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Apollo Electrical Engineering Interview Questions
Questions Answers Views Company eMail

What is the rating of your capacitor bank at your company.

31 45075

what is difference between AC VVVF drive & Dc VVVF drive explain their working principle?

13 33109

what are the main parts of UPS what is the function of that?

23 94535

how to calculate the size of cable for 100 kva load,?can somebody tell me with a formula

7 21072

How to calculate total harmonic distortion level(THD) in VFD? and how can we reduce harmonics?

2534





Why the rating of dc machine is in HP??/ Do reply guys..Its very important......

4 3445

why transformer ratinh is in KVA????/

8 4462

What is reason of rating of transmission line multi pal of 11 like as 11/33/66/220 ? Why not use 75 kv 23 kv line in power system ?

1196

ac and dc motor advandtage,disadvantage,aplication

2 2258

how capacitor control the power factor/

2 3733

Which Current transformer will be bigger in size, 400/5 or 400/1 & why?

2 3011

how to check three phase motor torque value?

843

My energy meter ratio is -/110/root 3,1A and connected line CT is 100/1,PT is 11kv/110 so what is the MF for meter

1 2663

how to calculate the ac and dc wire losses with calculations plz tell me

3 2620

Is electro plating what type of load whether resistive, inductive or capacitive loads

2028

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Un-Answered Questions

What's the difference between *.vsdisco and *.disco file?

903


What is DTX? Why is it used?

559


Write a function which accepts a sentence as input parameter.Each word in that sentence is to be reversed. Space should be there between each words.Return the sentence with reversed words to main function and produce the required output. for eg:- i/p: jack jill jung kill o/p: kcaj llij gnuj llik

927


HI GUYS , FOR SAP INSTITUTION ATOS I BEST OR NOT? IAM PLANNING TO LEARN SAP COURSE IN ATOS... GIVE ME UR SUGGESTION ABOT ATOS?

1640


what is associativity explain what is the precidence for * and & , * and ++ how the folloing declaration work 1) *&p; 2) *p++;

999






what is web configuration file

785


I need help with the following lab. Can anyone explain it to me on how to approach this problem. Coding would be great too !!! No busy waiting allowed. Remember that Java monitors are 'signal and continue'. The input data is called the database (DB). In this problem, it consists of a single variable initialized in the main thread, to contain the current time of day in HH:MM:SS:mmm format (mmm is milliseconds) truncated to 3 digits. Threads follow these rules: 1. Readers may all attempt to read at the same time, but NOT if a writer is writing (i.e.; the writer is in the monitor. 2. Writing is exclusive (only 1 writer at a time, no readers while writing). 3. Options: (to be specified by instructor) a. Readers have absolute priority over writers. b. Writers have absolute priority over readers c. When a reader arrives and a writer is waiting, the reader is suspended behind the writer instead of being admitted immediately. Thus, a writer waits for readers that were running when it arrived, but does not to wait for new readers. You may program this in C++ or Java. There are 4 controlling input values: 1. r – number of readers 2. w – number of writers 3. R – delay for a reader to restart 4. W – delay for a writer to restart Create the following program consisting of 1 main process (your main program) with n threads: 1. The main thread: a. Creates the 'n' threads needed. Of these, r of them are readers and w of them are writers. Starts all readers and writers. b. Waits for all 'n' threads to complete. You may use any method to detect when they are all complete. c. Prints out the resulting outputs from the threads. 2. Threads: a. When a thread starts to run, it immediately tries to enter the monitor. b. A reader thread reads the DB, outputs the exact message below, then exits: >>> DB value read =: HH:MM:SS:mmm by reader number: rr where the underlined text is replaced with actual data. c. A writer thread updates the DB with a new value (from the system time), outputs the exact message below, then exits: *** DB value set to: HH:MM:SS:mmm by writer number: ww where the underlined text is replaced with actual data. d. Each thread accesses the data a total of 10 times, exiting, then re-entering the monitor after each access. Hints: 1. File access *might* not be thread-safe, so you should be prepared to handle this. Read the documentation for the language you are using. 2. Suggested values for delays are: a. If looping, R >=1,000,000 and W>=100,000 b. If using “sleep”, then R=100 ms, W=50 ms. Additional: • Thread output is to ONE file used by ALL threads (so you need to synchronize access to it). • Readers must provide sufficient delay that results are useful (delay by R before re-trying). R is another input value. • Writers must also delay. Delay by W, updating the DB each time. W is an input. • Test your program with AT LEAST TWO different sets of values for r and w (#s of readers and writers) plus this set: r = 4, w=2. Basic operation of a thread: attempt to enter the monitor. If unsuccessful, you get put on a queue. When you get in, read or write the data (depending on type of thread), exit the monitor, wait the required delay amount, then try again. Repeat 10 times.

682


What is the protocol ?

2735


Filter badi and multiple used badi? Will the sequence matter of the badi implementation in case of multiple used badi?

91


hi,every one, i have to write the search paper on "performance policy optimization" of NGN (next generation networks). i need the material on this topic. can any body help me. please tell me any useful site where the good material is available and name of any reference book. it should be a great help for me.

698


Explain bulbs ?

783


what is eligibility for M.S

870


Explain the potential for growth in a business.

623


How one may guess the direction from which the distribution line is incoming if there is no pole plate on poles?

678


How could u display all of the cookies/cookie values for a user through a Web page in ASP?

955






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