress at the surface has been calculated as Maximum shear stress at the surface will be equal to

20 alpha0

1.5 alpha0

alpha 0

0.5 alpha0

33. In a thick cylinder pressurized from inside, the hoop stress is maximum at

The· centre of the wall thickness

The outer radius

The inner radius

Both inner and outer radii

34. An open coiled helical spring of mean diameter d is subjected to an axial force P. The wire of the spring is subjected to

Direct shear stress only

Combined shear and bending only

Combined shear, bending and twisting

Combined shear and twisting only

35. The maximum distortion enerQY theory of failure is suitable to predict the failure of one of the materials is

Brittle material

Ductile material

Plastics

Composite materials

36. . The effect of a force on a body depends on its:

Direction

Magnitude

Position

All of these

37. Two identical circular rods made of cast iron and mild steel are subjected to same magnitude of axial force. The stress developed is within proportional limit. Which of the following observation is correct?

Both rods elongate by same amount

MS rod elongates more

CI rod elongates more

Both stress and strain are equal in both rods

38. A beam is said to be of uniform strength, if:

The bending moment is same throughout the beam

The shear stress is same throughout the beam

The deflection is same throughout the beam

The bending stress is same at every section along with its longitudinal axis

39. The point of contra flexure is a point where:

Shear force changes sign

Bending moment changes sign

Shear force maximum

Bending moment is maximum

40. A cantilever beam of length moment of inertia I and Young modulus E carries a concentrated load W at the middle of its length. The slope of cantilever at the free end is:

(WL A 2)/2EI

(WL A 2)/4EI

(WL A 2)/8EI

(WL A 2)/16EI

41. In a cantilever beam, if the length is doubled while keeping the cross section and concentrated load. acting at the free end is same, the deflection at the free end will increase by

2.66 times

3 times

6 times

8 times

42. The shear force diagram for the given simply supported beam is

<img src='./qimages/3399-42.jpg'>

43. The strength of a hollow shaft for the same length, material and weight is solid shaft.

Less than

More than

Equal to

None of these

44. For a linearly elastic, isometric and homogeneous material, the number of elastic constants required to relate stress and strain are:

Four

Two'

Three

Six.

45. Slenderness ratio for any column is

Total length of the column/ Average area of cross-section ofthe column

. Height/weight of the column

Effective length of the column/ modulus of elasticity

Effective length of the column/ least radius of gyration
46. Among the following characteristics, one is NOT the charaderistic of austenitic stainless steel:

Toughness

Corrosion resistance

Birttleness

Resilience

47. Corrosion resistance of stainless steel is due to

Chromium

Carbon

Vanadium

Copper

48. Work hardening of a steel component reduces:

Malleability

Hardness

Ductility

Toughness

49. Galvanizing is done with a thin layer of:

Zinc

Copper

Lead

Silver


50. Bronze used for church bells contain:

No copper

4 to of tin

1to of tin

15 to 25% of tin

51. For removing thermally induced stresses in glasses, one of the following processes will be used:

Annealing

Tempering

Hardening

Cold working

52. Carbon-carbon composites are. extensively used at

A very low temperature applications

Room temperatures

Temperatures around 30000 C

Around 300°C

53. plane of a cube is

Vertical

Horizontal

Inclined to HP

Inclined to both HP and VP

54. The ability of a metal to withstand elongation or bending is'known as

Ductility

Malleability

Stiffness

Brittleness

55. Addition of Magnesium to cast iron increases its:

Hardness

Ductility

Corrosion resistance

Creep strength .

56. Which of the following has least percentage of carbon

Malleable cast iron

Pig iron

Stainless steel

Wrought iron,

57. Cementite contains C to the tune of

0.6%



3.6%

6.6%

58. The atomic bond found in diamond is:

Ionic

Covalent

Metallic bond

None of these

59. White metal is an alloy of:

Lead +Tin

Lead Bismuth

Lead Zinc

Lead +Aluminum

60. Which of the following generally made of High carbon steel?

Hammers

Angle iron

Solid drawn tubes

Boiler plates

61. Connecting rod is generally manufactured by:

Casting

Drop forging

Machining

Upset forging

62. Honing opertion is used for high finish:

For a plane surface

Inside a cylindrical surface .

Outside cylindrical surface

Not a surface finish operation

63. Jigs are not used in one of the following:

Location

Clamping of the component

Safety

None of these

64. Discontinuous chips occur in case of: .

Ductile materials

Plastics

Composites

Brittle materials

65. .For proper cutting, cutting materials does not require

Higher hardness

Hot hardness

High wear resistance

High friction

66. Green sand contains:

15-24% of clay

50% of clay

of clay

No clay

67. Hot tears results in castings due to

Too much shrinkage of molten metal

High content of sulfur in molten metal

Less moisture in mould

Both and

68. Which of the following materials requires the largest shrinkage allowance, while making a pattern for casting?

Cast iron

Brass

Aluminum

Plain carbon steel

69. Coal dust. is added to moulding sounds for improving of the casing:

Surface finish

Collapsibility

Hot strength

Dry strength

70. In submerged arc welding, an arc is produced between:

Carbon electrode and the work piece

Metal electrode and the work piece

Bare metal electrode and the work piece

Two tungsten electrodes and the work

71. When the tool moves parallel to the lathe axis, it is called:

Cross feed

Sellars' taper

Chapman's taper

Brown and Sharpe taper

72. In orders to grind soft material:

Fine grained grinding wheel is used

Medium grained grinding wheel' is used

Coarse grained grinding-wheel is used

None of-these

73. A mandrel is used to hold:

An eccentric work

A heavy work

A thin work

None of these

74. The oxy-acetylene gas used in gas welding produces a flame temperature of:

18000 C

21000 C

24000 C

32000 C

75. Match the following manufacturing processes with the manufactured products:

Investment Turbine rotors casting

Die casting Turbine blades

Centrifuged Connecting casting rods

Drop forging GI pipes

Extrusion CI Pipes

Shell moulding Carburettor body







.

76. Assignable variables in statistical quality control results in

Proper sequencing of operations

Improper operation of the machine

Proper instruments used for inspection

None of these

77. One of the groups is not part of quality circle:

Leaders

Management

Facilitators

Bankers

78. One of the following is a drawback in hydraulic drives

Drive is smooth

Effect of temperature on oil viscosity

Self-lubricating system

Faster and reverse without' shock·

79. WhichoUhe following statements is correct

When slack of an activity is zero, it falls only on critical path

CPM technique is useful to minimise the direct and indirect expenses

Critical path of a network represents the minimum time. required for completion of project

All of these

80. Product layClutis best suited when:

One type of product is produced

Product is standardized

Product is· manufactured in large quantities

All of these

81. The chart that gives an estimate about the amount of materials handled between various work stations is known as

Flow chart

Process chart

Travel chart

Operation chart

82. Purpose of Scheduling is to:

Prescribe the sequence of operations to be followed

Determine the programme for the operations

Regulate the progress of job through various processes

All of these

83. Acceptance sampling is used in

Job Production

Batch Production

Mass Production

All of these

84. Gantt chart is used for:

Inventory Control

Material Handling

Production Schedule

Machine Repair Schedule

85. Job evaluation is the method of 'determining the:

Relative values of a job

Worker's performance on job

Value of overall production

Worth of the machine.

86. The aim of value engineering is to:

Find the depreciation value of a machine

Determine the selling price of a product

Minimise the cost without change in quality of the product

All of these

87. Simplex method is used for:

Value Analysis

NetworkAnalysis

Queuing Theory

Linear Programming

88. The type of material handling equipment used for handling . materials during manufacture of cement is:

Bucket conveyor

Belt conveyor

Fork lift

Overhead crane
89. Direct Expenses include:

Factory Expenses

Selling Expenses

Administrative Expenses

None of these

90. Acritical activity has:

Maximum slack

Zero slack

Minimum slack

Average slack