MCQs on Micro Grid Part-1

Micro Grid

1. The most commonly used energy storage system is_________.

a. Superconducting Magnetic Energy Storage

b. Compressed Air Energy Storage

c. Flywheel Energy Storage

d. Pumped Hydro Energy Storage

2. The most commonly used IRIG format for time and frequency solutions is________.

a. IRIG-D

b. IRIG-B

c. IRIG-E

d. IRIG-F

3. 

a: Star

b: Mesh

c: Tree

d: Cluster

4. Which among following is not a characteristic of a Numerical relay ? 

a. Programmable

b. Very fast response

c. High CT Burden

d. Present generation relay

5. Choose the Wired Technology among following _______.

a. ZigBee

b. PLCC

c. Wi-Max

d. Bluetooth

6. The time synchronized numbers that represent both magnitude and phase of sinusoidal waves is known as_________.

a. Time Phasors

b. Time Vectors

c. Synchro Phasors

d. Synchro Vectors

7. Wi-max is based on the ------- standard.

a. IEEE 802.16

b. IEEE 805.15

c. IEEE 1588

d. IEC 61850

8. Pload-Pder = P grid represents ------- mode of MG.

a. Grid Connected

b. Islanded

c. Mismatched

d. Normal

9. Grid-following inverters are generally associated with ---------.

a. Dispatchable generators

b. Non-dispatchable generators

c. Energy storage devices

d. Utility grid

10. For a Synchronous based DG, Fault current is about ----- times the rated current.

a. 5

b. 2

c. 1

d. 4

11. Choose among following which is not the characteristics of the existing Grid?

a. one way communication

b. Manual monitoring

c. Failures and Blackouts

d. Self Healing

12. Which of the following is not as method of Islanding detection?

a. Passive

b. Active

c. Biased

d. Hybrid

13. Choose among following the standard related to the Wide Area Situation Awareness_____.

a. IEEE Standard 1547.1

b. IEEE Standard C37.118

c. IEEE Standard 1686

d. IEEE Standard 1588

14. IEEE 1686 standard is related to ----------.

a. Cyber security

b. Substation Protection

c. Time Synchronization

d. WAMS

15. Which of the following is not an advantage of Microgrid?

a. Improved energy efficiency

b. Improved supply relaibility

c. Reduced environmental imapct

d. Easy resynchonization

16. Browsing a website is an example of -------- communication.

a. Unicast

b. Multicast

c. Broadcast

d. Bicast

17. Voltages or currents having frequency components that are non-integer multiples of the fundamental frequency are known as_______.

a. Harmonics

b. DC offset

c. Inter harmonics

d. Notch

18. In a typical AC microgrid ---- helps to regulate voltage and frequency during islanded mode?

a. Diesel Generator

b. Grid

c. PV connected Inverter

d. Wind Turbine

19. 

a. Blinding of protection

b. False tripping

c. Bidirectional fault current

d. Dynamics in level of fault current

20. 

a. Dynamic Voltage Restorer

b. Auto Transformer

c. Isolation Transformer

d. Transient voltage suppressor