Qz lnga 20190131 Dclick Galore
In a residential type distribution system, the service is often through a single-phase incoming feeder
Select one:
True
False
Which of these components is part of an industrial distribution system
Select one:
- Circuit breakers
- Transformers
- DC supply system
- Earthing system
- All of the above
The primary purpose of statutory electrical safety regulations is
Select one:
- Safety of personnel
- Increasing production
- Ensure trouble-free operation of equipment
Which of these is correct
Select one:
- Generation normally occurs in MV level
- Sub- transmission occurs at HV level or higher end of MV level
- Distribution happens at MV level or LV
- All of the above
To ensure that the plant loads are not subjected to the voltage variations that happen in the external system, transformers are provided with on-load tap changers controlled by automatic regulation
Select one:
True
False
The power flow and voltage drop analysis module forms part of software package involving utility distribution systems
Select one:
True
False
Estimation of energy and power demand requires data such as
Select one:
- List of connected loads and locations
- Pattern of loading
- Separation of critical loads from non-critical loads
- Loads with unusual demand patterns
- All the above
In a reactor, the inductive drop reduces as the pf goes up with a phase angle shift
Select one:
True
False
Which of these statements regarding impedance is incorrect?
Select one:
- It is the effective value of resistance and reactance of a system
- For zero impedance in a particular system, the fault current would be infinity
- If impedance is very high, the fault current would be negligible
- None of the above
Base impedance is given by
Select one:
- base MVA / base (kV)2
- (kV)2 / MVA
- kV / (MVA)2