# FOREMAN(SERVICE WORKSHOP)-SIDCO SOLVED PAPER 2015

FOREMAN(SERVICE WORKSHOP)-SIDCO
EXAM DATE:23-12-2015

A.Banki turbine
B.Pelton turbine
C.Kapian turbine*
D.Francis turbine
Ans:C

2.Newton’s law of viscosity depends upon the:
A.Shear stress and rate of strain*
B.Shear stress,pressure and velocity
C.Stress and strain in a fluid
D.Viscosity and shear stress
Ans:A
3.An oil of specific gravity 0.95 has kinematic viscosity of 0.28 Stokes at 380C.What will be its viscosity in Ns/m2?
A.0.0252
B.0.0311
C.0.2520
D.0.0266*
Ans:D
4.From the point of lower specific energy consumption,which of the following compressor are suitable for part load operation?
A.Centrifugal compressors
B.Single stage screw  compressor
C.Two stage reciprocating  compressor*
D.Two stage screw compressor
Ans:C
5.Which of the following processes does not involve a transfer of material?
A.Convection
B.Vaporization
D.Evaporation
Ans:C
6.For a given heat flow and for the same thickness,the temperature drop access the material will be maximum  for:
A.Steel
B.Copper
C.Refractory brick*
D.Glass –wool
Ans:C
7.Heat is conducted  through a 10 cm thick wall at the rate of 30 W/m2 when the temperature difference across the wall is 100C.What is the thermal conductivity of the wall?
A.0.03 W/mk
B.0.3 W/mk*
C.3.0 W /mk
D.30.0 W/mk
Ans:B
8.The ratio of energy transferred by convection to that by conduction is called:
A.Biot number
B.Nusselt number*
C.Stanton number
D.Peclet number
Ans:B
9.When all the conditions are identical in the case of flow through pipes with heat transfer, the velocity profiles will be identical for:
A.Liquid heating and liquid cooling*
B.Gas heating and gas cooling
C.Liquid heating and gas cooling
D.Heating and cooling  of any fluid
Ans:A
10.The silver coating on the glass surface of a Thermos bottle reduces energy that is it transferred:
A.Conduction
B.Convection
D.Friction
Ans:C
11.The steady state conditions in diffusion are governed by:
A.Fick’s second law
B.Fick’s first law*
C.Both (A)and (B)
D.Maxwell-Boltzmann’s law
Ans:B
12.Toughness of steel increased by adding:
A.Nickel*
B.Chromium
C.Sulphur
D.Tungsten
Ans:A
13.Material used for machine tool bed is :
A.High carbon steel
B.mild steel
C.alloy steel
D.East iron*
Ans:D
14.The eutectoid mixture of steel is:
A.A mixture of ferrite and cementite*
B.A mixture of ferrite and austenite
C.A mixture of austenite and cementite
D.Called pearlite
Ans:A
15.Hot rolling of mild steel is carried out:
A.At recrystallisation temperature
B.between 1000C to 1500 C
C.Below recrystallisation temperature
D.Above recrystallisation temperature*
Ans:D
16.Piston rings for engines are made of:
A.Cast iron*
B.Copper
C.Aluminium
D.Mild steel
Ans:A
17.Aluminium is not good for die casting because:
A.It is light and strong
B.It tends to react chemically with the die surface*
C.it takes longer time to cool
D.Its melting point is high and it expands on solidification
Ans:B
18.Which of the following processes is used to harden the steel?
A.Normalizing
B.Annealing
C.Carburizing
D.Quenching*
Ans:D
19.Which of the following is always true for an isothermal process of an ideal gas?
A.The pressure does not change
B.The internal energy does not change*
C.The volume does not change
D.No heat flows into or out of the system
Ans:B
20.A heat engine takes in 200 Joule of thermal energy and performs 50 Joule of work in each cycle.What is its efficiency?
A.12%
B.20%
C.25%*
D.80%
Ans:C
21.If a chemical reaction has a positive change in entropy,then:
A.The disorder of the system increases*
B.The reaction is exothermic
C.Heat goes from  the system into the surroundings
D.The Gibbs free energy is negative
Ans:A
22.Joule-Thomson coefficient is the slope of:
A.Constant enthalpy lines on T-s diagram
B.Constant enthalpy lines on T-p diagram
C.Inversion curve on T-s diagram
D.Inversion curve on T-p diagram*
Ans:D
23.Pressure reaches a value of absolute  zero:
A.At a temperature of -273K
B.Under vaccum condition
C.At the earth’s centre
D.When molecular momentum of system becomes zero*
Ans:D
24.The mathematical technique for finding the best use of limited resources in an optimum manner is known as:
A.Operation research
B.Linear programming*
C.Network analysis
D.Queuing theory
Ans:B
25.The first method invented for planning project was”
A.Bar Chart*
B.Milestone chart
C.Critical Path Method(CPM)
D.Programme Evaluation Review Technique(PERT)
Ans:A
26.Input output analysis is processed through:
A.Time and motion study
B.Value analysis
C.Transaction matrix  *
D.Product analysis
Ans:C
27.Positive slack on a PERT indicates that project is:
A.Behind the schedule
C.As per schedule
D.On critical path
Ans:B
28.Queuing theory is associated with:
A.Inspection time
B.Inventory
C.Production time
D.Waiting time*
Ans:D
29.The pin knuckle joint is subjected to:
A.Tosional shear stress
B.Double shear stress*
C.Axial compressive stress
D.Axial tensile stress
Ans:B
30.Thermal stresses are caused by due to:
A.Variation in temperature*
B.Specific heat
C.High temperature
D.Latent heat
Ans:A
31.When the diameter of the shaft is doubled,its torque transmitting capacity will be increased by:
A.16 times
B.2 times
C.4 times
D.8 times*
Ans:D
32.If the Poisson’s ratio is 0.25,then the ratio of shear modulus to the elastic modulus is:
A.0.25
B.0.4*
C.1.25
D.0.5
Ans:B
33.The poison’s ratio of carbon steel is:
A.0.41
B.0.21
C.0.29*
D.0.75
Ans:C
34.The process of addition of moisture to air at constant dry bulb temperature is:
A.Air conditioning
B.Humidification*
C.Sensible heating
D.Dehydration
Ans:B
35.Boiling temperature of Freon -22 is:
A.-33.330C
B.-78.50C
C.-29.80C
D.-40.70C*
Ans:D
36.In a psychometric process,the sensible heat added is 40 kJ.sec and latent heat added is 30 kJ/sec.The sensible heat factor for the process will be:
A.0.3
B.0.67
C.0.6
D.0.57*
Ans:D
37.The highest temperature in vapour compression cycle occurs at:
B.Expansion valve
C.Compressor discharge*
D.Condenser discharge
Ans:C
38.Greenhouse effect refers to increase in:
A.Global temperature*
B.Carbon monoxide
C.Atmospheric pressure
D.Greenery
Ans:A
39.At the critical point of steam:
A.Boiling point  is 00C
B.Enthalpy of evaporation is zero*
C.Sensible heat is zero
D.Total enthalpy is zero
Ans:B
40.Concentration of solids  in boiler drum is controlled by:
A.Reducing dosage of chemicals
B.Blowdown*
C.Steam venting
D.Deaeration
Ans:B
41.What type of steam is generally used for power generation?
A.High pressure steam with super heat*
B.Dry saturated low pressure steam
C.Dry saturated  with very high pressure
D.Wet steam  with very high pressure
Ans:A
42.Profile of the gear tooth can be checked by:
A.Optical pyrometer
B.Sine bar
C.Bench micrometer
D.Optical projector*
Ans:D
43.Aut-collimator is used for measurement of:
A.Small angular differences*
B.Flatness
C.Concavity
D.Roughness of the surface
Ans:A
44.Which of the following is the most important  characterisitic of a measuring instrument?
A.Precision
B.Repeatability*
C.Sensitivity
D.Accuracy
Ans:B
45.For a strain gauge, high gauge factor results in:
A.Zero drift
B.Linear response
C.High sensitivity*
D.Low hysteresis
Ans:C
46.The most preferred process for casting gas turbine blades is:
A.Die moulding
B.Shell moulding
C.Investment moulding*
D.Sand casting
Ans:C
47.By which one of the following methods gray cast iron is usually welded?
A.TIG welding
B.MIG welding
C.Gas welding*
D.Arc welding
Ans:C
48.Submerged are welding takes place:
A.Under water
B.In a cloud of gas
C.Between work surfaces
D.Under a blanket of granular flux*
Ans:D
49.Silicon is added to electrode coating as:
A.A slipping agent
B.A slag former
C.A de-oxidant*
D.A colouring agent
Ans:C
50.The preheating of parts to be welded and slow cooling of the welded structure will reduce:
A.Cracking and incomplete fusion
B.Cracking and residual stress
C.Residual stress and incomplete penetration*
D.Cracking and underfill
Ans:C
A.Casting process
B.Welding process
C.Machining from rolled stock
D.Drop forging process*
Ans:D
52.An imaginary circle which by pure rolling action,gives the same motion as the actual gear and is called:
B.Pitch circle*
C.Dedendum circle
D.Base circle
Ans:B
53.An engine produces  10 kW brake power by working with a brake thermal efficiency of 30%.IF the calorific value of fuel used is 40.000 kJ/kg,then what is mass fuel consumption?
A.0.5 kg/hr
B.3 kg/hr*
C.0.3 kg/hr
D.1 Kg/hr
Ans:B
54.Reference fuels for knock rating of SI engine fuels would include:
A.Iso-octane and a –methyl naphthalene
B.Normal octane and aniline
C.Iso-octane and n-hexane
D.N-heptane and iso-octane*
Ans:D
55.Morse test is used to find out:
A.Indicated horse power for multicylinder engines*
B.Shaft horse power
C.Mean effective pressure
D.Temperature of exhaust gas
Ans:A
56.By sypercharging the petrol engine,the chance of detonation:
A.Decreases
B.Increases*
C.Remains constant
D.None of the above
Ans:B
57.If the initial tension in the belt is increased,the power transmission capacity:
A.Is increased*
B.Is decreased
C.Remains same
D.Is independent to initial tension
Ans:A
Ans:B
59.The thickness of thin cylinder is determined on the basis of:
B.Longitudinal stress
C.Circumferential stress*
D.Principal shear stress
Ans:C
60.While designing a flange coupling care is taken so that:
A.Shaft is the weakest component
B.Bolt is the weakest component
C. Flange is the weakest component
D.Key is the weakest component*
Ans:D
61.Process of removing moisture content of timber is called:
A.Drying
B.Seasoning*
C.Treating
D.Drilling
Ans:B
62.Size of the lathe is specified by:
A.Height of the centre above the lathe bed
B.Swing diameter over the bed
C.Swing diameter over the carriage
D.All the above*
Ans:D
63.The operation to prevent leakage through the riveted joint:
A.Welding
B.Caulking and fullering*
C.Hammering
D.Bending
Ans:B
64.---------------is hinged to the tool head of a shaper.
B.Cross rail
C.Column
D.Clapper box*
Ans:D
65.Maximum bending moment due to moving load on a simple supported beam occur:
B.At mid span
C.At support
D.Any where on the beam
Ans:A
66.Value of gamma for air
A.4.1
B.1.4*
C.1.44
D.4.11
Ans:B
67.Manometer is used to measure:
A.Velocity
B.Discharge
C.Pressure*
D.Temperature
Ans:C
68.The size of cam depends upon the size of its:
A.Base circle*
B.Prime circle
C.Trace point
D.Pitch point
Ans:A
69.Co-efficient of discharge Cd=
A.Cc x Cv*
B.Cv/Cc
C.Cv+Cc
D.Cv-Cc
Ans:A
70.The most efficient cycle is:
A.Diesel
B.Carnot*
C.Joules
D.Petrol
Ans:B
71.50 Mega Pascal:
A.50 N/mm*
B.50 N/m2
C.500 N/mm2
D.50 N/cm2
Ans:A
72.Specific gravity of Mercury is:
A.16.3
B.12.9
C.1.36
D.13.6*
Ans:D
73.The process of generating a gear:
A.Peripheral milling
B.Roaming
C.Hobbing*
D.Angular milling
Ans:C
74.The operation of cutting of flat sheet to desired shape:
A.Pasrting
B.Blanking*
C.Slitting
D.Lancing
Ans:B
75.In which Turbine the rummer vanes are adjustable:
A.Francis
B.Pelton wheel
C.Caplan*
D.Deriaz turbine
Ans:C
76.The operation of maching several surfaces of a work piece simultaneously be feeding the table against a numbers of cutters having same or different diameters mounted on the arbour of the machine:
A.Mount milling
B.Gang milling*
C.Group milling
D.Form milling
Ans:B
77.Ability of material to deform under tensile load is called:
A.Malleability
B.Ductility*
C.Brittleness
D.Toughness
Ans:B
78.A device which holds and locates a work piece for a manufacturing operation:
A.Fixture*
B.Jug
C.V-block
D.G-Clamp
Ans:A
79.Venturimeter is used to measure the ------------of the liquid flowing in a pipe.
A.Velocity
B.Pressure
C.Colour
D.Discharge*
Ans:D
80.------------is the turning effect of force.
A.Rotory motion
B.Acceleration
C.Torque*
D.Velocity
Ans:C
81.The first Travelogue in  Malayalam language was written by:
A.Paremakkil Toma Kattanar*
B.Arnos Patiri
C.Fr.Clement
D.Anjelo Francis
Ans:A
82.The first Signatory to the Malayali Memorial was:
A.K.P.Sankara Menon*
B.G.P.Pillai
C.Dr.Palpu
D.Kandathil Varghese Mappila
Ans:A
83.Karmavipakam is the autobiography of:
B.M.R.B
D.Premji
Ans:C
84.Arya Pallam is related with which of the following :
A.Salt Satyagraha
B.Guruvayur Satyagraha
C.Vaikom Satyagraha
D.Paliyam Satyagraha*
Ans:D
85.Which of the following is characterized as the most essential of all fundamental rights?
A.The Right to Equaltiy
B.The Right to Freedom*
C.The Right against Exploitation
D.The Right to Constitutional remedies
Ans:B
86.Who among the following belonged to the Serampore Missionaries?
B.Ringeltaube
C.C.M.Agur
D.William Carey*
Ans:D
87.LARR is a Central Act related to:
A.Labour
B.Land acquisition*
C.Women uplift
D.Space Research
Ans:B
88.Sujanandini Was started by:
A.C.V.Kunhiraman
B.Paravur Kesavan Asan*
D.C.Krishnan
Ans:B
B.Vaikunda Swamikal
C.Brahmananda Sivayogi*
D.Chattampi Swamikal
Ans:C
90.The first Malayalam Newspaper banned by the Travancore Government?
C.Jnanikshepam
D.Malayali
Ans:A
91.The first President of Nair Service Society was:
B.G.P.PILLAI
C.K.Kelappan*
D.K.P.Kesavamenon
Ans:C
92.Mahatma Gandhi met Sreenanarayana  Guru at Varkala on:
A.1925 March 12*
B.1925 April 12
C.1928 January 13
D.1928 February 13
Ans:A
93.Govt.Brennen College was started by which of the following missionaries?
A.Basel Mission*
B.C.M.S.Missionaries
C.L.M.S.Missionaries
D.Serampore Missionaries
Ans:A
94.Chaturyantam is a work written by:
A.Fr.Anjelo Francis
B.Fr.Clement
C.Fr.Kiriyatti Ousep
D.Amos Patiri*
Ans:D
95.The Tatwaprakasika Asram was started by
A.Sahodaran Ayyappan
B.Poikayil Kumara Guru
D.Chattampi Swamikal
Ans:C
96.NITI is:
A.National Industrial Training Institute
B.National Institution for Transforming India*
C.National Information Technology Institute
D.National Information Training Institute
Ans:B
97.Malabar Economic Union was founded by:
A.C.Kesavan
B.C.Krishnan
C.Dr.P.Palpu*
D.C.V.Kunhiraman
Ans:C
98.Badhiravilapam is a poem written by:
A.Ulloor  S.Parameswara Iyer
B.Kumaran Asan
C.Vallathol Narayana Menon*
D.P.K.Narayana Pillai
Ans:C
99.The martyr of the Paliyam Satyagraha?
A.A.K.Gopalan
B.Kunhapi
C.Govinda Panikkar
D.A.G.Velayudhan*
Ans:D
100.The dance form Ramanattam was invented by:
A.Kottayam Thampuran
B.Kottarakara Thampuran*
D.Zamorin of Calicut

Ans:B
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