LECTURE 4

Question 1

Direct measurement of distances with steel tapes

Answer 1

Taping

Question 2

In gunter’s chain, 100 links is equivalent to how many feet?

Answer 2

66 ft

Question 3

what are the taping accessories

Answer 3

1. Range Pole
2. Chaining pins
3. Tension Handle
4. Plumb bob
5. Wooden Stake
6. Leather thong
7. Clinometer

Question 4

marked with alternate 1-ft long red
and white bands that can be used
for rough measurements

Answer 4

range pole

Question 5

used to mark tape lengths

Answer 5

chaining pins

Question 6

are made of number 12 steel wire,
sharply pointed at one end, have a
round loop at the other end, and are
painted with alternate red and white
bands

Answer 6

chaining pins

Question 7

used to mark direction
of exact point

Answer 7

plumb bob

Question 8

Being used as markers especially in
soft soil-based environment

Answer 8

wooden stake

Question 9

measuring elevation angles above horizontal

Answer 9

clinometer

Question 10

what are the taping operations

Answer 10

1. Breaking Tape
2. Slope Taping

Question 11

Measurement of shorter distances which are accumulated to total a full tape length

Answer 11

Breaking tape

Question 12

Taped measurements are made directly along the slopes when the ground is of uniform inclination

Answer 12

Slope taping

Question 13

Rules in tape correction

Answer 13

> Measured
- too long: add
- too short: subtract

> Laid out
- too long: subtract
- too short: add

Question 14

What are the corrections to tape

Answer 14

1. Tape Not of Standard Length
2. Slope
3. Alignment
4. Temperature
5. Tension
6. Sag
7. Wind

Question 15

Often due to imperfections in their
manufacture, stretching or wear

Answer 15

Tape not of standard length

Question 16

Linear error due to inaccuracy in alignment
of a tape

Answer 16

due to alignment

Question 17

Occurs when measurements are taken above or below the standard temperature of the tape

Answer 17

due to temperature

Question 18

Arises whenever the pull applied is different from the standard

Answer 18

due to tension

Question 19

Occurs when tape supports
are only at its ends or at the
2 points measured

Answer 19

due to sag

Question 20

Caused by a force perpendicular to the direction of taping

Answer 20

due to wind