Engineering Questions and Answers
Why are propeller planes slower than jet planes?
Why are so many indian people engineers?
Why are so many of the world's tallest buildings shaped like phalluses?
Why are so many power stations named after Edison, when he hated alternating current?
why are some houses built with pitched roof and some with flat roofs?
Why are some street lights yellow?
why are some tall buildings referred 2 as freestanding?
why are suspension bridges called suspension bridges?
Why are tanker trucks always cylindrical and not cubes?
Why are the armature and field windings of an electric motor usually wound on an iron core?
why are the cells (area covered by a mobile phone) benzene shaped only??
Why are there so many software engineers graduating from India.?
Why are these given materials chosen for given situations?
Why are tubes in most tube guitar amps mounted upside down?
why are we using 110volts in america but 220volts in europe?
why are wires carrying electricity made of copper?
Why aren't there lightning storage devices?
Why beam column joint is crucial?
why bench vise commonly used cast iron instead of forged steel?
why by increasing voltage across capacitor current also increases?
why can aluminium be used to make aircraft body?
Why can we use the technique of measuring volume as a means of counting??
Why can we view diamond structure as FCC with a basis of 2 or as S.C with a basis of 8?
why can you get decompression sickness in engineering caissons, even thought they are not underwater?
why can't a transformer be used 2 step up dc voltage?
why can't fuel cell are not able work under 0 degree temperature?
why can't gasoline be re-refinined from recycled motor oil?
Why can't I have a robot girlfriend?
why cant men build mechanical wings and fly?
Why can't Moore's Law work forever?
why can't the radar catch the F 117-A plane ?
why can't they make artificial plant?
why can't we use alkaline batteries in small devices???
Why can't we use the maximum power theorem in case of power systems?
Why can't you put metal in a microwave?
Why can't you put metal in a microwave?
why carbon monoxide burning or blast in after boiler?
why composite (steel+concrete) structures are not familiar in india?
Why cooling tower's are hyperbolic in section?
why copper and not steel is used for winding generator coils?
Why copper become black when kept in atmosphere?
why copper is used for winding the generators?
why cupper boand used in transmission line.?
Why curved walls are more stable than straight walls?
Why did biplanes go out of style?
Why did my electrical outlet explode last night?
why did the government classify most of tesla's research?
Why did this guy chose a best answer that was completely wrong?
Why did you get into weapons engineering?
Why dish antenna is designed in that shape?
why divergent part is larger in a c d nozzle?
why do architects need to know calculus, algebra,geometry and physics?
Why do batteries generally last longer when kept in cold storage ?
why do carbide end mills run undersize?
why do construction crews spray demolitions with water?
Why do heavy tonnes of concrete weights have to be placed on the pilings before construction can begin?
Why do magnets retract and what do thet retract?
why do manhole is design to be round?
Why do manufacturers want to implement FMEA in their design, equipment and process?
why do mechanical engineers use the CAD software?
why do nurses measure input & output?
Why do old factories have that classic "saw-tooth" roof design?
why do oudin and tesla coils have spark gaps?
Why do people like to speed when its rainning?
Why do people usually take Chemical Engineering Program wherein it's quite a tough Program?
Why do Philippines use 220 volts while other countries use 110 volts?
Why do power stations generate more electricity in summer than in winter?
Why do scientists experiment on animals?
Why do solar panels have to be flat, why can we not make a square box with a magnifying lense to heatour water
why do some bonds create more dense materials than others?
why do some cars have a conductor hangind down touching the road? How does this work?
why do some factories have a stack with a flame coming out of it?
Why do some Spark plug wires have st. steel terminals on plug end and brass terminals on distributor end?
why do speaker need resistance?
why do spinning gears generate electricity?
why do tesla coils have spark gaps and capacitors?
why do tesla coils need capacitors?
Why do the lighting bulbs keep blowing?
Why do the single phase motor driven appliances experience vibration?
why do they call a monkey wrench a monkey wrench?
why do they limit the length of the (deadleg) in plumbing?
Why do thin wires melt and thick wires glow? HELP?
Why do todays toilets sound so brutally angry?
why do u have to pull a lever down, to switch the main switch off, while u pull it down to put other swtchs on
Why do UK power supplies such as battery chargers run hot in India when the voltage is almost the same?
why do voltage lines turn green,trains?
Why do we allow electronic instruments to warm-up before use?
Why do we calculate RMS velocity or RMS error & why not only error or velocity????
Why do we call the ICs as 74 series, why not by some other names?
Why do we have to study physics and chem. if we are doing computer engeneering?
Why do we have to use electricity to run our refrigerators in the winter?
why do we need to wrap the equipment before we autoclave?
why do we not make fuse for neutrals?
Why do we use capacitors in continuity checker circuit ?
why do we use dc current?
why do we use frequencies in Ghz for long distance communication?
Why do we use state equations or differential equations to represent systems mathmatically?
Why do wrist watches stop when I wear them?
why do you need a vacum pump on a diesel engine and not on a petrol engine?
Why do you need to tin gold plated terminals or leads twice? (electronics)?
Why do you think 3-phase AC is better that single phase AC?
why do you think mostly BSEE students are male?
Why do you want to work as an Engineering Technician?
Why does a boat made of steel float in water when a flat piece of steel with the same mass sinks?
why does a cylinderthat has a radius of 20in. and 16in. in height have more volume than a radius of 16in. and?
why does a electrical discharge occur?
why does a light bulb lite?
Why does a mass thermodynamically schrink when cooled down?
Why does a rubber contracts instead of expansion on heating?
Why does a spark last for a fraction of a second?
why does a washing machine use more KW when using hot water then cold water?
Why does air travel faster over the top of an airplane wing?
why does an RF signal travel in all directions?
Why does concrete get hard ?
why does copper conduct electricity but not rubber?
why does copper tubing have letters L M K instead of A B C and what do they stand for ?
why does electrical current increase in series?
why does electromagnets last only a few seconds?
why does extention cords have rubberized coating surrounding the wire inside?
why does fan rotate in anti-clock wise direction?
Why does gravity not get less as it used up?
Why does high-rise buildings require better RxLevel, in terms of mobile signal?
Why does ice not form on my car when I park it in a uninsulated garage?
why does industrial Engineers can obtain a Business admnistration or any other engineering field Bachelors Deg
Why does it take so long to repair broken water mains?
why does my clock radio buzz when I do not set the alarm?
Why does my machine not start straight away?
Why does my microwave work?
Why does my radio signal get clearer when I touch the radio?
Why does New York City pump nitrogen into the sewers?
why does refrigerator does not give us energy?(please see details)?
why does single-side band (AM) doesn't need carrier to bring its signal?
why does snow not conduct electricity?
why does tex and crimp need to be examined?
Why does the draw form a 400w MH calculate to 455w?
why does the electrical current flow into the positive side of a battery?
Why does the end of a whip crack?
why does the equipment in a fitness studio need electricity?
Why does the nozzle reduce pressure and increase velocity of fluid?
Why does the output voltage signal of an NJFET CLIPS with large input signal?
Why does the plug go hot?
why does the slinky go down steps?
Why does the transmitted power from BTS to a mobile phone higher in GSM900, as compared to GSM1800?
Why does US not follow metric system?
why doesn't glue stick to its bottle?
Why doesn't my time machine work?
why doesnt the metal sheet in the microwave not get damaged while other metal objects get damaged?
Why don't electric power lines have heated coils rapped around them?
why don't our homes in the US come standard with DC power outlets and a large rechargable battery w/ generator
Why dont overhead power cables have rubber/plastic cover so that if they fall they cant cause serious injury?
Why don't scientists make a special machine that teleports things?
Why dont two radio signals at different frequencies interfere?How does a signal actualy travel in air?
Why dont we have flying cars?
Why don't we obtain red lines in a grating spectrum (when the grating plate has 15000 rulings per inch)?
why dont we use sun light to produce electrical energy?
Why don鈥檛 we understand turbulence?
why earh wire run top of high voltage tower?
why earth is a condutor?
why ELCB used in diffrent current ratings eg: 30mA,300mA,100mA that too 30mA for domestic purpose?
why electrical flash brakes tree?
why engineering studies are important in civil engineering ?
why everyone wants to become engineer only?
Why fan blades are twisted?
Why freon gas is expanded before it passes through the evaporator.?
why generation of power stations always a multiple of 11 ?example 22 kv, 66 kv,33 kv ,132 kv etc...?
why generators are rated in KVA?
Why GRAPHALLOY bushing are used in pumps of Nuclear Power plant? Is it because of high temperature or what?
Why hasn't anyone made a reciever to interpret brain waves ?
Why hasn't inventor Nikola Tesla received the acclaim he is due?
Why hasn't someone invented a fuel injection system that only uses the vapors from the gas instead of liquid?
Why have I not received an answer from my question.?
Why have the pyramids lasted so long?
Why haven't these things been invented yet?
Why horizontal axis wind turbine are more common use in commerical rather than vertical axis wind turbine?
Why 'i' section beams are preferred than rectangular section?
why in a microwave oven metal containers are not allowed although the inner body is made of SS?
why in a parallel resonant circuit does'nt have Q(quality factor) factor?
why in certain power suplies a capacitor is connected between ground and line at the input?
Why in gas stove gas does not spread despite there is no barrier after nozzle and instead goes straight?
why in india frequncy of domestic electricity is 50 Hz while in usa its 60 Hz?
why in the markets blue pins are popular??is blue is easy to make or is it cheaper or what....?
why in trucks, the PTO can not transmit all the Hp?
Why India is very slow on path of Research and Development in any kind of Technology ?
why inductors are important ?
why is 220 volt considered single phase? Shouldn't it be double phase? There's 3 pahse.?
why is a 100 watt bulb brighter than a 60 watt bulb?
Why is a blueprint called a blueprint?
why is a closed centre hydraulic system sometimes called a direct pressure system?
why is a license exam recommended for industrial engineers?
why is a pipeline backfilled before hydro-testing?
why is aerodynamic centre used in stability and control analysis?
Why is an arched bridge sturdier than other kinds of Bridges?
Why is an ice slab of cuboidal shape holoow from the sides towards inside.?
why is bad to put aluminium in the microwave?
Why is Dead Air such a serious crime in the Radio and TV broadcasting industry?
Why is having weight in the back help torque?
why is injection moulding a suitable process to make DVD cases?
why is intensity of light bulb higher in late hours of night than in the evening?
why is iron used in magnets ??
why is it dangerous to plug in a lot of things into an outlet?