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Distribution MCQ

1. ATS has faster response than STS
  • True
  • False


2. Armoring is used to protect the cable layers from mechanical stresses
  • True
  • False


3. We can use 3 Poles ATS two switch between two different sources (Transformer & Generator)
  • False
  • True


4. Vacuum CB has global warming potential far lower than SF6 circuit breaker.
  • False
  • True


5. ELCB can detect the short circuit current faster than MCB ?
  • True
  • False


6. Total Diversified Load is higher than Total Demand Load
  • True
  • False


7. The purpose of form of separation in LV Switchgear is
  • Limitation of the probability of initiating arc faults.
  • All of the Above
  • Protection against contact with live parts
  • Protection against the passage of solid foreign bodies from one unit of an Assembly to an adjacent u


8. Fuses response against Short Circuits is faster than circuit breaker?
  • True
  • False


9. One of the importance of Street lighting is contribute to commercial and social use at night of town centers and tourist locations
  • True
  • False


10. PVC has lower thermal resistivity than XLPE
  • True
  • False


11. Which one of the following is a factor that affecting artificial lighting design process
  • Application
  • Atmosphere
  • Architecture
  • All of the above


12. We used ELCB in the wet area applications
  • False
  • True


13. 3 Pole LBS used with single phase systems
  • False
  • True


14. Trip unit used in MCB is
  • Magnetic Only Trip Unit
  • Termal/Magnetic Trip Unit
  • Electronic Trip Unit
  • Residual Current Release.


15. On structures taller than 40 m, flashes to the side may occur
  • True
  • False


16. Low smoke halogen used in closed public places where we can’t afford losing people by suffocation.
  • True
  • False


17. Direct lighting schemes make modeling and shaping for objects
  • False
  • True


18. The one who's responsible about Project Shop Drawing is ........................... ?
  • Contractor Technical Office
  • Consultant
  • Owner
  • Site Engineer


19. The one who's responsible about approving suppliers technical offers is ........................... ?
  • Supplier
  • Contactor Technical Office
  • Consultant
  • Owner


20. In an Inductive load, what are the purpose of reactive load?
  • To energize the magnetic field.
  • None of the above
  • To generate electric field in the motor winding
  • Transformed into mechanical power


21. Uses of CT & VT in MV Switchgear are ?
  • None of the above
  • Safely isolating secondary control circuits from the high voltages or currents.
  • Both A & B
  • Operate instruments or metering from high voltage or high current circuits,


22. Basement ventilation required Jet fans, Exhaust fan and Fresh air.
  • False
  • True


23. The RCD provides protection from small current leakage arising due to accidental touch by human being or insulation failure.
  • True
  • False


24. A remote terminal unit (RTU) is a multipurpose device used for remote monitoring and control of various devices and systems for automation.
  • True
  • False


25. The color of the normal socket may be .......
  • None of the above
  • Green
  • Red
  • Orange


26. While defining the lightning protection zones, The zones should necessarily have physical boundaries (e.g. structure walls).
  • True
  • False


27. Which type of the following lamps is used in outdoor lighting?
  • All of the above
  • Metal halide
  • LED
  • Sodium lamps