Previous year question papers of Scientific Assistant Exam

Will you please share with me the previous year question papers of Scientific Assistant Exam?

[Kiran Chandar]

As you want to get the previous year question papers of Scientific Assistant Exam so here it is for you:

1 (95.6x 910.3) ÷ 92.56256 = 9?
(A) 13.14
(B) 12.96
(C) 12.43
(D) 13.34
(E) None of these

2. (4 86%of 6500) ÷ 36 =?
(A) 867.8
(B) 792.31
(C) 877.5
(D) 799.83
(E) None of these

3. (12.11)2 + (?)2 = 732.2921
(A)20.2
(B) 24.2
(C)23.1
(D) 19.2
(E) None of these

4.576÷ ? x114=8208
(A)8
(B)7
(C)6
(D)9
(E) None of these

5. (1024—263—233)÷(986—764— 156) =?
(A)9
(B)6
(C)7
(D)8
(E) None of these

6. ?125÷5x ?=6265
(A)1253
(B) 1250
(C)1245
(D) 1550
(E) None of these

7.(42)2÷6.3 x 26 =?
(A)7182
(B) 7269
(C)7260
(D) 7240
(E) None of these

8.384×12×2=?
(A)9024
(B) 9216
(C)6676
(D) 6814
(E) None of these

9.6534÷40÷33=?
(A)3.06
(B) 5.25
(C)4.82
(D) 6.12
(E) None of these

10. ?2704 x ?2209=?
(A)1996
(B)2444
(C)2452
(D)1983
(E)None of these

11.2536+4851—?=3450+313
(A)3961
(B)4532
(C)3624
(D)4058
(E) None of these

12. (2560 x 1.4) +(7400 x 0.6) =?
(A)7512
(B) 9746
(C)6523
(D) 8024
(E) None of these

13. 36%of 850+? %of 592 = 750
(A)73
(B)89
(C)82
(D)75
(E) None of these
14.64%of 2650+40% 0f 320=?
(A)1824
(B) 1902
(C)1829
(D) 1964
(E) None of these

15. 486+32×25—59=?
(A) 514
(B) 528
(C) 599
(D) 507
(E) None of these

16. 1827÷ 36 x ?=162.4
(A)4.4
(B)3.2
(C)2.1
(D) 3.7
(E) None of these

17. 1008÷36=?
(A)28
(B) 32.5
(C)36
(D) 22.2
(E) None of these

18. 56.21 +2.36+5.41 —21.4+1.5=?
(A)40.04
(B) 46.18
(C)44.08
(D) 43.12
(E) None of these

19. 65%of 320+?=686
(A) 480
(B) 452
(C)461
(D) 475
(E) None of these

20. 83250÷?=74×25
(A)50
(B) 45
(C)40
(D) 55
(E) None of these

21. ?7744=?
(A)88
(B)62
(C)58
(D)78
(E)None of these

22.35%of ?=242
(A)729
(B)652
(C)693
(D)759
(E) None of these

23. 1256+4813+765=?
(A)5642
(B) 5876
(C)6788
(D) 6878
(E) None of these

24. 22 x4+(?)2=(13)2
(A) 81
(C) 27
(B) 9
(D) 64
(E) None of these

25. 432+2170+35=?
(A)494
(B) 475
(C)481
(D) 469
(E) None of these

26. Three numbers are in the ratio of 3: 4 :5 respectively. If the sum of
the first and third numbers is more than the second number by 52, then
which will be the largest number?
(A) 65
(B) 52
(C) 79
(D) 63
(E) None of these

27. The compound interest on a certain amount for 2 years at the rate of
8 p.c.p.a. is Rs.312. What will be the simple interest on the same amount
and at the same rate and same time?
(A)Rs. 349.92
(B) Rs. 300
(C)Rs. 358.92
(D) Rs. 400
(E) None of these

28. The length of a rectangle exceeds its breadth by 7 ems. If the length
is decreased by 4 cm. and the breadth is increased by 3 cms., then the
area of the new rectangle will be the same as the area of the original
rectangle. What will be the perimeter of the original rectangle?
(A)45 cms.
(B)40 cems.
(C)50 cms.
(D)55 cms.
(E)None of these

29. The sum of the digits of a two digit number is 12. If the new number
formed by reversing the digits is greater than the original number by 54,
then what will be the original number?
(A)28
(B) 48
(C)39
(D) 93
(E) None of these

30. In a fraction, twice the numerator is two more than the denominator.
If 3 is added to the numerator and the denominator each, then the
resultant fraction will be 2/3 .What was the original fraction ?
(A)5/18
(B)6/13
(C)13/6
(D)7/12
(E) None of these

31. Four-fifth of a number is 10 more than two-third of the same number.
What is the number?
(A) 70
(B) 75
(C) 69
(D) 85
(E) None of these

32. A shopkeeper purchased 200 bulbs for Rs. 10 each. However, 5 bulbs
were fused and had to be thrown away. The remaining were sold at Rs. 12
each. What will be the percentage
profit?
(A) 25
(B) 15
(C) 13
(D) 17
(E) None of these

33. What should come in the place of question mark (?) in the number
series given below?
25, 34, 52,79, 115,?
(A)160
(B) 140
(C)153
(D) 190
(E)None of these

34. What number should replace both the question marks (?) in the
following question ?
?/144= 49 /?
(A)95
(B) 76
(C)82
(D) 84
(E)None of these

35. The sum of three consecutive even numbers is 252. What is the sum of

the smallest and the largest numbers?
(A)158
(B) 148
(C)168
(D) 198
(E) None of these

36. Ajay spends 25% of his salary on house rent, 5% on food, 15% on
travel, 10% on clothes and the remaining amount of Rs. 27,000 is saved.
What is Ajay’s income?
(A) Rs. 60,000
(B) Rs. 80,500
(C) Rs. 60,700
(D) Rs. 70,500
(E) None of these
37. In how many different ways, can the letters of the word ‘CRISIS’ be
arranged ?
(A) 150
(B) 240
(C) 120
(D) 200
(E) None of these

38. At each corner of a square park with side equal to 40 m, there is a
flower bed in the form of a sector of radius 14 m. What is the area of
the remaining part of the park?
(A)984 Square m
(B) 789 Square m
(C) 1014 Square m
(D) 1024 Square m
(E) None of these

39. The length of a rectangular field is thrice its breadth. If the cost
of cultivating the field at Rs. 367.20 per square meter is Rs. 27,540,
then what is the perimeter of the rectangle?
(A)47m
(B) 39m
(C)52m
(D)40m
(E) None of these

40. If the fractions8/5,7/2,9/5,5/4,4/5 are arranged in descending order
of their values, which one will be fourth?
(A)4/5
(B)5/4
(C)9/5
(D)8/5
(E) 7/2

41. The present ages of Chetna and Shikha are in the ratio of 5 :7
respectively. After 7 years, their ages will be in the ratio of 11:14
respectively. What is the difference between their ages?
(A)9 years
(B) 4 years
(C)5 years
(D) 7 years
(E) None of these

42. If 13 men can complete a piece of work in 36 days, then in how many
days will 18 men complete the same work?
(A)16 days
(B) 20 days
(C)26 days
(D) 30 days
(E) None of these

43. If the area of a circle is 75.44 square cm then what is the
circumference of the circle?
(A)29.2 cm
(B) 28.9 cm
(C)30.8 cm
(D) 40.2 cm
(E) None of these

44. Girish started a business investing Rs. 45,000. After 3 months, Vijay
joined him with a capital of Rs. 60,000. After another 6 months, Ankush
joined them with a capital of Rs. 90,000. At the end of the year, they
made a profit of Rs. 16,500. What is Girish’s share of profit ?
(A) Rs. 5,500
(B) Rs. 6,000
(C) Rs. 6,600
(D) As. 5,900
(E) None of these

45. What is the average age of a family of five members, whose ages are
42, 49, 56, 63 and 35 years respectively?
(A)60 years
(B) 49 years
(C)45 years
(D) 58 years
(E) None of these

46. A and B are two taps which can fill a tank individually in 10 minutes
and 20 minutes respectively. However, there is a leakage at the bottom
which can empty a filled tank in 40 minutes. If the tank is empty
initially, how much time will both the taps take to fill the tank
(leakage is still there) ?
(A) 8 minutes
(B) 7 minutes
(C) 10 minutes
(D)15 minutes
(E) None of these

47. What is 50% of 40% of Rs. 3,450?
(A) Rs. 690
(B) As. 520
(C) Rs. 517.5
(D) Rs. 499.2
(E) None of these

48. If an amount of Rs. 5,86,700 is distributed equally amongst 25
persons, then how much would each person get?
(A) Rs. 2,54,876
(B) Rs. 2,34,68
(C) Rs. 3,74,20
(D) Rs. 1,95,62
(E) None of these

49. An urn contains 9 blue, 7 white and 4 black balls. If 2 balls are
drawn at random, then what is the probability that only one ball is
white?
(A) 71/190
(B) 121/190
(C) 91/190
(D) 93/190
(E) None of these

50. If the price of 5 transistors and 2 pen stands is Rs. 810, then what
will be the price of 7 transistors and 9 pen stands?
(A) Rs. 1,320
(B) Rs. 1,500
(C) Rs.1,150
(D) Cannot be determined
(E) None of these


ANSWERS:
1 - D 2 - C 3 - B 4 - A 5 - D 6 - A 7 - E 8 - B 9 - E 10 - B 11 - C 12- D 13 - D 14 - A 15 - B16 - B 17 - A 18 - C 19 - E 20 - B 21 - A 22 - C 23 - E 24 - B 25 - A 26- A 27 - B 28 - C 29 - C 30 - D 31 - B 32 - D 33 - A 34 - D 35 - C 36 -A 37 - E 38 - A 39 - D 40 - B 41 - E 42 - C 43 - C44 - A 45 - B 46 - A 47 - A 48 - B 49 - E 50 – D

Can you provide me the syllabus of SSC Scientific Assistant exam on which the question paper is based as I need it for preparation?

[Pathak]

The syllabus of SSC Scientific Assistant exam on which the question paper is based as you need it for preparation is as follows:

Paper-I
(i) General Intelligence & Reasoning : The Syllabus for General Intelligence would include questions of both verbal and non-verbal type. The test may include questions on analogies, similarities, differences, space visualization, problem solving, analysis, judgement, decision making, visual memory, discrimination, observation, relationship concepts, arithmetical reasoning, verbal and figure classification, arithmetical number series etc. The test will also include questions designed to test the candidate‘s abilities to deal with abstract ideas and symbols and their relationships, arithmetical computations and other analytical functions.

(ii) Quantitative Aptitude:The questions will be designed to test the ability of appropriate use of numbers and number sense of the candidate. The scope of the test will be computation of whole numbers, decimals, fractions and relationships between numbers, Percentage, Ratio & Proportion, Square roots, Averages, interest, Profit and Loss, Discount, Partnership Business, Mixture and Alligation, Time and Distance, Time & Work, Basic algebraic identities of School Algebra & Elementary Surds, Graphs of Linear Equations, Triangle and its various Kinds of centers, Congruence and similarity of triangles, Circle and its chords, tangents, angles subtended by chords of a circle, common tangents to two or more circles, Triangle, Quadrilaterals, Regular Polygons, Circle, Right Prism, Right Circular Cone, Right Circular Cylinder, Sphere, Hemispheres, Rectangular Parallelepiped, Regular Right Pyramid with triangular or square base, Trigonometric ratio, Degree and Radian Measures, Standard Identities, Complementary angle, Heights and Distances, Histogram, Frequency polygon, Bar diagram & Pie chart.

(iii) English Language & Comprehension: English grammar, Vocabulary, Spellings, Synonyms and Antonyms, Comprehension, Correct and incorrect usages, etc.
(iv) General Awareness: General, physical, geographical, topographical, economic and climatic features of India. Current events. Matters of everyday observation and experience on scientific aspects and reasoning. Basic topics of mathematics, Chemistry and Physics. History of India, its cultural heritage, freedom movement, salient feature of the Constitution of India. Economic and social aspect of the country and its people.

NOTE: Paper –I will consist of Objective Type Multiple Choice questions only. Answer-
sheets of Paper-II (Conventional Type) will be evaluated in respect of only
those candidates who qualify in Paper I at the standard as decided/fixed
by the Commission at its discretion.

Paper-II
a) Physics

Mechanics: Units and dimensions, SI UNITS, Newton‘s Laws of Motion, conservation of linear and angular momentum, projectiles, rotational motion, moment of inertia, rolling motion, Newton‘s Law of gravitation, Planetary motion, Kepler‘s Laws of Planetary motion, artificial satellites, Fluid motion, Bernoulli‘s theorem, Surface tension, Viscosity, Elastic Constants, bending of beams, torsion of cylindrical bodies, elementary ideas of special theory of relativity.
Thermal Physics, Radiation & Sound: Thermometry, Zeroth, first and second laws of thermodynamics, reversible and irreversible processes, Internal energy, Head engines, Maxwell‘s relation, ideal and real gases, equations of state, Heat Capacities, Adiabatic and Isothermal processes, Clausius-Clapeyron relation, Thermal Conductivity, Entropy, Enthalpy, Dalton‘s law of partial pressure, Vapour pressure, Kinetic theory of gases, Brownian motion, Maxwell‘s velocity distribution, Equipartition of energy, mean free path Vander walls‘ equation of State, Liquefaction of gases.

Blackbody radiation, Kirchhoff‘s law, Stephen‘s law, Planck‘s law. Conduction in solids.
Wave and Oscillations: Simple harmonic motion, wave motion, superposition principle, Damped oscillations; forced oscillations and resonance; simple oscillatory systems; vibrations of rods, strings and air columns. Doppler effect; Ultrasonic; Sabine‘s law of reverberation; Recording and reproduction of sound.

Optics: Nature and propagation of light; Refection & Refraction. Interference; diffraction; polarization of light; simple interferometers. Determination of wavelength of spectral lines, Electromagnetic spectrum. Rayleigh scattering, Raman effect, Lenses and mirrors, combination of coaxial thin lenses, spherical and chromatic aberrations, and their corrections, Microscope, Telescope, Eyepieces and Photometry.

Electricity and magnetism: Electric charges, fields and potentials, Gauss‘s theorem, Electrometers, Dielectrics, Magnetic properties of matter ad their measurement, Elemental theory of dia, para and ferro-magnetism, Hysteresis, Electric current and their properties, Ohm‘s law, Galvanometers, Whetstone‘s bridge and applications, Potentiometers, Faraday‘s law of E.M. induction, self and mutual inductance and their applications, alternating currents, impedance and resonance, LCR circuit, Dynamos, motors, transformers, Peltier-Seebeck and Thomson effects and applications, electrolysis, Hall effect, Hertz experiment and electro-magnetic waves, Particle accelerators and cyclotron.

Atomic structure: Electron, measurement of ‗e‘ and ‗e/m‘, measurement of Planck Constant, Rutherford-Bohr Atom, X-rays, Bragg‘s law, Moseley‘s law, Radioactivity, Alpha-Beta-Gamma emission, Elementary ideas of nuclear structures, Fission, Fusion and Reactors, Louis de Broglie waves and Electron Microscope. Electronics; Thermo-ionic emission, diodes and triodes, p-n diodes and transistors, simple rectifier, amplifier and oscillator circuits.

Computer Science and Information Technology

Computer: History of Computer and their classification, Basic Organization, Memory – RAM, ROM, EPROM, etc, Magnetic-Floppy, Hard disks, CDROM, WORM etc, Concept of Virtual Memory and Cache, Number systems, binary octal, Hexadecimal, Binary Addition, Subtraction and Multiplication, Flotation, point representation and arithmetic, Arithmetic through stacks.
Operating systems: assemblers, elements of Assembly language programming-Overview of the Assembly process, assembler for the IBM PC, Process synchronization, Memory Management – address Binding – dynamic Loading and linking – overlays – logical and Physical address space – Contiguous Allocation – internal & External Fragmentation. Non-Contiguous Allocation: Paging and Segmentation Schemes – Implementation – Harare Protection – Protection – sharing – Fragmentation.

Virtual Memory: Demand Paging – Page Replacement – Page Replacement algorithms – Thrashing.

File System: File Concepts – Assess Methods – Directory Structures – Protection Consistency Semantics – File system Structures – Allocation Methods – Free Space Management.

I/O System: Overview – I/O hardware – Application I/O Interface – Kernel I/O subsystem, Performance, Secondary Storage Structures, Protection, Goals, Domain – Access matrix.

Assemblers: Elements of assembly language programming – Overview of the Assembly process – Design of a low-pass Assembler – a single pass Assembler for the IBM PC. The security Problem – Authentication – Threats – Threat Monitoring – Encryption.

Fundamentals of programming: Unix Programming, lPro0gramming in FORTRAN, C, Object Oriented Programming in C++, programming in Java, Basics of compilers.
Database Management Systems: Advantages and components of a Database Management Systems, Data Types, Data Dictionary, Query Basics, Forms and Reports, Graphical objects, Error Handing, Distributing Application, Data Storage Methods, Data Clustering and Partitioning, Database Administration, Backup and Recovery, Security and Privacy, Distributed Databases, Client/Server Databases, Object Oriented Databases, Integrated Applications, SQL, RDBMS.

Internet Technology: Basics, topologies, layers, switching in the networks, bridges, routers and gateways, types of networks, WWW. Client/Server Applications, Internet Standards and specifications, ISP, Broad Band Technologies, Protocols, web-servers, browsers, and security, fire walls, date security, HTML, dHTML XML,Web designing. Fundamentals of GIS: GIS Data and Spatial Models, Topology ad Spatial Operations, Projections, Scale and Coordinate Systems, Mapping, GIS Analysis, Cartography. Basics of GIS application development

Electronics & Telecommunication
i) Electronics:
Conductors, Semi-conductors, Insulators, Magnetic, Passive components, characteristics of Resistors, Capacitors and inductors.
PN Junction diode, forward and reverse bias characteristics and equivalent circuits of diode, Zener diode and applications, clipping, clamping and rectifier circuits using diodes.
Bipolar Junction Transistors (BJT) Field Effect Transistor (FET) and MOSFET; Biasing ad stability, Emitter follower and its applications – Negatives feed back-Transistor as a switch, Multistage Amplifiers, Feedback, Oscillators, Multivibrators, Voltage regulation, Power amplifiers.

Introduction to Network Theorems: Kirchoff‘s laws, superposition, Thevenin‘s Norton‘s
And Maximum power theorems.
Voltage and Current relationship in the resistance, inductance and capacitance. Concept of reactance, susceptance, conductance, impedance and admittance in series and parallel RL, RC and RLC circuits – Three phase supply-star and delta connection diagrams – Relation between line and phase & voltages and currents, series and parallel resonance circuits – condition of resonance, resonant frequency, Q factor and bandwidth. Digital electronics – Logic gates, Demorgan‘s theorem, Boolean algebra, frequency counters, flip-flops, shift resistors, Basic concepts of Digital to Analog and Analog to Digital Converters, Timing circuits, Digital logic circuits, systems & codes Combinational logic design.

ii) Telecommunication:
Basic antenna principle directive gain, directivity, radiation pattern, broad-side and end-fire array, Yagi antenna , Parabolic antenna, Ground wave propagation, space waves, ionosphere propagation and electromagnetic frequency spectrum, Modulation, types of modulation, Amplitude Modulation (AM) , Modulation index, Power relation in AM, Generation and Demodulation of AM.

SSB: Power requirement in comparison with AM, Advantages of SSB over AM. Concept of Balanced Modulator, Generation of SSB, Pilot Carrier System. Independent Side System, Vestigial Sideband Transmission.

Frequency Modulation (FM): Definition of FM, Bandwidth, Noise triangle, Preemphasis and

De-emphasis.

Pulse Modulation (PM): Definition of PM. Difference between AM and FM. Radio receivers. Sampling Theorem, PAM, PTM, PWM, PPM, pulse code modulation, Quantization noise, commanding, PCM system, differential PCM, Delta modulation.
Multiplexing: FDM/TDM.

Introduction of digital Communication: PSK, ASK, FSK, introduction to fiber optics system, Propagation of light in optical fiber and ray model.

Propagation of signals at HF, VHF, UHF and microwave frequency and satellite communications.