Tell me about yourself

About 90% of the interviews start with this question.
Start with the present and tell why you are well qualified for the position. Remember that the key to all successful interviewing is to match your qualifications to what the interviewer is looking for. In other words you must sell what the buyer is buying. This is the single most important strategy in job hunting.


You can follow the following procedure:

  1. Tell your name first, only if the interviewer doesn't called you by your name.
  2. Location from where you belong.
  3. Higher education and college name.
  4. Strengths
  5. Hobbies
  6. Achievements- in brief
  7. Any course you have done regarding the post required
  8. Project Work
  9. Work experience if any
 
DO's & DON't:

  1. The answer must not exceed 2-3 minutes.
  2. Don't mention your weaknesses.
  3. Don't mention your parents name and school name.
  4. End the answer with your strong point because there are more chances that your next question rises related to that point.
  5. No need to tell them about your percentage, i.e. mentioned in your resume.
  6. Whatever you say must be true, they can easily figure out if you are fake.
  7. Don't look like you memorized the answer.
  8. Be optimist
  9. Short is sweet, they don't want to hear a long story form you.
  10. They can interrupt you in between and cross question you. Be prepared for that.

[...]

GAIL Format


GAIL will take a written test for the post of Executive Trainee. Written test will be of objective type and will contain 150 MCQs. Duration of the exam is 2 hours and question booklet will be in English only. The GAIL India Limited Written Test will have following two parts:
Part-I : Knowledge of the subject Finance & Accounts – 100 questions
Part-II : General Aptitude Test – 50 questions. It is common for all.
Negative Marking:- For each wrong / multiple answered question 1/4th mark will be deducted.


[...]

BHEL, SAIL, ONGC, ECIL Syllabus

These PSUs contains 50% technical + 50% (Aptitude, General Knowledge & English)


APPLIED MECHANICS AND DESIGN

Engineering Mechanics: Free body diagrams and equilibrium; trusses and frames; virtual work; kinematics and dynamics of particles and of rigid bodies in plane motion, including impulse and momentum (linear and angular) and energy formulations; impact.

Strength of Materials: Stress and strain, stress-strain relationship and elastic constants, Mohr’s circle for plane stress and plane strain, thin cylinders; shear force and bending moment diagrams; bending and shear stresses; deflection of beams; torsion of circular shafts; Euler’s theory of columns; strain energy methods; thermal stresses.

Theory of Machines: Displacement, velocity and acceleration analysis of plane mechanisms; dynamic analysis of slider-crank mechanism; gear trains; flywheels.

Vibrations: Free and forced vibration of single degree of freedom systems; effect of damping; vibration isolation; resonance, critical speeds of shafts.

Design: Design for static and dynamic loading; failure theories; fatigue strength and the S-N diagram; principles of the design of machine elements such as bolted, riveted and welded joints, shafts, spur gears, rolling and sliding contact bearings, brakes and clutches.


FLUID MECHANICS AND THERMAL SCIENCES

Fluid Mechanics: Fluid properties; fluid statics, manometry, buoyancy; control-volume analysis of mass, momentum and energy; fluid acceleration; differential equations of continuity and momentum; Bernoulli’s equation; viscous flow of incompressible fluids; boundary layer; elementary turbulent flow; flow through pipes, head losses in pipes, bends etc.

Heat-Transfer: Modes of heat transfer; one dimensional heat conduction, resistance concept, electrical analogy, unsteady heat conduction, fins; dimensionless parameters in free and forced convective heat transfer, various correlations for heat transfer in flow over flat plates and through pipes; thermal boundary layer; effect of turbulence; radiative heat transfer, black and grey surfaces, shape factors, network analysis; heat exchanger performance, LMTD and NTU methods.

Thermodynamics: Zeroth, First and Second laws of thermodynamics; thermodynamic system and processes; Carnot cycle. irreversibility and availability; behaviour of ideal and real gases, properties of pure substances, calculation of work and heat in ideal processes; analysis of thermodynamic cycles related to energy conversion.

Applications: Power Engineering: Steam Tables, Rankine, Brayton cycles with regeneration and reheat. I.C Engines: air-standard Otto, Diesel cycles. Refrigeration and air-conditioning: Vapour refrigeration cycle, heat pumps, gas refrigeration, Reverse Brayton cycle; moist air: psychrometric chart, basic psychrometric processes. Turbomachinery: Pelton-wheel, Francis and Kaplan turbines — impulse and reaction principles, velocity diagrams.


MANUFACTURING AND INDUSTRIAL ENGINEERING

Engineering Materials: Structure and properties of engineering materials, heat treatment, stress-strain diagrams for engineering materials.

Metal Casting: Design of patterns, moulds and cores; solidification and cooling; riser and gating design, design considerations.

Forming: Plastic deformation and yield criteria; fundamentals of hot and cold working processes; load estimation for bulk (forging, rolling, extrusion, drawing) and sheet (shearing, deep drawing, bending) metal forming processes; principles of powder metallurgy.

Joining: Physics of welding, brazing and soldering; adhesive bonding; design considerations in welding.

Machining and Machine Tool Operations: Mechanics of machining, single and multi-point cutting tools, tool geometry and materials, tool life and wear; economics of machining; principles of non-traditional machining processes; principles of work holding, principles of design of jigs and fixtures

Metrology and Inspection: Limits, fits and tolerances; linear and angular measurements; comparators; gauge design; interferometry; form and finish measurement; alignment and testing methods; tolerance analysis in manufacturing and assembly.

Computer Integrated Manufacturing: Basic concepts of CAD/CAM and their integration tools.

Production Planning and Control: Forecasting models, aggregate production planning, scheduling, materials requirement planning.

Inventory Control: Deterministic and probabilistic models; safety stock inventory control systems.

Operations Research: Linear programming, simplex and duplex method, transportation, assignment, network flow models, simple queuing models, PERT and CPM.

[...]

Mechanical Engineering


MECHANICAL ENGINEERING
1. An impulse turbine
(A) Makes use of a draft tube
(B) Always operates submerged
(C) Converts the pressure head into velocity head through the vanes
(D) Is most suited for low head installations

2. Power required to drive a centrifugal pump is directly proportional to
(A) Diameter of its impeller
(B) Square of diameter of its impeller
(C) Cube of diameter of its impeller
(D) Fourth power of diameter of its Impeller

3. The locus of the common point on the two meshing spur gears is known as
(A) Addendum circle
(B) Duodenum circle
(C) Pitch circle
(D) Base circle

4. When there is a reduction in amplitude over every cycle of vibration then the body is said to have
(A) Free vibration
(B) Forced vibration
(C) Damped vibration
(D) Natural vibration

5. For machining at high speed the tool material should have
(A) Wear resistance
(B) Red hardness
(C) Toughness
(D) All of these

6. MIG welding is
(A) A gas welding process
(B) An electric resistance welding process
(C) A electric resistance welding process
(D) A forge welding process involving high temperatures and low pressures

7. The ability of sand to permit the metal to shrink when it solidifies is known is
(A) Plasticity (B) Permeability
(C) Collapsibility (D) Cohesiveness

8. Rivets are generally specified by
(A) Overall length
(B) Shank diameter
(C) Thickness of plates to be jointed
(D) Diameter of head

9. Which of the following is steady flow compressor
(A) Reciprocating compressor
(B) Centrifugal compressor
(C) Voot blower
(D) Vane blower

10. A closed cycle gas turbine works on
(A) Carnot cycle (B) Rankine cycle
(C) Brayton cycle (D) Joule cycle

11. Thermal conductivity of solid metals
(A) Decreases with rise in temperature
(B) Does not vary with temperature
(C) Increases with rise in temperature
(D) Remains constant with rise in Temperature

12. During adiabatic saturation process, air property which remains constant, is known as
(A) Wet bulb temperature
(B) Dry bulb temperature
(C) Relative humidity
(D) Specific humidity

13. Bell-Coleman cycle as applied to
refrigeration operates
(A) On open air system
(B) On vapour compression system
(C) On vapour absorption system
(D) On none of these

14. The gears in which axes of the shaft connected by them, intersect, are known as
(A) Spur gears (B) Bevel gears
(C) Spiral gears (D) Gear train

15. Shot peening
(A) Is done at re-crystallization temperature
(B) Changes the crystalline structure at materials
(C) Improves the fatigue life of small parts
(D) Refines the grain structure

16. In a bomb calorimeter the heat released by the fuel is absorbed by
(A) Atmospheric air
(B) Water
(C) Metal container
(D) Bomb, water and metal container

17. Nitriding is done
(A) On low carbon steels only
(B) To impart blue colour to steels
(C) To improve machinability
(D) To increase surface hardness

18. The extent of cold work that a metal can withstand depends on
(A) Purity of metal
(B) Carbon percentage
(C) Ductility
(D) Room temperature

19. Which engine has the highest air fuel ratio
(A) Petrol engine (B) Gas engine
(C) Diesel engine (D) Gas turbine

20. Annealing of steels is done to
(A) Remove internal stresses
(B) Produce soft core under hard surface
(C) Produce hard core under soft surface
(D) Introduce capacity to withstand shocks
[...]

General Engineering


GENERAL ENGINEERING

1. The probability of hitting a target from one gun 9/10, from another gun is 7/10. If both gun are fired at the same time, the probability of hitting the target is
(A) 2/20
(B) 63/100
(C) 16/20
(D) 63/20

2. If the three vectors a, b and c are coplanar , then the missed product a x b. c is
(A) Zero
(B) Non-Zero
(C) Unity
(D) None of these

3. When a body hits an obstacle, the force with which it hits the obstacle depends upon its
(A) average velocity
(B) velocity at the instant of collision
(C) initial velocity
(D) all of these

4. The wavelength of visible light is of the order of
(A) 1µm
(B) 100 µm
(C) 1mm
(D) 1 Å

5. Whenever a source of sound moves towards an observer
(A) the frequency heard by the observer is less than that of the source
(B) the frequency heard by the observer is greater than that of the source
(C) the frequency heard by the observer is unchanged
(D) the wavelength of sound heard is greater than that of the sound emitted

6. Moving electric charges will interact with
(A) electric field only
(B) magnetic field only
(C) both of these
(D) none of these

7. Gamma radiation is most similar to
(A) sound waves (B) X-ray
(C) Alpha particles (D) neutrons

8. The fundamental particle responsible for keeping the nucleus together is
(A) meson
(B) anti proton
(C) positron
(D) muon

9. Air contains 21% oxygen by volume and the rest nitrogen. If the barometer pressure is 740 mm of Hg the partial pressure of oxygen is close to
(A) 155 mm of Hg
(B) 310 mm of Hg
(C) 465 mm of Hg
(D) 162 mm of Hg

10. In the electrolytic cell
(A) electrical energy is converted into chemical energy
(B) chemical energy is converted into electrical energy
(C) mechanical energy is converted into potential energy
(D) potential energy is converted into kinetic energy

11. The force required to maintain a body at constant speed in free space is equal to 
(A) the mass of the body
(B) zero
(C) the weight of the body
(D) the force required to stop it

12. If the length of a spring is halved, the spring constant becomes
(A) half
(B) 1/4th
(C) double
(D) four times

13. The coefficient of static friction depends on
(A) the material of the bodies in contact
(B) the quality of surface finish of the bodies
(C) the presence of foreign matter between the surface
(D) all of these

14. The units of angular impulse in SI system are
(A) Nms
(B) Ns
(C) Nm/s
(D) Ns/m

15. Stainless steel contains iron and
(A) Chromium and nickel
(B) Chromium and carbon
(C) Nickel and carbon
(D) Chromium and manganese

16. The property of material by which it offers resistance to scratching or indentation is called
(A) Brittleness
(B) Hardness
(C) Toughness
(D) Resilience

17. The failure of a material due to repeated stressing is known as
(A) Creep
(B) Fracture
(C) Fatigue
(D) Brittle Fracture

18. The electric device which blocks DC but allows AC is called
(A) Capacitor
(B) Inductor
(C) Amplifier
(D) Transducer

19. When a charge is moved from one point to another in an electric field, the work done is
(A) independent of the path
(B) zero along the direction of the field
(C) measured in Joules per metre
(D) measure in Volt per metre

20. A capacitor with lowest leakage is
(A) Paper
(B) Ceramic
(C) Polyester (D) Mica

21. A zener diode operates
(A) In an extremely high forward bias
(B) In an extremely low reverse bias
(C) In an extremely low forward bias
(D) In a reverse bias higher than laid down voltage

22. The specific gravity of a lead acid cell is often used as a measure of its
(A) Rate of discharge
(B) Operating temperature
(C) State of charge
(D) Life expectancy

23. An uniformly distributed load is one which
(A) Acts at a point on a beam
(B) Spreads uniformly over the whole length of a beam
(C) Varies uniformly over the whole length of a beam
(D) loads the beam from one end only

24. A steam engine device which keeps the speed of the engine, all loads, constant is known as
(A) Flywheel
(B) Eccentric
(C) Connecting rod
(D) Governor

25. The refrigerant hiving the lowest freezing point is
(A) Ammonia
(B) Carbon dioxide
(C) Freon – 11
(D) Freon – 22

26. Heat and work are
(A) Path functions
(B) Properties of a substance
(C) Point functions
(D) Absolute units

[...]

General Engineering - Solved


1. Two free parallel wires carrying current in the opposite directions

(a) Attract each other
(b) Repel each other
(c) Do not effect each other
(d) Get rotated to be perpendicular to each other

Ans.(b)
2. All the magnetic materials looses their magnetic property when

(a) Dipped in water
(b) Dipped in oil
(c) Brought near piece of iron
(d) Strongly heated

Ans.(d)
3. Potassium paramagnet is used for

(a) Dechlorination
(b) Improving colour
(c) Reducing acidity
(d) Reducing hardness

Ans.(b)
4. Which of the following material has the highest carbon percentage?

(a) Cast iron
(b) Mild steel
(c) High carbon steel
(d) Stainless steel

Ans.(a)
5. Which of the following paints is most fire resistant

(a) Bituminous paint
(b) Asbestos paint
(c) Aluminum paint
(d) Synthetic paint

Ans.(b)

6. The gas which is mainly responsible for the explosion in sewers is

(a) Methane
(b) Ethane
(c) Ammonia
(d) Carbon- monoxide

Ans.(d)
7. The Wind screen of car made of

(a) Sheet glass
(b) Wired glass
(c) Laminated glass
(d) Flint glass

Ans.(c)
8. Which of the welding process is used for welding of structures?

(a) Gas welding
(b) Fusion welding
(c) Thermic welding
(d) Arc welding

Ans.(d)
9. In a d.c generator, following losses will be minimum

(a) Copper loss
(b) Iron loss
(c) Friction loss
(d) Shunt field copper loss

Ans.(b)
10. Corona loss is less when the shape of the conductor is

(a) Circular
(b) Flat
(c) Oval
(d) Independent of shape

Ans.(a)

11. The core of the transformer is assembled with laminated sheet so as to reduce

(a) Hysteresis loss
(b) Copper loss
(c) Magnetic noise
(d) Eddy current loss

Ans.(d)
12. Which of the following instrument is used for measuring the rate of flow of liquid of pipes

(a) Hydro meter
(b) Venturi meter
(c) Viscometer
(d) Falter pump

Ans.(b)
13. The proper use of lubricants cannot reduce

(a) Static friction
(b) Inertia
(c) Sliding friction
(d) Rolling friction

Ans.(b)
14. Infra red radiation can be detected by

(a) Spectrometer
(b) Pyrometer
(c) Nanometer
(d) Photometer

Ans.(b)
15. Which of the following is used in optical fibers

(a) Total internal reflection
(b) Scattering
(c) Diffraction
(d) Refraction

Ans.(a)

16. Metal attains super- conduction properties below the temperature of

(a) 0 deg K
(b) 100 deg C
(c) 100 deg K
(d) 10 deg K

Ans.(d)
17. Powder clinges to the skin because of following property

(a) Adhesion
(b) Cohesion
(c) Surface tension
(d) Capillary action

Ans.(a)
18. The sparking at the brushes in the d.c generator is attributed to

(a) Quick reversal of current
(b) Reactance voltage
(c) Armature reaction
(d) High resistance of the brushes

Ans.(c)
19. D.C series motor should always be started with load because

(a) At no load it will rotate at dangerously high speed
(b) At no load it will not develop high starting torque
(c) It cannot start without load
(d) It draw a small amount of current at no load

Ans.(a)
20. A tunnel diode is

(a) High resistivity p-n junction diode
(b) A slow switching device
(c) An amplifying device
(d) A very heavily doped p-n junction diode

Ans.(d)

21. The effective channel length of a MOSFET in saturation decreases with increase in

(a) Gate voltage
(b) Drain voltage
(c) Source voltage
(d) Body voltage

Ans. (b)
22. The ON voltage and forward breakover voltage of an SCR depends on the

(a) Gate current alone
(b) Band gap of the semiconductor alone
(c) Gate current and the semiconductor band gap respectively
(d) Semiconductor bandgap and the gate current respectively

Ans.(c)
23. Negative feedback in amplifier

(a) Improves the signal to noise ratio at the input
(b) Improves the signal to noise ratio at the output
(c) Does not affect the signal to noise ratio at the output
(d) Reduce the distortion.

Ans.(b)
24. An ideal Op- Amp is an ideal

(a) Voltage controlled current source
(b) Voltage controlled voltage source
(c) Current controlled current source
(d) Current controlled voltage source

Ans.(b)
25. One of the following types of noise becomes of great importance at high frequencies. It is the

(a) Shot noise
(b) Random noise
(c) Impulse noise
(d) Transit- time noise

Ans.(d)

26. Piezoelectricity effect is the polarization of a dielectric under the influence of

(a) Light
(b) Mechanical stress
(c) Electrical stress
(d) Heat

Ans.(b)
27. Entropy of mixture of two gases after sudden mixing is

(a) Greater than
(b) Less than
(c) Same as sum of entropy of individual gases
(d) Unpredictable

Ans.(a)
28. If air filter is removed in a petrol engine, the air/fuel ratio will

(a) Increase
(b) Decrease
(c) Increase and decrease
(d) Remains unchanged

Ans.(a)
29. In a two stage compression , inter -cooling is used for

(a) Reducing work of compression in the first stage
(b) Reducing temperature in the first stage
(c) Reduced work in the second stage
(d) Reducing work and temperature in the second stage

Ans.(d)
30. Which component of refrigeration system controls the flow of refrigerant

(a) Expansion valve
(b) Condenser
(c) Compressor
(d) Evaporator

Ans.(a)

31. Laser beam welding has widest application in

(a) Mass production in heavy industry
(b) Jobbing industry
(c) Electronic industry
(d) Structure and bridge work

Ans.(c)
32. In Equation x-2y+3z=0 and 2x+5y+3z=0, y equals

(a) 0
(b) 1
(c) 2
(d) 3

Ans.(a)
33. If a system of equation has one or more solution it is called

(a) Compatible
(b) Consistent
(c) Homogeneous
(d) Simultaneous

Ans.(b)
34. In a microprocessor the register which holds the address of the next instruction to be fetched is

(a) Accumulator
(b) Program counter
(c) Stack pointer
(d) Instruction register

Ans.(b)
35. The mnemonics used in writing a program is called

(a) Assembly language
(b) Fetch cycle
(c) Microinstruction
(d) Object program

Ans.(a)

36. For which of the following devices, is DMA the most suitable
(a) Keyboard
(b) Mouse
(c) Joy stick
(d) Hard stick

Ans.(d)

37. In real time operating system, which of the following is the most suitable scheduling scheme?

(a) Round robin
(b) First come first served
(c) Random scheduling
(d) Preemptive

Ans.(d)
38. In client –server system , data is usually stored on the

(a) Server
(b) Client
(c) Network
(d) None of the above

Ans.(a)
39. Identify the natural

(a) LISP
(b) PROLOG
(c) Both (a) and (b)
(d) Neither (a) and (b)

Ans.(c)
40. An interrupt that can temporarily ignored by the counter is known as

(a) Vectored interrupt
(b) Non – maskable interrupt
(c) Maskable interrupt
(d) Low priority interrupt

Ans.(c)
[...]