how are the solid rocket boosters on the space shuttle ignited ?

Answer 1

in the space shuttle thr is hydrogen gas n other propelets which r ingnited by fire . hydrogen burns very fast coz its calorific value is high i.e 150 this inturn gets a huge speed 2 rocket n it goes into space

Answer 2

For the Space Shuttle SRBS, the ignition is via an electrical pulse. These rockets use a mix of aluminum and iron oxide that is extremly powerful--but also very stable. But it ignites when an electric charge is passed through it.

If you've ever used model rockets, you know they fire these hobby rockets by placing a wire attached to a car battery into the rocket engine. when they close the circuit, the rocket fires. The SRB uses essentially the same method--just on a bigger scale and a lot more precisely controlled.

Answer 3

with a small primer charge, which is in turn ignited with electricity, like dynamite or TNT.

http://en.wikipedia.org/wiki/Space_Shuttle_Solid_Rocket_Booster#Ignition