Illumination MCQ with Answers

Illumination MCQ with Answers

11) Which chemical composition powder gives green colour light in neon sign lamp?

Answer is:

Zinc silicate

12) Which position the MA type HPMV lamp is to be hung for lighting?

Answer is:

Vertically

13) Which colour light sodium vapour lamp gives?

Answer is:

Yellow

14) Which part of sodium vapour lamp fitting provides the ignition voltage initially and acts as a choke for limiting the current subsequently?

Answer is:

Leak transformer

15) Which lamp acts only as switch instead of giving light?

Answer is:

Flasher