Description : What are some mundane inventions, that, after years of taking them for granted, at some point saved your bacon?
Last Answer : Seat belts for vehicles. Public wash rooms.
Description : Is there a way to look up railroad crossing train times?
Last Answer : My railroad is Amtrak and can sometimes run 45 minutes to and hour late. Good luck with avoiding crossing by calculating when they’ll be at a crossing.
Description : Is the sound from the warning alert system?
Last Answer : Sure seems like it. He looked down and the hit some buttons after hearing it. It was like a beep that he had reached a speed.
Description : What happens with abandoned railroad scrap?
Last Answer : When they took up the tracks on the backside of my property, I got the land, they took the rails for recycling, the ties were free for the taking by anyone who wanted them.
Description : I am on a train travelling at 100 mph.I jump up from a standing position,why do i land on the same spot?Why have i not landed further down the train?
Last Answer : Because you’re also going 100 mph.
Description : how does a train stay on the tracks?
Last Answer : Gravity.
Description : Why are DC motors used in trains and not AC motors ?
Last Answer : The reason is torque. torque is inversely proportional to speed..i.e when th knowe train comes to rest position to motion.. initial speed is zero..so it requires high starting torque for ... current will flow through field and armature coils then maximum torque is available at the intial condition.
Description : Describe the reason of using dc series motor for electric trains.
Last Answer : Electric trains require an inverse torque speed characteristics for proper operation. That is a higher torque is required at start (when speed is nil or low) and as the train picks up ... torque - speed characteristics of DC series motors match, these motors are suitable for electric trains
Last Answer : The voltage used for suburban trains in D.C. system is usually 600 to 750 V.
Description : Do electric trains have gears?
Last Answer : Electric trains have gears for speed variation. This is because it is not easy to run a motor at diffrent speed of your choice.