revision questions

#168. Hydraulic fluid

• ANeeds no special treatment
• B Is harmful to eyes and skin
• C Is a fire hazard
• D Is harmful to eyes and skin, and is also a fire hazard

#173. The battery in a search and rescue beacon (SARB) should last for

• A 72 hours
• B 48 hours
• C 24 hours
• D 12 hours

#183. The ‘torsion box’ of a modern aircraft wing structure consists of:

• ASpars, skin, frames and stringers
• B Spars, skin, frames and ribs
• C Spars, skin, longerons and ribs
• D Spars, skin, stringers and ribs