1. বাংলাদেশের বৃহত্তর জেলা কতটি?

১৭টি

২০টি

১৬টি

১৯টি

2. বাংলাদেশের কুয়েত সিটি বলা হয় কোন অঞ্চল কে?

বরিশাল

চট্টগ্রাম

খুলনা

খুলনা

3. Starters must be provided for all motors having a rating greater than _ watt

746

375

1000

1500

4. The HRC fuse provide best protection Against

Overload

Fire

Short-circuits

Sparking

5. The least expensive form of over current protection is provided by

Rewirable

HRC fuse

Circuit breaker

HBC fuse

6. It’s a good practice to connect ground wire for a building electrical system to a _pipe

Steam

Gas

Cold water

Vent

7. A co2 fire extinguisher is specifically useful for putting out fires started by

Oily rags

Paper

Electricity

Dry wood

8. Differential relays are installed to protect the equipment against

Reverse current

Internal faults

Over currents

No voltage

9. The letters T.P.D.T. identify a

Conduit

Switch

Thick wire

Fuse

10. Charging current in a transmission line

Increase line losses

Decrease line losses

Increase the line current

None of above