6 – Levels & Transits

A use of a level is to establish elevations and grades.

A use of a level is to establish differential elevations

A use of a level is to measure horizontal angles

A use of a level is to transfer elevations from one point to another

Identify type of level:

Identify type of level:

Identify type of level:

Identify type of level:

Identify part of level:

#9

Identify part of level:

#10

Identify part of level:

#11

Identify part of level:

#12

Identify part of level:

#13

Identify part of level:

#14

Identify part of level:

#15

Identify part of level:

#16

Identify part of level:

#17

Identify part of level:

#18

Identify part of level:

#19

Identify part of level:

#20

A use of a transit is to measure horizontal angles

A use of a transit is to measure vertical angles

A use of a transit is to measure elevations

A use of a transit is to measure horizontal distances

A use of a transit is to lay out boundaries and building lines

A use of a transit is to establish elevations and grades

A use of a transit is to record legal land descriptions

Identify type of transit:

Identify type of transit:

Identify type of transit:

Label major component of a transit:

Label major component of a transit:

Label major component of a transit:

Identify part of the transit:

#34

Identify part of the transit:

#35

Identify part of the transit:

#36

Identify part of the transit:

#37

Identify part of the transit:

#38

Identify part of the transit:

#39

Identify part of the transit:

#40

Identify part of the transit:

#41

Identify part of the transit:

#42

Identify part of the transit:

#43

Identify part of the transit:

#44

Identify part of the transit:

#45

Identify part of the transit:

#46

Identify part of the transit:

#47

Identify part of the transit:

#48

Identify part of the transit:

#49

Identify part of the transit:

#50

Identify part of the transit:

#51

Identify part of the transit:

#52

Identify different type of vernier:

Identify different type of vernier:

Identify different type of vernier:

Interpret readings on different styles of verniers.

Clockwise

Interpret readings on different styles of verniers.

Counterclockwise

Interpret readings on different styles of verniers.

Clockwise

Interpret readings on different styles of verniers.

Counterclockwise

Not using a magnifying glass is a typical mistake made in reading verniers.

Failing to determine the least count correctly is a typical mistake made in reading verniers.

Failing to read directly on the line (parallax error) is a typical mistake made in reading verniers.

Label vertical and horizontal cross hairs and line of sight on a leveling instrument.

#65

Label vertical and horizontal cross hairs and line of sight on a leveling instrument.

#66

Label vertical and horizontal cross hairs and line of sight on a leveling instrument.

#67

Keep instrument in carrying case when not in use for proper care of leveling instruments.

Reading the wrong direction from zero is a typical mistake made in reading verniers.

Adding 10, 15, 20, or 30 minutes when the index is beyond those marks is a typical mistake made in reading verniers.

Remove instrument from carrying case by lifting by the telescope barrel for proper care of leveling instruments.

Always remove the lens before storing for proper care of leveling instruments.

Only use sunshade in bright, sunny conditions for proper care of leveling instruments.

Carry tripod over your shoulder with instrument in front of you for proper care of leveling instruments.

Loosen leveling screws before returning instrument to carrying case for proper care of leveling instruments.

Place lens and tripod caps in carrying case after removing them from instrument for proper care of leveling instruments.

Identify part of a leveling rod:

#75

Identify part of a leveling rod:

#76

Identify part of a leveling rod:

#77

Identify part of a leveling rod:

#78

Holds target in place

Holds rod open when extended

Helps make measurements within a certain range on leveling rod; holds vernier scale

Most commonly used direct-reading rods are graduated in eighths of an inch.

Most commonly used direct-reading rods are graduated in eighths of an inch

Most commonly used direct-reading rods are graduated in quarter inch increments

Most commonly used direct-reading rods are graduated in hundredths of a foot

Enables reading to the nearest thousandth of a foot or nearest sixty-fourth of a foot

Identify markings on a direct-reading rod

#87

Identify markings on a direct-reading rod

#88

Identify markings on a direct-reading rod

#89

Identify markings on a direct-reading rod

#90

Identify hand signals used by the instrument person to guide the rod person.

Identify hand signals used by the instrument person to guide the rod person.

Identify hand signals used by the instrument person to guide the rod person.

Identify hand signals used by the instrument person to guide the rod person.

Identify hand signals used by the instrument person to guide the rod person.

Identify hand signals used by the instrument person to guide the rod person.

Identify hand signals used by the instrument person to guide the rod person.

Identify hand signals used by the instrument person to guide the rod person.

Identify hand signals used by the instrument person to guide the rod person.

Identify hand signals used by the instrument person to guide the rod person.