1) In compression, a prism of brittle material will break

A) By forming a bulge by shearing along oblique plane A) In direction perpendicular to application of load B) By crushing into thousands of pieces C) None of the above

Answer is : By forming a bulge by shearing along oblique plane

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3) The spark ignition engines are governed by

A) Hit and miss governing A) Qualitative governing B) Quantative governing C) Combination of (b) and (C)

Answer is : Quantative governing

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4) The simpley supported beam 'A' of length l carries a central load such that the total load on the beam is W. The ratio of maximum deflections between beams A and B is

A) (5/8) A) (8/5) B) (5/4) C) (4/5)

Answer is : (8/5)

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5) Intensive property of a system is one whose value

A) Depends on the mass of the system, like volume A) Does not depend on the mass of the system, like temperature, pressure, etc. B) It not dependent on the path followed but on the state C) Is dependent on the path followed and not on the state

Answer is : Does not depend on the mass of the system, like temperature, pressure, etc.

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6) The moment of inertia of a solid cone of mass m and base radius r about its vertical axis is

A) 3mr2/5 A) 3mr2/10 B) 2mr2/5 C) 4mr2/5

Answer is : 3mr2/10

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7) According to Darcy's formula, the loss of head due to friction in the pipe is (where f = Darcy's coefficient, l= Length of pipe, v= Velocity of liquid in pipe, and d=Diameter of pipe)

A) flv2/2gd A) flv2/gd B) 3flv2/2gd C) 4flv2/2gd

Answer is : 4flv2/2gd

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8) Which of the following is used to control the speed variations of the engine caused by the fluctuations of the engine turning moment?

A) D-slide valve A) Governor B) Flywheel C) Meyer's expansion valve

Answer is : Flywheel

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9) A bolt is designed on the basis of _______ with large factor of safety.

A) Direct tensile stress A) Direct compressive stress B) Direct bending stress C) Direct shear stress

Answer is : Direct tensile stress

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10) The operation of cutting of a flat sheet to the desired shape is called

A) Shearing A) Piercing B) Punching C) Blanking

Answer is : Blanking

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11) Gantt chart is used for

A) Inventory control A) Material handling B) Production schedule C) Machine repair schedules

Answer is : Production schedule

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12) In a 50% reaction tu rbine stage, tangential component of absolute velocity at rotor inlet is 537 m/s and the blade velocity is 454 m/s. The power output in kW of steam will be

A) 260 kW A) 282 kW B) 296 kW C) 302 kW

Answer is : 282 kW

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13) The kinematic viscosity is the

A) Ratio of absolute viscosity to the density of the liquid A) Ratio of density of the liquid to the absolu te viscosity B) Product of absolute viscosity and density of the liquid C) Product of absolu te viscosity and mass of the liquid

Answer is : Ratio of absolute viscosity to the density of the liquid

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14) The size of cam depends upon

A) Base circle A) Pitch circle B) Prime circle C) Pitch curve

Answer is : Base circle

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15) In a Hartnell governor, if a spring of greater stiffness is used, then the governor will be

A) Less sensitive A) More sensitive B) Unaffected of sensitivity C) Isochronous

Answer is : Less sensitive

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16) Temperature of steam at around 540? C can be measured by

A) Thermometer A) Radiation pyrometer B) Thermistor C) Thermocouple

Answer is : Thermocouple

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17) One kg of carbon monoxide requires _____ kg of oxygen to produce 11/7 kg of carbon dioxide gas.

A) (9/7) A) (4/7) B) (11/4) C) All

Answer is : (4/7)

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18) Which of the following is an open pair?

A) Ball and socket joint A) Journal bearing B) Lead screw and nut C) Cam and follower

Answer is : Ball and socket joint

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19) A circular shaft can transmit a torque of 5 kN-m. If the torque is reduced to 4 kN-m, then the maximum valu e of bending moment that can be applied to the shaft is

A) 1 kN-m A) 2 kN-m B) 3 kN-m C) 4 kN-m

Answer is : 3 kN-m

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20) Break even analysis is a

A) Short term analysis A) Long term analysis B) Average of short and long term analysis C) Any one of these

Answer is : Short term analysis

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22) In a reaction turbine, when steam flows through the moving blades.

A) Pressure increases while velocity decreases A) Pressure decreases while velocity increases B) Pressure and velocity both decreases C) Pressure and velocity both increases

Answer is : Pressure and velocity both decreases

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23) The routing function in a production system design is concerned with

A) Manpower u tilisation A) Quality assurance of the product B) Machine Utilisation C) Optimising material flow through the plant

Answer is : Machine Utilisation

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24) The minimum number of teeth on the pinion which will mesh with any gear without interface for 20? full depth involute teeth will be

A) 12 A) 14 B) 18 C) 24

Answer is : 18

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25) A body is subjected to a tensile stress of 1200 Mpa on one plane and another tensile stress of 600 Mpa on a plane at right angles to the former. It is also subjected to a shear stress of 400 Mpa on the same planes. The maximum normal stress will be

A) 400 Mpa A) 500 Mpa B) 900 Mpa C) 1400 Mpa

Answer is : 1400 Mpa

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26) The ability of a material to resist softening at high temperature is known as

A) Creep A) Hot tempering B) Hot hardness C) Fatigue

Answer is : Creep

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28) In S.I units, the valu e of the universal gas constant is

A) 8.314 J/kg mole-K A) 83.14 J/kgmole-K B) 831.4 J/kgmole-K C) 8314 J/kgmole-K

Answer is : 8.314 J/kg mole-K

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29) The force applied on a body of mass 100 kg to produce an acceleration of 5 m/s2 , is

A) 20 N A) 100 N B) 500 N C) None of these

Answer is : 500 N

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30) The flow of water through the hole in the bottom of a wash basin is an example of

A) Steady flow A) Uniform flow B) Free vortex C) Forced vortex

Answer is : Free vortex

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31) The stress which vary from a minimum valu e to a maximum value of the same nature (i.e. tensile or compressive) is called

A) Repeated stress A) Yield stress B) Fluctuating Stress C) Alternating stress

Answer is : Fluctuating Stress

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32) Carburising flame is used to weld

A) Steel, cast iron, copper, aluminium etc A) Brass and bronze B) Hard surfacing materials such as stellite C) All of these

Answer is : Hard surfacing materials such as stellite

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33) Gear finishing operation is called

A) Shaping A) Milling B) Hobbing C) Burnishing

Answer is : Burnishing

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34) In a coil ignition system of petrol engines, a condenser is connected across the contact breaker in order to

A) Prevent sparking across the gap between the points A) Cause more rapid break of the primary current, giving a higher voltage in the secondary circuit B) Both (a) and (b) C) None of the above

Answer is : Both (a) and (b)

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35) The pressure of the liquid flowing through the divergent portion of a venturimeter

A) Remains constant A) Increases B) Decreases C) Depends upon mass of liquid

Answer is : Decreases

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36) In order to remove internal stresses produced by hardening the steel, the process usually adopted is

A) Tempering A) Annealing B) Normalising C) Spheroidising

Answer is : Tempering

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37) The heat flow from a cold body to a hot body with the aid of an external source. This statement is given by

A) Kelvin A) Joule B) Clausis C) Gay-Lussac

Answer is : Clausis

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38) A two high rolling mill consists of two rolls which rotate

A) At the same speed and in the same direction A) At the same speed but in opposite direction B) At different speeds and in the same direction C) At different speeds in the opposite direction

Answer is : At the same speed but in opposite direction

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39) When the Mach number is less than unity, the flow is called

A) Sub-sonic flow A) Sonic flow B) Super-sonic flow C) Hyper-sonic flow

Answer is : Sub-sonic flow

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40) A cycle consisting of two constant pressure and two isentropic process is known asa

A) Carnot cycle A) Stirling cycle B) Otto cycle C) None of these

Answer is : None of these

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41) Mild steel belongs to the following category

A) Low carbon steel A) Medium carbon steel B) High carbon steel C) Alloy steel

Answer is : Low carbon steel

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42) The law of motion involved in the recoil of gun is

A) Newton's first law of motion A) Newton's second law of motion B) Newton's third law of motion C) None of these

Answer is : Newton's third law of motion

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43) The acceleration of a particle at any instant has two components i.e. radial component and tangential component. These two components will be

A) Parallel to each other A) Perpendicular to each other B) Inclined at 45 ? C) Opposite to each other

Answer is : Perpendicular to each other

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44) For the same maximum pressure and temperature

A) Otto cycle is more efficient than Diesel cycle A) Diesel cycle is more efficient than Otto cycle B) Dual cycle is more efficient than Otto and Diesel cycles C) Dual cycle is less efficient than Otto and diesel cycles

Answer is : Diesel cycle is more efficient than Otto cycle

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45) The operation of forcing additional air under pressure into the engine cylinder is known as

A) Supercharging A) Carburation B) Turbulence C) Delay period

Answer is : Supercharging

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46) Isotropic materials are those which have the same

A) Elastic properties in all directions A) Stresses induced in all directions B) Thermal properties in all directions C) Electric and magnetic properties in all directions

Answer is : Elastic properties in all directions

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47) A flow in which each liquid particle has a definite path, and the paths of individual particles do not cross each other, is called

A) Steady flow A) Uniform flow B) Streamline flow C) Turbulent flow

Answer is : Streamline flow

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48) When a machine member is subjected to torsion, the torsional shear stress set up in the member is

A) Zero at both the centroidal axis and outer surface of the member A) Maximum at both the centroidal axis and outer surface of the member B) Zero at the centroidal axis and maximum ath the outer surface of the member C) maximum at the centroidal axis and zero at the outer surface of the member

Answer is : Zero at the centroidal axis and maximum ath the outer surface of the member

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49) In a single point tool, the angle between the surface of the flank immediately below the point and a line drawn from the point perpendicular to the base, is known as

A) Side relief angle A) End relief angle B) Back rake angle C) Side rake angle

Answer is : End relief angle

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50) F. W. Taylor introduced a system of organisation known as

A) Line organisation A) Functional organisation B) Line and staff organisation C) Line, staff and functional organisation

Answer is : Functional organisation

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51) Which of the following gas has the highest calorific value?

A) Coal gas A) Producer gas B) Mond gas C) Blast furnace gas

Answer is : Coal gas

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52) Delta iron occurs at temperature of

A) Room temperature A) Above melting point B) Between 1400? C and 1539? C C) Between 910? C and 1400? C

Answer is : Between 1400? C and 1539? C

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53) Stirling and Ericsson cycles are

A) Reversible cycles A) Irreversible cycles B) Semi-reversible cycles C) Quasi-static cycles

Answer is : Reversible cycles

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54) Which of the following fuel has little tendency towards detonation ?

A) Benzene A) Iso-octane B) Normal heptane C) Alcohol

Answer is : Iso-octane

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55) A rotary internal combustion engine has _____ cylinders.

A) Four A) Five B) Six C) Seven

Answer is : Five

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56) Select the correct statement as per Charle's law

A) p.v = constant, if T is kept constant A) v/T = constant, if p is kept constant B) p/t = constant, if v is kept constant C) T/p = constant, if v is kept constant

Answer is : v/T = constant, if p is kept constant

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57) The entropy may be expressed as a function of

A) Pressure and temperature A) Temperature and volume B) Heat and work C) All of these

Answer is : All of these

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58) The value of bulk modulus of a fluid is required to determine

A) Reynold's number A) Froude's number B) Mach number C) Euler's number

Answer is : Mach number

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59) Heat transfer by radiation mainly depends on

A) Its temperature A) Nature of the body B) Kind and extent of its surface C) All of the above

Answer is : All of the above

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60) A process of heating crude oil to a high temperature under a very high pressure to increase the yield of lighter distillates, is known as

A) Cracking A) Carbonisation B) Fractional distillation C) Full distillation

Answer is : Cracking

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61) In a vibrating system, if the actual damping coefficient is 40 N/m/s and critical damping coefficient is 420 N/m/s, then logarithmic decreament is equal to

A) 0.2 A) 0.4 B) 0.6 C) 0.8

Answer is : 0.6

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62) Fixtures are used

A) For holding and guiding the tool in drilling, reaming or tapping operations. A) For holding the work in milling, grinding, planing or turning operations. B) To check the accuracy of work piece. C) None of the above

Answer is : For holding the work in milling, grinding, planing or turning operations.

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63) The top, front, and bottom views align in this manner

A) Horizontally A) Vertically B) According to the planar views C) Parallel to the frontal plane

Answer is : Vertically

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64) De-Laval turbines are mostly used

A) Where low speeds are required A) For small power purposes and low speeds B) For large power purposes C) For small purposes and high speeds

Answer is : For small purposes and high speeds

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65) The accuracy of micrometers, callipers, dial indicators can be checked by a

A) Feeler gauge A) Slip gauge B) Ring gauge C) Plug gauge

Answer is : Slip gauge

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66) Which one of the following can completely balance several masses revolving in different planes on a shaft?

A) A single mass in different planes A) Two masses in any two planes B) A single mass in one of the planes of the revolving masses C) Two equal masses in any two planes

Answer is : Two masses in any two planes

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67) The behaviour of gases can be fully determined by

A) 1 law A) 2 laws B) 3 laws C) 4 laws

Answer is : 3 laws

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68) Thermal diffusivity is

A) A dimensionless parameter A) Function of temperature B) Used as mathematical model C) A physical property of the material

Answer is : A physical property of the material

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69) The helix angle for single helical gears ranges from

A) 10? to 15? A) 15? to 25? B) 20? to 35? C) 35? to 50?

Answer is : 15? to 25?

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70) In a single point turning operation with a cemented carbide and steel combination having a Taylor exponent of 0.25, if the cutting speed is halved, then tool life will become

A) Half A) Two times B) Eight times C) Sixteen times

Answer is : Sixteen times

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71) The flow through a nozzle is regarded as

A) Constant volume flow A) constant pressure flow B) Isothermal flow C) Isentropic flow

Answer is : Isentropic flow

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72) Factory of safety for fatigue loading is the ratio of

A) Elastic limit to the working stress A) Elastic limit to the yield point B) Endurance limit to the working stress C) Young's modulus to the ultimate tensile strength

Answer is : Endurance limit to the working stress

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73) A water tank contains 1.3 m deep water. The pressure exerted by the water per meter length of the tank is

A) 2.89 kN A) 8.29 kN B) 9.28 kN C) 28.9 kN

Answer is : 8.29 kN

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74) The stress induced in a body, when suddenly loaded, is _____ the stress induced when the same load is applied gradually

A) Equal to A) One-half B) 8.29 kN C) Four times

Answer is : 8.29 kN

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75) When two links are connected by a pin joint, their instantaneous centre lies

A) On their point of contact A) At the centre of curvature B) At the center of circle C) At the pin joint

Answer is : At the pin joint

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76) When the gas is cooled at constant pressure

A) Its temperature increases but volume decreases A) Its volume increases but temperature decreases B) Both temperature and volume increases C) Both temperature and volume decreases

Answer is : Both temperature and volume decreases

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77) A PERT network has three activities on critical path with mean time 3, 8 and 6 and standard deviations 1, 2 and 2 respectively. The probability that the project will be completed in 20 days is

A) 0.5 A) 0.66 B) 0.84 C) 0.95

Answer is : 0.84

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78) When the bearing is subjected to large fluctuations of load and heavy impacts, the bearing characteristics number should be _____ the bearing modulus

A) 5 times A) 10 times B) 15 times C) 20 times

Answer is : 15 times

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79) The transfer of heat by molecular collision is known as

A) Conduction A) Convection B) Radiation C) None of these

Answer is : Convection

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80) The slope on the road surface generally provided on the curves is known as

A) Angle of friction A) Angle of repose B) Angle of banking C) None of these

Answer is : Angle of banking

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81) The stress induced in a body will be shear stress, when it is subjected to

A) Longitudinal vibrations A) Transverse vibrations B) Torsional vibrations C) None of these

Answer is : Torsional vibrations

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82) Two closely coiled helical springs 'A' and 'B' are equal in all respects but the number of turns of spring 'A' is half that of spring 'B' The ratio of deflections in spring 'A' to spring 'B' is

A) (1/8) A) (1/4) B) (1/2) C) 2

Answer is : (1/2)

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83) When a body is placed over a liquid, it will float if

A) Gravitational force is equal to the upthrust of the liquid A) Gravitational force is less than the upthrust of the liquid B) Gravitational force is more that the upthrust of the liquid C) None of the above

Answer is : Gravitational force is less than the upthrust of the liquid

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84) The tool may fail due to

A) Cracking at the cutting edge due to thermal stresses A) Chipping of cutting edge B) Plastic deformation of the cutting edge C) All of these

Answer is : All of these

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85) Stichometric ratio is

A) Chemically correct air-fuel ratio by weight A) Chemically correct air-fuel ratio by volume B) Actual air-fuel ratio for maximum efficiency C) None of the above

Answer is : Chemically correct air-fuel ratio by volume

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86) The specific gravity of an oil whose specific weight is 7.85 kN/m3 , is

A) 0.8 A) 1 B) 1.2 C) 1.6

Answer is : 0.8

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87) The heating of a gas at constant pressure is governed by

A) Boyle's law A) Charle's law B) Gay-Lussac law C) Avogadro's law

Answer is : Charle's law

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88) Which of the following quantities is not the property of the system

A) Pressure A) Temperature and volume B) Specific volume C) Charle's law

Answer is : Charle's law

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89) The increase in hardness due to cold working, is called

A) Age-hardening A) Work-Hardening B) Induction hardening C) Flame hardening

Answer is : Work-Hardening

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90) The sleeve or muff coupling is designed as a

A) Dun cylinder A) Thick cylinder B) Solid shaft C) Hollow shaft

Answer is : Hollow shaft

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91) The resultant of two equal forces P making an angle ?, is given by

A) 2 P sin ?/2 A) 2 P cos ?/2 B) 2 P tan ?/2 C) 2 P cot ?/2

Answer is : 2 P cos ?/2

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92) The temperature at which the volume of a gas becomes zero is called

A) Absolute scale of temperature A) Absolute zero temperature B) Absolute temperature C) None of these

Answer is : Absolute zero temperature

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93) On weight basis, air contains following parts of oxygen

A) 21 A) 23 B) 25 C) 73

Answer is : 23

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94) In an isothermal process, the internal energy of gas molecules

A) Increases A) Decreases B) Remains constant C) May increase /decrease depending on the properties of gas

Answer is : Remains constant

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95) If Hg is the gross or total head and Hf is the head lost due to friction, then net or effective head (H) is given by

A) H = Hg / Hf A) H=Hg x Hf B) H=Hg + Hf C) H=Hg - Hf

Answer is : H=Hg - Hf

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96) The volumetric efficiency for reciprocating air compressors is about

A) 10 to 40 % A) 40 to 60 % B) 60 to 70 % C) 70 to 90 %

Answer is : 70 to 90 %

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97) Intercooling in gas turbines

A) Decreases net output but increases thermal efficiency A) Increases net output but decreases thermal efficiency B) Decreases net output and thermal efficiency both C) Increases net output and thermal efficiency both

Answer is : Increases net output and thermal efficiency both

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98) The diagram which shows the correct crank positions corresponding to the opening and closing of the valves, is known as

A) Indicator diagram A) Axial force diagram B) Valve timing diagram C) None of these

Answer is : Valve timing diagram

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99) In a glass tube type water indicator for a boiler, one end of the tube is connected to water space and the other end is connected to

A) Water space also A) Chimney B) Steam space C) Super heater

Answer is : Steam space

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100) In an impulse turbine, steam expands

A) Wholly in blades A) Wholly in nozzle B) Partly in the nozzle and partly in blades C) None of these