WorksheetsEarthing Systems
Total questions: 10
Worksheet time: 9mins
Ground resistance should be as designed such that
grounding resistance should be as low as possible
grounding resistance should be as low as possible
grounding resistance should be always zero
none of above
Generally grounding is provided for
safety of equipment only
safety of human beings only
safety of equipment & human beings
none of above
Moisture content in soil ______ the earth soil resistance
increases
decreases
does not affect
none of the above
Fuse wire should possess
High specific resistance and high melting point
High specific resistance and low melting point
Low specific resistance and low melting point
Low specific resistance and high melting point
H.R.C. fuses stands for
High rating of current
High rupturing capacity
High resistance capacity
None of these
Miniature Circuit Breaker is a
rewireable breaker
circuit breaker
fuse
none of above
Rewireable type of fuse is also called as
easily replaceable fuse
Cartridge fuse
semi-enclosed fuse
None of above
MCB operation works on principal of
Electromagnetic sensing devices
Thermal sensing devices
Electromagnetic & Thermal sensing devices
none of the above
Filling material in HRC fuse is used for
insulation of fuse element
fill the empty space
absorb the heat produced
none of above
Advantage(s) of MCB :
Simple to resume the supply
Handling is electrically safer
Reusable
All of the above
