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RRB Senior Section Engineer Exam Paper 2015 Shift- 4

 RRB Senior section engineer (SSE)

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

Q 1: The area under the T-s diagram curve at any thermodynamic process represents_____
1) Heat rejected only
2) Heat absorbs only
3) Work done during the process
4) Heat absorbed and rejected
Answer: Heat absorbed and rejected

Q 2: Which one of the following is correct ?

     The cyclic integral of (δQ – δW) for a process is:
1) Positive
2) Negative
3) Zero
4) Unpredictable
Answer: Zero

Q 3: The fundamental unit of enthalpy is:
1) MLT-2
2) ML-2T-1
3) ML2T-2
4) ML3T-2
Answer: ML2T-2

Q 4: Units for thermal conductivity:
1) J/kg.K
2) J/mol.K
3) J.ohm/sec.K2
4) W/m.K
Answer: W/m.K

Q 5: In which one of the following materials, is the heat eaergy propagation minimum due to conduction heat transfer ?
1) Lead
2) Copper
3) Water
4) Air
Answer: Air

Q 6: On heat transfer surface, fins are provided
1) To Increase temperature gradient so as to enhance heat transfer
2) To Increase turbulence in flow for enchancing heat transfer
3) To increase surface area to promote the rate of heat transfer
4) To decrease the pressure drop of the fluid
Answer: To increase surface area to promote the rate of heat transfer

Q 7: Which type of engine is used in heavy commercial vehicle
1) Diesel
2) Petrol
3) Compressed air
4) LPG
Answer: Diesel

Q 8: Stroke of engine is
1) Volume of the cylinder
2) Length of the connecting rod
3) Internal dia of cylinder
4) Distance between TDC and BDC
Answer: Distance between TDC and BDC

Q 9: For the same compression ratio and the same heat input. The correct sequence of the increasing order of the thermal efficiencies of the given cycles is
1) Otto, Diesel, Dual
2) Diesel, Dual, Otto
3) Dual, Diesel, Otto
4) Dual, Otto, Diesel
Answer: Diesel, Dual, Otto

Q 10: Function of turbocharger is
1) To increase the power
2) To decrease the thermal efficiency
3) To reduce the noise
4) To reduce fuel consumption
Answer: To increase the power

Q 11: The casting process which is probably responsible for the largest volume of castings produced is the……..process.
1) Permanent mould casting
2) Die casting
3) Centrifugal casting
4) Sand casting
Answer: Die casting

Q 12: The most important factor for specifying the lathe machine is
1) The maximum diameter of the work it will swing
2) The length of bed
3) The maximum speed of the spindle
4) Height of the bed
Answer: The maximum diameter of the work it will swing

Q 13: The empty portion of cupola above the preheating zone is called as
1) Slack
2) Brow
3) Billet
4) Stack
Answer: Stack

Q 14: Metal deposited on to the work piece from the electrode
1) Is forced across the arc
2) Fall because of gravity
3) Is attracted towards the work piece due to the positive polarity of the work piece
4) Is attracted towards the work piece due to the negative polarity of the work piece
Answer: Is forced across the arc

Q 15: If a transformer has 50 turns in the primary winding and 10 turns in the secondary winding. What is the reflective resistance if the secondary load resistance is 250Ω ?
1) 250 Ω
2) 25 Ω
3) 6,250 Ω
4) 62,500 Ω
Answer: 6,250 Ω

Q 16: In a d.c. motor, unidirectional torque is produced with the help of
1) Brushes
2) Commutator
3) End-plates
4) both (a) and (b)
Answer: both (a) and (b)

Q 17: The counter e.m.f. of a d.c. motor
1) Often exceeds the supply voltage
2) Aids the applied voltage
3) Helps in energy conversion
4) Regulates its armature voltage
Answer: Helps in energy conversion

Q 18: The normal value of the armature resistance of a d.c. motor is
1) 0.005
2) 0.5
3) 10
4) 100
Answer: 0.5

Q 19: The Eb/V ratio of d.c. motor is an Indication of its
1) Efficiency
2) Speed regulation
3) Starting torque
4) Running Torque
Answer: Efficiency

Q 20: The mechanical power developed by the armature of a d.c. motor is equal to
1) Armature current multiplied by back e.m.f.
2) Power input minus losses
3) Power Output multiplied by efficiency
4) Power output plus iron losses
Answer: Armature current multiplied by back e.m.f.

Q 21: The induced e.m.f. in the armature conductors of a d.c. motor is
1) Sinusoidal
2) Trapezoidal
3) Rectangular
4) Alternating
Answer: Sinusoidal

Q 22: The EMF equation e = Nωrφsinωrt is applicable to
1) AC systems with time variant field flux
2) DC systems with variant field flux
3) Both AC and DC systems with time invariant field flux
4) Both AC and DC systems with time variant field flux
Answer: Both AC and DC systems with time invariant field flux

Q 23: In AC rotating machines, the generated or speed EMF
1) Leads φ by 90o
2) Lags φ by 90o
3) Is in phase with working flux
4) Lags φ by 180o
Answer: Lags φ by 90o

Q 24: In an AC machine, the effect of distributing the turns in different slots, results in a further reduction of generated EMF by the factor kd . This factor is called
1) Distribution/speed factor
2) Coil pitch factor
3) Winding factor
4) Generation factor
Answer: Distribution/speed factor

Q 25: Which of the following is not a Property of an Amplifier ?
1) Gain
2) Linearity
3) Distortion
4) Loss
Answer: Loss
Q 26: Zener diodes are used as:
1) Current regulators
2) Voltage regulators
3) RF detectors
4) AF detectors
Answer: Voltage regulators

Q 27: One important application for diodes is recovering information from transmitted signals. This is referred to as:
1) Regeneration
2) Ionization
3) Biasing
4) Demodulation
Answer: Demodulation

Q 28: The electrodes of a semi-conductor diode are known as:
1) Gate and source
2) Anode and Cathode
3) Collector and base
4) Cathode and drain
Answer: Anode and Cathode

Q 29: What semi-conductor device glows red, yellow, or green, depending upon its chemical composition ?
1) A light-emitting diode
2) A fluorescent bulb
3) A neon bulb
4) A vacuum diode
Answer: A light-emitting diode

Q 30: A transistor can be destroyed in a circuit by:
1) Excessive heat
2) Excessive light
3) Saturation
4) Cut-off
Answer: Excessive heat

Q 31: The two basic types of fields effect transistors (FET) are:
1) NPN and PNP
2) Germanium and silicon
3) Inductive and capacitive
4) N and P channel
Answer: N and P channel

Q 32: Which component can amplify a small signal but must use high voltages ?
1) A vacuum tube
2) A transistor
3) An electrolytic capacitor
4) A multiple-cell battery
Answer: A vacuum tube

Q 33: The diode is an important part of a simple power supply. It converts AC to DC, since it:
1) Has a high resistance to AC but not to DC
2) Allows electrons to flow in only one direction from cathode to anode
3) Has a high resistance to DC but not to AC
4) Allows electrons to flow in only one direction from anode to cathode
Answer: Allows electrons to flow in only one direction from cathode to anode

Q 34: If two equal-value capacitors are connected in parallel, whaat is their capacitance ?
1) The same value of either capacitor
2) The value of one capacitor times the value of the other
3) Half the value of either capacitor
4) Twice the value of either capacitor
Answer: Twice the value of either capacitor

Q 35: According to IS 516, what is the minimum number of specimen to be tested for estimating the compressive strength
1) 2
2) 3
3) 4
4) 5
Answer:  3

Q 36: A layer of wood formed during one year’s growth in a timber is called as
1) Bark
2) All-heart
3) Batch
4) Annual ring
Answer: Annual ring

Q 37: In general, consolidation of soil involves which of the following
1) Expulsion of air
2) Reduction in the shear stress of soil
3) Application of static load
4) Application of dynamic load
Answer: Application of static load

Q 38: The time period for which a structure or a structural element is required to perform its function without damage is called as
1) Loading period
2) Design life
3) Life cycle of that structure
4) Serviceability duration
Answer: Design life

Q 39: If a 6m high retaining wall retains dry sand of unit weight 18 kN/cubm and if the coefficient of at-rest earth pressure is 0.5, then the lateral earth pressure at a depth of 6m will be.
1) 54
2) 9
3) 108
4) 36
Answer: 54

Q 40: In general, the coefficient of thermal expansion of concrete does not depend on which of the following factors
1) Type of cement
2) Type of aggregate
3) The cement content
4) The quality of water
Answer: The quality of water

Q 41: Which of the following is not applicable to limit state method ?
1) The stresses are obtained from design loads and compared
2) The method follows linear stress-strain behavior of both the materials i.e. steel and concrete
3) The ultimate stresses of the materials are used as allowable stresses
4) Partial safety factors are used
Answer: The method follows linear stress-strain behavior of both the materials i.e. steel and concrete

Q 42: Which of the following does not fall under tensioning devices used for prestressed concrete ?
1) Chemical
2) Thermal
3) Hydraulic
4) Rotating
Answer: Rotating

Q 43: Which of the following is not a non-destructive test used for concrete ?
1) Rebound hammer
2) Pull-out
3) Ultra-sonic
4) Direct tensile test
Answer: Direct tensile test

Q 44: In surveying, the triangles having angles smaller than 30 degree are called as
1) Ideal triangles
2) Well-conditioned triangles
3) llI-conditioned triangles
4) Acute triangles
Answer: llI-conditioned triangles

Q 45: A liquid undergoing a rigid body rotation in a container is said to have
1) Forced vortex motion
2) Circulation
3) Free vortex motion
4) Translation
Answer: Forced vortex motion

Q 46: Cavitation is primarily associated with which of the following fluid properties
1) Specific gravity
2) Surface tension
3) Viscosity
4) Vapour pressure
Answer: Vapour pressure

Q 47: Heating effect of current is used in
1) Ammeters
2) Voltmeters
3) Both ammeters and voltmeters
4) Wattmeters
Answer: Both ammeters and voltmeters

Q 48: The instrument used to check insulation of household wiring is
1) Megger
2) Ohmmeter
3) Multimeter
4) High resistance voltmeter
Answer: Megger

Q 49: If A = 629 ± 8 and B = 131 ± 3, A – B with range of doubt is
1) 498 ± 8
2) 498 ± 4
3) 498 ± 11
4) 498 ± 13
Answer: 498 ± 11

Q 50: Which of these instruments has highest power consumption ?
1) Dynamometer
2) Electrostatic
3) Moving coil
4) Hot wire
Answer: Hot wire
RRB Senior Section Engineer Exam Papers (www.newtondesk.com)
Q 51: A power factor meter has
1) One current and one pressure circuit
2) One current circuit and two pressure circuits
3) Two current circuits and two pressure circuits
4) Two current circuits and one pressure circuit
Answer: One current circuit and two pressure circuits

Q 52: In final stage of ecological succession dynamic balance between species and physical environment takes place, which is called
1) Progressive ecosystem
2) Ideal ecosystem
3) Stable ecosystem
4) Climax ecosystem
Answer: Climax ecosystem

Q 53: The major portion of the alkalinity in natural waters is caused by
1) Hydroxide, carbonate and bicarbonate
2) Hydroxide, phosphate and bicarbonate
3) Silicate, ammonia and bicarbonate
4) Hydroxide, ammonia and carbonate
Answer: Hydroxide, carbonate and bicarbonate

Q 54: When a particle is suspended in water, two forces are acting on it, which are
1) Gravity and drag force
2) Gravity and buoyant force
3) Buoyant and drag force
4) Viscous and buoyant force
Answer: Gravity and buoyant force

Q 55: Chlorofluorocarbons are
1) Bad absorber of infrared radiations
2) Good reflector of ultraviolet radiations
3) Good absorber of ultraviolet radiations
4) Good absorber of Infrared radiations
Answer: Good absorber of ultraviolet radiations

Q 56: If the statistical distribution of noise levels in terms of L1, L10, L50, L90 are given, the equivalent noise levels, Leq can be estimated as
1) Leq = L90 + (L10 – L60)2 / 60
2) Leq = L50 + (L10 – L90)2 / 60
3) Leq = L10 + (L10 – L90)2 / 60
4) Leq = L60 + (L10 – L90)2 / 60
Answer: Leq = L50 + (L10 – L90)2 / 60

Q 57: The glasses of artificial green house are
1) Transparent to incoming solar radiation but opaque to outgoing infrared radiation
2) Opaque to incoming infrared radiation but transparent to outgoing infrared radiation
3) Opaque to incoming solar radiation as well as outgoing infrared radiation
4) Opaque to incoming solar radiation but transparent to out going infrared radiation
Answer: Transparent to incoming solar radiation but opaque to outgoing infrared radiation

Q 58: Accumulator is an integral component of
1) CPU
2) Hard Disk
3) RAM
4) Cache memory
Answer: CPU

Q 59: Number of bits needed to code 512 operations is
1) 4
2) 7
3) 8
4) 9
Answer: 9

Q 60: Booting the computer system is a process which
1) Brings operating system from hard disk to main memory
2) Brings operating system from main memory to hard disk
3) Brings all users data from hard disk to main memory
4) Brings all users data from main memory to hard disk
Answer: Brings operating system from hard disk to main memory

Q 61: A variant of________is called flash memory.
1) Virtual memory
2) Cache memory
4) RAM
Answer: EEPROM

Q 62: The default alingnment of numeric values in MS-Excel is
1) Left
2) Right
3) Centre
4) Justify
Answer: Right

Q 63: PROLOG is a
1) Procedural language
2) Logic programming language
3) Imperative language
4) Functional language
Answer: Logic programming language

Q 64: In a binary number, the rightmost bit is called
1) Most significant bit
2) Least significant bit
3) Carry bit
4) Extra bit
Answer: Least significant bit

Q 65: In Boolean Algebra, A’ (A + B) is equivalent to
1) A’B
2) AB’
3) AB
4) A’B’
Answer: A’B’

Q 66: Usenet service enables a group of internet users
1) For remote login
2) For file transfer
3) To exchange views/information on some common topic of interest
4) To boot remote computer
Answer: To exchange views/information on some common topic of interest

Q 67: Which of the following is not a Web browser ?
2) FireFox
3) MacWeb
4) NetScape
 Answer: XHTML

Q 68: The plane of a circle makes an angle of 45o with HP and VP each. Its plane will be inclined to the “profile plane” (PP) at:
1) 90o
2) 30o
3) 60o
4) its plane will be parallel to PP.
Answer: 90o

Q 69: A rack is a gear in which:
1) Teeth are cut on a flat surface.
2) Teeth are cut on the periphery of a conical surface.
3) Teeth are cut on the outside surface of a disc.
4) Teeth are cut on the inside of an annular surface.
Answer: Teeth are cut on a flat surface.

Q 70: Which of the following scales can be used interchangeably ?
1) Comparative scale and diagonal scales,
2) Diagonal scales and plain scales,
3) Vernier scale and comparative scale,
4) Diagonal scale and vernier scale.
Answer: Diagonal scale and vernier scale.

Q 71: An ant sitting on the “second’s hand” of a clock moves at a constant speed aways from the centre. The path traced by the ant is:
1) Spiral
2) Involute
3) Epicycloid
4) Hypocycloid
Answer: Spiral

Q 72: A square shaped plane is represented in orthographic view as plan, Elevation and Side view. The Isometric projections of all three views would appear to be:
1) All three views will be identical,
2) Isometric of side view and Elevation will be identical but that of plan will be different
3) All three views will be different,
4) Isometric of Plan and Elevation will be identical but that of side view will be different.
Answer: All three views will be different

Q 73: When a body is moving along a circular path with constant speed
1) Work done on it zero
2) Force acting on it zero
3) Its velocity remains constant
4) Its acceleration is zero
Answer: Work done on it zero

Q 74: According to Bohr’s theory of hydrogen atom, the spectral lines corresponding to transitions from higher energy levels to energy level n = 2 belong to
1) P fund series
2) Lyman series
3) Panchen Series
4) Balmer series
Answer: Balmer series

Q 75: The working of an optical fibre is bases on
1) Dispersion of light
2) Total internal reflection
3) Polarisation of light
4) Diffraction of light
Answer: Total internal reflection
RRB Senior Section Engineer Exam Papers (www.newtondesk.com)
Q 76: Fleming’s Right Hand Rule is used for the determination of direction of
1) Force acting on a current carrying conductor kept in a magnetic field
2) Motion of a current carrying conductor kept in on electric field.
3) Current induced in a conductor Due to its motion in a magnetic field
4) Deflection of a charged particle moving in a magnetic field
Answer: Current induced in a conductor Due to its motion in a magnetic field

Q 77: Which one of the following statements is correct ?
1) Resistance of semiconductor material  increases will rise in temperature
2) Internal resistance of a cell depends on the distance between its electrodes.
3) An alloy of tin and lead is used to make the element of an electric heater
4) Drift Velocity of electrons in a metal does not depend upon mass of the electron.
Answer: Internal resistance of a cell depends on the distance between its electrodes.

 Q 78: A and B are two points at same distance from the centre of a short electric dipole on axial line and equatorial line respectively. E1 and E2 are respectively the resultant electric fields due to the dipole at these points. Identify the only correct condition between E1 and E2 from the following for this situation.
1) E1 = 4 E2
2) E2 = 4 E1
3) E1 = E2
4) E1 = 2E2
Answer: E1 = 2E2

Q 79: You are provided a few homonuclear, diatomic molecules (as = given below). Identify the one which is paramagnetic in nature.
1) H2
2) C2
3) B2
4) N2
Answer: B2

Q 80: Halogens have tendency to accept electrons and therefore work as oxidizing agent. The correct increasing order of oxidizing power of the halogens is
1) F2 < Cl2 < Br2 < l2
2) Br2 < l2 < F2 < Cl2
3) l2 < F2 < Cl2 < Br2
4) l2 < Br2 < Cl2 < F2
Answer: l2 < Br2 < Cl2 < F2

Q 81: Which one of the following reaction is not an example of redox reaction ?
1) 3Mg + N2 → Mg3N2
2) CuSO4 + Pb → PbSO4 + Cu
3) l2 + 3Cl2 → 2lCl3
4) CuSO4 + 4NH3 → [Cu(NH3)4] SO4
Answer: CuSO4 + 4NH3 → [Cu(NH3)4] SO4
Q 82: Following solution are prepared by mixing different volumes of NaOH and HCl of different concentrations, pH of which one of them will be equal to 1 ?
1) 100mL (M/10) HCL + 100mL (M/10) NaOH
2) 75mL (M/5) HCL + 25mL (M/5) NaOH
3) 55mL (M/10) HCL + 45mL (M/10) NaOH
4) 60mL (M/10) HCL + 40mL (M/10) NaOH
Answer: 75mL (M/5) HCL + 25mL (M/5) NaOH

Q 83: For obtaining a metal from its ore various metallurgical processes are adopted. Froth flotation process is metallurgy of
1) Oxide ores
2) Chloride ores
3) Sulphide ores
4) Carbonate ores
Answer: Sulphide ores

Q 84: Which one of the following is most viscous ?
1) CH3OH
2) CH2OH
3) CH2OH

Q 85: In Human body, the fluids involved in exchange of substances between cells and their immediate environment are
1) Blood only
2) Lymph or extracellular fluid only
3) Lymph and blood
4) Water circulating in the body
Answer: Lymph or extracellular fluid only

Q 86: The scientific name of an organism consists of
1) One word written in italics
2) Two words written in italics
3) One word written in boldly
4) One word underlined
Answer: Two words written in italics

Q 87: In the diagram, names of two gases that should have been written instead of 1 and 2 are
photosynthesis respiration
1) 1: Carbon-di-oxide;     2: Oxygen
2) 1: Oxygen;                  2: Carbon-di-oxide
3) 1: Hydrogen;               2: Nitrogen
4) 1: Nitrogen;                 2: Hydrogen
Answer: 1: Oxygen;                  2: Carbon-di-oxide

Q 88: When a person is bitten by a mosquito infected by Plasmodium he/She is likely to get
1) Typhoid
2) Malaria
3) Tuberculosis
4) Diarrhoea
Answer: Malaria

Q 89: The organ which receives blood from veins and sends out blood through arteries to organs of body is
1) Heart
2) Liver
3) Stomach
4) Kidney
Answer: Heart

Q 90: The scientific name of human Homo sapiens means.
1) Erect walker
2) Wise talker
3) Wise hominid
4) Brainy bipedal
Answer: Wise hominid

Q 91: Let x be the greatest number by which if 166, 199 and 298 are divided, then the reminder in each case is the same. The sum of digits of x is
1) 2
2) 4
3) 7
4) 11
Answer: 2

Q 92: If m = 25x310x55x73,    n = 24x311x72x56
             P = 26x39x54x74 and q = 24x311x54x711
        Then LCM of m.n.p and q is
1) 3x(10)6x(21)10
2) 2x(10)6x(21)11
3) (10)5x(21)11
4) (10)6(21)11
Answer: (10)6(21)11

Q 93: The ratio of the number of girls and boys who appeared in an examination was 16:9, and the ratio of the girls and boys passing the examination was 4:3. If 75% of boys passed the examination, then percentage of girls who passed the examination was
1) 25
2) 51\frac{1}{4}
3) 56\frac{1}{4}
4) 64
Answer: 56\frac{1}{4}

Q 94: If a:b=4:3, 3b=5c and 4c=9d, then a:d is
1) 1:5
2) 5:1
3) 9:1
4) 9:4
Answer: 5:1

Q 95: The monthly incomes of A, B and C taken together is Rs. 79800. A spends 80% of his income, B spends 87.5% of his income and C spends 90% of his income. If the ratio of savings of A, B and C is 16:17:12, then the income of B exceeds the income of A by:
1) Rs.9500
2) Rs.3800
3) Rs.7600
4) Rs.13300
Answer: 13300

Q 96: From a vessel containing 64 liters of alcohol, 8 liters are drawn out and the vessel is filled up with equal quantity of water. This process is repeated two more times. How much alcohol (in litres) is now contained in the vessel ?
1) 40
2) 40\frac{5}{8}
3) 42\frac{7}{8}
4) 44
Answer: 42\frac{7}{8}

Q 97: In brand A, the ratio of two types oils x and y is 4:3 whereas in brand B. the ratio of x and y is 2:3. How much of A in liters should the mixed with 10 liters of B get a mixture of two oils x and y as 8:7 ?
1) 21
2) 28
3) 35
4) 42
Answer: 35

Q 98: Hari borrowed a sum of money and returned it in three equal quarterly installments of Rs.92610 each. If the rate of interest charged was 20% per annum, compounded quarterly, then the sum (in Rs.) borrowed was.
1) 277830
2) 252200
3) 253200
4) 254200
Answer: 252200

Q 99: A sum of money doubles in 5 years at a certain rate per annum of simple interest and at a different rate triples in 12 years. Of the two rates, the higher rate of interest per annum is
1)  16\frac{2}{3}%
2) 20%
3) 18\frac{3}{4}%
4) 25%
Answer: 20%

Q 100: A person gains 20% by selling an article for a certain price. If he sells it at double the price, then the profit made will be
1) 40%
2) 100%
3) 120%
4) 140%
Answer: 140%
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Q 101: A dealer allows a discount of 16% on the marked price of a table which coast him Rs.1200, If he still gains 5%, the marked price of the table (in Rs.) is
1) 1360
2) 1400
3) 1500
4) 1560
Answer: 1500

Q 102: An aeroplane left 30 minutes later than scheduled time, and in order to reach the destination of 1500 Km, it had to increase to speed 250 km/hours from its usual speed.
1) 2 hours
2) 2\frac{1}{2} hours
3) 3\frac{1}{2} hours
4) 4 hours
Answer: 4 hours

Q 103: A man can row 6 km/hour in still water. When the river is running at 2 km/hours, it takes him 3 hours to row a place and back to the starting point. How far (in km) is the place ?
1) 6
2) 8
3) 10
4) 12
Answer: 8

Q 104: A is twice as fast as B and B is twice as fast as C. If all of them working together can finish a work in 8 days, then in how money days will B do it alone?
1) 56
2) 42
3) 28
4) 14
Answer: 28

Q 105: A and B together can do a piece of work in 24 days; B and C together can do it in 20 days and C and A together can do it in 30 days. They all work together for 12 days, where A and B leave. How many days more will C take to finish the work ?
1) 10
2) 12
3) 20
4) 24
Answer: 12

Q 106: The average of 30 positive integers is x. If the first number is increased by 2, second by 4, third by 6, fourth by 8, and so on, then the average of the resulting numbers is y. The value of y-x is
1) 27
2) 29
3) 31
4) 33
Answer: 31

 Q 107: The average of marks obtained by 150 tudents was 40. If the average marks of passed students were 50 and that of failed students was 20. Then the number of students who passed the examination was
1) 80
2) 90
3) 100
4) 120
Answer: 100

Q 108: If sum of the roots of the equation
 Is equal to the product of the roots, then the sum of the reciprocal of roots is
1) -1
2) 1
3) -2
4) 2
Answer: 1

Q 109: The value of m (m>0) such that the equation
            X2+mx+64=0 and x2-8x+m=0 have real roots is
1) 4
2) 6
3) 8
4) 16
Answer: 16

Q 110: Which one of the following is not a factor of
            64x4+160x3-44x2-360x-225 ?
1) 2x+3
2) 2x-3
3) 4x+5
4) 4x-5
Answer: 4x-5

Q 111: Factorization of (x+2)(x-5)(x-1)-144 is
1) (x+3)(x+2)(x-2)(x-7)
2) (x+3)(x+2)2(x-7)
3) (x+3)(x-2)2(x-7)
4) (x-3)(x-2)2(x+7)
Answer: (x+3)(x-2)2(x-7)

Q 112: If the ratio of the sum of n terms of two arithmetic progressions is (3n+8) : (7n+15), then the ratio of their 10th terms is
1) 65:148
2) 55:148
3) 65:138
4) 55:138
Answer: 65:148

Q 113: If x=1+a+a2+………
And y=1+b+b2+………
Be infinite geometric series with |a|<| and |b|<| respectively. The sum of the infinite geometric series
1) (x+y-1) / xy
2) xy / (x+y-1)
3) (x+y+1) / xy
4) xy / (x+y+1)
Answer: xy / (x+y-1)

Q 114: The value of (2sin263o+1+2sin227o) / (3cos217o-2+3cos273o) Is
1) 4/3
2) 5/4
3) 3
4) 1
Answer: 3

Q 115: An aeroplane flying horizontally 2 km above the ground is observed at an angle of 60o at a point on the ground. If, after 10 seconds, the elevation is observed to be 30o, the uniform speed (in km/hour) of the aeroplane is
1) 240√3
2) 360√3
3) 480√3
4) 600√3
Answer: 480√3

Q 116: What is the main common tenets of Jainism and Buddhism ?
1) Right knowledge is necessary
2) Ahimsa will lead to no rebirth
3) Teacher is supreme master
4) Suffering can be ended by conquering desire.
Answer: Suffering can be ended by conquering desire.

Q 117: Who was the first Moghul ruler to support the translation of Sanskrit works into Persian ?
1) Jehangir
2) Akbar
3) Babur
4) Humayun
Answer: Akbar

Q 118: Why is the Battle of Salbai 1782 significant in the establishment of British power in India?
1) The Marathas made a 20 year peace with the British and helped suppress Mysore.
2) The British were able to establish the Presidencies in Bombay, Calcutta and Madras
3) The Marathas were able to expand their territories and conquer Mysore
4) The British were able to trade with the interior of India and Conquer Oudh.
Answer: The Marathas made a 20 year peace with the British and helped suppress Mysore.

Q 119: In which zone will the sun never be overhead but present all the year ?
1) Arctic zone
2) Tropical zone
3) Temperate zone
4) Antarctic zone
Answer: Temperate zone

Q 120: Which of these States has shown a higher increase of urban population compared to the National level ?
1) West Bengal
2) Uttarpradesh
3) Tamilnadu
4) Maharastra
Answer: Maharashtra

Q 121: Which two cities of Madhya Pradesh have include in the Delhi Mumbai Industrial Corridor ?
1) Ujjain and Gwalior
2) Bina and Indore
3) Neemuch and Shajapur
4) Rewa and Bina
Answer: Neemuch and Shajapur

Q 122: What is the reason why compulsory voting cannot be insisted in a democracy ?
1) The right of free speech
2) The right to dissent
3) Equality of all citizens
4) Right to work where one wants.
Answer: The right to dissent

Q 123: Who is allowed to introduce a money bill in Parliament in India ?
1) Member
2) Minister
3) Speaker
4) Opposition Leader
Answer: Minister

Q 124: The development of which Industries does the Make in India effort which will increase GDP from the current 15% to 25% focuses on ?
1) Electronics, Automobile and shipbuilding
2) Consumer appliances, sports goods and robots
3) Engineering goods, electrical goods and chemicals
4) Paper, Textiles, and Sugar.
Answer: Electronics, Automobile and shipbuilding

Q 125: In which sector are most farm workers leaving overcrowded farms moving into ?
1) Large manufacturing
2) Government employment
3) Small scale Industries
4) Informal sector
Answer: Informal sector
RRB Senior Section Engineer Exam Papers (www.newtondesk.com)
Q 126: What is the main focus of the ‘Prakash Path’ Policy ?
1) Use of LED and reduction in energy need in homes
2) Switch to renewable energy sources in rural areas
3) Diversion of energy needs from industry to agriculture
4) Increased use of natural gas for electricity production
Answer: Use of LED and reduction in energy need in homes

Q 127: Which form of heating in our home is similar to that of the Sun ?
1) Sound wave
2) Light wave
3) Microwave
4) Radio wave
Answer: Microwave
Q 128: Why are metals good conductors of heat ?
1) Electrons are free
2) Atoms are tightly packed
3) Melting point is high
4) Particles are separate
Answer: Electrons are free

Q 129: Which one of the following has reflection as its constructional basics ?
1) Periscope
2) Telescope
3) Microscope
4) Binocular Microscope
Answer: Microscope

Q 130: Which gas is used for artificial ripening of green fruit ?
1) Calcium Carbide
2) Carbon Dioxide
3) Ethylene
4) Acetylene
Answer: Ethylene

Q 131: Which of the following gases is used for removing impurities in water ?
1) Hydrogen
2) Oxygen
3) Chlorine
4) Carbon Dioxide
Answer: Oxygen

Q 132: Which is the most abundant rare gas in the atmosphere ?
1) Helium
2) Argon
3) Neon
4) Xeon
Answer: Neon

Q 133: What s a biome ?
1) Animals, plants and fish found in a pond, or tree
2) A large community of naturally occurring trees and animals in an area
3) Natural processes which help to keep the environment clean.
4) The processes which relate the food producers and consumers
Answer: The processes which relate the food producers and consumers

Q 134: Which of the following food intake is the predominant supplier of sodium to our body ?
1) Vegetables
2) Sugar
3) Pulses
4) Salt
Answer: Vegetables

Q 135: Ancestors of which species are the Ramapithecus and Cro-Magnon ?
1) Neanderthal
2) Monkey
3) Orangutan
4) Modern man
Answer: Modern man

Q 136: How many players are there in a kabaddi game
1) Five
2) Ten
3) Twelve
4) Seven
Answer: Seven

Q 137: What Is the bowling action which a leg spin bowler throws which spins from left to right ?
1) Googly
2) Doosra
3) Off spin
4) Seam
Answer: Googly

Q 138: What is the significant cutcome of the Iran Nuclear Deal ?
1) Chine will help Iran develop nuclear power
2) Iran will not acquire or produce Nuclear weapons.
3) New equipment will be shared for nuclear production
4) Iran will be able to monitor U.S. nuclear development
Answer: Iran will not acquire or produce Nuclear weapons.

Q 139: Which is considered the longest road tunnel in India ?
1) Maliguda tunnel Odisha
2) Pune – Mumbai tunnel
3) Patnitop Jawahar tunnel Kashmir
4) Punarjani Guha in kerala
Answer: Patnitop Jawahar tunnel Kashmir

Q 140: Which is the State symbol of Maharastra
1) Elephant
2) Pangolin
3) Blue Mormon Butterfly
4) Peacock
Answer: Blue Mormon Butterfly

Q 141: ‘I defeated the only brother of the daughter of my paternal grandmother at chess, ‘ said Albert. Whom did Albert defeat ?
1) Son
2) Brother
3) Uncle
4) father
Answer: Father

Q 142: 8 is to 51.2 as 7 is to….
1) 34.3
2) 25.6
3) 72.9
4) 62.5
Answer: 34.3

Q 143: Question: Interrogation mark = …….. : exclamation mark
1) Sentence
2) Explanation
3) Surprise
4) Sorrow
Answer: Surprise

Q 144: Travelling salesman Don needs to reach his headquarters urgently. He drives 10 km short of the midpoint at 60 kmph. Because of the traffic jam, he had to slow down for covering the remaining distance. He drove at 40 kmph and reched the destination in 100 minutes. How long was the drive ?
1) 74 kms
2) 76 kms
3) 100 kms
4) 75 kms
Answer: 76 kms

Q 145: Find the odd one out:
         1,331     125    1    216    8    81    729    1,728
1) 81
2) 125
3) 1331
4) 64
Answer: 81

Q 146: Four of the following five groups of letters are similar in a certain way: QRS, LMN, XWV, HIJ, UVW. Which is the odd one ?
1) LMN
2) QRS
3) XWV
4) UVW
Answer: XWV

Q 147: In a certain code, 538 means ‘sugar and spice’ and 347 means ‘tea with sugar’. If 489 means ‘tea and cake’, what is the code for ‘sugar and cake’ ?
1) 943
2) 853
3) 589
4) 839
Answer: 839

Q 148: If COPPER is coded as SFQQPD, how will IRON be coded as ?
1) JSPO144
Answer: OPSJ

Q 149: Stephen, a fresher in the college, is looking for the main Library. He asks a senior who tells him: You are now facing the north. Turn left, walk to the Chemistry Block and turn right. Walk till you see the Fine Arts Block and take a left turn and you will reach the Main Library. In which direction is the last lap ?
1) East to West
2) West to East
3) North to South
4) South to North
Answer: East to West

Q 150: What number should come in the fourth square ?
Reasoning square
1) 37
2) 39
3) 48
4) 38
Answer: 38

RRB Senior Section Engineer Exam Papers (www.newtondesk.com)

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