17 June 2012

VIZAG STEEL MECHANICAL PAPER 2012 SOLVED

1. If a man gains 5% by selling nibs at the rate of 34 a rupee, how many a rupee must he sell them so as to gain 19% ?
a) 33
b) 31
c) 30
d) 29
ans. c

2. Which the lightest gas among the following?
a) Ozone
b) Helium
c) Hydrogen
d) Carbon dioxide
ans. b

3. Virat Kohli has been slated the vice captain of Indian cricket team, he represents which of the following states?
a) Delhi
b) Uttar Pradesh
c) Gujarat
d) Rajasthan
ans. a

4. A ring gauge is used to measure
a) outside diameter but not roundness
b) roundness but not outside diameter
c) both outside diameter and roundness
d) only external threads
ans. c

15. In 3 hours a boat can be rowed 9 km up stream or 18 km down stream . Find the speed of the water in the stream.
a) 1 km/h
b) 1.5 km/h
c) 1.75 km/h
d) 2.25 km/h
ans. b

16. A carnot cycle is having an efficiency of 0.75 . If the temperature of the high temperature reservoir is 727'C , what is the temperature of low temperature reservoir ?
a) 23'C
b) -23'C
c) 0'C
d) 250'C
ans. b

17. How many 10 digit numbers can be formed by using the digits 1 and 2?
a) 10!
b) 10C2
c) 10P2
d) 2^10
ans.d

18.The first pair of words provide a definite relationship. Complete the second pair from the options given, such that the same relationship is maintained?
Rain : Drop :: Snow : ?
a) ice
b) drop
c) flake
d) white
ans. c

19. Friction at the tool-chip interface can be reduced by
a) decreasing the rake angle
b) increasing the depth of cut
c) decreasing the cutting edge
d) increasing the cutting speed
ans. d

20. Two towns A and B are 60 Km apart. A school has to be built to serve 150 students from A and 50 students from B. If the total distance to be travelled by all the students is to be as less as possible, where should the school be built?
a) in town B
b) 45 km from B
c) in town A
d) 45 km from A
ans. c

21. Lumped heat transfer analysis of a solid object suddenly exposed to a fluid medium at a different temperature is valid when
a) Biot number< 0.1
b) Biot number >0.1
c) Fourier number< 0.1
d) Fourier number > 0.1
ans. a

22. The first pair of words provide a definite relationship. Complete the second pair from the options given , such that the same relationship is maintained.
Axe : Woodman :: Awl : ?
a) plumber
b) tailor
c) cobbler
d) painter
ans. c

23. which one of the following nations donated 1 million US dollars to Nalanda International University ?
a) China
b) France
c) UK
d) USA
ans. a

24. Choose the odd one out among the given words:
mirror , glass, reflect, copy , emulate
a) glass
b) reflect
c) copy
d) emulate
ans. c

25. Dew point temperature is the temperature at which condensation begins when the air is cooled at constant
a) volume
b) entropy
c) pressure
d) enthalpy
ans. b

26. A solid cylinder is located at the centre of a hollow sphere . The diameter of the sphere is 1 m, while the cylinder has a diameter and length of 0.5 m each . The radiation configuration factor F11 is
a) 0.375
b) 0.625
c) 0.75
d) 1
ans. b

27. Fill in the blank with the best option
____________ they are poor, they are happy.
a) As
b) Though
c) Because
d) If
ans. a

28. In electro-discharge machining , the tool is made of
a) copper
b) HSS
c) cast iron
d) plain carbon steel
ansl. a

29. Two identical ball bearings P and Q are operating at loads 30 kN and 45 kN respectively. The ratio of the life of bearing P to the life of bearing Q is
a) 81/16
b) 27/8
c) 9/4
d) 3/2
ans. b

30. The crank radius of a single-cylinder I.C. engine is 60 mm and the diameter of the cylinder is 80 mm . The swept volume of the cylinder in 3 cm is
a) 48
b) 96
c) 302
d) 603
ans. d

31. A series of words is given. From the options choose the order of words which makes it meaningful.
1. Travel  2. Destination  3. Payment  4. Berth /seat no.  5. Reservation  6. Availability of berth/ seat
a) 1,2,5,4,3,6
b) 2,6,3,5,4,1
c) 6,2,5,4,3,1
d) 5,3,4,1,6,2
ans. b

32. Find the least number of complete years in which a sum of money put out at 20% compound interest will be more than doubled.
a) 3
b) 4
c) 5
d) 6
ans. b

33. Tooth interference in an external involute spur gear pair can be reduced by
a) decreasing center distance between gear pair
b) decreasing module
c) decreasing pressure angle
d) increasing number of gear teeth
ans. b

34. Two 1 mm thick steel sheets are to be spot welded at a current of 5000A. Assuming effective resistance to be 200 micro-ohms and current flow time of 0.2 second , heat generated during the process will be
a) 0.2 joule
b) 1 joule
c)  5 joule
d) 1000 joule
ans. d

35. In PERT analysis a critical activity has
a) maximum float
b) zero float
c) maximum cost
d) minimum cost
ans. b

36. A bookseller sells a book at a profit of 10%. If he had bought it at 4% less and sold it for Rs.6 more, he would have gained 18 3/4 % .What did it cost him?
a) Rs. 118
b) Rs  136
c) Rs 142
d) Rs 150
ans. d

37. Choose the antonym of the given word
Talkative
a) babbling
b) silent
c) taciturn
d) vocal
ans. c

38. If 6 men or 9 boys can reap a field in 8 days, in how many days will 8 men and 6 boys can reap the same field ?
a) 3.5 days
b) 4 days
c) 4.5 days
d) 5 days
ans. b

39. Which of the following materials requires the largest shrinkage allowance, while making a pattern for casting?
a) aluminium
b) brass
c) cast iron
d) plain carbon steel
ans. a

40. The mechanism used in a shaping machine is
a) a closed 4-bar chain having 4 revolute pairs
b) a closed 6-bar chain having 6 revolute pairs
c) a closed 4-bar chain having 2 revolute and 2 sliding pairs
d) an inversion of the single slider-crank chain
ans. d

41.A company uses 2555 units of an item anually. Delivery lead time is 8 days. The recorder point ( in number of units) to achieve optimum inventory is
a) 7
b) 8
c) 56
d) 60
ans. c

42. At an examination, in which full marks were 500, A got 10 % less than B, B 25% more than C and C 20% less than D. If A got 360, what percentage marks did D get?
a) 64%
b) 78%
c) 80%
d) 82%
ans. c

43. If we divide 581 in three parts such that 4 times the first may be equal to 6 times the second and 11 times the third, then the three parts are in the ratio of
a) 4:6:11
b) 11: 6: 4
c) 1/4:1/6: 1/11
d) none of these
ans. c

44. The shear strength of a sheet metal 300 Mpa The blanking fore required to produce a blank of 100 mm diameter from a 1.5 mm thick sheet is close to
a) 45 kN
b) 70 kN
c) 141 kN
d) 3500 kN
ans. c

45. Moist air at a pressure of 100 kPa is compressed to 500 kPa and then cooled to 35' C in an aftercooler. The air at the entry to the aftercooler is unsaturated and becomes just saturated at the exit of he aftercooler . The saturation pressure of water at 35'C is 5.628 kPa. The partial pressure of water vapour (in kPa) in the moist air entering the compressor is closest to
a) 0.57
b) 1.13
c) 2.26
d) 4.52
ans. b

46. What is the speed of sound in neon gas at a temperature of 500k (gas constant of neon is 0.4210 kJ/kgK)?
a) 492 m/s
b) 460 m/s
c) 592 m/s
d) 543 m/s
ans. d

47. Complete the series with the correct alternative from the options given:
5,10, 13, 26, 29, 58, 61, ___
a) 122
b) 125
c) 128
d) 64
ans. a

48. Fill in the blank with the best option.
Ask him______ he liked it.
a) though
b) that
c) if
d) when
ans. c

49. A 2 kW, 40 litre water heater is switched on for 20 minutes. The heat capacity Cp for water is 4.2kJ/kg-k. Assuming all the electrical energy has gone into heating the water , increase of the water temperature in degree centigrade is
a) 2.7
b) 4.0
c) 14.3
d) 25.25
ans. c

51. In which state of India was the first paper mill was started?
a) West Bengal
b) Bihar
c) Orissa
d) Assam
ans. a

52. Two helical tensile springs of the same material and also having identical mean coil diameter and weight, have wire diameters d and d/2. The ratio of their stiffness is
a) 1
b) 4
c) 64
d) 128
ans. c

53. The maximum velocity of a one-directional incompressible fully developed viscous flow, between two fixed parallel plates, is 6 m s-1 . The mean velocity of the flow is
a) 2
b) 3
c) 4
d) 5
ans. c

54.The speed of a large plane is 1040 km/hr and the speed of a small plane is 416 km/hr.If the small plane files 450 km, how much distance would the large plane have flown during the same time?
a) 1080 km
b) 1125 km
c) 1180 km
d) 1200 km
ans. b

55. Planning commission of India on 18th January 2012 approved Rudrasagar development scheme. The scheme is related to which of the following state?
a) Tripura
b) assam
c) Manipur
d) Sikkim
ans. a

56. A sum of money was divided amongst 4 persons. Three of them received 1/8,2/5, and 3/16 of the whole respectively, while the forth received Rs.46 . What was the original sum?
a) Rs. 92
b) Rs. 138
c) Rs 144
d) Rs 160
ans. d

58. The material property which depends only on the basic crystal structure is
a) fatigue strength
b) work hardening
c) fracture strength
d) elastic constant
ans. a

59. A carnot cycle refrigerator operates between 250 K and 300 K. Its coefficient of performance is
a) 6.0
b) 5.0
c) 1.2
d) 0.8
ans. b

60. While cooling a cubical casting of side 40 mm undergoes 3% ,4%, and 5% volume shrinkage during liquid state, phase transtition and solid state, respectively. The volume of the metal compensated from the riser is
a) 2%
b) 7%
c) 8%
d) 9%
ans.b

61. At a production machine, parts arrive according to a Possion process at the rate of 0.35 parts per minute. Processing time for parts have exponential distribution with mean of 2minutes. when is the probability that a random part arrival finds that there are already 8 parts in the system ( in machine + in queue)?
a) 0.0247
b) 0.0576
c) 0.0173
d) 0.082
ans. c

62. Arrange the words to make a meaningful sentence
P: been  Q: I've  R:Paris  S:to  T: before
a) SRQPT
b) RTQPS
c) QPSRT
d) QPTSR
ans. c

63.A carriage driving in a fog passed a man who was walking at 3km/h in the same direction. He could see the carriage for 4 minutes and it was visible to him upto 100 m. What is the speed of the carriage?
a) 3.5 km/h
b) 4 km/h
c) 4.25 km/h
d) 4.5 km/h
ans. c

64. Misrun is a casting defect which occurs due to
a) very high pouring temperature of the metal
b) insufficient fluidity of the molten metal
c) absorption of gases by the liquid metal
d) improper alignment of the mould flasks
ans. b

66. Choose the synonym of the given word
Hackneyed
a) carriage
b) stale
c) cart
d) fresh
ans. b

67. A rotating disc of 1m diameter has two eccentric masses of 0.5 kg each of radii of 50 mm and 60 mm at angular of 0' and 150', respectively. A balancing mass of 0.1 kg is to be used to balance the rotor. What is the radial position of the balancing mass?
a) 50 mm
b) 120 mm
c) 150 mm
d) 280 mm
ans. c

68. which theory of failure will you use for aluminium components under steady loading?
a) principal stress theory
b) principal strain theory
c) strain energy theory
d) maximum shear stress theory
ans. a

69. Which of the following engineering materials is the most suitable candidate for hot chamber die casting?
a) low carbon steel
b) titanium
c) copper
d) tin
ans. b

70. The scientist who first discovered that the earth revolves round the sun was
a) Newton
b) Copernicus
c) Dalton
d) Einstein
ans. b

71. Quality screw threads are produced by
a) thread milling
b) thread chasing
c) thread cutting with single point tool
d) thread casting
ans. b

72. India become free from bird flu, ____.
a) H5N1
b) H4N1
c) H5N2
d) H3N3
ans. a

73. What is the smallest number that must be added to 6156 to make it a perfect square?
a) 244
b) 88
c) 90
d) 85
ans. d

74. A can do a piece of work in 16 days, B in 24 days. With the help of a boy they finish it in 8 days. The boy will do it alone in
a) 32 days
b) 40 days
c) 48 days
d) 96 days
ans. c

75. Choose the correct spelling
a) guard
b) gaurd
c) goard
d) guerd
ans. a

76.In India, which of the following has the largest area under cultivation?
a) wheat
b) cotton
c) rice
d) jute
ans. c

77. What is the HCF and LCM of 1/2 and 5/8?
a) 1/8
b) 2/5
c) 5/8
d) 5/16
ans. a

78. Poft Blair is located on which of the following Islands?
a) North Andaman
b) Middle Andaman
c) South Andaman
d) none of these
ans. c

79. Two pipes of inner diameter 100 mm and outer diameter 110mm each joined by a flash butt welding using 30V power supply. At the interface , 1 mm of material melts from each pipe which has a resistance of 42.4 ohm.If the unit melt energy is 64.4 MJm-3, then the time required for welding in seconds is
a) 1
b) 5
c) 10
d) 20
ans. d

80. In ECM , the material removal is due to
a) corrosion
b) erosion
c) fusion
d) ion displacement
ans. d

81. If  Rs.1200 maintains a family of 4 persons for 30 days, how long will Rs2040 maintain a family of 6 persons?
a) 28 days
b) 30 days
c) 32 days
d) 34 days
ans. d

82. For typical sample of ambient air ( at 35'C , 75% relative humidity and standard atmospheric pressure) , the amount of moisture in kg per kg of dry air will be approximately.
a) 0.002
b) 0.027
c) 0.25
d) 0.75
ans. b

83.In orthogonal turning of a low carbon steel bar of diameter 150 mm with uncoated carbide tool, the cutting velocity is 90m/min .The feed 0.24mm/rev and the depth of cut is 2 mm. The chip thickness obtained is 0.48 mm. If the orthogonal rake angle is zero and the principal cutting edge angle is 90', the shear angle is degree is
a) 20.56
b) 26.56
c) 30.56
d) 36.56
ans. b

85. A static fluid can have
a) non-zero normal and shear stress
b) negative normal stress and zero shear stress
c) positive normal stress and zero shear stress
d) zero normal stress and zero shear stress
ans. c

86.In a machine shop , pins of 15 mm diameter are produced at rate of 1000 per month and the same is consumed at a rate of 500 per month. The production and consumption continue simultaneously till the maximum inventory is reached. Then inventory is allowed to reduce zero due to consumption.The lot size of production is 1000. If backlog is not allowed, the maximum inventory level is
a) 400
b) 500
c) 600
d) 700
ans. b

87. An ideal air standard Otto cycle has a compression ratio of 8.5. If the ratio of the specific heats is 1.4, then what is the thermal efficiency (in percentage ) of the Otto cycle ?
a) 57.5
b) 45.7
c) 52.5
d) 95
ans. a

88. Ram ranks sixteenth from the top and fifteenth form the bottom in a certain examination. How many students are there in the class?
a) 30
b) 31
c) 32
d) 33
ans. a

89. Find the missing letters of the series
cab_c_bdca_d_abd
a) d,a,b,c
b) c,c,a,a
c) b,c,d,a
d) a,b,c,d
ans. a

90. A single-point cutting tool with 0.12 rake angle is used to machine a steel work-piece. The depth of cut , i.e. uncut thickness is 0.81 mm. The clip thickness under orthogonal machining condition is 1.8 mm . The shear angle is approximately?
a) 0.22
b) 0.26
c) 0.56
d) 0.76
ans. b

91. The area moment of inertia of a square of size 1 unit about its diagonal is
a) 1/3
b) 1/4
c) 1/12
d) 1/6
ans. c

92. In a pulverized-fuel-fired large power boiler, the heat transfer from the burning fuel to the walls of the furnace is
a) by conduction only
b) by convention only
c) by conduction and convention
d) predominantly by radiation
ans. c

93. A train 130 m long travelling at 45 km/h takes 30 seconds to cross a bridge. The length of the bridge is
a) 245 m
b) 275 m
c) 225 m
d) 195 m
ans. a

94. Identify the type of word/s that is/are underlined
she ran along the corridor and up the stairs to the second floor.
a) verb
b) conjuction
c) prepositon
d) adverb
ans. c

96. A steel bar of 40 mm X 40 mm square cross-section is subjected to an axial compressive load of 200 kN . If the length of the bar is 2 m and E = 200 GPa, the elongation of the bar will be
a) 1.25 mm
b) 2.70 mm
c) 4.05 mm
d) 5.40 mm
ans. a

97. Indravati hydroelectric project belongs to which state?
a) Tamil nadu
b) Orissa
c) Karnataka
d) Andra Pradesh
ans. b

98. Where is the Vallabhbhai Patel Stadium located?
a) Kolkata
b) Mumbai
c) Chennai
d) Delhi
ans. b

99. Light year is a unit of
a) time
b) velocity
c) distance
d) speed
ans. c

100. Maximum shear stress developed on the surface of a solid circular shaft under pure torsion is 240 MPa. If the shaft diameter is doubled then the maximum shear stress developed corresponding to the same torque will be
a) 120 MPa
b) 60 MPa
c) 30 MPa
d) 15 MPa
ans. c

101. In a CNC program block , N002 G02 G91 X40 Z40 ..., G02 AND G91 refer to
a) circular interpolation in counterclockwise direction and incremental diemension
b) circular interpolation in counterclockwise direction and absolute diemension
c) circular interpolation in clockwise direction and incremental diemension
d) circular interpolation in clockwise direction and absolute diemension
ans. b

102. In electro discharge machining (EDM) , if the thermal conductivity of tool is high and the specific heat of work piece is low, then the tool wear rate and material removal rate are expected to be respectively
a) high and high 
b) low and low
c) high and low 
d) low and high 
ans. a

103. A correctly designed convergent-divergent nozzle working at a designed load is 
a) always isentropic
b) always chocked
c) never chocked 
d) never isentropic
ans. b

104. Choose the synonym of the given word.
Quota
a) reserved
b) seat
c) allocation
d) marks
ans. c

105. A clutch has outer and inner diameters 100 mm and 40 mm respectively .Assuming a uniform pressure of 2MPa and coefficient of friction of liner material 0.4, the torque carrying capacity of the clutch is
a) 148 Nm
b) 196 Nm
c) 372 Nm
d) 490 Nm
ans. b

106. An item can be purchased for Rs. 100. The ordering cost is Rs. 200 and the inventory carrying cost is 10% of the item cost per annum. If the annual demand is 4000 units, then economic order quantity (in units) is
a) 50
b) 100
c) 200
d) 400
ans. a

107. A project has six activities (A to F) with respective activity duration's 7,5,6,6,8,4 days. The network has three paths A-B, C-D, and E-F. All activities can be crashed with the same crash cost per day. The number of activities that need to be crashed to reduce the project duration by 1 day is
a) 1
b) 2
c) 3
d) 6
ans. c

108. Choose the correct spelling.
a) guage
b) gage
c) gauge
d) gaige
ans.c

109. In a certain code LIBERATE is written as 56423172. How TRIBAL will be written in this code?
a) 736415
b) 673451
c) 476315
d) 743615
ans. a

110. A lead-screw with half nuts in a lathe, free to rotate in both directions has
a)V-threads
b) witworth threads
c) buttress threads
d) acme threads
ans. d

111. In how many ways 10 books be arranged on a shelf so that a particular pair of books shall be never together?
a) 8!
b) 9!
c) 2X9!
d) 8X9!
ans. d

114. Arrange the words to make a meaningful sentence.
P: handed  Q:she  R:the S:package T:me
a) RSQPT
b) TPRSQ
c) RSPQT
d) QPTRS
ans. d

111. 0.9 percent can be expressed as
a) 0.9
b) 0.09
c) 0.009
d) none of these
ans. c

116. A 4 mm thick sheet is rolled with 300 mm diameter rills to reduce thickness without any changes in its width. The friction coefficient at the work-roll interface is 0.1. The minimum possible thickness of the sheet that can be produced in a single pass is
a) 1.0  mm
b) 1.5 mm
c) 2.5 mm
d) 3.7 mm
ans. c

117. Production Flow Analysis (PFA) is a method of identifying part families that uses data from
a) engineering drawing
b) production inventory
c) bill of materials
d) route sheets
ans. c

118. Zojila pass is in which state?
a) Jammu and Kashmir
b) Sikkim
c) Uttarakand
d) Assam
ans. a

119. Which type of motor is NOT used in axis or spindle derives of CNC machine tools?
a) induction motor
b) DC servo motor
c) stepper motor
d) linear servo motor
ans.a

120. A thin cylinder of inner radius 500 mm and thickness 10 mm is subjected to an internal pressure of 5MPa. The average circumferential (hoop) stress in MPa is
a) 100
b) 250
c) 500
d) 1000
ans. b

121. Which letter group is different from the other three?
a) AERIE
b) ADEUX
c) ADMIT
d) ABUSE
ans. a

122. What is the approximate percentage change in the life of a tool with zero rake angle used to orthogonal cutting when its clearance angle is change from 10' to 7'?
a) 30 % increase
b) 30 % decrease
c) 70 % increase
d) 70 % decrease
ans. b

123. A wine merchant buys 10 casks of wine. If he sells it at Rs 5 a liter, he loses Rs 200 and if he sells at Rs 6 a liter he gains Rs 150 . Find the number of liters is a cask.
a) 25
b) 32
c) 35
d) 40
ans. c

124. The average age of 600 students of a school is 10.75 years.With enrolment of 40 new students, the average age is reduced to 10.4375 years. Find the aver age of the new students.
a) 5.5 year
b) 5.75 year
c) 6.8 year
d) 7.25 year
ans. b

125. A series of words is given. Fromt he options the order of words which makes it meaningful.
1.protect  2.pressure 3.relief  4. rain  5. flood
a) 2,4,3,1,5
b) 2,5,4,1,3
c) 2,4,5,1,3
d) 3,2,4,5,1
ans. c

126. Dandi March was from the
a) Sabarmati Ashram to Dandi
b) Dandi to Sabarmati Ashram
c) Bardoli to Dandi
d) Sabarmati to bardoli
ans. a

127. A gas having a negative Joule-Thompson coefficient , when throttled , will
a) become cooler
b) become warmer
c) remain at the same temperature
d) either be cooler or warmer depending on the type of gas
ans. b

128. Find out the missing term in the number series.
 2,6,12,20,?, 42, 56,72
a) 24
b) 30
c) 32
d) 36
ans. b

129. A 600 mm X 30 mm flat surface of a plate is to be finish machined on a shaper. The plate has been fixed with the 600 mm side along the tool travel direction. If the tool over-travel at each end of the plate is 20 mm , average cutting speed is 8m/min , feed rate is 0.3 mm/stroke and the ratio of the return time to cutting time of the tool is 1:2 , the time required for machining will be
a) 8 min
b) 12 min
c) 16 min
d) 20 min
ans. b

130. Fill in the blank with the best option.
I don't have _______ furniture.
a) many
b) much
c) lot
d) few
ans. b

132. In an MRP system, component demand is
a) forecasted
b) established by the master production schedule
c) calculated by the MRP system from the master schedule
d) ignored
ans. c

133. Vehicle manufacturing assembly line is an example of
a) product layout
b) process layout
c) manual layout
d) fixed layout
ans. c

134. The percentage of carbon in Grey cast iron is in the range of
a) 0.25 to0.75 percent
b) 1.25 to 1.75 percent
c) 3 to 4 percent
d) 8 to 10 percent
ans. c

135. A 200 X100 X 50 mm steel block is subjected to a hydrostatic pressure of 15 MPa. The Young's modulus and Poission's ratio of the material are 200 Gpa and 0.3 respectively. The change in the volume of the block is
a) 85
b) 90
c) 100
d) 110
ans. a

136. Which of the following forecasting methods takes a fraction of forecast error into account for the next period forecast?
a) simple average method
b) moving average method
c) weighted moving average method
d) exponential smoothening method
ans. d

137. which set of letters when sequentially placed at the gaps in the given word shall complete it?
__ST_OL_GY
a) ORA
b) RAO
c) ARO
d) AOR
ans. c

138. How many such pairs of letters are there in the word " APPREHENSION" each of which has as many letters between them in the word as there are between them in the English alphabet?
a) 4
b) 5
c) 6
d) 7
ans. b

139. The effective number of lattice points in the unit cell of simple cubic ,body centered cubic, and face centered cubic space lattices, respectively are
a) 1,2,2
b) 1,2,4
c) 2,3,4
d) 2,4,4
ans. b

140. Choose the antonym of the given word.
Gallant
a) courageous
b) weak
c) cowardly
d) majestic
ans. c

142. Two plates of the same metal having equal thickness are to be butt welded with electric arc. When the plate thickness changes, welding is achieved by
a) adjusting the current
b) adjusting the duration of current
c) changing the electrode size
d) changing the electrode coating
ans. c

143. A venturimeter of 20 mm throat diameter is used to measure the velocity of water in a horizontal pipe of 40 mm diameter. If the pressure difference between the pipe and throat sections is found to be 30KPa then , neglecting frictional losses , the flow velocity is
a) 0.2 m/s
b) 1.0 m/s
c) 1.4 m/s
d) 2.0 m/s
ans. d

144. Choose the odd one out among the given words
drowse, slumber, catnap, snore, doze
a) drowse
b) catnap
c) snore
d) doze
ans. c

145. Cars arrive at a service station according to Poisson's distribution with a mean rate of 5 per hour. The service time per car is exponential with a mean of 10 minutes. At steady state, the average waiting time in the queue is
a) 10 mins
b) 20 mins
c) 25 mins
d) 50 mins
ans. d

146. Union Rural development Ministry of India roped in which National award actor as the brand ambassador for improving the state of sanitation in the country?
a) Shabana Azmi
b) Ananya Chatterjee
c) Vidya Balan
d) Konkana Sen Sharma
ans. c

147. Which festival is celebrated in North India when Pongal is celebrated in Tamil Nadu?
a) Holi
b) Makar Sankranthi
c) Diwali
d) Dushera
ans. b

148. An irreversible heat engine extracts heat from a high temperature source at a rate of 10 kw and rejects heat to a sink at a rate of 50 kw. The entire work output of the heat engine is used to drive a reversible heat pump operating between a set of independent isothermal heat reservoirs at 17' C and 75'C . The rate (in kw) at which the heat pump delivers heat to its temperature sink is
a) 50
b) 250
c) 300
d) 360
ans.

149. If SINGLE is coded as 66, what code is given to WINKLE?
a) 76
b) 66
c) 78
d) 74
ans. d

150. Who among the following Indian women wrestler created a history by qualifying for London Olympics?
a) Sunita Kumari
b) Geeta Kumari
c) Namrata Gill
d) Swetha Pandit
ans. b

151. The crystal structure of austenite is
a) body centered cubic
b) face centered cubic
c) hexagonal closed packed
d) body centered tetragonal
ans. b

152. Alex Paul Menon, who was abducted by Maoists on 21 April 2012 is the District Magistrate of which district of Chattisgarh?
a) Sukma
b) Mungeli
c) Surajpur
d) Balrampur
ans. a

154. Minimum shear strain in orthogonal turning with a cutting tool of zero rake angle is
a) 0.0
b) 0.5
c) 1.0
d) 2.0
ans. d

154. The diemensional limits on a shaft of 25h7 are
a) 25.000,25.0121 mm
b) 25.000, 24.979 mm
c) 25.000, 25.007 mm
d) 25.000, 24.993 mm
ans. b

156. Select the related number from the given alternatives
123 : 132 :: 235 :?
a) 235
b) 253
c) 352
d) 252
ans. b

157. Express 0.99 as a fraction in its lowest term
a) 9/10
b) 9/100
c) 9/99
d) 1/11
ans. d

158. Which one of the following is a solid state joining process?
a) gas tungsten arc welding
b) resistance spot welding
c) friction welding
d) submerged arc welding
ans. c

159. How many bones are there in an adult human being
a) 210
b) 206
c) 260
d) 300
ans. b

160. In how many ways can a party of 4 men and 4 women be seated at circular table so that no two women are adjacent?
a) 24X24
b) 2X4!
c)  144
d) 4^4
ans. c

161. Choose the synonym of the given word
Lurid
a) shocking
b) clear
c) glowing
d) angry
ans. a

162. which one of the following state governments launched Panch Parmeshwar scheme?
a) M.P
b) Bihar
c) U.P
d) Kerala
ans. a

163. Which one of the following is a criterion in the design of hydrodynamic bearings?
a) sommerfled number
b) rating life
c) specific dynamic capacity
d) rotation factor
ans. a

164. Twenty full depth involute profiled 19-tooth pinion and 37-tooth gear are in mesh. If the module is 5 mm , the center distance between the gear pair will be
a) 140 mm
b) 150 mm
c) 280 mm
d) 300 mm
ans. a

165. The values of enthalpy of steam at the inlet and outlet of a steam turbine in a Rankine cycle are 2800 kj/kg and 1800 kj/kg respectively. Neglecting pump work , the specific steam consumption in kg/kw-hr is
a) 3.60
b) 0.36
c) 0.06
d) 0.01
ans. a

166. Internal gear cutting operation can be performed by
a) milling
b) shaping with rack cutter
c) shaping with pinion cutter
d) hobbing
ans. c

167. In the window air conditioner , the expansion device used is
a) Capillary tube
b) thermostatic expansion valve
c) automatic expansion valve
d) float valve
ans. a

168. A certain sum of money doubles itself in 8 years at simple interest . It will treble itself in
a) 12 years
b) 16 years
c) 24 years
d) 32 years
ans. b

169. Find the missing letters of the series :
AYBZC, DWEXF,GUHVI, JSKTL, ?
a) MQORN
b) QMONR
c) MQNRO
d) NQMOR
ans. b

170. Choose the antonym of the given word.
Limpid
a) liquid
b) opaque
c) transperent
d) solid
ans. b

171. which among the following soils is rich in minerals?
a) black soil
b) alluvial soil
c) red soil
d) laterite soil
ans. a

172. In how many ways a committee of 5 members can be selected from 6 men and 5 ladies, consisting of 3men and 2 ladies
a) 25
b) 50
c) 100
d) 200
ans. d

173. In a air

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