Placement Papers - HAL

Why HAL Placement Papers?

Learn and practice the placement papers of HAL and find out how much you score before you appear for your next interview and written test.

Where can I get HAL Placement Papers with Answers?

IndiaBIX provides you lots of fully solved HAL Placement Papers with answers. You can easily solve all kind of placement test papers by practicing the exercises given below.

How to solve HAL Placement Papers?

You can easily solve all kind of questions by practicing the following exercises.

HAL PAPER - 18 NOV 2008 - KOLKATA

Posted By : Poojitha Rating : +41, -4
Hi Friends

Pattern 160 Questions total.
20 GK and English, 20 Aptitude, 120 Technical questions

In GK
- From which of the following the sentence is taken from "SATYAMEVA JAYATHE". And the options were ramayana, upanishad.etc
- How many seats will be there in Rajyasabha:

English questions were easy:

Technical:

concentration on Analog Electronics
- wein bridge oscillator has which feedback (Ans.both positive and nagative)
- what is cascode amplifier?
- High Zin & Zout amplifier requires --- topology (Ans current series)
- 2 problems on finding gain with feedback and change of feedback gain with change in gain.(Just formula substitution)
- 2 problems on power amplifiers (some dissipation power is given and we have to calculate ouput current or something)
- 2 to 3 questions on RC coupled amplifier (theoritical)
- problem on ni, pi intrinsic concentrations And if the material is doped with p-type then what is correct from the following options were: a) ni.pi=np     b) ni+pi=np etc.
- porblem on zener diode one qst from Hall effect ie in which direction does the force or something act..
- 2 questions from op-amps (easy)

Control system
- correct order to increase stability of a system... options were
gain, -feedback, derivative control
-feedback, gain, derivative control
derivative control, gain, -feedback

- The -ve real axis nyquist plot is mapped into --- in bode plot options were -180 phase shift line180 phase shift line
10dB line etc.....which of the following is time domain techniques of system stability  nyquist, root locus, polar plot, bode plot

- one problem on bode plot (just verification)
- problem on finding resonant frequency given Ch.equation

Communication
- an FM wave is passed trough a frequency trippler what is its modulation index(given modulation index of FM wave)
- power problem on AM
- preemphsis is used for

some questions on D.electronics easy
- one questions from optics (given R.index, Frequency, and asked to find out wavelenght)
- one questions from waveguides (which of the following modes are possible)
- 2, 3 questions from antennas
- yagi uda antenna contains what?options given

- Ft of guassian pulse is --- optins guassian, rayleigh,etc...
- psd of white noise is --- options uniform, non uniform etc...
- some questions on correlation
- h(t)=ePOW(-kt) and i/p is sinwt then what is o/p --- (signals)
- 12, 1 ohm ressistors are used as an edges to form a cube then what is Req b/w two diagnolly opposite corners of the cube
- one problem on finding time constant for a ckt of RLC
- one problem on resonance given some parameters we have to calculate the current through L at resonance..
- one theory question on signal flow graph
- theory questions on oscillators
- questions on F.seris (what terms it contain if some condiion is satisfied)

Author : Methari Srinivas