The temporary adjustments of a theodolite that must be done at every new station are:
Choose the correct answer
Adjustment of vertical hair only
Setting up (centering over station), leveling, and elimination of parallax (focussing eyepiece and objective)
Spire test adjustment
Horizontal plate verification
Correct Answer
B. Setting up (centering over station), leveling, and elimination of parallax (focussing eyepiece and objective)
AI Detailed Explanation & IS Code Reference
Unlock the reasoning, formula path and code-linked notes inside your student dashboard.
Temporary adjustments (at every setup): (1) Centering: plumb bob/optical plummet over station mark; (2) Leveling: using plate levels (altitude bubble for precise); (3) Focussing: eyepiece (remove parallax of cross-hairs), objective (sharp image of object). Permanent adjustments (rare): plate level, cross-hair ring, line of collimation.
ScoreCardAI links this solution with subject, topic and difficulty signals so your scorecard can identify weak areas after a full mock test.
Practice more Civil Engineering questions
This MCQ belongs to AE Level Premium Test Series. Full tests include timed attempts, rank comparison and subject-wise analysis.