Notebook

1. For an ideal gas the value of Joule
Thomson coefficient is
A. Zero B. 0.5
C. Unity D. Infinite
Ans. A.
2. Perpetual motion machine of second
kind violates the
A. First law of thermodynamics
B. Kelvin-plank statement
C. Clausius statement
D. Third law of thermodynamics
Ans. B.
3. The ratio of thermal conductivity to
electrical conductivity is equal to
A. Prandtl number B. Schmidt number
C. Lorentz numberD. Lewis number
Ans. C.
4. The effectiveness of a fin will be
maximum in a environment with
A. Free convection
B. Forced convection
C. Radiation
D. Convection and radiation
Ans. A.
5. With increasing temperature of intake
air, IC engine efficiency
A. Decreases
B. Increases
C. Remains same
D. Depends on other factors
Ans. A.
6. Thermal efficiency of CI engine is higher
than that of SI engine due to
A. Fuel used
B. Higher compression ratio
C. Constant pressure heat addition
D. Lower compression ratio
Ans. B.
7. The float in the carburettor of a petrol
engine controls
A. Flow rate of air
B. Flow rate of fuel
C. Flow rate of air-fuel mixture
D. Level of the petrol in the float
chamber
Ans. D.
8. Angle between the face and flank of the
single point cutting tool is known as
A. Rake angle B. Clearance angle
C. Lip angle D. Point angle
Ans. C.
9. Which of the following is a cutting tool
material
A. High speed steel B. Mild steel
C. Cost iron D. Galvanized steel
Ans. A.

10. In milling machine, the cutting tool is
held in position by
A. Chuck B. Spindle
C. Arbor D. Tool holder
Ans. C.
11. Collapsible tooth paste tubes are
manufactured by
A. Direct extrusion
B. Piercing
C. Impact extrusion
D. Indirect extrusion
Ans. C.
12. Sprue in casting refers to
A. Gate B. Runner
C. Riser D. Vertical passage
Ans. D.
13. In arc welding, arc is created between
the electrode and work by
A. Flow of current
B. Voltage
C. Material characteristics
D. Contact resistance
Ans. D.
14. Preheating of work piece is essential in
welding
A. High speed steel
B. Stainless steel
C. Cast iron
D. Aluminium
Ans. C.
15. An ideal voltage source should have
A. large value of emf
B. small value of emf
C. zero source resistance
D. infinite source resistance
Ans. C.
16. Which bulbs operates on lowest power
A. Night bulb B. Neon bulb
C. GLS bulb D. Torch bulb
Ans. D.
17. Electrode in not consumed in the case
of
A. TIG welding
B. MIG welding
C. Gas welding
D. Resistance welding
Ans. A.
18. DC generator are installed near the load
centres to reduce.
A. iron losses
B. line losses
C. sparking
D. corona losses
Ans. B.

19. In a DC motor, constant torque is
produced due to
A. rotor laminations B. end plates
C. pole shoes D. commutator
Ans. D.
20. Which of the following is not a part of
transformer.
A. Conservator B. Buccholz Relay
C. Exciter D. Breather
Ans. C.
21. An induction motor is
A. self starting with zero torque
B. self starting with high torque
C. self starting with low torque
D. non self starting
Ans. C.
22. The term “cogging” is associated with
A. three phase transformer
B. compound generators
C. DC series motor
D. Induction motors
Ans. D.
23. The speed of universal motor is
generally reduced by using
A. gear trains B. V-belts
C. brakes D. chains
Ans. A.
24. A thermal protection switch can protect
against
A. short circuit B. temperature
C. over load D. Variable load
Ans. C.
25. In a bipolar transistor which current is
largest
A. collector current
B. base current
C. emitter current
D. base or emitter current
Ans. C.
26. The word enhancement mode is
associated with
A. tunnel diode B. MOSFET
C. photodiode D. varactor diode
Ans. B.
27. Which of the following has highest
resistivity?
A. Mica B. Paraffin
C. Air D. Mineral oil
Ans. C.
28. Power diodes are generally
A. silicon diodes
B. germanium diodes
C. carbon diodes
D. carbon or germanium diodes
Ans. A.

29. The depletion layer width of junction
A. decreases with light doping
B. is independent of applied voltage
C. increases under reverse bias
D. increases with heavy doping
Ans. C.
30. For mercury arc rectifiers, the anode is
usually made up of
A. aluminium B. graphite
C. tungsten D. copper
Ans. B.
31. For effective modulation, the degree of
modulation should
A. small
B. never exceed 100%
C. be large
D. always more than 100%
Ans. B.
32. Which of them radiates emission?
A. LED
B. LCD
C. Both LCD and LED
D. Neither LCD nor LED
Ans. A.
33. Binary 101010 is equivalent to decimal
number
A. 24 B. 42
C. 64 D. 44
Ans. B.
34. The number of valence electrons in
donor impurity are
A. 1 B. 3
C. 5 D. 7
Ans. C.
35. A prismatic beam has uniform
A. Depth B. Width
C. Strength D. Cross-section
Ans. D.
36. A well graded soil has a coefficient of
curvature between
A. 10 to 12 B. 7 to 9
C. 4 to 6 D. 1 to 3
Ans. D.
37. How is the deflection in RC beams
controlled as per IS : 456?
A. By using large aspect ratio
B. By using small modular ratio
C. By controlling span/depth ratio
D. By moderating water-cement ratio
Ans. C.
38. A steel beam supporting loads from the
floor slab as well as from wall is termed
as
A. Stringer beam
B. Lintel beam
C. Spandrel beam
D. Header beam
Ans. C.

39. The dimensions of dynamic viscosity μ
are
A. ML–1 T
–2 B. ML–1 T
–1
C. MLT–2 D. M°L
°T
°
Ans. B.
40. The representative fraction 1/2500
means that the scale 1 cm is equal to
A. 0.25 m B. 2.5 m
C. 25 m D. 2.5 km
Ans. C.
41. CPM is the
A. time oriented technique
B. event oriented technique
C. activity oriented technique
D. target oriented technique
Ans. C.
42. Which of the following cement has
maximum percentage of C3S
A. Ordinary portland cement
B. Low heat cement
C. Sulphate resisting cement
D. Rapid hardening cement
Ans. D.
43. Consistency as applied to cohesive soils
is an indicator of its
A. Density B. Moisture content
C. Shear strength D. Porosity
Ans. C.
44. The needle of a magnetic compass is
generally supported on a
A. Bush bearing B. Ball bearing
C. Needle bearing D. Jewel bearing
Ans. D.
45. Stainless steel resist corrosion due to
A. Carbon B. Manganese
C. Chromium D. Sulphur
Ans. C.
46. A barometer is used to measure
A. Very low pressure
B. Very High pressure
C. Pressure difference between two
points
D. Atmospheric pressure
Ans. D.
47. The household energy meter is
A. indicating instrument
B. recording instrument
C. integrating instrument
D. visible instrument
Ans. C.
49. Assertion (A): De sauty’s bridge is
suitable only for pure capacitor.

Reason (R): Capacitors are mostly
perfect.
A. Both A and R are true and R is correct
explanation of A
B. Both A and R are true but R is not
correct explanation of A
C. A is true R is false
D. A is false R is true
Ans. C.
50. A voltmeter using thermocouples
measures
A. RMS value B. Peak value
C. Average value D. Peak of peak
value
Ans. A.
51. To increase Q factor of a coil, the wire
should be
A. Thin B. Thick
C. Long D. Long and thin
Ans. B.
52. The undesirable taste and odours
caused by dissolved gases may be
removed by
A. chemical treatment
B. aeration
C. disinfection
D. reverse osmosis
Ans. B.
53. The biochemical oxygen demand of
treated water should be
A. nil
B. less than 30 mg/I
C. less than 150 mg/I
D. always more than 9 mg/I
Ans. A.
54. The function of sluice valve provided in
pipe line is
A. to reduce the chances of pollution
reaching into the pipe
B. to reduce the pressure on pipes
C. to regulate the flow of water through
the pipes
D. to allow the air to enter the pipe
Ans. C.
55. The source of lead in urban atmosphere
is
A. bursting of cracker in festive season
B. road traffic
C. construction works
D. small scale industries
Ans. B.
56. The noise level decreases with distance
following
A. inverse square law
B. power law
C. directly proportional to intensity
square
D. inversely proportional to intensity
Ans.A

57. The major pollutant that may cause
damage to prestigious monument Taj
Mahal is
A. RSPM along with humidity
B. NOx with HC + Ozone
C. SOx with humidity
D. Organic vapours released from
Mathura refinery
Ans. C.
58. Microphone is a
(an)_________________
A. Input device
B. Output device
C. Storage device
D. Both input and output device
Ans. A.
59. Which of the following is a volatile
memory?
A. Cache memory B. Hard Disk
C. DVD D. CD
Ans. A.
60. Dynamic RAM (DRAM) is slower than
Static RAM (SRAM)
because___________________
A. DRAM uses flip-flops
B. DRAM is costlier
C. DRAM requires refreshing
D. DRAM is cheaper
Ans. C.

RRB JE Syllabus 2019:

Railway Recruitment Board (RRB) will be tentatively conducting the RRB JE exam –
the 1st stage Computer Based Test CBT) in April/May 2019.
The registration  has started from 2nd January 2019 and will continue till 31st January 2019.

The exam is conducted to select candidates for the posts of
Junior Engineer (JE
Junior Engineer IT (JE IT)
Depot Material Superintendent (DMS)
Chemical and Metallurgical Assistant (CMA) in Indian Railways.

DETAILED RRB JE EXAM PATTERN

RRB JE Syllabus 2019

The Computer Based Test of RRB JE is conducted in stages and will consist of multiple choice questions.
RRB JE CBT
1st stage will have 100 questions
150 questions will be asked in 2nd stage CBT
There is a negative marking of 1/3 marks for each wrong answer in both the stages of CBT.

RRB JE 1st stage CBT will have the following four sections:

a. General Intelligence and Reasoning
b. General Awareness
c. Mathematics
d. General Science

RRB JE 2nd stage CBT will have the following sections:

a. General Awareness
b. Physics and Chemistry
c. Basics of Computers and Application
d. Basics of Environment and Pollution Control
e. Technical Abilities

:

RRB JE      Mathematics Syllabus

The following topics are included in the RRB JE Syllabus for Mathematics:

Algebra
Polynomials
Installments
Factors and Simplification
Arithmetic Simple and Compound Interest
Taxation
Shares and Dividends
Ratio and Proportion
Percentage
Time and Distance
Time and Work
Profit and Loss
Pipes and Cisterns
Mensuration
Problem on Ages
Investment
Data Interpretation
Histogram
Frequency Polygon
Bar-Diagram
Pie-Chart
Pictorial Graph

RRB JE  General Awareness Syllabus

current affairs and events taking place both at the National and International levels
new technologies
reform in Indian Railway

Rail Budget
General Awareness on Railway
Indian Polity
Current Events
Geography
Economy
Banking
Sports
Finance Marketing
Indian History

RRB JE General Intelligence & Reasoning   Syllabus

Number Series
Input-Output
Syllogism
Coding-Decoding
Word Building
Clock
Seating Arrangement
Calendar
Decision Making
Direction Sense
Visual Memory
Blood Relations
Figural Classification
Arithmetical Reasoning
Similarities and Differences
Space Visualization or Space Orientation
Analogy
Non-Verbal Series
Statement Conclusion

RRB JE  General Science  Syllabus

basic, high school level Science – Physics, Chemistry, and Biology

RRB JE Syllabus For Electronics Engineering

:

Electronic Devices
Wireless Communication
Energy Bands
Signal and Systems
Carrier Transport in Silicon: Diffusion current, Drift current, Mobility, and Resistivity
Generation and recombination of carriers
Tunnel
Control System
Junctions
Diodes
EMFT
Analog and Digital Circuits
Communication
Basics of Signal and Systems

RRB JE Syllabus For Electrical Engineering

:

Machines
Electrical and Electronic Measurements
Basics of Circuit and Power Electronics
Analog and Digital Electronics
Signals and Systems
Power and Control Systems
Circuits and Measurement Systems

RRB JE Syllabus For Computer Engineering

Languages
Computer Fundamentals
MS Office
Information Systems
Software Engineering
DBMS
Operating Systems
Computer Networks
Web Technology and Programming
Network Communication
Database
Algorithms
System Programming

RRB JE Syllabus For Civil Engineering

Estimating
Costing
General Civil Engineering
Construction or Structure Engineering and Drawing
Valuation
Soil Mechanics
Structural Analysis
Building Materials
Mechanics
Concrete Structures
Steel Structures
Construction
Water Requirements
Hydraulics
Hydrology
Highway Planning
Traffic Engineering
Projections
Errors and Adjustments
Environmental Engineering
Surveying
Coordinate System
Curves
Measurements of distance and directions

RRB JE Syllabus For Instrumentation & Measurement Engineering

Basics of Measurement Systems
Mechanical Measurement
Transducers
Analog or Digital Electronics
Circuits
Industrial Instrumentation
Process Instrumentation

RRB JE Syllabus For Information Technology

:

MS Offices
Computer Fundamentals and Organization
Information Systems
C, C++, and Java Language
DBMS
System Programming
Software Engineering
SAD
UNIX
Web Technology and Programming
Data and Network Communication
Operating Systems

RRB JE Syllabus For Mechanical Engineering

Strength of Materials
Fluid Mechanics
Heat Transfer
Theory of Machines
Kinematics of Machine
Engineering Mechanics
Machining and Machine Tool Operations
Thermodynamics
Power Engineering
I.C. Engine Cycles
Casting
Stream Tables
Thermodynamics cycles
Metrology and Inspection

RRB JE Syllabus For Chemical Engineering

Basic concepts of Fuel
Thermodynamics
Applied Chemistry
Material Science
Instrumentation and Measurement
Polymers
Computers
Environment and Pollution Control

RRB JE Syllabus For Printing Press

Mathematics and Science including Physics
Chemistry
Environment and Pollution Control
Printing Techniques
Printing Materials
Paper and Ink Technology
Digital Technology and Imaging
Control Application in Printing
Printing Surface Preparation
Offset Printing
Colour Science
Flexo and Gravure
Newspaper Printing
Basic Concepts of Computers