Class 4 (4th Engineer) SSEP 📅 Nov 2023

Exam Question

State how safety is achieved with regard to gas emission in battery room, where a large number of lead acid cells, are stored, with reference to following.

(a) Provision for lighting. (5)

(b) Ventilation, if fan is fitted. (5)

(d) Use of tools and replacement of defective batteries. (5)

Reference Answer

### Safety in Battery Rooms
The safe operation and maintenance of large lead-acid battery installations in a ship's battery room are governed by strict regulations to mitigate the risks of explosion, chemical burns, electrical shock, and physical injury. The primary hazards are the emission of hydrogen gas during charging, which can form an explosive mixture with air, and the corrosive nature of the sulfuric acid electrolyte.
**(a) Provision for Lighting**
Safety with regard to lighting is achieved by eliminating potential ignition sources in an environment where flammable hydrogen gas may be present.

Full answer on MeoMock — surveyor-grade reference answers for 7,000+ written exam questions.

View plans Browse library

← Browse more questions

Prepare on Android — MeoMock on Google Play