Alignment A Flashcards

1
Q

4 sources of error in alignment tools

A

heat
glass
small opening
edge

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2
Q

light refraction direction when passing from thinner to thicker medium

A

towards the normal

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3
Q

what does convex mean

A

focus

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4
Q

what does concave mean

A

disperse

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5
Q

telescopic sight can be adjust by the

A

focusing knob

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6
Q

advantage of the pentaprism

A

object is not reversed

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7
Q

more accurate

auto reflection or auto collimation

A

auto collimation

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8
Q

requires light source

auto reflection or auto collimation

A

auto collimation

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9
Q

purpose of optical micrometer

A

precision leveling

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10
Q

accuracy of precision target

A

.001

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11
Q

purpose of target holder

A

centers bearing bores

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12
Q

tool used to establish tool in level position

A

coincidence striding level

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13
Q

tool used for viewing when telescope mounted too close to ground or obstruction

A

right angle eye piece

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14
Q

accuracy of lightweight stand

A

.020

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15
Q

accuracy of heavy duty stand

A

.001

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16
Q

tool used to support instrument near the floor

A

trivets

17
Q

simplest means of obtaining an accurate reading

A

waving the rod

18
Q

purpose of alignment telescope

A

establish reference line of sight

19
Q

5 uses of jig transit

and the main purpose

A
level
flat
plumb
straight 
square
main purpose is to plumb
20
Q

the process of aligning more than 2 targets at the same time

A

bucking in

21
Q

used to rough level a jig transit

A

fish eye

22
Q

purpose of a thedolite

A

measures angles

23
Q

weight of plumb bob

A

30-50 lbs

24
Q

wire size for wire alignment

A

.016 to .020