7.7 Electrical Wiring Interconnection System (EWIS)
Questions and Correct Detailed Answers (Verified
Answers) ||Already Graded A+||Newest Version
Quiz: Electrical equipment should never be operated in areas where
explosive vapours are present or suspected, unless the equipment has what
properties?
Ans: explosion proof and designed specifically for use in such areas.
Quiz: If it is necessary to work on energised circuits or on live electrical
equipment what should we make sure to use and do?
Ans: always use adequate protective materials and take extreme care.
Quiz: When preparing to work on de-energised electrical circuits what 3
things must we ensure?
Ans: • The external power switch is off.
• The battery is disconnected.
• Red safety tags are fitted.
Quiz: What causes electric shock and burns?
o
o
© 2025 TestTrackers
WhatsApp or call o Resources & Updates: [Testtrackers - Stuvia US]
o Your Success is Our Mission!
[+254707240657]
o For online exams and tutor expert, please whatsapp
me in the number given.
, Ans: Current does the damage, not the voltage
Quiz: In fuel tanks or flammable vapour areas what mustn't we use?
Ans: Never use electric tools which deliver more than 0.02 millijoules of
energy or heat generating tools.
Quiz: In fuel tanks or flammable vapour areas what should we use?
Ans: Only crimped contacts, terminals, splices and non-heat shrinkable sleeves
are to be used in these areas.
Quiz: What should the wiring installation conform to? (In order of
importance)
Ans: • 1st - Flight safety.
• 2nd - Ease of maintenance, removal and replacement of parts.
• 3rd - Cost effective aircraft production and repair.
Quiz: How far should wire bundles run from lines carrying flammable
liquid such as fuel, hydraulic oil, oxygen ect?
o
o
© 2025 TestTrackers
WhatsApp or call o Resources & Updates: [Testtrackers - Stuvia US]
o Your Success is Our Mission!
[+254707240657]
o For online exams and tutor expert, please whatsapp
me in the number given.
, Ans: 50mm(1.9inch)
Quiz: What's the minimum bend radius for single wires and cables?
Ans: 3 times the outside diameter
Quiz: What's the preferred value for bend radius of a single wire or cable?
Ans: 10 times the outside diameter
Quiz: What's the smallest bend radius for a wire bundle?
Ans: 6 times the outside diameter
Quiz: What's the minimum bend radius for single coax cables and wire
bundles with coax cables attached?
Ans: 10 times the outside diameter of the coax cable
Quiz: What checks must you do each time a wire is added, repaired or
reconnected?
o
o
© 2025 TestTrackers
WhatsApp or call o Resources & Updates: [Testtrackers - Stuvia US]
o Your Success is Our Mission!
[+254707240657]
o For online exams and tutor expert, please whatsapp
me in the number given.
Questions and Correct Detailed Answers (Verified
Answers) ||Already Graded A+||Newest Version
Quiz: Electrical equipment should never be operated in areas where
explosive vapours are present or suspected, unless the equipment has what
properties?
Ans: explosion proof and designed specifically for use in such areas.
Quiz: If it is necessary to work on energised circuits or on live electrical
equipment what should we make sure to use and do?
Ans: always use adequate protective materials and take extreme care.
Quiz: When preparing to work on de-energised electrical circuits what 3
things must we ensure?
Ans: • The external power switch is off.
• The battery is disconnected.
• Red safety tags are fitted.
Quiz: What causes electric shock and burns?
o
o
© 2025 TestTrackers
WhatsApp or call o Resources & Updates: [Testtrackers - Stuvia US]
o Your Success is Our Mission!
[+254707240657]
o For online exams and tutor expert, please whatsapp
me in the number given.
, Ans: Current does the damage, not the voltage
Quiz: In fuel tanks or flammable vapour areas what mustn't we use?
Ans: Never use electric tools which deliver more than 0.02 millijoules of
energy or heat generating tools.
Quiz: In fuel tanks or flammable vapour areas what should we use?
Ans: Only crimped contacts, terminals, splices and non-heat shrinkable sleeves
are to be used in these areas.
Quiz: What should the wiring installation conform to? (In order of
importance)
Ans: • 1st - Flight safety.
• 2nd - Ease of maintenance, removal and replacement of parts.
• 3rd - Cost effective aircraft production and repair.
Quiz: How far should wire bundles run from lines carrying flammable
liquid such as fuel, hydraulic oil, oxygen ect?
o
o
© 2025 TestTrackers
WhatsApp or call o Resources & Updates: [Testtrackers - Stuvia US]
o Your Success is Our Mission!
[+254707240657]
o For online exams and tutor expert, please whatsapp
me in the number given.
, Ans: 50mm(1.9inch)
Quiz: What's the minimum bend radius for single wires and cables?
Ans: 3 times the outside diameter
Quiz: What's the preferred value for bend radius of a single wire or cable?
Ans: 10 times the outside diameter
Quiz: What's the smallest bend radius for a wire bundle?
Ans: 6 times the outside diameter
Quiz: What's the minimum bend radius for single coax cables and wire
bundles with coax cables attached?
Ans: 10 times the outside diameter of the coax cable
Quiz: What checks must you do each time a wire is added, repaired or
reconnected?
o
o
© 2025 TestTrackers
WhatsApp or call o Resources & Updates: [Testtrackers - Stuvia US]
o Your Success is Our Mission!
[+254707240657]
o For online exams and tutor expert, please whatsapp
me in the number given.
