Thursday, 6 February 2014

Test your Programming skills

PONJESLY COLLEGE OF ENGINEERING
TEST YOUR C- SKILS
  1. What will be the output of the following program?
#include<stdio.h>
int x= 40 // Global Declaration
void main()
{
int x=20; // Local Declaration
printf(“\n%d”, x);
}
  1. What will be the output of the following program?
#include<stdio.h>
void main()
{
int x= 40 //Local Variable
{
int x=20; // Most Local variable
printf(“\n%d”, x);
}
printf(“\n%d”, x);
}
Answers:
  1. 20, Whenever there is a conflict between a local variable and a global variable, the local variable will get the priority.
  2. 20 40, Now both are local variables. In this case the most local variable will get the priority.
By,
IT Department,PJCE


LOGICAL MATHS
INSERT THE MISSING NUMBER

1. 8 15 34
12 6 18
40 5 ?


a) 45 b) 30 c) 60 d) 35


2. 175 (576) 463
192 ( ) 357


a) 288 b) 82 c) 330 d) 357


3. 514, 258, 130, 66?


a) 34 b) 33 c) 36 d) 38




4. 15 7 10 12
25 5 7 ?
16 8 4 20


a) 27 b) 13 c) 23 d) 47


5. 8,17,33,67,133, ?


a) 264 b) 265 c) 266 d) 267









ANSWERS:


  1. b
(15*2) + (8/2) =34, (6*2) + (12/2) =18 Hence (5*2) + (40/2)=30
  1. c
See the difference between the numbers outside the brackets and multiply the result by 2.
  1. a
514/2 +1=258, 258/2 +1=130, 130/2 +1=66, 66/2 +1=34
  1. c
See the horizontal rows. 15+7-10= 12. Therefore 25+5-7=23
  1. d
8*2+1=17, 17*2-1=33, 33*2+1=67, 67*2-1=133,133*2+1=267.
By
JEYA PRABHA.R

IV IT  

Tech Quiz !!!

PONJESLY COLLEGE OF ENGINEERING
DEPARTMENT OF ECE
TECHNICAL QUIZ
Dear engineers, check how strong you are in your basics of electronics. The questions are given in a quiz form. So check how strong you are.
  1. In a transistor when base-width decreases with increasing collector to base voltage, this phenomenon is called
    1. Early Effect
    2. Thermal Runaway
    3. Tunneling
    4. Pinch-off
  2. The bridge used for measurement of inductance is
    1. Wheatstone Bridge
    2. Kelvin Double Bridge
    3. Anderson Bridge
    4. Schering Bridge
  3. The type of transmission used for sound in TV transmission is
    1. AM
    2. FM
    3. PCM
    4. PWM
  4. The type of transmission used for television in India is
    1. DAB SC
    2. SSB
    3. VSB
    4. SSB-SC
  5. The memory unit using only gates is
    1. ROM
    2. RAM
    3. Core
    4. Disk
  6. Most commonly used materials as photo cathode for the photoelectric emission are
    1. Barium and Calcium
    2. Cesium and Ribidium
    3. Arsenic and Boron
    4. Thorium and Tungsten
  7. In every practical oscillator the loop gain is
    1. Slightly larger than unity
    2. Slightly larger than ten
    3. Infinity
    4. Zero
  8. A series capacitance used in a filter circuit represents
    1. Low-Pass
    2. Band-Pass
    3. High-Pass
    4. None
  9. Clipper circuits are used to obtain any one of the following waveforms
    1. Sharper
    2. Rectified
    3. Fast Rising
    4. Smaller Amplitude
  10. Plasma is
    1. A medium dominated by helium
    2. A solid dielectric material
    3. A gaseous medium
    4. A ray of electrons
  11. Which is most commonly used transmission-line with television system?
    1. Twin-lead
    2. Open-wire with ceramic supports
    3. Coaxial Cable
    4. None of these
  12. Video signals have a frequency range that is spread over approximately
    1. 9 Octaves
    2. 18 Octaves
    3. 4 Octaves
    4. None of these
  13. Where is brightness control located in a TV?
    1. Audio Section
    2. Video Section
    3. Grid-cathode circuit of picture tube
    4. None of these
  14. LED is
    1. A PN junction which emits light when current passes in the forward direction
    2. A gaseous discharge glow devices
    3. Photo cell device which emits light
    4. None of the above
  15. The oscillator that has the best frequency stability is
    1. Crystal Oscillator
    2. Hartley Oscillator
    3. Colpitt's
    4. Tuned Collector Oscillator




Answers: 1) a 2) c 3)b 4)c 5)b 6)c 7) a 8)c 9) d 10)c 11) c 12) c 13) a 14) a 15) a

Saturday, 25 January 2014

SAE SUPRA VIRTUAL WINNERS!

Mechanical Engineering students of Ponjesly College of Engineering calling themselves the "Sky Riders" got selected for the virtual event of national level racing contest "SUPRA" conducted by prestigious SAE(http://suprasaeindia.org/). This is the only team to have qualified from this part of the state.The Team Members namely C. Joseph Mervin, Richu john, S.M. Jenin Ranjith, M. Krishna kumar, V. Anish, Alwin Hadrian, Alwin P.J, S. Anish, and Nithin .M.S had participated in the Virtual Event held at Odissa, under the guidance of their professor Dr. P.M. Diaz. In the real platform the expected cost is around 14.5 lakhs for which the students are on the lookout of sponsors.

All the Best for the final event!


Click here for the website link : http://www.skyridersfsae.com/

Wednesday, 22 January 2014

Congratulations!

Jomson Jose, J. Shiju, Arun Bharath and Asif Mahideen  final year Mechanical Engineering students of Ponjesly College of Engineering under the guidance of Prof. S. Ajith Kumar got the first prize at world's largest International Engineering Exhibition and National students project competition, "ELECRAMA 2014" held at Bangalore International Exhibition Centre from 8th January 2014 to 12th January 2014.
This honour was awarded for their project titled "DESIGN AND IMPLEMENTATION OF AN ENVIRONMENTAL CLEANER ROBOT ", named "AJAS" 

AJAS is an amphibian robot, designed for environmental cleaning purposes. This is a solution for the cleaning problems in Indian society. After several evaluations of Juries they got the first prize with the cash award of 2 lakhs, Trophy and Certificates of Merits for their project. Also this project was awarded as the Best Innovation in India.










Wednesday, 15 January 2014

Engines and Related



Click here to learn about marine engines and related stuff : http://marinenotes.blogspot.in/


CAR ENGINES - Explained!


Saturday, 11 January 2014

Who is Bjarne Stroustrup

 

No engineering student should pass out without knowing this answer!

Click here to find the answer and lots more : www.stroustrup.com

Bjarne Stroustrup: Why the Programming Language C Is Obsolete


C should have been integrated as a subset of C++, says Stroustrup.