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RRB SSE Thiruvanthapuram Examination Question Paper 2015 with Keys
1. The surveying instrument which is used for rapid measurements ot distance to target, which operates electronically or electro-optically and measures distance indirectly, is
(A) prismatic compass
(B) tacheometer
(C) sextant
(D) pentaprism
Answer : D
2. While taking measurement using vernier callipers, zero error is always ____ from measured length
(A) algebraically subtracted
(B) ignored
(C) algebraically added
D) multiplied by 2 and then algebraically
Answer : C
3. A total of 324 coins of 20 paise and 25 paise make a sum of Rs.71. the number of 20 paise coins is
(A) 124
(B) 144
(C) 150
(D) 200
Answer : D
4. The main advantage of the just-in-time production (JIT) is
(A) low rejection rate
(B) low inventory-carrying costs
(C) fast detection of defects
(D) production of high quality products
Answer : B
5. If the price of milk goes up by 331/3 %, what should be the percentage by which its consumption must be reduced so that the expenditure on it remains unchanged
(A) 25 %
(B) 30 %
(C) 331/3 %
(D) 40 %
Answer : A
6. Two sound waves having equal amplitude but slightly different frequencies f1 and f2, produce beats whose frequency is
(A) f1 X f2
(B) 2 X f1 X f2
(C) |f1 - f2|
(D) f1 + f2
Answer : C
7. A room is 12 m long, 4 m broad and 3 m high. Find the length of the longest possible rod that can be placed within it
(A) 12 m
(B) 13 m
(C) 14 m
(D) 15 m
Answer : B
8. The wind system which has the highest air pressure at the centre and lowest air pressure at the outer margins are known as
(A) cyclone
(B) jet stream
(C) anticyclone
(D) tornado
Answer : D
9. The speeds of three trains are in the ratio 3:4:5. The ratio between the times taken by the fixed distance is
(A) 3 : 4 : 5
(B) 5 : 4 : 3
(C) 20 : 15 : 12
(D) 12 : 15 : 20
Answer : C
10. The maximum shear stress occurs on
(A) 45° with principal planes
(B) principal planes
(C) 30° with principal planes
(D) 90° with principal planes
Answer : A
11. A pair of equal and opposite forces with different lines of action is known as a couple. A couple produces
(A) rotation and translation
(B) rotation without translation
(C) translation without rotation
(D) first rotation and then translation
Answer : B
12. A three-carbon chain with a double bond is called propene and if it has a triple bond, it would be called
(A) propanone
(B) propyne
(C) propin
(D) propanal
Answer : B
13. For a perfect gas, V/T = constant, if P is held constant, where V= volume, T= Temperature (kelvin) and P = pressure. This gas law is
(A) Boyle's law
(B) Avogadro's law
(C) Gay-Lussac's law
(D) Charles's law
Answer : D
14. An elevation is a
(A) top view
(B) bottom view
(C) side view
(D) sectional view
Answer : C
15. Starting with the same initial, conditions, an ideal gas expands from volume V1 to V2 in three different ways. The work done by the gas is W1 if the process is purely isothermal; W2, if purely isobaric and W3, if purely adiabatic. Then
(A) W2 > W1 > W3
(B) W2 > W3 > W1
(C) W1 > W2 > W3
(D) W1 > W3 > W2
Answer : A
16. Choose the correct statement:
(A) Commons base amplifiers give higher power gain than common-emitter amplifier
(B) Common-base amplifiers give higher current gain than common-emitter amplifier
(C) In common-base amplifier the emitter terminal is common to both input and output circuits
(D) Common-emitter amplifiers give higher power gain than common base amplifiers
Answer : B
17. A relay that uses an electromagnet to control one or more switches and the contacts are of magnetic material and the electromagnet acts directly on them without requiring an armature to move them, is known as a
(A) reed relay
(B) solid-state relay
(C) latching relay
(D) coaxial relay
Answer : A
18. Find out the statement which is TRUE:
(A) Isometric projections are same as perspective projections
(B) Objects drawn with isometric projection do not appear smaller as they extend away from the viewer
(C) Lines drawn along the three coordinate axes are at 100° to one another
(D) In isometric projection, all the three coordinate axes do not appear equally foreshortened.
Answer : D
19. Methane gas
(A) is a greenhouse gas
(B) is harmful to the ozone layer
(C) is a radioactive pollutant
(D) Produces very strong acid
Answer : A
Related Paper: RRB Trivandrum JE Previous Year Question Papers 2014
20. Compression ratio of diesel engines usually is in the range of
(A) 7 : 1 to 10 : 1
(B) 11 : 1 to 13 : 1
(C) l5 : 1 to 21 : 1
(D) 25 : 1 to 31 : 1
Answer : C
21. Find out the HCF of 204, 1190 and 1445 and find out the correct option.
(A) 17
(B) 18
(C) 19
(D) 34
Answer : A
22. The series-wound dc motor develops its highest torque at
(A) high speed
(B) low speed
(C) medium speed
(D) very high speed
Answer : B
23. When plane mirror is rotated through an angle θ, the reflected ray turns through
(A) θ
(B) 2 θ
(C) 3 θ
(D) θ/2
Answer : B
24. Low-carbon steel (mild steel) has
(A) more than 0.60% carbon
(B) less than 0.60% carbon
(B) more than 0.30% carbon
(D) less than 0.30% carbon
Answer : D
25. Most accurate holes are produced by the following sequence of operations
(A) centring, drilling, reaming and boring
(B) drilling, centring, reaming and boring
(C) drilling, centring, boring and reaming
(D) centring, drilling, boring and reaming
Answer : D
26. The total route length of Indian Railways is approximately
(A) 55,000 kilometres
(B) 60,000 kilometres
(C) 65,000 kilometres
(D) 70,000 kilometres
Answer : C
27. If R0 and Rt are the values of electrical resistance at 0°C and t°C respectively and α is the temperature coefficient of resistivity of the material, then over a temperature range that is not too large, we have approximately
(A) Rt=R0 (1 - α t)
(B) Rt=R0 (1 + αt)
(C) Rt=R0 (1 - α t2)
(D) Rt=R0 (1 + α t2)
Answer : B
28. In how many vertical columns (groups) are the elements in the Modern Periodic Table arranged?
(A) 15
(B) 16
(C) 17
(D) 18
Answer : D
29. 20 men take 10 days to complete a job working 12 hours a day. Find the number of men required to complete a job, twice as large, in 30 days working 8 hours a day.
(A) 15
(B) 30
(C) 25
(D) 20
Answer : D
30. As per the Indian census of 2011, the sex ratio (number of females per 1000 males) was approximately
(A) 910
(B) 920
(C) 940
(D) 960
Answer : C
31. The ratio of peak value of modulating signal to the peak value of carrier wave is known as
(A) modulation ratio
(B) modulation index
(C) modulation number
(D) modulation power
Answer : B
32. Hollow cylindrical parts are generally produced by
(A) die casting
(B) true centrifugal casting
(C) investment casting
(D) squeeze casting
Answer : B
33. The first term and the last term of an arithmetic progression are 9 and 69 respectively. If the sum of all the terms in 468, find the number of terms
(A) 12
(B) 11
(C) 14
(D) 13
Answer : A
34. If A stands for '+', B stands for'-', C stands for 'x', then what is the value of (10C4)A(4C4)B6 ?
(A) 54
(B) 56
(C) 52
(D) 50
Answer : D
35. Which material, out of the following, is not used for reinforcement in reinforced concrete?
(A) steel
(B) Copper
(C) glass fibre
(D) fibres of polymer
Answer : D
36. Forged crankshafts are widely used due to their
(A) Low Cost
(B) good look
(C) lighter weight and compact dimensions
(D) better ability to transfer heat
Answer : C
37. Plasma-arc welding is often used where deep and narrow welds are required. A plasma is a
(A) ionized hot gas
(B) beam of electrons
(C) beam of protons
(D) beam of alpha particles
Answer : B
38. Two cylinders A and B fitted with massless pistons contain equal amounts of an ideal diatomic gas at 300 K. The piston of A is free to move, while that of B is held fixed. The same amount of heat is given to the gas in each cylinder. If the rise in temperature of the gas in A is 30 K, then rise in temperature of the gas in B is
(A) 50K
(B) 42K
(C) 30K
(D) 18K
Answer : B
39. A byte represents a group of
(A) 8 bits
(B) 10 bits
(C) 22 bits
(D) 32 bits
Answer : A
40. The approximate flame temperature produced by oxy-acetylene flame is
(A) 2200 °C to 2500 °C
(B) 2600° C to 3000° C
(C) 3200 °C to 3500 °C
(D) 3700 °C to 4000 °C
Answer : D
41. Six boys A, B, C, D, E and F are sitting in a row facing towards north, C is sitting between A and E. D is not at the end. B is sitting immediate right to E. F is not at the right end. How many persons are there to the right of D?
(A) Two
(B) Three
(C) Four
(D) Five
Answer : C
42. If the arithmetic mean of 25, 27,31,35,39 and x is 38, find x
(A) 69
(B) 70
(C) 71
(D) 73
Answer : C
43. In India, the Jnanpith Award is a
(A) film award
(B) sports award
(C) science award
(D) literary award
Answer : D
44. How many terms are there in the series 201,208,215, 222......., 369?
(A) 23
(B) 25
(C) 27
(D) 29
Answer : B
45. In which months are the Kharif crops sown
(A) March-April
(B) June-July
(C) September-October
(D) November-December
Answer : B
46. A is 3 years older than B and 3 years younger than C, while B and D are twins. How many years older is C than D?
(A) 6
(B) 3
(C) 2
(D) equal in age
Answer : A
47. Which of the following countries is not in Asia?
(A) Kazakhstan
(B) Azerbaijan
(C) Tunisia
(D) Yemen
Answer: C
48. (10 X 0.2 X 0.2 X 0.1 X 10 )/(0.001 X 0.01 X 100 ) = ?
(A) 20
(B) 40
(C) 200
(D) 400
Answer : B
49. Fill in the blank:
Two-stroke internal combustion engines are used where low cost, compactness and ______ are of important considerations
(A) good look
(B) high volumetric efficient
(C) light weight
(D) high thermal efficiency
Answer : C
50. In a row of boys, Kamal is fifth from the left and Tarun is sixth from the when they exchange their positions, Kamal becomes thirteenth from the left What will be Tarun's position from the right?
(A) 10th
(B) 14th
(C) 16th
(D) 18th
Answer : C
51. A web page is a web document on the World Wide Web usually in
(A) MS - Excel
(B) MS - Access
(C) MS- DOS
(D) HTML format
Answer : D
52. When a spherical body of radius a, fells through a fluid of coefficient of viscosity η with a velocity v, the viscous drag force F is equal to
(A) 2π ηav
(B) 2 π η a2v
(C) 6 π η a2v
(D) 6 π η av
Answer : D
53. A horizontal force of 10 newton is necessary to just hold a block stationary against a vertical wall. The coefficient of friction between the block and the wall is 0.2. The weight of the block is
(A) 2 newtons
(B) 10 newtons
(C) 20 newtons
(D) 40 newtons
Answer : A
54. Which of the following states does not share boundary with Nepal
(A) Himachal Pradesh
(B) Bihar
(C) Uttar Pradesh
(D) Sikkim
Answer : A
55. Compared to induction motors, power factor of synchronous motors
(A) is lower
(B) may be higher or lower
(C) is same
(D) is better
Answer : A
56. Movement of information in the Internet is achieved via a system of interconnected computer networks that share data by using the
(A) standard internet protocol suite
(B) e-mail
(C) copper wires
(D) public switched telephone networks
Answer : C
57. In the 17th Asian Games held in the year 2014, total number of medals won by India was
(A) 57
(B) 47
(C) 53
(D) 59
Answer : A
58. Feeding connections in an ecological community is depicted by a
(A) food system
(B) food link
(C) food web
(D) ecological link
Answer : C
59. ‘poise’ is the unit of
(A) surface tension
(B) viscosity
(C) impulse
(D) Pressure
Answer : B
60. If a: b = 2 : 7; what is the value of (7a + 3b) / (2a + 2b) ?
(A) 18/35
(B) 35/18
(C) 37/18
(D) 7/4
Answer : B
61. Out of me following computer language, which was the first language to appear
(A) PASCAL
(B) C++
(C) Java
(D) FORTRAN
Answer : D
62. Tulsidas was a contemporary of
(A) Babar
(B) Akbar
(C) Shahjuhan
(D) Jahangir
Answer : B
63. A goat is tied to a comer of a square field of side 20 m with a rope of length 14 m Find the area of the square field that the goat cannot graze
(A) 287 sq. m
(B) 246 sq. m
(C) 226 sq. m
(D) 208 sq. m
Answer : B
64. First Indian to win an individual Olympic Gold
(A) Abhinav Bindra
(B) Sushil Kumar
(C) K.D. Jadhav
(D) Saina Nehwal
Answer : A
65. A car covers a certain distance at 90 km/hour speed and returns back to the starting point at 60 km/hour speed. Find its average speed for the entire journey
(A) 70 km/hour
(B) 72 km/hour
(C) 75 km/hour
(D) 80 km/hour
Answer : B
66. Fill in the blank:
The_______ summer monsoon from the Arabian sea and the Bay of Bengal bring rainfall to almost entire India
(A) north-west
(B) north-east
(C) south-west
(D) south-east
Answer : B
67. The treatment of the ore with suitable reagents which can selectively dissolve the ore but not the impurities, is known as
(A) leaching
(B) roasting
(C) smelting
(D) amalgamation
Answer : A
68. Which of the following is not a Computer Operating System
(A) MS-DOS
(B) COBOL
(C) WINDOWS
(D) LINUX
Answer : A
69. Fill in the blank :
_________ is zero-referenced against ambient air pressure
(A) Absolute pressure
(B) Gauge pressure
(C) Differential pressure
(D) Total pressure
Answer : B
70. The period of first five year plan was
(A) 1951-56
(B) 1952-57
(C) 1953-58
(D) 1954-59
Answer : A
71. Computer languages which can easily interact with the hardware, are called
(A) hard languages
(B) high level languages
(C) low level languages
(D) middle level languages
Answer : C
72. A screw gauge gives the following readings when used to measure the diameter of a wire Main scale reading: 0 mm
Circular scale reading: 52 divisions
Given that 1 mm on main scale corresponds to 100 divisions of the circular scale. The diameter of wire from the above data is
(A) 0.005 cm
(B) 0.026 cm
(C) 0.052 cm
(D) 0.52 cm
Answer : C
73. In P-type semiconductors, conduction of electricity is due to
(A) motion of holes
(B) motion of negative charges
(C) motion of electrons
(D) motion of electrons and holes
Answer : A
74. Many bacteria and protozoa simply divide into two or more daughter cells. This process is known as
(A) propagation
(B) fission
(C) budding
(D) fragmentation
Answer : B
75. Which of the following statements is NOT true about Microsoft Windows
(A) This is a series of operating systems
(B) Windows is written in FORTRAN language
(C) Multilingual support is built into windows
(D) Windows is used for personal computers
Answer : B
76. First woman judge of the supreme court of India was
(A) Leila Seth
(B) Cornelia Sorabji
(C) Anna Chandi
(D) M. Fathima Beevi
Answer : D
77. Find the length of the platform which a train 400 m long, travelling at 45 km/hour, can cross in 40 seconds
(A) 100 m
(B) 110 m
(C) 120 m
(D) 150 m
Answer : A
78. SI unit of thermal conductivity is
(A)(metre - kelvin)/watt
(B) watt/(metre - kelvin)
(C) watt/((metre)2 - kelvin)
(D) kelvin/(watt - metre )
Answer : C
79. 1400 is divided into 4 parts such that twice the first part, thrice the second part, 4 times the third part and 12 times the last part are all equal. Find the first part
(A) 500
(B) 550
(C) 600
(D) 650
Answer : C
80. A solid sphere and a solid hemisphere have the same radius. Find the ratio of their total surface areas
(A) 3 : 1
(B) 2 : 1
(C) 5 : 3
(D) 4 : 3
Answer : D
81. ‘Wings of Fire' is a book written by
(A) Dr A P J Abdul Kalam
(B) Khushwant Singh
(C) Vikram Seth
(D) Arundhati Roy
Answer : A
82. What is the capital of Mizoram
(A) Kavaratti
(B) Aizawl
(C) Kohima
(D) Imphal
Answer : B
83. Cranial nerves emerge from the
(A) brain
(B) central part of spinal cord
(C) lower part of spinal cord
(D) upper part of spinal cord
Answer : A
84. Out of the following, who is not related to the Revolt of 1857
(A) Rani Laxmi Bai
(B) Nana Saheb
(C) Gopal Krishan Gokhale
(D) Tantia Tope
Answer : C
85. Banks in India are required to hold a certain proportion of their deposits in the form of cash. This minimum ratio as stipulated by RBI is known as
(A) bank ratio
(B) repo rate
(C) bank rate
(D) Cash Reserve Ratio
Answer : D
86. A transistor cannot be used as
(A) amplifier
(B) rectifier
(C) oscillator
(D) both (A) and (C)
Answer : B
87. Ozone at the higher levels of the atmosphere is a product of
(A) infrared radiation acting on oxygen molecules
(B) infrared radiation acting on nitrogen molecules
(C) ultraviolet radiation acting on nitrogen molecules
(D) ultraviolet radiation acting on oxygen molecules
Answer : D
88. Which of the following Logic Gates may be called a Universal Logic Gate
(A) AND
(B) OR
(C) NOT
(D) NOR
Answer : D
89. Surface tension of a liquid is
(A) a force per unit area
(B) the surface energy per unit length
(C) the surface energy per unit area
(D) a force per unit volume
Answer : A
90. For production of ordinary Portland cement, to sinter the materials into clinker, materials are heated up to
(A) about 1400 °C - 1500 °C
(B) about 600 °C - 700 °C
(C) about 900 °C- 1000 °C
(D) about 300 °C - 400 °C
Answer : A
91. Polymers formed by direct addition of repeated monomers without elimination of any by-product product molecules are known as
(A) total polymers
(B) condensation polymers
(C) addition polymers
(D) long chain polymers
Answer : C
92. Rules of inheritance of traits in human beings were worked out by
(A) Miller
(B) Urey
(C) Mendel
(D) Haldane
Answer : C
93. The scores of Ashok and Raju are in the ratio 5:4. If the total score of Ashok and Raiu is 135 find Ashok’s score.
(A) 70
(B) 75
(C) 80
(D) 85
Answer : B
94. When a body is submerged in a fluid, the ratio of hydraulic stress to the corresponding hydraulic strain is called
(A) bulk modulus
(B) Compressibility
(C) shear modulus
(D) Young's modulus
Answer : A
95. (0.1 X 0.1 X 0.1 X 10 X 10 X 2 X 31)/(0.1 x 0.1 x 10) = ?
(A) 62
(B) 620
(C) 31
(D) 310
Answer : A
96. Intrinsic carrier concentration of silicon at room temperature is about
(A) 9.65 X 108/cm3 to 1.08 X 109/ cm3
(B) 9.65 X 109/ cm3 to 1.08 X 1010/ cm3
(C) 8.65 x 107/ cm3 to 1.01 x 108/ cm3
(D) 8.65 x 1011/ cm3 to 1.01 x I012/ cm3
Answer : A
97. Where all active programs and data of a computer are stored, so that they are readily available and easily accessed by the Central Processing Unit, that is known as
(A) read-only memory
(B) random added memory
(C) ready access memory
(D) random access memory
Answer : D
98. The normal term of office of a member of the Rajya Sabha is
(A) 3 years
(B) 4 years
(C) 5 years
(D) 6 years
Answer : D
99. The chord of the ellipse through its one focus and perpendicular to the major axis or parallel to the directrix, is called the
(A) auxiliary line of the ellipse
(B) perpendicular chord of the ellipse
(C) parallel chord of the ellipse
(D) latus rectum of the ellipse
Answer : D
100. The Supreme Court of India came into being in the year
(A) 1950
(B) 1951
(C) 1947
(D) 1948
Answer : A
101. Lattice energy of an ionic compound depends upon
(A) charge on the ion only
(B) packing of ions only
(C) size of the ion only
(D) charge on the ion and size of the ion
Answer : A
102. A diagram mat represents workflow or process, showing the steps as boxes of various kinds, and their order by connecting them with arrows, is known as a
(A) bar chart
(B) scatter diagram
(C) flow chart
(D) Venn diagram
Answer : C
103. L.M. Singhvi committee studied Panchayati Raj in the year
(A) 1986
(B) 1989
(C) 1980
(D) 1983
Answer : A
104. Each kidney has a large number of filtration units called
(A) fiitrons
(B) cup filters
(C) bladder
D) nephrons
Answer : D
105. Oxygen-rich blood from the lungs comes to the
(A) right atrium of the heart
(B) left atrium of the heart
(C) right ventricle of the heart
(D) septum of the heart
Answer : B
106. Fill in the blank:
Freshwater in the world is only about ______ of the total water available on this planet
(A) 0.5 %
(B) 1 %
(C) 2.5 %
(D) 4.5 %
Answer : C
107. Which of the following devices is not an output device
(A) visual display unit
(B) Plotter
(C) key board
(D) Printer
Answer : C
108. P-N junction diode is equivalent to a
(A) resistor
(B) OR logic gate
(C) capacitor
(D) NAND logic gate
Answer : D
109. If John's salary is 20 % less than that of Rita, then how much per cent is Rita's salary more than John
(A) 20 %
(B) 21 %
(C) 23 %
(D) 25 %
Answer : D
110. By operating at higher frequencies, transformers
(A) can be physically more compact
(B) will be heavier and bigger
(C) will operate with less core loss
(D) will be able to reduce conductor skin effect
Answer : A
111. Which of the following methods is not used to improve fatigue strength of manufactured products
(A) increasing surface roughness
(B) providing fine surface finish
(C) shot-peening
(D) roller burnishing
Answer : A
112. A solid spherical metal of radius 10 cm is made into 1000 smaller solid spheres of equal sizes melting. In this process, the total final surface area of the metal becomes X times the initial surface area. Then, X is equal to
(A) 1000
(B) 100
(C) 10
(D) 1
Answer : B
113. A family has a man, his wife, their four sons and their wives. The family of every son also has 2 sons and one daughter. Find out the total number of female members in the whole family
(A) 13
(B) 11
(C) 9
(D) 7
Answer : C
114. When a body is deformed, the elastic potential energy of the body is equal to
(A) 1/2 X (stress)2 X strain X volume
(B) 1/2 X stress X (strain)2 X volume
(C) 1/2 X stress X strain X (volume)2
(D) 1/2 X stress X strain X volume
Answer : D
115. Electric current induced within conductors by a changing magnetic field in the conductor, which flow in closed loops within conductors, is known as
(A) Lenz's current
(B) Fleming's current
(C) Eddy current
(D) secondary current
Answer : C
116. If a gas is heated against a pressure, keeping the volume constant, then the work done will be
(A) Positive
(B) Negative
(C) equal to zero
(D) equal to pressure x volume
Answer : C
117. The process by which absorption of radiation and emission of infrared radiation by gases in a planet's atmosphere warm its lower atmosphere, is known as
(A) gas effect
(B) radiation effect
(C) infrared effect
(D) Greenhouse effect
Answer : D
118. How many molecules of sulphur are present in 256 grams of sulphur (S8)
(A) 1.505 x 1023 molecules
(B) 2.007 x 1023 molecules
(C) 6.023 x 1023 molecules
(D) 12.046 x 1023 molecules
Answer : C
119. Raju purchased some goods for Rs 1800. He sold one-third of the goods purchased at 20 % loss. Find the profit percentage at which the rest of the goods must be sold to realize an overall profit of 20 %
(A) 30 %
(B) 35 %
(C) 40 %
(D) 50 %
Answer : C
120. The energy of thermal radiation u emitted per unit time by a blackbody of surface area A at temperature T(in absolute scale) is given by
u = σ AT4 (where σ = Stefan-Boltzmannconstant)
The above statement is
(A) Stefan-Boltzmann law
(B) Kirchhoff s law
(C) Wien's displacement law
(D) Prevost law
Answer : A
121. Rahim purchased three dozen oranges at Rs 10 per dozen, two dozen oranges at Rs 15 per dozen and five dozens Oranges at Rs 16 per dozen. Find the average cost per dozen of the oranges that he purchased
(A) Rs 14
(B) Rs 13
(C) Rs 12
(D) Rs 11
Answer : A
122. In orthographic projection, if the object lies between the observer and the plane of projection, it is called
(A) first angle projection
(B) second ingle projection
(C) third angle projection
(D) plane projection
Answer : A
123. The outer Himalayas, which form the foothills and lie between the middle Himalayas and the great Indian plains, an known as
(A) Himadri
(B) Himachal
(C) Mahendragiri
(D) Shiwalik
Answer : D
124. Working Principle of a Thermocouple is based on
(A) Huygens principle
(B) Prevost theory of exchange
(C) Newton's law of cooling
(D) thermoelectric effect
Answer : D
125. The strength of a beam section depends upon
(A) its length
(B) its sectional area
(C) its section modulus
(D) its weight
Answer : C
126. If a difference of temperature is maintained between the junctions of a circuit consisting of two different metallic conductors, an electric current is set up in the circuit. This is
(A) Peltier effect
(B) Thomson effect
(C) Seebeck effect
(D) Joule effect
Answer : D
127. PQRS is a rhombus such that diagonal PR = 32 cm and diagonal QS = 24 cm. Find the perimeter of the rhombus PQRS
(A) 60 cm
(B) 80 cm
(C) 84 cm
(D) 88 cm
Answer : B
128. Identify me wrong number in the series: 69,55,26,13, 5
(A) 69
(B) 26
(C) 13
(D) 5
Answer : A
129. Fill in the blank: Area wise, India is the _____ largest country in the world
(A) fifth
(B) Seventh
(C) eighth
(D) ninth
Answer : B
130. Dimensions of Inductance :
(A) length2 x mass x time2 x electric current-2
(B) length2 x mass2 x timer2 x electric current-2
(C) length2 x mass x electric current2 x time-2
(D) length2 x mass x time-2 x electric current-2
Answer : A
131. Out of the following, which place is famous for iron and steel industry
(A) Firozabad
(B) Bokaro
(C) Darjeeling
(D) Hathras
Answer : B
132 . Thermal pollution is the rise in the temperature of a natural water body caused by human influence. Elevated water temperature
(A) increases oxygen level
(B) decreases oxygen level
(C) does not affect oxygen level
(D) may increase or decrease oxygen level
Answer : B
133. The number of boys in a class is exactly three times the number of girls. Which one of the following numbers cannot represent the total number of children in the class
(A) 62
(B) 68
(C) 72
(D) 88
Answer : B
134. Diverting a small amount of the power generated by the generator to an electromagnetic field coil allows the generator to produce substantially more power. This concept is called
(A) feed-back excitation
(B) booster-excitation
(C) self-excitation
(D) supercharge-excitation
Answer : C
135. Fill in the blank : A silicon crystal doped with _______ results in a n-type semiconductor
(A) phosphorus
(B) Indium
(C) Boron
(D) Aluminium
Answer : A
136. Paradip port of India mainly handles
(A) food grains and steel
(B) iron ore and coal
(C) crude oil and petroleum
(D) edible oil
Answer : A
137. Fill in the blank :
____ operate so quickly that they limit the total energy that passes into the circuit after development of the fault, helping to protect downstream equipment from damage.
(A) Current-limiting fuses
(B) High voltage fuses
(C) High power fuses
(D) Glass cartridge fuses
Answer : A
138. The xylem in plants are responsible for
(A) transport of water
(B) transport of food
(C) transport of oxygen
(D) transport of amino acids
Answer : A
139. Fill in the blank:
Half-wave rectification requires _________ in a three-phase supply
(A) a single diode
(B) two diodes
(C) three diodes
(D) four diodes
Answer : A
140. Anil walks 10 km towards north. From there he walks 6 km towards south. Next, he walks 3 km towards east.
How far and in which direction is he with reference to his starting point?
(A) 5 km west
(B) 8 km west
(C) 5 km north-east
(D) 5 km south-east
Answer : C
141. computer virus is
(A) a hardware
(B) a computer program
(C) a client server
(D) a read-only memory
Answer : B
142. The younger, outermost wood, which is living wood in a growing tree, is known as
(A) soft wood
(B) outer wood
(C) white wood
(D) sap wood
Answer : D
143
The girders made up from separate structural steel plates by welding or riveting are known us
(A) web girders
(B) flange girders
(C) plate girders
(D) rolled girders
Answer : C
144. Electrical power plants utilizing coal are among the greatest contributors to gaseous pollutions that are responsible for
(A) Greenhouse effect
(B) decrease in nitrogen level
(C) decrease in water vapour
(D) acid rain
Answer : D
145. The ages of Ashok and Raju are in the ratio 5 : 7. Eight years ago, their ages were in the ratio 7 : 13. Find their present ages
(A) 15 years and 18 years
(B) 20 years and 28 years
(C) 10 years and 14 years
(D) 15 years and 21 years
Answer : D
146. Find the compound interest on Rs 14000 for 2 years at 5 % per annum
(A) Rs 1335
(B) Rs 1370
(C) Rs 1410
(D) Rs 1435
Answer : D
147. Which are the species found in dry forests and arid forests of India?
(A) teak, sal, bamboo
(B) bamboo, mahogany, rubber
(C) kikar, babool, date palm
(D) teak, mango, neem
Answer : A
148. The height of a cone is 40 cm. A small cone is cut off at the top of a plane parallel to its base. If its volume be (1/64) of the volume of the given cone. what is the height of the small cone
(A) 8 cm
(B) 10 cm
(C) 12 cm
(D) 14 cm
Answer : B
149. The junction diode, formed from a metal-semiconductor junction rather than a p-n junction, is known as
(A) Schottky diode
(B) metal diode
(C) Fleming diode
(D) Bose diode
Answer : A
150. The height of a triangle as well as its base are increased by 30 % . Find the percentage increase in its area
(A) 15 %
(B) 30 %
(C) 45 %
(D) 69 %
Answer : D
This is end of the RRB SSE question paper 2015 and its answer keys. If you need any solutions of these questions feel free to ask via comment or contact form. Thank you and happy exam.
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