Lighthouse Engineering
Instructions: Shine a light on your knowledge of lighthouse construction and maritime beacons!
- 1.
The Lighthouse of Alexandria (Pharos), one of the Seven Wonders of the Ancient World, was located in which country?
AEgyptBLibyaCTurkeyDGreece - 2.
What revolutionary lens system, invented in 1822, dramatically improved the brightness and range of lighthouse beams?
AFresnel lensBPrism arrayCConcave mirrorDConvex lens - 3.
The Eddystone Lighthouse, located off the coast of Plymouth, England, was notable for being built on what?
AA sandy beachBA cliff faceCAn artificial islandDA dangerous reef in the open sea - 4.
What is the purpose of a lighthouse's unique flash pattern?
ATo save energyBTo attract fishCTo allow sailors to identify which lighthouse they are seeingDTo signal weather conditions - 5.
Which Scottish engineering family built over 100 lighthouses around Scotland's coast over several generations?
AThe RenniesBThe TelfordsCThe SmeatonsDThe Stevensons - 6.
What was the primary fuel source for most lighthouses before the introduction of electricity?
ACoalBWoodCWhale oil and keroseneDNatural gas - 7.
The Cape Hatteras Lighthouse in North Carolina is famous for what remarkable engineering feat completed in 1999?
ABeing converted to solar powerBBeing rebuilt from scratchCHaving its light upgraded to laserDBeing moved 2,900 feet to escape erosion - 8.
What engineering material did John Smeaton use for the third Eddystone Lighthouse in 1759 that was revolutionary at the time?
ABrickBCast ironCGranite blocks onlyDHydraulic lime cement (early concrete) - 9.
A 'lightship' (or 'light vessel') served what purpose?
ADelivering fuel to lighthousesBTransporting lighthouse keepersCMaintaining lighthouse equipmentDActing as a floating lighthouse in locations where a fixed lighthouse couldn't be built - 10.
The Tower of Hercules in Spain, still operational, is the oldest known what?
AStone tower in EuropeBRoman lighthouse still in useCSpanish monumentDMaritime signal - 11.
What is a 'fog signal' at a lighthouse?
AA flare launcherBA radio transmissionCA colored flag systemDAn audible warning device used when visibility is poor - 12.
The Bell Rock Lighthouse, built on a submerged reef off Scotland in 1811, was designed by which engineer?
AJohn SmeatonBJames WattCThomas TelfordDRobert Stevenson - 13.
What largely replaced traditional lighthouses for maritime navigation in the late 20th century?
ASonar beaconsBSatellite phonesCGPS and electronic navigationDRadar systems - 14.
The iconic red and white striped West Quoddy Head Lighthouse marks the easternmost point of which country?
ACanadaBIrelandCUnited States (mainland)DUnited Kingdom - 15.
What is a 'range light' or 'leading light' system in maritime navigation?
ATwo lights aligned to show a safe channel when in lineBA single very bright lightCA light visible only from one directionDA rotating colored light