bhel

May 19, 2019 | Author: Ravi Kapoor | Category: Amplifier, Microprocessor, Instruction Set, Computer Engineering, Electricity
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Hi, I appeared for the BHEL ET Recruitment Test-2010-11 Test-2010-11 at Haridwar on 31 st October 2010. My stream is Electrical Engineering. I would like to share my experience regarding this test. The Aptitude portion (English, General math & Reasoning; 120 questions) was easy. But, the Technical portion (Electrical (approx 80) & General Engg (approx 40); 120 questions) was difficult. The questions of Electrical Engg. were previous years’ GATE questions .This unusual and unexpected question pattern surprised surprised the candidates as the GATE questions are lengthy and take time in solving (as 3 hrs are there for solving approx 65 questions in GATE). These types of technical questions are not supposed to b e asked in this type of test where you have to solve 240 questions i n 150 minutes. In ET Test-2009-10 the Technical questions were up to the standard and not too lengthy. Questions were based on concept and were of “DEKHO“DEKHO- MARO”© type (©My Copyright reserved  ). No tiring calculations were required. But, the Non technical portion  was difficult as compared to the Non technical questions of ET-2010 ET-2010 test. Many of my friends appeared in ET Test- 2009.After taking experience from that test they started their preparation for ET2010.They focussed their preparation on Non Technical area more than technical area.But, the unexpected pattern pattern of questions put them in surprised state. Therefore I think to crack this test you have to take the following steps: For Technical Portion Completely solve all the chapters of ANY ONE OBJECTIVE Electrical Engineering GUIDE J B GUPTA  GALGOTIA PUBLICATION- OBJECTIVE Electrical Engg.  

1)    

Solve all the objective questions which are at the back of these books P S BIMBHRA-ELECTRIC BIMBHRA-ELECTRICAL AL MACHINERY  P S BIMBHRA-POWER ELECTRONICS ELECTRONICS B L THERJA  C L WADHWA-POWER SYSTEMS

Go through the previous 10 year GATE questions which are conceptual in nature. You need not practice lengthy and calculative type questions because you can’t solve them in this test as the time is quite meager. Better leave such questions and move forward. For General Engg: Basic Physics & Mechanical Engg. For Non Technical Portion Golden Rule: Attempt Non Tech portion first. Questions would be on basic maths and reasoning. Try to attempt as many here. There are only three ways to bring proficiency in non technical area. Practice Practice Practice Books recommended are:1. M Tyra 2. Made Easy: Aptitude and Reasoning Book  3. Baron’s GRE (Comparison type i.e inferential questions) 20 questions will be from this book. For Reasoning you may refer any book like Banking recruitment Guide, MAT Guide etc.   

For English: Be thorough with basic grammar and have good reading skills.

Hope you will be benefitted by reading this. Best of Luck.

Thanks & Regards Pankaj Engineer Trainee - 2011 BHEL [email protected]

Hi Friends, On October 31st I have written th e exam of BHEL In Chennai. The entire t est paper consisted of 240 questions with 5 options for each question and -1/5 marks for wrong answer with 1 mark for right answer. My Stream is Electronics The paper consisted of primarily four sections

1) 2) 3) 4)

Technical Engg (60 Questions) Basic Engg (60 Questions) Verbal Ability (60 Questions) Quantatitive (60 Questions)

A) Technical Engineering (Electronics) like electronics circuits, lic, communication system, control systems, microwave, eletronics devices, signals and system, analog circuits, digital circuits It consist of simple basics questions in the electronics field subjets

Some questions that asked in that exam are 1) Sampling theorem is used in what? (AM, FM, PCM, AM & FM) 2) What is the bandgap of germanium? 3) Which of the following elements is used for making P-type semiconductor material from intrinsic semiconductor? (Phosporous, Boron, Gallium, Gallium Arsenide) 4) Question on the power of the SSB signal of AM write to given modulation index. 5) Modulation Index of AM, FM, PM 6) Question on the values of damping factor for critically damped, underdamped, overdamped systems. 7) Which of the following modes do not exist in wave guides? (TE1, TM1, TEM1,) 8) What is the band used to send the AM signals (HF, VHF, SHF, U HF) 9) The intermediate frequency of am signal is 10) Which damping condition is normally used 11) Conversion of binary to gray codes and 2 complements sums, gate questions 12) Which oscillator is stable

The questions is 80% theory only j ust go through the books like gk publ ishers book galgotia publications from these books they asked more questions. B) Basic Engineering (Most of the questions were from physics,chemistry) 1) Questions on the friction. 2) Which type of steel is used in railway line among carbonsteel, mild steel? 3) Questions on specific gravity. 4) What is the optimum humidity to be provided by a Air Conditioner 40-55% 5) Red +green gives which colour yellow 6) Twins ores are, which is the hard iron ore, sound is high in, 1 ton is equal to 7) What is the weight of 1 cubic meter air?1.2 kg/m3 For these type of questions just go through fundamentals in 10th standard C) Verbal Ability 1) 10 Questions on spell check 2) 6 questions on comprehension paragraph 3) 10 questions on sentence correction 4) 10 questions to check whether the two statements given are i mplicit, explicit or imply each other. 5) Questions relating to relationships For this section you go through some bank po q uestions bank D) Quantitative Ability 1) 20 questions on match the following i n these you want to strong in basic mathematics For these quantitative section you just go through quiker mathematics books E) reasoning Ability 1) Average proportions based questions; age problems simple problems only 2) Work completed by 10 people in 5 days then 20 people will complete in how many days? 3) Direction sense test, word problems, coding, stament conclusions and assumptions For this section just go R.S Aggarwal books solve some bank reasoning problems

I think I give some valuable information to you about the exam be cool when you are attending the exam. Think positive you need more time consumptions for that practice in your home. God be with you i'm wishing. All the best to your great success! Regards S.Gokul For queries frankly mail me to

[email protected]

Hello everyone, i gave the BHEL exam for et on 31st Nov my branch is electronics. Here are the questions i can recollect, 1) Why Mn is added in steel.

2) Purest form of iron.wrought

3) Rail uses which type of steel. 4) Which of the metals is the poorest conductor of electricity(copper,silver etc.) 5) Laplace transform of a dirac delta function. 6) LVDT measures7) Enhancement mode occurs in which device(Jfet,bjt,mosfet,UJT) 8) Polyethene has what type of structure 9) Which of the materials is made of silica(glass,diamond) 10) Which of the materials has the least hardness(diamond,quartz,talc) 11) Which amplifier has more efficiency than class b amplifier 12) Space waves belong to which frequency range(vhf,uhf) 13) Permissible humidity in an air conditioned room 14) If S/N=43.25 db,no of levels 15) In radio receivers,Maximum image signal selectivity provided in which state-rf  amplifier,i.f.amplifier,audio amplifier,frequency mixer. 16) One of the following cannot be used to demodulate ssb-product detector,diode balanced modulator,bipolar transistor balanced modulator,complete phase shift generator. 17) Which of the following is not maxwell's equation-(a)b=uh (b)E=D/e (c)E=ed

18) VSWR 19) Sampling thereom is used in -fm,am,pcm 20) How many bits are used to address 64k memory location-3,10,16,32 21) Which of the foll flip flops is used as a latch-ttl,ecl,cmos,lsi 22) The sum s of a and b in a half adder can be implemented by using k nand gates.the value of k is -3,4,5,none of these 23) The most widely used bipolar technology for di gital ic's is-dtl,ttl,ecl 24) Class b amplifiers has less efficiency compared to -class A,class AB,class C,class A,AB and C 25) Which of the following is the most stable oscillator-wein bridge oscillator,hartley oscillator,colpitts oscillator. 26) In case of rc phase shift oscillator,the frequency of oscillations is given by1/(2TT*6^1/2*RC),1/ (2TTR*C^1/2,2TT/(RC)^1/2,2TT*(RC)^1/2 27) Barkhausen criterion for oscillator frequency is -AB=0,AB=1,AB=-1. 28) The standard if value for am receivers is-455khz,455 mhz,107 khz,10.7 mhz 29) In a radio receiver the noise i s generally increased by -mixer,local oscillator,power amplifier,power supply. 30) During the day time,ionosphere composes of -d,e,f2 layer;d,f1,f2 layer;d,e,f1,f2 layer. 31) When the modulating frequency is doubled,the modulation index i s halved and the modulating voltage remains constant.the modulation system is-am,fm,pm,any one of them. 32) Octave frequency range is specified by - w2/w1=2,w2/w1=10,w2/w1=8. 33) The gain margin is the reciprocal of the gain at the frequency at which t he phase becomes-0,90,180,270. 34) The foll system is generally preferred-overdamped,critically damped,underdamped,oscillatory. 33) The response of a control system having damping factor as unity will beoscillatory,undamped,critically damped,none of the above. 34) The foll. compensator is used to increase the damping of a heavily under damped system-phase lag, phase lead,phase lag lead, none of these.

35) In the characteristic eqn. 1+k/{s(s+1)(s+2)}=0,the centroid of the asymptotes is given by-1,-1,2,-2 36) Depth of modulation. 37) 3 zener diodes having the breakdown voltage 6 v in series,resultant voltage-6 V,18 V. 38) Fermi level in ge-0.67,1.2ev 39) which of the following plot can be directly used to determine B-Vce versus Ic for constant Ib,Vbe versus Ib for constant Vce,Vcb versus Ic for constant Ie. 40) A DVM measures-peak value,r.m.s. value,peak to peak value,average value. 41) An ideal current controlled voltage source hasRi=infinite,Ro=infinite;Ri=0,Ro=infinite;Ri=0,Ro=0;Ri=infinite,Ro=0. 42) Rotameter used to measure-flow of liquid or gas in close tube

43) Diff between true value and indicated value-static error,dynamic error,absolute error 44) No of 2:1 mux needed for 4:1 mux-2,3,4. 45) red+green-yellow 46) Superconductivity means conductivity-infinite, zero electrical resistance 47) Frequency of TE11 wave. 48) Process is irreversible if efficiency-,tem

19) Question on Maxwell question? 20) Frequences in UV range are propagated by means of? 21) Given the values of modulation i ndex u1 and u2 find overall efficency? 22) In bode plot w2/w1 decade indicates? 23) Basic question in aptitude sufficient R.S Aggarwal see Rank sequence, Blood relation, odd term out, statement conclusion, complete sentences, problem on ages, direction problems, 24) Last 20 question on comparison refer barron book or see i t's PDF in net. 25) General question like railways tracks are made up of, concurrent lines means, tenstile strength, refrigenation like how many tones requires, learn basic question on chemistry. "All the best for future aspirants" By Ankit khetrapal

Hello everyone, I gave the BHEL exam for ET on 31st Nov. my branch is Electronics. I assume you no the pattern, 240 questions, 150 mins, 120 non-technical, 60 technical, 60 General engineering. Here are the questions i can recollect: 1) Why Mn is added in steel. 2) Purest form of iron. 3) Rail uses which type of steel. 4) Which of the metals is the poorest conductor of electricity(copper, silver etc.) 5) Laplace transform of a dirac delta function.

6) LVDT measures. 7) Enhancement mode occurs in which device(Jfet, bjt, mosfet, UJT) 8) Polyethene has what type of structure 9) Which of the materials is made of silica(glass, diamond) 10) Which of the materials has the least hardness(diamond,quartz,talc) 11) Which amplifier has more efficiency than class be amplifier 12) Space waves belong to which frequency range(vhf, uhf) 13) Permissible humidity in an air conditioned room 14) If S/N=43.25 db,no of levels 15) In radio receivers, Maximum image signal selectivity provided in which state-rf  Amplifier, i-f amplifier, audio amplifier, frequency mixer. 16) One of the following cannot be used to demodulate ssb-product detector, diode balanced Modulator, bipolar transistor balanced modulator, complete phase shift generator. 17) Which of the following is not maxwell's equation-(a)b=uh (b)E=D/e (c)E=ed 18) VSWR 19) Sampling thereom is used in -fm, am, pcm 20) How many bits are used to address 64k memory location-3,10,16,32 21) Which of the foll flip flops is used as a latch-ttl, ecl, cmos, lsi 22) The sum s of a and b in a half adder can be implemented by using k nand gates. The value of k is -3,4,5,none of these 23) The most widely used bipolar technology for di gital ic's is-dtl,ttl,ecl 24) Class be amplifiers has less efficiency compared to class A, class AB, class C, class A, AB and C 25) Which of the following is the most stable oscillator-wein bridge oscillator, hartley oscillator, colpitts oscillator. 26) In case of rc phase shift oscillator,the frequency of oscillations is given by1/(2TT*6^1/2*RC),1/(2TTR*C^1/2,2TT/(RC)^1/2,2TT*(RC)^1/2 27) Barkhausen criterion for oscillator frequency is -AB=0,AB=1,AB=-1. 28) The standard if value for am receivers is-455khz, 455 mhz, 107 khz, 10.7 mhz 29) In a radio receiver the noise i s generally increased by -mixer, local oscillator, power amplifier, power supply.

30) During the day time,ionosphere composes of -d, e, f2 layer; d, f1, f2 layer;d, e, f1, f2 layer. 31) When the modulating frequency is doubled,the modulation index is halved and the modulating voltage remains constant.the modulation system is-am,fm,pm,any one of them. 32) Octave frequency range is specified by - w2/w1=2,w2/w1=10,w2/w1=8. 33) The gain margin is the reciprocal of the gain at the frequency at which the phase becomes-0,90,180,270. 34) The foll system is generally preferred-overdamped, critically damped, underdamped, oscillatory. 33) The response of a control system having damping factor as unity will be Oscillatory, undamped, critically damped,none of the above. 34) The following compensator is used to increase the damping of a heavily under damped system-phase lag, phase lead, phase lag lead, none of these. 35) In the characteristic equation. is given by-1,-1,2,-2

1+k/{s(s+1)(s+2)}=0,the centroid of the asymptotes

36) Depth of modulation. 37) 3 zener diodes having the breakdown voltage 6 v in series, resultant voltage-6 V, 18 V. 38) Fermi level in ge-0.67, 1.2ev 39) Which of the following plot can be directly used to determine B-Vce versus Ic for constant Ib, Vbe versus Ib for constant Vce,Vcb versus Ic for constant Ie. 40) A DVM measures-peak value,r.m.s. value,peak to peak value,average value. 41) An ideal current controlled voltage source has-Ri=infinite,Ro=infinite;Ri=0,Ro=infinite;Ri=0,Ro=0;Ri=infinite,Ro=0. 42) Rotameter used to measure-flow,rotations 43) Different between true value and indicated value-static error, dynamic error, absolute error 44) No.of 2:1 mux needed for 4:1 mux-2,3,4. 45) Red+green-black, violet. 46) Superconductivity means conductivity-infinite, 0. 47) Frequency of TE11 wave. 48) Process is irreversible if efficiency->50%,
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