ILLUMINATION - Practice Mode

1) Which chemical composition powder gives green colour light in neon sign lamp?
Correct Answer: Zinc silicate
2) Which position the MA type HPMV lamp is to be hung for lighting?
Correct Answer: Vertically
3) Which colour light sodium vapour lamp gives?
Correct Answer: Yellow
4) Which part of sodium vapour lamp fitting provides the ignition voltage initially and acts as a choke for limiting the current subsequently?
Correct Answer: Leak transformer
5) Which lamp acts only as switch instead of giving light?
Correct Answer: Flasher
Previous Question Set Back to Question Sets Next Question Set
Try Another Topic
Try Another Quiz