513 - ATPL Question Bank in English - Which statements describe conventional serviceable nickel-cadmium aircraft batteries under their specified operating and storage conditions? 1 - They have no significant thermal-runaway risk. 2 - High internal resistance is the reason for high starting-current capability. 3 - They offer good high-rate charge and discharge capability. 4 - They can operate over their specified temperature range, although available capacity depends on temperature. 5 - They can be stored under the manufacturer-prescribed storage conditions. 6 - Their metallic aircraft battery case provides mechanical protection. 7 - Electrolyte density does not change appreciably with normal state of charge and therefore cannot be used to determine charge state. Select the option containing all correct statements.

Question 513 - Aircraft General Knowledge - Airframe, Systems, Powerplant - ATPL - Airline Transport Pilot Licence