Railway Recruitment Board, Malda Assistant Loco Pilot Examination Held on 16-07-2006
1. Optical fibres are most widely used for which of the following
(a) Communication
(b) Medical
(c) Interior decoration
(d) Musical instruments
2. A number divided by 68 gives the quotient 269 and remainder zero. If the same number is divided by 67, the remainder is
(a) 0
(b) 1
(c) 3
(d) 2
3. If (x + y) ; (x – y) = 7 : 3, then (x2 + y2) : (x2 – y2) is equal to
(a) 16 : 29
(b) 49 : 9
(c) 29 : 21
(d) 25 : 4
4. A dealer marks his goods 25% above the cost price and allows 10% discount to his customers. What is his gain per cent?
(a) 8.5%
(b) 12.5%
(c) 15%
(d) 17.5%
5. The length of a rectangle is halved, while its breadth is tripled. What is the percentage change in area?
(a) 25% increase
(b) 50% decrease
(c) 50% increase
(d) 25% decrease
6. A cone of height 9 cm and diameter of the base 18 cm is carved from a wooden solid sphere of radius 9 cm. The percentage of wood waterd is
(a) 55%
(b) 65%
(c) 75%
(d) 60%
7. A boat goes 8 km in one hour along the stream and 2 km in one hour against the stream. The speed of the stream in km/h is
(a) 2
(b) 3
(c) 4
(d) 6
8. If 
the value of x will be
(a) 2
(b) −1/12
(c) both (a) and (b)
(d) none of the above
9. India’s first neutron reactor ‘Kamini’ is built at the nuclear research centre located at
(a) Chennai
(b) Kalpakkam
(c) Hyderabad
(d) Trombay
10. Pendulum clocks way run fast in
(a) summer
(b) winter
(c) spring
(d) rainy season
11. With which of the following instruments does a sailor in a submarine see the objects on the surface of sea?
(a) Periscope
(b) Telescope
(c) Gyroscope
(d) Stereoscope
12. The working of the quartz crystal in the watch is based on
(a) Johnson effect
(b) Photoelectric effect
(c) Edison effect
(d) Piezoelectric effect
13. Cryogenic engines find applications in
(a) Rocket technology
(b) Frost-free refrigeration
(c) Submarine propulsion
(d) Researchers in super-conductivity
14. Which of the following instruments is used for precise measurement of refractive index?
(a) Photometer
(b) Calorimeter
(c) Spectrometer
(d) Spherometer
15. Stainless steel is an alloy of
(a) iron, carbon and nickel
(b) iron and manganese
(c) iron, chromium and nickel
(d) iron, chromium and zinc
16. Two elements that are frequently used for making transistors are
(a) germanium and silicon
(b) boron and aluminium
(c) iridium and tungsten
(d) niobium and colombium
17. Of the following metals which one is the cause of concern in air pollution in large cities?
(a) Nickel
(b) Chromium
(c) Copper
(d) Lead
18. Method of recording three dimensional photographs using laser beam is
(a) Memography
(b) Holography
(c) Tomography
(d) Xerography
19. Broad Gauge Railway Locomotives, are manufactured by Indian Railways at:
(a) Patiala
(b) Varanasi
(c) Chittaranjan
(d) Both (b) and (c)
20. The oldest oil refinery in India is at
(a) Barauni
(b) Haldia
(c) Digbol
(d) Baroda
21. Which of the following wild life sanctuaries in Assam?
(a) Dudwa
(b) Manas
(c) Sunderban
(d) Kanha
22. The inexhaustible natural resource of the earth is
(a) air
(b) coal
(c) forest
(d) fossil fuel
23. The major raw material for ceramic industry is
(a) gypsum
(b) kaolin
(c) silica
(d) potash
24. The instrument used for finding out wind-direction is
(a) Anemometer
(b) Wind gauge
(c) Wind wane
(d) Cyclonometer
25. In a red and green colour light signaling system if red is to be replaced with some other colour, the best replacement shall be with
(a) violet
(b) yellow
(c) orange
(d) blue
26. Boyle’s law holds good for any gas at:
(a) high temperature and low pressures
(b) high temperature and high pressures
(c) low temperature and high pressures
(d) low temperature and low pressures
27. The anode in a dry cell consists of:
(a) copper
(b) zinc
(c) cadmium
(d) graphite
28. With one unit of electricity (one kilowatt hour), a 100 W bulb burn for
(a) 1 hour
(b) 5 hours
(c) 10 hours
(d) 20 hours
29. Iron is obtained from
(a) ignite
(b) pitchblende
(c) monazite sand
(d) haematite
30. Which of the following are affected by AIDS?
(1) Blood circulatory system
(2) Nervous system
(3) Immune system
(4) Respiratory system
(a) (1), (2) and (3)
(b) (2), (3), and (4)
(c) (1), (2) and (4)
(d) (1), (3) and (4)
31. Out of the following which is not matching the group?
(a) Touch screen
(b) Mouse
(c) Printer
(d) Key board
32. The popular TV serial “Neem Ka Ped” was written by
(a) Ashaprna Devi
(b) Harivansh Rai Bachchan
(c) Sharad Joshi
(d) Rahi Masoon Raza
33. Vikram Sarabhai Space Centre is located at
(a) Ahmedabad
(b) Sriharikota
(c) Pune
(d) Thiruvananthapuram
34. The headquarters of the National Power Training Institute is located in
(a) Lucknow
(b) Faridabad
(c) Bhopal
(d) Hyderabad
35. Council o f Scientific and Industrial Research (CSIR) gives which of the following awards?
(a) Hari Om Ashram
(b) Jamanalal Bajaj
(c) Dhanvantari
(d) S. S. Bhatnagar
36. The much talked about “Bio-diesel” is obtained from
(a) liquefactioin of Gobar Gas
(b) liquiefaction of CNG
(c) jatropha curcas seeds
(d) naptha
37. Writers Building is the headquarters of
(a) West Bengal Government
(b) Press Trust of India
(c) All India Writers Association
(d) Indian Tobacco Company
38. Which of the following was earlier known as the Lushi Hills District?
(a) Meghalaya
(b) Mizoram
(c) Nagaland
(d) Tripura
39. In Railway terminology the term ‘Rolling Stock’ means
(a) stock of rolled items like rails, angles, beams, steel plates etc.
(b) ratio of incoming to outgoing stock of parcels
(c) wagons, coaches, locomotives with the railways
(d) stock of fast moving stores (consumable) item
40. Which of these are not on IR’s glorious heritage list?
(a) Darjeeling Himalaya Railway
(b) Nilgiri Mountain Railway
(c) Mumbai C. S. T. Building (earlier Bombay VT)
(d) Matheran Light Railway
41. Besides ‘Thermite’ welding process which of the following is used for joining rails on Indian Railways?
(a) Submerged are welding
(b) Friction welding
(c) Flash-butt welding
(d) Plasma welding
42. On Indian Railways, after coal which is the second largest source of commodity wise originating tonnage?
(a) Cement
(b) Ores
(c) Fertilizers
(d) Minerals oils
43. In a main line diesel locomotives, the transmission of power is through
(a) electric
(b) hydraulic
(c) clutch and gear box arrangement
(d) worm and wormwheel
44. The official mascot for 2010 Commonwealth Games in Delhi, is
(a) Bholu
(b) Sheru
(c) Shera
(d) None of these
45. Sweet crude oil is the term used for crude oil with a low level of
(a) wax
(b) sulphur
(c) carbon
(d) methane
46. The water will occupy minimum volume at
(a) −1°C
(b) 0°C
(c) 2°C
(d) 4°C
47. The Union Government has decided to keep interest rate on Employees Provident fund in 2005-06 as
(a) 7.5%
(b) 8.5%
(c) 8.0%
(d) 9%
48. How long does the moon take to revolve once around the earth?
(a) A little less than 28 days
(b) A little longer than 28 days
(c) Equal to 28 days
(d) None of the above
49. If 
what will be the value of x?
(a) 1
(b) −1
(c) 2
(d) −2
50. A motor of 4 kilowatt gives 4 HP power. What would be the efficiency?
(a) 74.6%
(b) 69.3%
(c) 76.3%
(d) 93%
51. As a memory of victory of Khandesh of Gujarat, Akbar built which of the following?
(a) Bada Imambara
(b) Buland Darwaja
(c) Jama Masjid
(d) None of these
52. Which of the following is the length of cricket pitch?
(a) 20.12 m
(b) 17.5 m
(c) 16.6 m
(d) 19.7 m
53. Which of the following is the oldest tournament of India?
(a) Rovers cup
(b) Santosh trophy
(c) Durand cup
(d) I. F. A. Shield
54. Which country will organize the World Cup Football Tournament, 2010?
(a) Brazil
(b) South Africa
(c) Italy
(d) Iran
55. Quantum-principle is used to explain which of the following phenomena?
(a) Interference
(b) Diffraction
(c) Polarization
(d) Photoelectric Effect
56. To establish a new standard time, the government of which neighbouring country has ordered to slow down its national time by 30 minutes?
(a) Myanmar
(b) Sri Lanka
(c) Nepal
(d) Bangladesh
57. Each side of the cubical cross-section of a rod is a 60 mm and its length is 100 mm. It is melted into a cylindrical rod to 50 mm diameter. If the process wastage is 5%, what will be the length (in mm) of the new rod?
(a) 168
(b) 179
(c) 189
(d) 193
58. A wooden block of 80 cc volume is floating in water with 60 cc of volume water surface. Density (in g/cc) would be
(a) 0.12
(b) 0.15
(c) 0.21
(d) 0.25
59. Full form of IISS is
(a) International Institute of Strategic Studies
(b) Indian Institute of Social Sciences
(c) Indian Institute of Strategic Sciences
(d) Indian Institute of Sea Sciences
60. There are three sources of sound of frequencies 400 Hz, 401 Hz and 402 Hz respectively. What would be the number of beats heard per second?
(a) 0
(b) 1
(c) 2
(d) 4
61. Which reamer is suitable to drill in key-way grove?
(a) Straight Fluted Reamer
(b) Helical Fluted Reamer
(c) Pilot Reamer
(d) Adjustable Reamer
62. Washer is used for
(a) Self locking
(b) Nut locking
(c) To get rid of vibrations
(d) To bind the fabrication work
63. Which of the following bearings has spherical profile outer recess?
(a) Roller bearing
(b) Angular contact bearing
(c) Thirst bearing
(d) Self-aligning ball bearing
64. High gearing ratio can be obtained in which of the following gearings?
(a) Bevel gearing
(b) Spur gearing
(c) Worm gearing
(d) Helical gearing
65. Distance of the centre from pulley’s centre should not be …………. times less than the diameter of the big pulley
(a) 1.5
(b) 2
(c) 2.5
(d) 3
66. Metal of the rivet to rivet the aluminium sheets should be
(a) aluminium
(b) copper
(c) brass
(d) soft iron
67. In large scale production which o f the following is used to guid the tool and grip strongly the job?
(a) Template
(b) Housing
(c) Zig
(d) Fixture
68. Which of the following is used to grip the cylindrical rough casting strongly for lathe?
(a) Three-jaw wheel
(b) Four-jaw wheel
(c) Collect wheel
(d) Magnetic wheel
69. With the purpose of calibration which of the following grades of slip grade is used?
(a) Workshops grade
(b) Inspection grade
(c) Calibration grade
(d) None of these
70. Which of the following threads is used for power transmission in one direction?
(a) Square
(b) Acme
(c) Worm
(d) Buttress
71. Elastic coupling is used
(a) To have a careful precaution in overloading
(b) For convenience in repairing
(c) To have a precaution in little vertical and lateral combination
(d) To take precaution in little vertical, lateral and horizontal combination
72. In automobile, magnets is mainly the
(a) D. C. generator
(b) A. C. generator
(c) Transformer
(d) Capacitor
73. The springs used in back wheels of the tractor are
(a) helical spring
(b) leaf spring
(c) the combination of helical and leaf springs
(d) springs are not used
74. Disadvantage in radial ply tier, in comparison with cross ply tier is
(a) dissimilar braking
(b) high cornering power
(c) low rolling resistance
(d) inconvenient to operate at low speed
75. In pressurized engine cooling system, vacuum destruction valve is fitted in pressurized cap, fitted over the radiator. It is used
(a) to evacuate the air from the cooling system
(b) to release extra pressure of the generated steam
(c) to prevent the radiator from falling down to atmospheric pressure
(d) to discharge the smoke of the chemical mixed with coolant
76. Mineral oil, which is called base oil is used in preparation of lubricating oil for I. C. engines and the chemical used is called
(a) resin
(b) additives
(c) passivator
(d) catalyst
77. In web winding MO of commutator sections should be
(a) even
(b) odd
(c) even and odd both
(d) none of the above
78. Wire used in rheostar is
(a) nicrhome wire
(b) constantan wire
(c) tungsten wire
(d) eureka wire
79. To get more current from the source
(a) resistances are connected in parallel
(b) resistances are connected in series
(c) resistances are connected in parallel in series
(d) none of the above
80. Power coefficient of AC circuit is equal to which of the following?
(a) Tangent of phase angle
(b) Sin of phase angle
(c) Cos of phase angle
(d) Cosec of phase angle
81. Saturated magnetic flux is increased by which of the following?
(a) By increasing the number of loops
(b) By raising the current
(c) By extending the core diameter
(d) By increasing the reactance
82. The function of accumulator of refrigeration system is
(a) to store refrigerant
(b) to separate the oil
(c) to equalize the pressure of suction and emission
(d) to prevent the liquid refrigerant from entering the compressor
83. Cooling system used in aircrafts is
(a) vapour compression system
(b) vapour absorption system
(c) air cycle refrigeration system
(d) steam jet water vapour system
84. Boiling point of refrigerant can be altered by changing which of the following?
(a) Superheat setting of expansion valve
(b) Pressure inside the refrigeration system
(c) Use of thermostat in the system
(d) Humidity of refrigerant
85. Expansion device used in evaporator is
(a) capillary tube
(b) continuous pressure expansion valve
(c) thermostatic expansion valve
(d) to maintain constantly the liquid layer
86. Among single phase motors, why is the universal motor most appropriate?
(a) For continuous motion
(b) For traction
(c) For dot fan
(d) Compressor
87. p – n junction functions as insulator, if it is connected with
(a) AC
(b) forward bias
(c) reverse bias
(d) none of these
88. Main function of transistor is to
(a) Simplify
(b) Amplify
(c) Improve
(d) Generate music
89. In common base amplifier, the phase difference between input signal voltage and output voltages
(a) 0
(b) π/4
(c) π/2
(d) π
90. Negative feedback
(a) Improves the stability
(b) Decreases the stability
(c) Generates oscillation
(d) Blocks the current in the tube
91. Which type of measuring rule is used by a blacksmith to mark some sign while working on pattern and hot job?
(a) Narrow rule
(b) Shrink rule
(c) Hooke rule
(d) Short rule
92. For correctness at 60° angle, which of the following gauges is used to test the threading tool of lathe?
(a) Screw pitch gauge
(b) Thread lug gauge
(c) Centre gauge
(d) Thread ring gauge
93. New hexablade should not be used in blind saw cut, constructed by old blade, because
(a) there is no sufficient space to operate the blade
(b) blade is costly
(c) teeth of blade are sharp
(d) the job becomes difficult due to slit
94. The symbol ‘∇’ represents the value of surface finish
(a) 16 to 40 micron
(b) 40 to 80 micron
(c) 60 to 80 micron
(d) none of the above
95. The property of metal, which makes it suitable for-belite in its sheet is
(a) Ductility
(b) Malleability
(c) Tensility
(d) Stiffness
96. ‘Nitriding’ is related to which of the following phenomen?
(a) Hardening
(b) Tempering
(c) Case hardening
(d) Normalization
97. What is the reason of fast decay of drill-bit and its incapability to drill the metal?
(a) Large clearance angle
(b) Absence of body clearance angle
(c) Total absence or shortage of lip clearances angle
(d) Large cutting angle
98. On both the edges of the flat file, there are
(a) Single cut teeth
(b) Double cut teeth
(c) Second cut teeth
(d) Diamond cut teeth
99. If the external resistance of the battery is much more higher than the internal resistance, the best combination will be
(a) series
(b) parallel
(c) mixed
(d) none of these
100. What does the following symbol indicate?
(a) Line passing through tube
(b) The line which disconnects power line
(c) Cartridge fuse
(d) Overhead line
101. What is the full form of ‘LASER’?
(a) Linear amplified and simulated energy radiations
(b) Light amplification by stimulated emission of radiation
(c) Light amplified by stimulated emission of radiation
(d) Linearly amplified by stimulated energy radiations
102. To remove ghosts from TV pictures
(a) Long transmission line is used
(b) Booster is used
(c) Transmission line is twisted
(d) None of the above
103. Function of IFT in radio circuit is
(a) To change intermediate frequency into audible frequency
(b) To demodulate the transmitted radio signals
(c) To change radio frequency into intermediate frequency
(d) To change radio frequency into audible frequency
104. Radio waves of the frequency 30 MHz to 300 MHz are related to which of the following?
(a) High frequency band
(b) Very high frequency band
(c) Ultra high frequency band
(d) Infra high frequency band
105. What does the following figure represent?
(a) n-p-n transistor
(b) p-n-p transistor
(c) Forward biased p-n junction diode
(d) Reverse biased n-p junction diode
106. 400 V is charged in 4 μF condenser and then its plates are connected by resistance of 1 K ohm. The heat generated in the resistance will be
(a) 1.28 J
(b) 0.64 J
(c) 0.32 J
(d) 0.16 J
107. Resistance of the circuit between A and D will be
(a) RΩ
(b) 5RΩ
(c) 
(d) 
108. As a result of increase in frequency, the inductive reactance will
(a) rise
(b) fall
(c) remain constant
(d) none of these
109. If the coil transformer is made of thick wire then
(a) Loss of eddy current will be more
(b) Oozing of magnetic flux will be less
(c) Heat loss of joule will rise
(d) Heat loss of joule will fall
110. The value of conductance in the following circuit will be
(a) 0.1 mho
(b) 0.025 mho
(c) 0.103 mho
(d) 9.7 mho
111. Transformation ratio of a set-up transformer is 3 : 2. What would be the secondary voltage, while the primary voltage is 30V?
(a) 15 V
(b) 45 V
(c) 90 V
(d) 300 V
112. The inductance between A and D in the following circuit will be
(a) 1 H
(b) 9 H
(c) 0.66 H
(d) 0.99 H
113. 6 cells are connected to form a battery. Efficiency of every cell is 5 Ah at 1.5 volt. Efficiency of battery will be equal to which of the following?
(a) 20 Ah at 9 V
(b) 30 Ah at 1.5 V
(c) 5 Ah at 9 V
(d) 5 Ah at 1.5 V
114. If the flux of the poles is doubled and motion is also doubled, the inducted emf of the generator will become
(a) half
(b) remain constant
(c) double
(d) four times
115. Couple of armature in an electric motor depends on which of the following?
(a) Number of turns of wire in the coil
(b) Area of the coil
(c) Power of the field
(d) All of the above
116. Motion of revolving magnetic flux of a 3-phae induction motor will be represented by which of the following?
(a) 
(b) 
(c) 
(d) 
117. Initial torque of 3-phase motor can be increased by which of the following?
(a) By raising the rotor resistance
(b) By increasing the stator winding resistance
(c) By increasing the air-interstice
(d) By decreasing the air-interstice
118. Which of the following is the best conductor ?
(a) Copper
(b) Silver
(c) Platinum
(d) Gold
119. Bit of the soldering iron is constructed with which of the following?
(a) Iron
(b) Copper
(c) Brass
(d) Stainless steel
120. Residual magnetism is necessary in which type of D. E. machine?
(a) Self-excited generator
(b) Motor
(c) Separately-excited generator
(d) Dynamo
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