ME3011FP Tut 33

The part of the fuse which is designed to melt when the fuse operates is known as fuse

• link

• factor

• contact

• element

The type of fuse shown in Figure here is a

• HBC fuse

• HRC fuse

• cartridge fuse

• rewirable fuse

What are found in an insulated box and removed for the attachment of conduits?

• Boxes

• Knockouts

• Poles

• Wires

A blown fuse must be

• reset

• repaired

• replaced with a wire

• replaced with a new fuse

The advantage of a cartridge fuse is it

• very fast acting

• small physical size

• fuse element is cheap to replace

• can discriminate between a starting surge

To minimize arcing when the fuse element ruptures the ceramic tube of a HRC fuse is filled with

• mineral oil

• silica filling

• sodium chloride

• magnesium oxide

Which of the following switches has a protruding dolly with a positive up and down movement?

• Grid type

• Plate type

• Single pole rocker type

• Single pole tumbler type

Which one of the following types of fuse must be clamped into position when in use?

• Solid type

• Cartridge type

• Rewirable type

• High breaking capacity type

What are used to make or break circuits non-automatically?

• Circuit-breakers

• Fuses

• Relays

• Switches

Figure here shows a

• Single pole switch

• Single pole double throw switch

• Double pole switch

• Double pole double throw switch