> ## Documentation Index > Fetch the complete documentation index at: https://learning.kent.co.in/llms.txt > Use this file to discover all available pages before exploring further. # Quiz — Electrical Safety: 10 Questions with Answers > 10 multiple-choice questions on safety: 5-minute discharge wait, 0.5 A DC switch rule, full-job PPE, heatsink temperature, and authorized-only actions. Ten questions from the [Safety](/safety/safety-first) group. Work through all ten before scrolling to the answer key. Suggested pass mark: **8 / 10**. Each miss points to a specific source page — re-read that page, not the whole group. ## Questions **1.** After powering an inverter fully OFF, how long must you wait before opening any cover or touching internal conductors? * A. 30 seconds — the display going dark is the signal * B. 5 minutes — timed, regardless of display state * C. 15 minutes — only for battery work * D. No wait is needed if the PV DC switch is open *** **2.** The Kent G3 PV DC switch may only be operated when the string current is below: * A. 5 A * B. 2 A * C. 0.5 A * D. Any value — the switch is rated for full load *** **3.** Who may open an inverter enclosure to work on internal parts? * A. Any licensed electrician on site * B. The installing technician, provided the 5-minute discharge wait has passed * C. Nobody in the field — there are no user-serviceable parts inside; internal work is Kent service only * D. The customer, for dust cleaning using a dry cloth *** **4.** During normal operation, the Kent G3 heatsink surface can reach approximately: * A. 45 °C * B. 60 °C * C. 75 °C * D. 95 °C *** **5.** The correct power-OFF sequence on both Kent platforms is: * A. The exact reverse of power-on — battery side off first, grid AC last * B. Grid AC off first, then battery * C. PV DC switch first, always * D. Any order, as long as the display is dark before disconnecting battery *** **6.** PPE must be worn: * A. Only during battery terminal work * B. Only when the inverter is energised and running * C. Throughout the entire installation process, from arrival to sign-off * D. Only during AC termination work at the DB *** **7.** For battery work specifically, the manual's footwear and hand protection rule is: * A. Cotton gloves are sufficient for low-voltage packs * B. Rubber shoes and insulating gloves * C. Standard site safety boots are adequate * D. No specific rule — follow general site PPE *** **8.** Grid protection points — voltage and frequency trip settings — may be changed: * A. By the installer whenever the local DISCOM supply seems unstable * B. Freely, if export readings look wrong * C. Once per season to match seasonal voltage profiles * D. Only with utility consent, by authorized personnel, using the Kent-issued parameter sheet *** **9.** After completing the labelled 5-minute discharge wait, and before touching any conductor, you must also: * A. Tap the terminals with an insulated tool to check for spark * B. Meter-verify that no dangerous voltage remains on the relevant conductors * C. Wait a further 5 minutes as an additional buffer * D. Nothing further — the timed wait alone is sufficient per the manual *** **10.** The Kent rule for the earth-pit resistance reading at every installation site is: * A. Measure the earth resistance and photograph the reading; escalate poor soil to Kent before energising * B. Assume the builder's earth is adequate for a residential installation * C. Only measure on commercial or industrial sites * D. Quote the manual's reference figure to the customer as the confirmed site resistance *** ## Answer key | Q | Answer | Why | | -- | ------ | ---------------------------------------------------------------------------------------------------------------------------------------------------------------- | | 1 | **B** | The manual specifies a 5-minute wait after full power-off before opening any cover. The display state is not the trigger. | | 2 | **C** | The 0.5 A arc-prevention rule applies to the Kent G3 DC switch. Operating under load risks a DC arc. | | 3 | **C** | Neither platform has user-serviceable parts inside. Opening the enclosure in the field is not permitted — internal work is Kent service. | | 4 | **C** | The Kent G3 heatsink can reach 75 °C during operation. Do not touch the heatsink during or shortly after operation. | | 5 | **A** | Power-off is the exact reverse of power-on: battery (and any GEN source) off first, then grid AC. | | 6 | **C** | PPE applies throughout the entire installation process, not only at specific steps. | | 7 | **B** | The manual's battery safety instructions specify rubber shoes and insulating gloves for battery work. | | 8 | **D** | Grid protection points are utility-consent settings. They are never adjusted freely by the installer or by improvisation. | | 9 | **B** | After the discharge wait, verify dead with a meter before touching conductors. The wait alone is not a substitute for measurement. | | 10 | **A** | Measure and photograph the earth-pit reading at every site. Escalate poor soil results to Kent before energising — never assume the builder's earth is adequate. | ## Related pages * [Safety First](/safety/safety-first) * [Isolation & Shutdown](/safety/isolation-and-shutdown) * [PPE & Tools](/safety/ppe-and-tools) * [Authorized-Only Actions](/safety/authorized-only-actions)