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WorksheetsAET713 - SBQ1
Total questions: 10
Worksheet time: 7mins
Which of the following affects the severity of the electric shock?
The amount of the current passing through body
The path of the current
The length of time of contact with electricity
All of the above
What is the standard voltage rate in UAE?
110 V
230 V
460 V
1200 V
What is the role of an isolator in the distribution box?
To switch on and off the electricity of the distribution box manually
To protect from short circuit current
To protect from overload current
To lock the distribution box door
How many wires would you find in a three phase cable
6
3
4
5
Which of the following is NOT a type of circuit protection device?
Miniature circuit breaker
Electric meter
Residual current device
Cartridge fuse
The index of protection is a code that indicated the resistance of the equipment against?
Solids and water
Heat and resistance
Pressure and Humidity
Heat and water
What is the cause of the short circuit current?
It is a result of an accident
It is a result of bad design in the circuit
It is a result of circuit overload
None of the above
What should be the level of protection in zone 1 in the figure above?
IPX7
IPX8
IPX2
IPX4
What is the purpose of earthing?
To protect from extra charge
To protect from overheating
To protect from low power
To protect from water
What is the meaning of bonding?
Connecting all metallic parts to the earthing cable
Connecting all live cables together
Organizing cable to protect from short circuit currents
Connecting the live and neutral line together at the end of the circuit
