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  • Can running an inverter in a car damage the alternator in the long term?

    I was using an AC inverter that plugs into the DC 12v outlet in the car for several months. I left it plugged all the time even if I wasn't using it.

    A few weeks ago the car started making a whining noise (sounded like a supercharger), opened the bonnet and the alternator was getting really hot so I decided the alternator bearings needed to be replaced. Being the 21st century it was more cost effective to just replace the alternator with a new one and that is what I did - everything works fine now.

    Now I'm wondering if I should stop using the AC inverter or at least unplug it when I don't need it? The car is old and has high mileage so the alternator going bad is expected but I'm wondering if I caused it to go bad faster than it would've normally.

    I have lots of electronic gadgets connected but they have low power draws and I haven't exceeded the ratings for any circuit/fuse. Its just the inverter that doesn't have a clean draw and potentially draws lots of amps (and yes I know going from DC to AC is inefficient etc)

    3 AnswersMaintenance & Repairs6 years ago
  • NetBeans output console gives expected outputs but also errors?

    I just installed Netbeans, when I run a simple hello world in C++ the console gives me this:

    read from master failed

    : Input/output error

    Hello World!

    RUN FAILED (exit value 1, total time: 6s)

    Is this normal?

    1 AnswerProgramming & Design6 years ago
  • New to C++, advise on IDEs and CLI needed for compatibility with university systems?

    My lecturer prefers us to code everything in the Linux terminal, making the makefiles by scratch and compiling using g++ manually every time we want to run our code. The reasoning is for when they wants to assess our coursework they will run some test classes and our grades will be dependent on how to tests run. They said that using the Linux terminal for coursework will eliminate any problems with different OS/IDEs causing errors. (I don't understand how this is possible, all I can think of is the different way that Windows and Linux handle end of line and carriage return characters but nonetheless)

    I prefer using Windows (not by choice, a lot of other software I use is Windows only) and I have done most of my learning using Eclipse and NetBeans. I'm confident with the Linux terminal and I have used Linux as my primary operating system in the past but I want to code in Windows using NetBeans for this course, my question is, what do I need to do to ensure that my code will work as I expect it to when the assessment time comes?

    2 AnswersProgramming & Design6 years ago
  • If the start and end pointer values for an array are equal, what are two potential possible scenarios?

    We have a scenario with a queue data structure in the form of an array, and it has a start pointer s for first element in the queue/array, and an end pointer e for the last element.

    What are two possiblities where s = e?

    Possibility 1: A single element array.

    Possibility 2: _________________

    1 AnswerProgramming & Design6 years ago
  • Sale of Goods Act - scrap yards, auto breakers?

    I bought a radiator from a scrap yard and its leaking. Am I entitled to a refund? I removed the radiator from the scrap vehicle myself.

    I noticed some terms stuck on the wall but I didn't read it, I wasn't given a receipt either.

    Do I accept this as a lesson in not being cheap and buy a new radiator from the dealership or should I get a refund?

    3 AnswersBuying & Selling6 years ago
  • Having trouble learning how to do GUI in Java?

    So far, after first semester at uni I've learned some Java, I use Eclipse.

    I've made Java classes that do stuff. I've tested the stuff they do using JUnit test classes but I have not had a GUI or even user inputs using System.in.

    In a test class I have created an instance of an object with different data and called different methods which have taught me how to do OOP.

    All the applications I have made have been like that till now.

    My next thing is to add GUI, I've played around with Swing.

    What I really want to do is write classes then test them with test classes by creating instances of objects with different data and testing the outputs as before, but now I want to add a GUI so that the end-user can use check boxes, text fields, radio buttons etc. which will input the data and create the objects that way, and have buttons that will call certain methods and display whatever the method returns (e.g. a number) in the GUI.

    Is my approach correct or do I need to move my code to the GUI class or something?

    If I have a working application with test classes as explained above, can I easily add a GUI without changing the methods etc.?

    Thanks in advance.

    1 AnswerProgramming & Design6 years ago
  • Can I flush my brake/clutch system with DOT4?

    My owner's manual calls for DOT3 brake fluid but I can only easily get 5L of DOT4.

    I plan to bleed around 400ml of fluid from each brake in order to get all the old fluid out. I will also look at bleeding the clutch to get the old fluid out of there too.

    I have read that it is ok to use DOT4 where DOT3 is required but does this also apply to cars with a hydraulic clutch which uses the same brake fluid?

    6 AnswersMaintenance & Repairs6 years ago
  • Are SSDs reliable?

    My laptop and desktop hard disk drives have both failed within the same week. Both are clicking and buzzing but they will load up the OS after a few attempts. The desktop is a Maxtor that has lasted 6 years. The laptop is a ThinkPad and has the original Western Digital drive which has lasted about 4 years.

    I'm thinking of replacing both with SanDisk SD6SB1M-128G-1022I X110 128GB Enterprise Class 24x7 SATA 3 Performance SSD but I've heard that SSDs can fail within a few months of usage.

    I think that removing the mechanical parts and motors is a good idea because its those parts that fail first but SSDs are still a new thing and I want to know if its a good buy that will last years and years.

    2 AnswersDesktops6 years ago
  • Can't get my guitar intonation and string action set up right?

    I've been trying to fix the intonation on my fake Stratocaster.

    The action near the nut is normal, not too low but not high.

    The action at the higher frets is too high despite having the saddles on the bridge set at the lowest possible height.

    The saddles are held in by spring loaded screws, is that where the intonation should be adjusted or from the saddles?

    Should I switch to thinner strings? I have Ernie Ball Hybrid Slinky strings on it now.

    7 AnswersPerforming Arts6 years ago
  • MySQL server files and uploading to server after using XAMPP?

    I have create a website using PHP which interacts with a MySQL database. I created the databases from the command line and the website using Notepad++. I've never used myadmin or other GUI database manipulation software.

    To test everything, I used XAMPP Apache and MySQL. Everything works very well on my localhost. The files are stored in their default locations (htdocs, mysql etc)

    I need to get everything online now. I have a webspace which I have uploaded basic HTML "hello world" pages using FileZilla to test it out.

    I have uploaded the contents of the htdocs folder to the webspace and I can open all the HTML webpages remotely but I don't know what to do with the database files.

    I tried using the mysqldump command on a test database but I don't know where the output file went or what to do with it.

    Thanks in advance.

    2 AnswersProgramming & Design6 years ago
  • My router has a USB port, how will an external hard drive work on it?

    I have a DLink router that has a USB 3.0 port.

    When I connect a memory stick, the drive shows up on all the computers connected to the router.

    I am thinking of getting one of those desktop external hard drives.

    Specifically the WD Elements 2TB hard drive so that everyone connected to the network can store and share files. Its powered by USB only and says it will turn off when the computer is off.

    How will it react when connected to a router? Will it stay on constantly and could that reduce its life span?

    3 AnswersAdd-ons6 years ago
  • Toyota Yaris oil viscosity - conflicting information?

    2000 Toyota Yaris 1.3 16v

    GSF car parts says 15W40 or 5W30

    Euro Car Parts says 10W40 or 5W30

    Castrol says 5W30

    Mobil says 0W40

    The owners manual has a confusing diagram with different temperature ratings and different engines. The reason it makes no sense to me is because there are two different 1.3L engines that were put in the Yaris and each requires different oils.

    I just bought the car with 164k miles on it and its due a service, being a high mileage engine I wanna make sure I get the correct oil.

    I live in London so temperature rating is around -10 to +20.

    5 AnswersToyota7 years ago
  • The dependency of games on different platforms?

    I have to explain the dependency of games on different platforms for an software gaming assignment... any ideas?

    1 AnswerVideo & Online Games7 years ago
  • Using the apostrophe symbol as a quotation ?

    In British English, when typing a quote or sneer quote, is it acceptable to use ' instead of " ?

    Example 1:

    John holds a "duty" to keep his room tidy.

    vs.

    John holds a 'duty' to keep his room tidy.

    Example 2:

    John said: "My room is tidy".

    vs.

    John said: 'My room is tidy".

    I was under the impression that the apostrophe ' should not be substituted for " , but I am seeing it more often in typed text.

    2 AnswersWords & Wordplay7 years ago
  • Do differential seals need to be changed along with drive shafts?

    The drive shafts in my FWD car have been removed a few times in the past.

    At present, I need to change one of the drive shafts because the CV is broken.

    Seeing as the differential seals have not been changed in the past, should I change it along with the new drive shaft?

    I have heard they become ineffective once the drive shaft has been removed and reinstalled a few times. Is this true?

    4 AnswersMaintenance & Repairs8 years ago
  • I feel something move when i rotate a cotton bud in my ear?

    My ear care regimen (if people have those) is as follows:

    In the shower, I use my regular shower gel on my fingers to make a good lather and clean the insides of my ears, then I wash the lather away with the warm water coming out of the shower, I make sure all the soap is gone.

    After my shower, I dry the insides of the ear with cotton buds.

    Recently, I can feel and hear some loose movement in my right ear when I rotate a cotton bud in the lower part of the ear.

    I know some people consider my ear washing to be bad for the ears but I can't stand the feeling of wax in my ears.

    What could the movement be? I dont think its water because I am able to remove water usually by shaking my head.

    6 AnswersOther - General Health Care8 years ago