Transit Survey

Bearing angles - transit surveying ?

The true bearing of line AB is N30.15E, and the true bearing of line AC is S10.55E. The angle BAC measured clockwise is:

A. 19.20
B. 199.20
C.41.10
D.138.50

i thought this was the calculation:

180 - 30.15 - 10.55 = 139.3 ?! but thats not correct on the multiple choice... what am i doing wrong?

Perhaps what you put as decimal places are actually minutes. (1 degree = 60 minutes)

180º00' - 30º15' - 10º55'

To make it easier to subtract we can rewrite 180º as 178º120'

So
180º00' - 30º15' - 10º55'
= 178º120' - 30º15' - 10º55'

So, now you work out the degrees
178º - 30º - 10º
= 138º

Then the minutes
120' - 15' - 55'
= 50'

And then we arrive at 138º50', in which case the answer would be D.

Find Transit Survey On eBay Below:

CST BERGER Builders Aluminum Construction Survey Tripod Transit
CST BERGER Builders Aluminum Construction Survey Tripod Transit
$49.99
Aluminum Tripod Stand Theodolite Survey Constructor Level Transit Surveyor
Aluminum Tripod Stand Theodolite Survey Constructor Level Transit Surveyor
$29.99
Lietz Aluminum Tripod Stand Level Transit Surveyor Survey
Lietz Aluminum Tripod Stand Level Transit Surveyor Survey
$69.99
Spectra Precision Laser Aluminum Tripod Stand Level Transit Surveyor Survey
Spectra Precision Laser Aluminum Tripod Stand Level Transit Surveyor Survey
$79.99
SOKKIA TRIPOD WOOD FIBERGLASS SURVEY GPS LASER MOUNT FIELD TRANSIT USED
SOKKIA TRIPOD WOOD FIBERGLASS SURVEY GPS LASER MOUNT FIELD TRANSIT USED
$90.25
Hixon Mfg Surveyors Transit Tripod Extendable Surveying
Hixon Mfg Surveyors Transit Tripod Extendable Surveying
$56.00
Northwest Aluminum Quick Clamp Survey Contractor Tripod for Transit Laser NAT83
Northwest Aluminum Quick Clamp Survey Contractor Tripod for Transit Laser NAT83
$45.00
Used Yellow Red Surveyors Surveying Transit Tripod Three Legged Stand Decorative
Used Yellow Red Surveyors Surveying Transit Tripod Three Legged Stand Decorative
$49.49
Vtg CST WDW 20 SURVEY TRANSIT TRIPOD 72 Heavy Duty Wood Aluminum Screw Clamp EUC
Vtg CST WDW 20 SURVEY TRANSIT TRIPOD 72 Heavy Duty Wood Aluminum Screw Clamp EUC
$109.50
Survey Grade Rod 16ft Aluminum Telescoping Construction Equipment Transit Tripod
Survey Grade Rod 16ft Aluminum Telescoping Construction Equipment Transit Tripod
$72.78
Transit Tripods and Grade Poles for Surveying
Transit Tripods and Grade Poles for Surveying
$240.00
FIBERGLASS TRIPODFOR LASER LEVELTRANSITSURVEYINGTOPCONSPECTRASOKKIAHILTI
FIBERGLASS TRIPODFOR LASER LEVELTRANSITSURVEYINGTOPCONSPECTRASOKKIAHILTI
$89.00
Sokkisha Sokkia Lietz Topcon wooden tripod transit survey surveyor from wood
Sokkisha Sokkia Lietz Topcon wooden tripod transit survey surveyor from wood
$59.99
CST Berger Aluminum Survey Tripod Transits Auto Levelers
CST Berger Aluminum Survey Tripod Transits Auto Levelers
$59.95


Recently Purchased Transit Survey:


transit tripods and grade poles for surveying, northwest aluminum quick clamp survey contractor tripod for transit laser nat83, sokkia tripod wood fiberglass survey gps laser mount field transit used, cst berger aluminum survey tripod transits auto levelers , sokkisha sokkia lietz topcon wooden tripod transit survey surveyor from wood, vtg cst wdw20 survey transit tripod 72 heavy duty wood aluminum screw clamp euc, used yellow red surveyors surveying transit tripod three legged stand decorative, hixon mfg surveyors transit tripod extendable surveying, survey grade rod 16ft aluminum telescoping construction equipment transit tripod, spectra precision laser aluminum tripod stand level transit surveyor survey, lietz aluminum tripod stand level transit surveyor survey, aluminum tripod stand theodolite survey constructor level transit surveyor, cst berger builders aluminum construction survey tripod transit , fiberglass tripodfor laser leveltransitsurveyingtopconspectrasokkiahilti



Comments are closed.