Set 3 Practice Mode

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Q14058
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Which chemical composition powder gives green colour light in neon sign lamp?
Q14059
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Which position the MA type HPMV lamp is to be hung for lighting?
Q14060
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Which colour light sodium vapour lamp gives?
Q14061
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Which part of sodium vapour lamp fitting provides the ignition voltage initially and acts as a choke for limiting the current subsequently?
Q14062
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Which lamp acts only as switch instead of giving light?