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# RRB Junior Engineer Exam Paper 2014 Set-2

rrb je previous year paper

Exam Duration:  120
Number of Questions:   150
Total Marks:   150
Correct: 1 mark
Wrong:  0.33 Negative marks

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Q 1: When we open an internet site, we see ‘www’ What is full form of ‘www’?
Options:
1) World Wide Web
2) World Wide Word
3) Words Wise Web
4) None of these
Answer: World wide web

Q 2: The length of two trains are 140 m and 160 m respectively. If they run at the speed of 60km/h and 40km/h respectively in opposite directions on parallel tracks, the find the time in which they will cross each other.
Options:
1) 10 sec
2) 10.8 sec
3) 9 sec
4) 9.6 sec

Q 3: Transformer cores are laminated in order to :
Options:
1) Minimise eddy current loss
2) Reduce cost
3) Simplify its Constructions
4) None of these
Answer: Minimise eddy current loss

Q 4: Strain Gauge is used to convert:
Options:
1) Force into displacement
2) Mechanical displacement into change in resistance
3) Electric current into Mechanical displacement
4) Sound Energy into Electric Energy
Answer: Mechanical displacement into change in resistance

Q 5 If an object lies in third quadrant, its position with respect to reference planes will be:
Options:
1) In front of C.P., Above H.P
2) Behind V.P., Above H.P
3) In front of V.P., Below H.P
4) Behind V.P., Below H.P
Answer: Behind V.P., Below H.P

Q 6 The speed of sound in air is approximately equal to:
Options:
1) 3 X 108 m/sec
2) 330 m/sec
3) 5000 m/sec
4) 1500 m/sec

Q 7: When Ram and Mohan work together, they complete a work in 4days. If Ram alone can complete this work in 12days then in how many days Mohan alone can complete this work?
Options:
1) 10 days
2) 8 days
3) 6 days
4) 16 days

Q 8: What of the following is a prime number ?
Options:
1) 33
2) 87
3) 93
4) 97

Q 9: Find the missing term of the following series :

1. 4, 27, 16, ___, 36, 343

Options:
1) 25
2) 216
3) 64
4) 125

Q 10: Which country won the FIFA world cup, 2014 in Football?
Options:
1: Germany
2: Argentina
3: Brazil
4: France

Q 11: The slenderness ratio of a compression member is :
Options:
1) Effective length/Least radius of gyration
2) Actual length/Moment of inertia
3) Moment of inertia/Actual length
4) Actual length/Radius of gyration

Q 12: Who is the speaker of present Lok Sabha? (As on 01.11.2014)
Options:
1) Smt. Sumitra Mahajan
2) Smt. Sushma Swaraj
3) Smt. Meira kumar
4) None of these
Answer: Smt. Sumitra Mahajan

Q 13: The value of binary 1111 is :
Options:
1) 22
2) 23-1
3) 22
4) 24-1

Q 14: Who is the winner of Mens Singles Title in Tennis in US open, 2014?
Options:
1) Roger Federer
2) Kei Nishikori
3) Marin Cilic

Q 15: In which of the following movement did Gandhiji make the firest use of Hunger Strike as a weapon ?
Options:
1) Ahmedabad strike 1918
2) Rowlatt Satyagraha, 1919
3) Swadeshi Movement, 1905
4) Champaran Satyagraha, 1917

Q 16: Who wrote the book “Not Just An Accountant” published recently?
Options:
1) P.C. Parakh
2) Sanjay Baru
3) Vinod Rai
4) Natwar Singh

Q 17: The length of a bar is L metres. It extends by 2mm when a tensile force F is applied. Find the strain produced in the bar:
Options:
1) 0.002/L
2) 2/L
3) 0.2/L
4) L/0.002

Q 18: A four stroke petrol engine theoretically operates on :
Options:
1) Joule cycle
2) Otto cycle
3) Brayton cycle
4) Bell coleman cycle

Q 19: Find the value of :
Options:
1) 24
2) 14
3) 34
4) 16

Q 20: A man buys an article for Rs. 490 and sells it for Rs. 465.50. Find his loss percentage.
Options:
1) 4%
2) 4.5%
3) 5%
4) 5.5%

Q 21: If the cost of ‘x’ metres of wire is ‘d’ rupees, then what is the cost of ‘y’ metres of same wire?
Options:
1) yd/x
2) xd/y
3) xy/d
4) d/xy

Q 22: One side of a rectangular field is 15 metres. The length of diagonal of this rectangular field is 17 metres. Find the area of this rectangular field.
Options:
1) 120 m2
2) 60 m2
3) 255 m2
4) m2

Q 23: ‘When a body is wholly or partially, immersed in a fluid it experience an upthrust equal to the weight of the fluid displaced”. This is known as :
Options:
1) Pascal’s principle
2) Archimedes principle
3) Stoke’s law
4) Newton’s Laws of Motion

Q 24: Secretion of Insulin Hormone is by
Options:
1) Tyroid
2) Pituitary
4) Pancreas

Q 25: Earthworm belongs to which of the following Animal Phyla?
Options:
1) Arthropoda
2) Mollusca
3) Annelida
4) Protozoa
[sociallocker]
Q 26: If to, tp and tm are the optimistic, pessimistic and most likely time estimates of an activity respectively, then the expected time ‘t’ of the activity will be :
Options:
1) (to + tp + tm) / 3
2) (to + tp + 3tm) / 5
3) (to + tp + 2tm) / 4
4) (to + tp + 4tm) / 6
Answer: (to + tp + 4tm) / 6

27: Find the value of [(768)3 + (232)3]  / [(768)2 – (768 X 232) + (232)2] :
1)1000
2) 536
3) 500
4) 268

Q 28: For perfectly elastic bodies, the value of coefficient of restitution is :
Options:
1) zero
2) 0.5
3) 1.0
4) 0.25

Q 29: If 1st January, 2014 was Wednesday, then 29th December, 2014 will be :
Options:
1) Thursday
2) Monday
3) Saturday
4) Friday

Q 30: The thermal diffusivity of a substance is given by :
Options:
1) kr/c
2) k/rc
3) kc/r
4) rc/k
[Where k = Thermal conductivity; r= Mass density; c= Specific heat]

Q 31: Which of the following is biodegradable pollutant ?
Options:
1) DDT
2) BHC
3) Cotton cloth
4) Mercury

Q 32: Sachin is younger than Rahul by 4 years. If their ages are in the ratio of 7 : 9, then how old is Sachin ?
Options:
1) 14 Years
2) 21 Years
3) 18 Years
4) 25 Years

Q 33: Find the value of (1+2+3+4+- – – – – -+45) :
Options:
1) 2140
2) 2070
3) 1035
4) 1280

Q 34: When an object is cut by a section plane, parallel to H.P. and perpendicular to V.P., then the sectional view of the object is obtained in :
Options:
1) Top view
2) Front view
3) Left side view
4) Right side view

Q 35: The pressure exerted on the walls of container by a gas is due to the fact that Gas molecules:
Options:
1) Strike to the walls of the container
2) Lose their kinetic energy
3) Get accelerated towards the wall
4) Change their momentum due to collision with the wall.
Answer: Change their momentum due to collision with the wall.

Q 36: Which National Park is known for the ‘Asiatic Lions’ ?
Options:
1) Corbett National Park
2) Kanha National Park
3) Bandipur National Park
4) Gir National Park
Answer: Gir National Park

Q 37: Separation of water or sand or cement from a freshly mixed concrete is known as:
Options:
1) Segregation
2) Creeping
3) Bleeding
4) Flooding

Q 38: The relationship between Bulk density (y), Dry density (yd) and water content (w) for soil is :
Options:
1) y = yd(1 + w)
2) yd = y(1 + w)
3) y = yd/1 + w
4) y = yd/(1-w)
Answer: y = yd(1 + w)

Q 39: Which one of the following instruments will be used for measuring electric current?
Options:
1) Voltmeter
2) Ammeter
3) Ohmmeter
4) Wave meter

Q 40: In a certain code language, ‘HAND’ is written as ‘SZMW’, then what will be the code of ‘MILK’
Options:
1) ORNP
2) PNRO
3) NROP
4) RNOP

Q 41: Find the simple interest on Rs. 4800 at the rate of 81/2% per annum for a period of 2 years 3 months
Options:
1) Rs. 796
2) Rs. 816
3) Rs. 918
4) Rs. 990

Q 42: Choose the option which correctly shows the relationship between Modulus of Elasticity (E) ; Modulus of Righdity (C) and Bulk Modulus (K):
Options:
1) E = (KC)/(K + C)
2) E = (2KC)/(2K + C)
3) E = (9KC)/(3K + C)
4) E = (3KC)/(K + 2C)
Answer: E = (9KC)/(3K + C)

Q 43: The term ‘ Operating System’ means :
Options:
1) A set of programmes which controls computer working
2) The way a computer operator works
3) Conversion of high level language into machine level language
4) None of these
Answer: A set of programmes which controls computer working

Q 44: Which of the following is not a cold working process ?
Options:
1) Extrusion
2) Slitting
3) Blanking
4) Lancing

Q 45: The famous chinese pilgrim ‘Hieun Tsang’ visited India during the reign of :
Options:
1) Harshavardhan
2) Chandragupta II
3) Ashoka
4) Kanishka

Q 46: The language which a computer can understand is ;
Options:
1) High Level Language
2) Machine Language
3) Assembly Language
4) All of these

Q 47: The property of material by which it can be rolled into sheets is called:
Options:
1) Elasticity
2) Plasticity
3) Ductility
4) Malleability

Q 48: Schmitt trigger is also known as :
Options:
1) Sweep circuit
2) Blocking oscillator
3) Squaring circuit
4) Stable multi vibrator

Q 49: A triac is a
Options:
1) Two terminal bi-directional switch
2) Three terminal bi-directional switch
3) Two terminal uni-directional switch
4) Three terminal uni-directional switch
Answer:  Three terminal bi-directional switch

Q 50: Cyclo converter converts ;
Options:
1) AC to DC
2) DC to AC
3) A fixed AC to a variablele magnitude AC
4) A fixed DC to a variable magnitude DC
Answer: A fixed AC to a variable magnitude AC

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Q 51: Which one of the following is not a scalar quantity?
Options:
1) Volume
2) Mass
3) Force
4) Length

Q 52: In a well conditioned triangle, no angle should be less then :
Options:
1) 60o
2) 50o
3) 30o
4) 45o

Q 53: The reduced bearing of a line is N 87o W. Its whole circle bearing is :
Options:
1) 273o
2) 3o
3) 93o
4) 87o

Q 54: The resultant of two forces P and Q acting at an angle θ is given by :
Options:
1) √(P2 + Q2 + 2PQ tanθ)
2) √(P2 + Q2 + 2PQ sinθ)
3) √(P2 + Q2 + 2PQ cosθ)
4) P2 + Q2 + 2PQ tanθ
Answer:  √(P2 + Q2 + 2PQ cosθ)

Q 55: Primary storage in computer terminology refers to :
Options:
1) Hard Disc Drive
2) Random Access Memory (RAM)
3) Read Only Memory (ROM)
4) The storage device where the operating system is stored
Answer:  Random Access Memory (RAM)

Q 56: In an examination, a student gets 4 marks for every correct answer and loses 1 mark for every wrong answer. If her attempts in all 60 questions and secures 130 marks, then fine the number of questions he attempted correctly.
Options:
1) 42
2) 48
3) 36
4) 38

Q 57: The Fundamental Duties of the Indian Citizens are incorporated in the following Artice of our constitution?
Options:
1) Article 21 A
2) Article 51 A
3) Article 370 A
4) Article 19 A
Answer:  Article 51 A

Q 58: If x/y =9/5, then find the value of (x2 + y2)/(x2 – y2)
Options:
1) 11
2) 61/11
3) 11/5
4) 6

Q 59: Which device changes the alternatting e.m.f. generated by the D.C. Generator in its armature coil to D.C. ?
Options:
1) Slipring
2) Rectifier
3) Commutator
4) None of these

Q 60: A simply supported beam of length L is loaded with a uniformly distributed load of w per unit length. The maximum bending moment will be:
Options:
1) wL2 /4
2) wL2 /8
3) wL2 /2
4) wL2

Q 61: Jama Masjid at Delhi was built by:
Options:
1) Akbar
2) Jahangir
3) Shah Jahan
4) Aurangzeb

Q 62: Arrange the fractions 3/5. 4/7, 8/9 and 9/11 in their descending order :
Options:
1) 8/9 > 9/11 > 3/5 > 4/7
2) 9/11 > 8/9 > 4/7 > 3/5
3) 3/5 > 4/7 > 8/9 > 9/11
4) 4/7 > 8/9 > 3/5 > 9/11
Answer:  8/9 > 9/11 > 3/5 > 4/7

Q 63 Find the average of all prime numbers between 30 and 50 :
Options:
1) 48
2) 39
3) 39.8
4) 38

Q 64: Acyclotron is a :
Options:
1) Bunch of Gamma Rays
2) High Frequency Oscillator
3) Particle Accelerator
4) None of these

Q 65: Who is the winner of Nobel Prize, 2014 in the field of Economics ?
Options:
1) Patrick Modiano
2) MAlala Yousafzai
3) Jean Tirole
4) Kailash Satyarthi

Q 66: The Indian Standard Time(I.S.T.) is ahead of Greenwich Mean Time (G.M.T.) by :
Options:
1) 6. hours
2) 5 hours
3) 6 hours 30 minutes
4) 5 hours 30 minutes
Answer:  5 hours 30 minutes

Q 67: Which of the following processes is generally used for mass producation of connecting rod of Auromobile Engines ?
Options:
1) Sand Casting
3) Forging
4) Spinning

Q 68: The load which does not change its magnitude and position with time is called
Options:

Q 69: A byte is group of :
Options:
1) 2 bits
2) 4 bits
3) 8 bits
4) 16 bits

Q 70: If log8 x = 2/3, then the value of ‘x’ is :
Options:
1) 16/3
2) 4/3
3) 12
4) 4

Q 71: ________ will translate the complete programme at once from a high level language to the machine language.
Options:
1) Compiler
2) Assembler
3) Joystick
4) Bus

Q 72: Pipe ‘P’ can fill a tank in 36 hours and pipe ‘Q’ can fill this tank in 45 hours. If both the pipes are opened simultaneously, then how much time will be taken to fill this tank ?
Options:
1) 20 hours
2) hours
3) 9 hours
4) 42 hours

Q 73: Find out the term which is different from other terns in the following :
22, 33, 66, 99, 121, 279, 594
Options:
1) 99
2) 121
3) 279
4) 594

Q 74: A CRO can display:
Options:
1) D.C. signals only
2) A.C. signals only
3) Both D.C and A.C. signals
4) Time – invariant signals
Answer:  Both D.C and A.C. signals

Q 75: The ‘Quit India Movement’ was launched in the year:
Options:
1) 1920 A.D.
2) 1930 A.D.
3) 1942 A.D.
4) 1946 A.D.

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Q 76: If a thin rectangular plate of 60 mm X 30 mm is inclined at an angle of 60o to the Horizontal Plane, its top view may be :
Options:
1) Square of 30 mm size
2) Square of 60 mm size
3) Rectangle of 60 mm X 45 mm size
4) Rectangle of 45 mm X 30 mm size
Answer:  Square of 30 mm size

Q 77: A file which contains transient data to be processed in combination with master file is called:
Options:
1) Sequential file
2) Master file
3) Random organization file
4) Transmission file

Q 78: Find the missing them of the following series :
BZA, DYX, FXE, ______, JVL.
Options:
1) HWG
2) HUG
3) WHG
4) GUH

Q 79: Who is the President of China ? (As on 01.11.2014)
Options:
1) Li Keqiang
2) Xi Jinping
3) Shinzo Abe
4) Hu Jintao

Q 80: Zeroth Law of thermodynamics forms the basis of __________ measurement.
Options:
1) Pressure
2) Temperature
3) Work
4) Momentum

Q 81: Who wrote ‘ Indica’ ?
Options:
1) Kautilya
2) Kalidasa
3) Shudraka
4) Magesthenes

Q 82: Red rot is a plant disease which affects:
Options:
1) Wheat
2) Rice
3) Sugarcane
4) Cotton

Q 83: Which one of the following is also known as Red Planet ?
Options:
1) Mercury
2) Venus
3) Earth
4) Mars

Q 84: Find the angle between the hour hand and the minute hand of a clock when the time is 10.25 hours i.e., 25 minutes pass 10 ?
Options:
1) 180o
2) 165o
3) 4) Answer: Q 85: Which of the following Amplifiers produces the least distortion ?
Options:
1) Class A
2) Class B
3) Class AB
4) Class C

Q 86: What is 15 % of 34 kg ?
Options:
1) 3.4 kg
2) 3.75 kg
3) 4.50 kg
4) 5.10 kg

Q 87: Who is the Chief Minister of Tamil Nadu ? (As on 0.1.11.2014)
Options:
1) Mr. O. Pannerselvam
2) Mr. J. Jayalalitha
3) Mr. Karunanidhi
4) Mr. Dayanidhi Maran
Answer:  Mr. O. Pannerselvam

Q 88: Which of the following is a universal gate ?
Options:
1) AND
2) NAND
3) OR
4) NOR

Q 89: Who is the Chairperson of National Commission for Women in India ? (As on 01.11.2014)
Options:
1) Jayanti Patnaik
2) Girija Vyas
3) Mamta Sharma
4) Lalitha Kumaramangalam

Q 90: BOD(Bio Chemical Oxygen Demand) of safe drinking water must be :
Options:
1) 0
2) 50 ppm
3) 100 ppm
4) 200 ppm

Q 91: In an examination, 35% of the students passed and 455 failed. How many students appeared for the examination?
Options:
1) 700
2) 1300
3) 845
4) 1250

Q 92: Pointing to a man in a photograph, Asha said, ” His mother’s only daughter is my mother”. How is the man related to Asha ?
Options:
1) Brother
2) Maternal Uncle
3) Grand father
4) Father

Q 93: Galena is an ore of :
Options:
2) Copper
3) Aluminium
4) Iron

Q 94: Which of the following is a presentation graphics software?
Options:
1) MS Windows
2) MS Word
3) MS Excel
4) MS PowerPoint

Q 95: Boyle’s ;aw states that :
1) The pressure of a gas varies directly with temperature at constant volume i.e. Pat.
2) The product of pressure and volume of a given mass of as gas is constant at constant temperature i.e. PV = constant.
3) The volume of a gas varies directly with temperature at constant pressure i.e. VaT.
4) The pressure of a gas varies directly with volume at constant temperature i.e. PaT.
Answer:  The product of pressure and volume of a given mass of as gas is constant at constant temperature i.e. PV = constant.

Q 96: Weld spatter is a/an :
Options:
1) Flux
2) Electrode
3) Welding defect
4) None of these

Q 97: The nucleus of an atom generally, contains :
Options:
1) Protons and Neutrons
2) Protons and Electrons
3) Electrons and Neutrons
4) Only Neutrons
Answer:  Protons and Neutrons

Q 98: The dimensions of a brick are 10 cm X 4 cm X 3cm. What is the total surface area of the brick ?
Options:
1) 82 cm2
2) 164 cm2
3) 120 cm2
4) 180 cm2

Q 99: A bullet is fired vertically upwards with a velocity of 196 m/sec. What is the maximum height reached by the bullet ? (Assuming g = 9.8 m/seccm2)
Options:
1) 1960 m
2) 196 m
3) 980 m
4) 490 m

Q 100: With which of the following, the intrinsic semi conductor Silicon be doped in order to obtain p-type semi-conductor ?
Options:
1) Boron
2) Phosphorus
3) Gallium
4) None of these

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Q 101: What has it maximum density at :
Options:
1) 0 oC
2) 100 oC
3) 50 oC
4) 4 oC

Q 102: Compiler and interpreters are examples of :
Options:
1) System software
2) Application software
3) Both (A) and (B)
4) None of these

Q 103: ‘Giddha’ is a folk dance of :
Options:
1) Punjab
3) Assam
4) Maharashtra

Q 104: The entropy of universe tends to be :
Options:
1) Minimum
2) Zero
3) Average
4) Maximum

Q 105: The angle of elevation of a ladder leaning a against a wall is 60o i.e. ladder makes an angle of 60o with the ground. The foot of the ladder is 4.6 metres away from the wall. What is the length of this ladder ?
Options:
1) 9.2 m
2) 2.3 m
3) 6.9 m
4) 7.8 m

Q 106: The total number of bones in the average adult human skeleton is :
Options:
1) 350
2) 206
3) 115
4) 540

Q 107: A 4 – pole, 1500 r.p.m. alternator will generate e.m.f. at :
Options:
1) 20 Hz
2) 60 Hz
3) 40 Hz
4) 50 Hz

108: Disinfection of drinking water is done to remove :
Options:
1) Odour
2) Bacterias
3) Turbidity
4) Colour

Q 109: A conductor of axial length 30 cms carries a current of 100 A and lies at right angle to a magnetic field of strength 0.4 tesla. What is the force exerted on it ?
Options:
1) 10 N
2) 12 N
3) 1.2 N
4) 0

Q 110: The Headquarters of West Central Railway is located at :
Options:
1) Jabalpur
2) Jaipur

Q 111: Ampere second is the unit of :
Options:
1) Charge
1) Power
2) Voltage
4) Energy

Q 112: Find the missing tern of the following series : 4, 7 ,12, ___, 28, 39
Options:
1) 17
2) 18
3) 21
4) 19

Q 113: Identify the city which faced large scale destructions due to ‘Hudhud’ cyclone recently?
Options:
1) Chennai
2) Visakhapatnam
3) Kolkata

Q 114: A gate in which all inputs must be high to get low output is :
Options:
1) An inverter
2) AND gate
3) NOR gate
4) NAND gate

Q 115: The area of an equilateral triangle is 24√3 cm2. What is the perimeter of the equilateral triangle ?
Options:
1) 96 cm
2) 4√6 cm
3) 12√6 cm
4) 6√6 cm

Q 116: Global warming is caused by :
Options:
1) N2
2) CO2
3) Ozone
4) None of these

Q 117: In sand Moulding the top flask is known as :
Options:
1) Cope
2) Drag
3) Check
4) Fillet

Q 118: The United Nations Day (U.N.Day) is celebrated every year on :
Options:
1) Dec 26
2) Nov 14
3) Sept 5
4) Oct 24

Q 119: For which of the following applications, a D.C. motor is preferred over an A.C. Motor?
Options:
1) Variable speed operation
2) High speed operation
3) Low speed operation
4) Fixed speed operation
Answer: Variable speed operation

Q 120: Projection of an object shown by three views is known as :
Options:
1) Perspective
2) Oblique
3) Orthographic
4) None of these

Q 121: Fins are provided on heat transferring surface in order to increase :
Options:
1) Heat transfer area
2) Heat transfer coefficient
4) Mechanical strength of the equipment
Answer:  Heat transfer area

Q 122: A transformer has 1000 primary turns. It is connected to 250 volts A.C. supply. Find the number of secondary turns to get secondary voltage of 400 volts.
Options:
1) 1600
2) 625
3) 100
4) 1250

Q 123: Find the L.C.M. of 148 and 185.
Options:
1) 680
2) 740
3) 2960
4) 3700

Q 124: What is the General formula of Alkanes ?
Options:
1) CnH2n+2
2) CnH2n
3) CnH2n-2
4) CnH2n+4

Q 125: The sum of two numbers is 40 and the difference of these two numbers is 4. Find the ratio of these of numbers,
Options:
1) 11 : 9
2) 11 : 18
3) 22 : 9
4) 17 : 13
Answer:  11 : 9

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Q 126: ‘The Servants of India Society’ was founded by :
Options:
1) Jyotiba Phule
2) G.K. Gokhale
3) B.G. Tilak
4) B.R. Ambedkar

Q 127: Power Loss in a resistor is given by :
Options:
1) P = V2R
2) P = V/I
3) P = I2/R
4) P = V2/R
Answer:  P = V2/R

Q 128: The Pollutant responsible for ozone holes is:
Options:
1) CO2
2) CO
3) SO2
4) CFC

Q 129: With the formation of Telangana, how many States are there in our country now?
Options:
1) 30
2) 29
3) 28
4) 31

Q 130: IF 22n-1 = 1/8n-3 , then the value of ‘n’ is :
Options:
1) 3
2) 2
3) 0
4) -2

Q 131: Goutam Buddha delivered his first sermons at :
Options:
1) Kusinagar
2) Sarnath
3) Pataliputra
4) Vaishali

Q 132: Ravi runs 200 metres in 24 seconds. Find his average speed :
Options:
1) 20 km/h
2) 24 km/h
3) 28.5 km/h
4) 30 km/h

Q 133: How many terms are these in the following series ?
201, 208, 2015, …….., 369.
Options:
1) 26
2) 25
3) 24
4) 23

Q 134: If a point moves in a plane in such a way that the sum of its distances from two fixed points is constant, the curve so traced is called :
Options:
1) Parabola
2) Ellipse
3) Hyperbola
4) All of these

Q 135: Ammonia is prepared commercially by the :
Options:
1) Oswald process
2) Hall process
3) Contact process
4) Haber process

Q 136: Lokprivya Gopinath Bardoloi International Airport is located at :
Options:
1) Jaipur
2) Bangalore
3) Guwahati

Q 137: The elements which have same mass number but different atomic numbers are known as:
Options:
1) Isotones
2) Isobars
3) Isotopes
4) Halogens

Q 138: Which one of the following is not a Noble Gas?
Options:
1) Helium
2) Bromine
3) Argon
4) Neon

Q 139: The BIS code which deals with steel structures is :
Options:
1) BIS : 456
2) BIS : 800
3) BIS : 875
4) BIS : 1893
Answer:  BIS : 800

Q 140: To be eligible for elected as president, a candidate must be :
Options:
1) Over 25 years of age
2) Over 30 years of age
3) Over 35 years of age
4) Over 60 years of age
Answer:  Over 35 years of age

Q 141: At what temperature, both Celsius and Fahrenheit scales will show the identical readings ?
Options:
1) 100o
2) 0o
3) -40o
4) 40o

Q 142: Time constant of a series R-L Circuit is :
Options:
1) LR seconds
2) L/R seconds
3) L2R seconds
4) LR2 seconds

Q 143: A capacitor stores 1 coulomb at 10 volts. It capacitance is (f = farad) :
Options:
1) 1 f
2) 10 f
3) 0.1 f
4) 0.01 f

Q 144: M.C. (Moving Coil) and M.I. (Moving Iron) type of instruments can be distinguished by their :
1) Range
2) Size of terminals
3) Pointer
4) Scale

Q 145: Which of the following flip-flops is used as Latch ?
Options:
1) JK flip-flop
2) RS flip-flop
3) D flip-flop
4) T flip-flop

Q 146: Identify the disease which is caused due to deficiency of Protein ?
Options:
1) Scurvy
2) Beri-Beri
3) Night-Blindness
4) Kwashiorkor

Q 147: Hopkinson’s test for D.C. motors is conducted of :
Options:

Q 148: If fineness Modulus of sand is 2.5, it is graded as :
Options:
1) Medium sand
2) Fine sand
3) Coarse sand
4) Very coarse sand

Q 149: Large scale deforestation decreases :
Options:
1) Soil Erosion
2) Rain fall
3) Drought
4) Global warming

Q 150: Hot Wire Instruments read :
Options:
1) Peak value
2) Average
3) R.m.s. value
4) None of these