CSR Quiz #2 (17/07/2020)

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| By Syabbas

Syabbas

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Quizzes Created: 2 | Total Attempts: 116

Questions: 10 | Attempts: 40 | Updated: Mar 16, 2023

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Quiz is Mandatory for CSR Team: Quiz is Scored. Quiz has 10 questions. Quiz is Time Bound(10 minutes). Quiz can only be attempted once. Quiz can only be taken at a specific time.

Questions and Answers

1.

At what voltages does the BMS Master board attain the shutdown state?
- A.
  
  2.4 V
- B.
  
  2.5 V
- C.
  
  2.6 V
- D.
  
  2.7 V
- E.
  
  None
Correct Answer
B. 2.5 V

Explanation
The BMS Master board attains the shutdown state at a voltage of 2.5 V.

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2.

If there is only one green light turned on, It indicates that the BMS master board is:
- A.
  
  Malfunctioned
- B.
  
  Fault state
- C.
  
  Connectors are loose
- D.
  
  Shutdown state
- E.
  
  All of the above
Correct Answer
D. Shutdown state

Explanation
The presence of only one green light turned on suggests that the BMS master board is in a shutdown state. This means that the board is intentionally turned off or not functioning properly, resulting in the shutdown of the system it controls. This explanation is supported by the fact that all the other options (malfunctioned, fault state, connectors are loose) do not specifically indicate the shutdown of the board.

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3.

If a client complains that his PV production is very low since the past few days and his export is not enabled (net meter is not installed) will you be able to find this system in the Daily PV analysis report?
- A.
  
  Yes
- B.
  
  No
- C.
  
  Maybe
Correct Answer
B. No

Explanation
The client's PV production is low because his export is not enabled and a net meter is not installed. The Daily PV analysis report would typically only include systems with export enabled and a net meter installed. Since the client's system does not meet these criteria, it would not be included in the report. Therefore, the answer is No.

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4.

Over-temperature doesn't occur due to
- A.
  
  MPPT imbalanced
- B.
  
  Clogs in filters
- C.
  
  DB on top of inverter
- D.
  
  Overload on System
Correct Answer
D. Overload on System

Explanation
Over-temperature does not occur due to overload on the system. Overload on the system refers to the situation where the demand for power exceeds the capacity of the system. This can cause overheating of the components, leading to potential damage or failure. However, over-temperature is not directly caused by overload on the system. Over-temperature typically occurs due to factors such as excessive ambient temperature, poor ventilation, or malfunctioning cooling systems.

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5.

We can check NGC temperature from?
- A.
  
  Technical grahs>NGC temperature stats
- B.
  
  HTML view> NGC stats
- C.
  
  Technical Graphs>NGC temperature stats
- D.
  
  None
Correct Answer
B. HTML view> NGC stats

Explanation
The correct answer is "HTML view> NGC stats". This option suggests that we can check the NGC temperature from the HTML view of the NGC stats. The other options mentioned, such as "Technical graphs> NGC temperature stats" and "Technical Graphs> NGC temperature stats", do not specify the source of information or the method to access the NGC temperature stats. Therefore, the HTML view is the most appropriate option for checking the NGC temperature.

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6.

Last step in checking relay sense issue is:
- A.
  
  HTML>battery cabinet>state
- B.
  
  Technical graphs>battery cabinet>Relay
- C.
  
  HTML>Relay>state
- D.
  
  HTML>Relay state>sense
Correct Answer
A. HTML>battery cabinet>state

Explanation
The last step in checking relay sense issue is to navigate to HTML > battery cabinet > state. This step is important because it allows the user to check the current state of the relay in the battery cabinet. By accessing this information, any issues or malfunctions with the relay's sense can be identified and addressed accordingly.

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7.

Battery Over Discharge Alert generates when?
- A.
  
  Load is greater than battery capacity
- B.
  
  Load is less than battery capacity
- C.
  
  Battery SOC is Zero
- D.
  
  All of the above
Correct Answer
A. Load is greater than battery capacity

Explanation
Battery Over Discharge Alert generates when the load connected to the battery is greater than the battery's capacity. This means that the load is drawing more power from the battery than it can provide, leading to a potential over-discharge situation. In such cases, an alert is generated to warn the user about the excessive load and the need to reduce it to prevent damage to the battery.

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8.

PV Current can be checked from:
- A.
  
  Statistics>Technical Graphs>Grid Detailed
- B.
  
  Statistics>Technical Graphs>Load Detailed
- C.
  
  Statistics>Graphs>PV
- D.
  
  None of the above
Correct Answer
D. None of the above

Explanation
The given options do not provide a way to check PV current. PV current can be checked from the inverter or solar panel datasheet, by using a multimeter to measure the current directly, or by using a monitoring system specifically designed for PV systems.

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9.

Why there are no negative values on Solar Dial?
- A.
  
  SmartFlow is disabled
- B.
  
  PV is not exporting
- C.
  
  Export is not enabled
- D.
  
  None of the above
Correct Answer
D. None of the above

Explanation
The reason there are no negative values on the Solar Dial is because it represents the amount of solar energy being generated or used, and solar energy cannot be negative. The Solar Dial only displays positive values to indicate the amount of energy being produced by the solar panels. Therefore, none of the given options are the correct explanation for the absence of negative values on the Solar Dial.

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10.

Critical System in PV Report could have low production due to:
- A.
  
  Export Meter is not installed
- B.
  
  Grid Outage during Day time
- C.
  
  Low load and Battery fully charged
- D.
  
  No load on system
Correct Answer
B. Grid Outage during Day time

Explanation
The correct answer is "Grid Outage during Day time". This means that the critical system in the PV report could have low production because there was a power outage in the grid during the daytime. This would result in the system not being able to generate electricity and therefore leading to low production.

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CSR Quiz #2 (17/07/2020)

At what voltages does the BMS Master board attain the shutdown state?

If there is only one green light turned on, It indicates that the BMS master board is:

If a client complains that his PV production is very low since the past few days and his export is not enabled (net meter is not installed) will you be able to find this system in the Daily PV analysis report?

Over-temperature doesn't occur due to

We can check NGC temperature from?

Last step in checking relay sense issue is:

Battery Over Discharge Alert generates when?

PV Current can be checked from:

Why there are no negative values on Solar Dial?

Critical System in PV Report could have low production due to: