SENIOR MECHANIC - HARBOUR ENGINEERING DEPARTMENT.pdf (Size: 1.51 MB / Downloads: 0)

78/2014
Maximum: 100 marks
Time : 1 hour and 15 minutes

1.The concept of TQM nears to :
(A)No serap/rejected products 
(B)Total Quality of Man
(C ) Total Quality of Method
(D)Total Quality of Machine

2.In a Critical path, slack is equal to :
(A)Project time
(B)Minimum project time
(C ) Maximum project time
(D)Zero

3.Which of the following statements is true for the termBreak Even Point analysis?
(A)It calculates the profit at B. E. P.
(B)Net revenue at B.E.P is calculated for calculating profit %
(C ) It calculates the volume of output at which neither loss nor profit occurs
(D)It is used to forecast the net sales with 10% profit

4.Which of the following techniques in quality control helps to keep the number of defects or imperfections per unit of product?
(A)X chart
(B) C chart
(C )  R chart
(D) P chart

5.Which of the following terms is most appropriate to describe the basic elements of movements or fundamental hand motions of the work cycle?
(A) Work study
(B)Tool study
(C )  Therbligs
(D)Macroscopic motion study

6.Thermal power stations are located near ;
(A) Rivers/ oceans
(B)Collieries
(C )  Metro cities
(D)Wet, fertile land

7. Which of the following deals with the comfort of human body to get the maximum output'and minimum strain?
(A)Physiology
(B) Psychology’
(C )  Economics
(D) Ergonomics


8.In a plane turning operation, if L= Length to be turned (mm) ;Sr = feed (mm/rev); N = r.p.m of work piece; D= diameter of work (m); V= cutting speed (m/min), then the time for turning is equal to:
(A)L/(Sr x N) in seconds
(B)L/(Sr x N) in minutes
(C ) (LxD)/(SrxN) in seconds
(D)(LxD)/(S, xN) in minutes

9.The structure of Gamma Iron formed between 910°Cand 1400°C is:
(A) BCC
(B)FCC
(C ) HCP
(D)None of the above

10.Purest form of iron is:•
(A)Pig iron
(B)Cast iron  
(C ) Wrought iron
(D)Puddled iron

11.In which of the following welding techniques a separate electrode is used to maintain the electric arc which should not touch the work/ filler material?
(A)Manual metal arc welding
(B) Submerged arc welding
(C )  MIG
(D) TIG

12.In a vernier caliper, 50 divisions on the vernier scale is equal to 49 divisions of the main scale. Each division on the main scale is 0.5 mm. Then the least count in mm is:
(A)0.01
(B)0.10
(C ) 0.02
(D)0.20

13.Which of the following tool materials is the hardest, next to diamond?
(A)Tungsten carbide
(B)CBN (Cubic Boron Nitride)
(C ) Ceramics
(D)Titanium carbide

14.Which of the following is the most preferred bond type in a grinding wheel for grinding glass components?
(A)Rubber
(B)Vitrified
(C ) Silicate
(D)Shellac

15.In Flexible Manufacturing System ;
(A)Machines are flexible
(B)Cutting tools arc flexible
(C ) Machines as well as cutting tools arc flexible
(D)Work- machine schedule is flexible during production

16.Which of the following is true when the rake angle of a cutting edge increases?
(A)Tool strength reduces and chip flow resistance increases
(B)Tool strength increases and smooth chip flow
(C ) Tool strength reduces and chip flow resistance reduces
(D)Tool strength increases and chip flow resistance increases

17.Speed of air craft can be measured by 
(A) Tachometer 
(B) Pressure gauge
(C )  Pitot tube
(D) Ultrasonic flow meter

18: Which of the following senses the elastic deformation of a hollow tube with elliptical cross section and bent in the form of an arc during the pressure measurement ?
(A)Piezometer tube
(B)Bourdon’s tube pressure gauge
(C ) U-tube manometer
(D)Differential manometer

19.Unit of specific weight in S.I. system is :
(A) kg/litrc 
(B) kg/m3
(C )  kgwt/m3
(D) N/m3

20.Cavitation in centrifugal pump results in :
(A) Damage of impellor due to pitting 
(B) Highest possible efficiency
(C )  Increasing fluid temperature
(D) Increasing fluid pressure

21.Head loss in meters of fluid.column, due to fluid friction, during a flow through a pipe under pressure, can be found by:
(A)m rω2 {not go be printed ω- is Greek letter 'omega'}
(B)pgd {not go be printed p — is Greek letter 'rho'}
(C ) 1/2 mv2
(D)4fu2 /(2gd)

22.A multi stage centrifugal pump can be practically employed to suck water from a maximum depth of approximately:
(A) 8 m
(B)20 m
(C )  40 m
(D) 60 m

23.A centrifugal pump is operated through a V belt drive by a 3 phase induction motor. Pump efficiency is 50 %, transmission loss is 10 % and motor efficiency is 80 %. Electrical power needed to operate the pump when producing 3.6 kW hydraulic power output is :
(A)4.6 kW
(B)7.2 kW
(C ) 10 kW
(D)18 kW

24.Pressure inside the Pelton wheel turbine casingis
(A)less than atmospheric
(B)atmospheric
(C ) greater than atmospheric
(D)the penstock pressure

25.Maximum deflection of a cantilever beam with point load ‘P at free end is:
(A)(PL3)/(3E1) at fixed end
(B)(PIAVOEl) at free end
(C ) (PL4)/(8E1) at free end
(D)(PL4)/(32EI) at free end

26.Simple theory of elastic bending (with usual notations) is :
(A)M/I f/Y-E/R
(B)M/I= Y/f-E/R
(C ) I/M-Ylf - E/R
(D)I/M-f/Y-E^R

27.During bending of an clastic material, the neutral axis passes through
(A)Bottom most layer of section
(B)Top most layer of section
(C ) Centroid of the section
(D)None of the above

28.Area moment of inertia of a square cross section with side B is:
(A)(B)/$
(B)(B )/l2
(C ) (B')/s 
(D)(B4)/l2

29. Ratio of stress to strain is:
(A)% of strain
(B)% of stress
(C ) Poisson’s ratio
(D)Modulus of elasticity

30.Thread height (H) of ISO screw thread is related to its pitch (P) by 
(A) H =0.500 P .
(B)H-0.960P
(C ) H-0.866P.
(D) H=1.732 P

31.Which of the following operations will produce the lowest surface roughness? 
(A) Milling
(B) lapping
(C )  Grinding
(D) Reaming

32.In the Hole basis system which one of the following represents a press fit?
(A)H7p6
(B)H7 h7
(C )  H7f7 
(D) H7g6

33.Which of the following is true in the case of a diesel engine?
(A)Indicated thermal efficiency is always lower than the brake thermal efficiency
(B)Indicated thermal efficiency does not increase as brake power increases
(C ) Indicated thermal efficiency always decreases as output power increases
(D)Indicated thermal efficiency cannot be zero

34. Characteristic difference of Diesel Cycle from Auto Cycle is by :
(A) Isochoric heat addition
(B)Isobaric heat addition
(C )  Isothermal heat addition
(D)Isentropic heat addition

35.Source and Sink temperatures of a efficiency of Carnot Engine can be :Carnot Engineare 27°C and 927°C respectively.
(A) 29 %
(B)50%
(C ) 75 %
(D)1OO %

36.In the area of radiation heat transfer,white paper material is assumed to be a
(A) Black body
(B)White body
(C )  Grey body
(D)Green body

37.Unit of Overall Heat Transfer Coefficient is :•
(A) W/m2K
(B)W/mK
(C )  W/K
(D)W/m

38.One Ton of Refrigeration (1 TR) is :
(A) 50.4 kW thermal
(B)3.517 kW thermal
(C )  211 kW thermal
(D)3.876 kW thermal

39. Thermostatic Expansion valve operates on the :
(A)Temperature of refrigerant coming out of evaporator
(B)Pressure of refrigerant coming out of evaporator
(C ) Volume of refrigerant coming out of evaporator
(D)Degree of Superheat of refrigerant coming out of evaporator

40. Which of the following can produce a fog in atmosphere?
(A) Sensible cooling up to saturation
(B) Sensible heating
(C )  Mixing of air streams
(D) Dehumidification

41.If A=(1 3  2 4)find2A: 

42., 18in0 cos0( Evaluate . 1 : f- cos# sinq


43.Which of the following matrices is singular?

44.Find 'k if the system is consistent:
x+y+l=0, x + 2y + l=0, 2x + 3y + k-0 
(A) 2
(B)-2
(C )  4
(D)3

45.Find the inverse of the matrix (5 2 3 2 ) 

46.If nC12 = nC6 find ’n' :
(A) 18
(B)4
(C )  8
(D)20

47.Evaluate tan2 60° + 3tan2 45° :
(A) 3
(B)4
(C )  6
(D)5

48. If tan A - 2, tan B = 1, find tan(A - B) :
(A)1/2
(B)1/3
(C ) 1/4
(D) 0

49, Find the area of the AABC , given b * 3cm \ c = 2cm, A = 30° :
(A)5/2 sqxm
(B)1/2 sq.cm
(C ) -1 sq.cm
(D) —sq.cm 2

50. Find the equation of a line parallel to 2x - 3y +1= 0 and passing through (1,1) : 
(A) 3x - 2y - 5 = 0
(B)2x - 3.y - 1 = 0
(C )  - 3x + 2,y + 5 = 0
(D)2x + 3y -1 = 0

51.Find the equation of the line with X-intercept 5 and passing through the point (-1,2)
(A)x-3y=5
(C )  x + 3y = 5
(B) 3x + y = 5
(D) x/5 + 5y/3=1

53Find V
ifx* 1 ifx = 1
is continuous at x = 1
(A)3
(B)2
(C )  1
(D)-3

52. Evaluate lim 5x — * *3 x + 1
(A)5
(B)15
(C ) 1
(D) 4

53.


54. If y =
dy .
----t= find -f- :
sec√x dx
(A) sec√x tan√x
sin√x
(B)
(C ) 
2√x
-sin√x
2√x
(D) coeVx

55. Find dy/dx if > = x2sinx: dx
(A) x2cosx + 2xsinx (C )  x2 cos x + 2 sin x
(B) 2xcosx + sinx (D) x2 sin x + 2x coax

56. Find J(sec2 x + e* - b)dx:
(A) tanx + e*-5 + c
(B)cot x + e3 -5x+c
(C )  tan x+ex-5x+ c
(D)secx+ex -5x + c

57.Evaluate Jl + x2
(A)0
(B)00
(C )  1
(D) 2

58.Find 
(A) ^5tan-'(5)+c
(B)2tan'l(r5)+c
(C ) 2/5sin '(x5)+c
(D)2cot'l(x,0)+c

59. Find the area enclosed between the curve x=y2-2y, the y-axis and the ordinate at y=l and y= 2:
(A) — sq. units 3
(B)5 — sq. units 3
(C )  —x sq. units 5
(D)2 -sq. units

60.Solve -dy/dx + ytanx = cos3x: dx
(A) ycosx = sinx+c• 
(B)ysec x=sinx + c
(C )  y = sinx + c
(D)ysec x=x + c

61.An example for a tribasic acid :•
(A) Sulphuric acid
(B)Oxalic acid
(C )  Phosphoric acid
(D)Acetic acid

62.The process of separating crude oil into various fractions :
(A) ' Reforming
(B)Refining
(C )  Cracking
(D)Knocking

63.The monomer of Nylon 6 is:
(A) Caprolactum
(B)Adipic acid and Hexamethylene diamine
(C ) Styrene
(D)Dicyanide

64.Ascorbic acid is a :
(A)Mineral acid 
(B) Fat 
(C )  Vitamin
(D) Steroid

65.Bakelite is an example of:
(A)Thermosetting plastic
(B) Thermoplastic
(C )  Natural Polymer
(D) Petroleum fraction

66.Temporary hardness is caused by the presence of: 
(A)Sulphates
(B) Carbonates
(C )  Nitrates
(D) Phosphates

67.As temperature increases the conductivity of a metal: 
(A) increases
(B)decreases
(C )  ho change‘ 
(D)first increases then decreases

68.A self indicator is :
(A) Phenolphthalein
(B) Methyl orange
(C )  Starch
(D) Potassium permanganate

69.Galvanization is a process of applying a protective coating on iron with : (A) Copper
(B) Tin
(C )  Aluminium
(D) Zinc

70.The metal present in chlorophyll: 
(A) Tron   (C )  Magnesium
(B) Zinc (D) Copper

71.What is the angle preferred by athletes in javelin throw?
(A) 90° 
(B) 75*
(C ) 45°
(D) 25°

72.Identify the physical quantity having no dimensions :
(A) strain 
(B)stress
(C )  pressure
(D)modulus of elasticity

73.When a bullet is fired using a gun,moves back with a velocity called : 
(A) critical velocity
(B)muzzle velocity 
(C )  terminal velocity
(D)recoil velocity

74.For a geostationary satellite the quantity common for both Earth and satellite is: 
(A) linear velocity
(B) angular velocity
(C ) orbital velocity^* 
(D) escape velocity


75.The working principle of Venturi Meter is :
(A)Bernoulli's principle and continuity equation
(B)Archimedes principle 
(C )  Torricellis theorem
(D) Boyle's law

76.Two resistors 10 n and 200 are connected in series with a cell of cmf 2 V and a closed circuit is formed, then the current through:
(A)20 Ω is greater
(B)10 Ω is greater
(C ) both are same
(D)none of the above

77.When temperature increases viscosity of a liquid :
(A)increases
(B) decreases 
(C )  unchanged
(D)increases for certain liquids and decreases for certain other liquids

78.What is the change in Kinetic Energy (KE) of a body if its mass m and velocity v are doubled?
(A)KE becomes 2 times
(B)KE becomes 4 times
(C ) KE becomes 6 times
(D)KE becomes 8 times

79.The working principle of Optical Fibre (OFC) is:
(A)total internal reflection
(B)reflection
(C ) refraction 
(D)diffraction

80.When the energy of the incident photon is greater than the work function of the photoelectric material on which it falls the remaining energy will be used for:
(A)ejecting a second photo electron
(B)increasing the temperature of the emitted electron
(C ) giving kinetic energy to the emitted electron
(D)all the above

81.First European fort in India :
(A) St.Angelo Fort in Kammur
(B) St. George Fort in Madras
(C )  William Fort in Culcutta
(D) Fort Manual in Kochi

82.The first news paper in Malayalam “Rajya samacharam” was published from : (A) Kozhikkode
(B) Thiruvananthapuram
(C )  Thalassery
(D) Kochi

88.Indian Constitutional reforms in 1909 known as :
(A)Minto Morley reforms
(B)Montegu Chelms ford reforms
(C ) Pits India Act
(D)Regulating Act

84.Mrs. Annie Besant started a w’eekly Journal named : 
(A)Viveka Vardhini
(B)Common wheel
(C ) Harijan
(D) Young India

85.The first Chinese traveler who refers to kerala is :
(A)Chou-Ju-Kua
(B)Fahian
(C ) Hsuan tsang
(D)Ma Huan

86.The Shakespearean play The Merchant of Venice’ was translated in to Malayalam by whom? 
(A) MT.Vasudevan Nair
(B) A. Govinda pillai
(C )  Sir Walter scott
(D) KC Kesava pillai.

87.The Chairman of the Royal commission on the public services in India which was appointed in September 1912:
(A) Mr. Gk .Gokhale
(B) Lord Ronald Shy
(C )  Lord Islington*_ 
(D) Sir Valantinc chirol

88.Who started Indian womens University at Poona in 1916?
(A)Prof. Karve,
(B)Mr. A Latiff .ICS
(C ) Rajaram Mohan Roy
(D)M.G. Ranade

89.The British Prime Minister Who made the famous Communal Award?
(A)Winston Curchill
(B)Clement Attlee
(C ) James 1
(D)Mr. Ramsay Mac Donald

90.The Congress representative at the second session of the Round Table Conference :
(A)Jawaharlal Nehru
(B)Gandhiji
(C ) Jawaharlal Nehruand Gandhiji.
(D)Moulana Azadand Gandhiji

91.In which year was the report of the simon commission published?
(A)1927
(B)1928
(C ) 1929‘
(D)1930

92.Who created the first All India Trade Union congress in 1920?
(A)MN. Roy
(B)BP. Wadia
(C ) RajagopalaChari
(D)NM. Joshi

93.Who founded All India NawJnwan Bharat Sabha?
(A)Bhagat Singh
(B)Lala Lajpatrai
(C ) Aurobindo ghosh
(D)Jay Prakash Narayan

94.One of the following leaders took a leading part in the formation of the Czechoslovak — Indian Association in 1934. Who is he?
(A)Janaki nath Bose
(B)Motilal Nehru
(C ) Sarat chandra Bose
(D)Netaji Subhas Chandra Bose

96.The partition of the punjab and Bengal was effected by two Commissions appointed by the British Govt Who was the chairman of this commission?
(A)Lord Mount Batten
(B)Lord wavell
(C ) Cyril Had cliffe
(D)AV. Alexander

96.Who took charge of the Indian state department created by the Gov't of India on 5th July 1947?
(A)SardarVallabhai Patel
(B)Rajendra Prasad
(C ) BR.Ambedkar
(D) VP. Menon

97.The father of renaissance in kerala :
(A)K.Kelappan
(B)Rajaram Mohan Roy
(C ) Sri Narayana Guru
(D)EMS Namboodiripad

98.Who published A1 Islam Arabic-malayalam monthly?
(A)Abul kalam Azad
(B)Ali Musliyar
(C ) Vakkam Abdul Khadar Moulavi’
(D)E Moidu Moulavi

99.Samatua samajam was founded by whom?
(A)Vagbhatananda
(B)Vaikunta swamikal 
(C ) Chattanbi Swamikal
(D)Ulloor Parameswara iyer

100.Slave trade was stopped in Travancore by the following ruler:
(A) Rani Gauri Laksmibai
(B) Gauri Parvathibai
(C )  Swathi Thirunal
(D) Sri Chithira thirunal Bala ram a varma