Leveling And Bore Alignment

Question 1

What is flat?

Answer 1

May be level

May be flat on an incline

Same plane

Question 2

What is plumb?

Answer 2

To align perpendicular to the horizon, vertical.

Question 3

What is straight?

Answer 3

To be in direct line of. (Straightness)

Question 4

What is square?

Answer 4

Refers to something that is aligned 90 degrees to a reference.

Question 5

What is level?

Answer 5

To put in the same plane as the horizon.

Question 6

Define refraction.

Answer 6

Bend the line of sight as it passes through glass. Light bends as it passes through different densities.

Question 7

What prism will turn a line of sight precisely 90 degrees?

Answer 7

A pentaprism, a five sided prism.

Question 8

What is the function of a tilting level?

Answer 8

To establish a level plane and are used strictly for levelling procedures.

Question 9

What is the primary purpose if a jig transit?

Answer 9

To align and establish precise vertical planes and plumb lines. (Vertical readings)

Question 10

What ins turner is used to measure angles with extremely high accuracy?

Answer 10

A theodolite, can measure angles in horizontal and vertical.

Question 11

What is bucking in?

Answer 11

The process of aligning an optical tool onto two targets at the time. A precision lateral adjuster is required.

Question 12

What is a plumb aligned bracket used for?

Answer 12

To set up an optical telescope quickly and easily to establish a vertical plumb line.

Question 13

What is the function of the optical square?

Answer 13

To establish a plane perpendicular to the reference line of sight.

Question 14

What is the proper term for the reference point?

Answer 14

Benchmark.

Question 15

Why is roughy levelling important with a tilting level?

Answer 15

To ensure the coincidence level is within adjustment.

The rough alignment is getting the fisheye level.

Question 16

When using the titling level what must you do before every shot?

Answer 16

Adjust the coincidence level.

Question 17

Optical micrometers work by?

Answer 17

Refracting the light downward to the nearest known measurement.

Question 18

Where should the tilting level be placed between the back sight and foresight?

Answer 18

Equal distance between them.

Question 19

Which alignment procedure requires a light source and a second telescope?

Answer 19

Collimation

Question 20

Which alignment procedure uses a target mounted in the end if a telescope?

Answer 20

Auto refraction.

Question 21

Optical micrometers are capable of measurement to an accuracy of?

Answer 21

0.001 with out a vernier scale, 0.0001 with a vernier scale.

Question 22

What is used to check the accuracy of a jig transit?

Answer 22

Wire weight held vertically.

Question 23

Dynamic interruption in a laser system occurs when?

Answer 23

The beam falls outside the range if the detector while rotating.

Question 24

Which is more accurate, auto collimation or auto reflection?

Answer 24

Auto collimation

Question 25

What accessory is used to accurately align the centres in bearing bores?

Answer 25

Target holders

Question 26

What is used in an alignment telescope or collimator to establish the tool is in a level position?

Answer 26

Coincidence striding level.

Question 27

What is the purpose of the jig transit?

Answer 27

To align and establish precise vertical planes and plumb lines.

Question 28

What is the purpose of tilting levels?

Answer 28

To establish a level plane and are use strictly for levelling procedures.

Question 29

If done correctly wire alignment can be accurate up to?

Answer 29

0.0001 inch

Question 30

Construction grade lasers are accurate up to?

Answer 30

1/4 in per 100 ft