UNIT II

THEODOLITE SURVEYING
INTRODUCTION – TYPES OF THEODOLITES : TRANSIT AND NON-TRANSIT
THEODOLITE, VERNIER AND MICROMETER THEODOLITES – ELECTRONIC
THEODOLITE (PRINCIPLES AND DESCRIPTION ONLY) – COMPONENT
PARTS OF A TRANSIT THEODOLITE – FUNCTIONS – TECHNICAL TERMS
USED IN THEODOLITE SURVEYING – TEMPORARY ADJUSTMENTS –
FUNDAMENTAL LINES AND RELATIONSHIP BETWEEN THEM –
MEASUREMENT OF HORIZONTAL ANGLE BY METHOD OF REPETITION
AND REITERATION – MEASUREMENT OF VERTICAL ANGLE AND
DEFLECTION ANGLE – READING BEARING OF A LINE – THEODOLITE
TRAVERSING – METHODS – FIELD CHECKS IN CLOSED TRAVERSE –
LATITUDE AND DEPARTURE – CONSECUTIVE COORDINATES –
INDEPENDENT COORDINATES – PROBLEMS ON COMPUTATION OF
AREA OF CLOSED TRAVERSE – BALANCING THE TRAVERSE
TACHEOMETRIC SURVEYING
INTRODUCTION – INSTRUMENTS USED IN TACHEOMETRY – SYSTEMS
OF TACHEOMETRY : STADIA AND TANGENTIAL TACHEOMETRY –
PRINCIPLES – FIXED HAIR METHOD OF TACHEOMETRY – DISTANCE
AND ELEVATION FORMULAE – ANALLACTIC LENS (NO PROOF) :
ADVANTAGES AND USES – SIMPLE PROBLEMS – DISTOMATS
(DESCRIPTION ONLY) – DIRECT READING TACHEOMETERS –
DETERMINATION OF CONSTANTS OF A TACHEOMETER : PROBLEMS –
TACHEOMETRIC TRAVERSE – ERRORS IN TACHEOMETRIC SURVEYING.

Discussion

Discussion allows you to ask questions directly to the instructor.