Reduce the following level sheet showing all checks compute

Question

Question 1

Reduce the following level sheet showing all checks. Compute the adjusted reduced levels for all points.

BS	INT	FS	Rise	Fall	RL	Remarks
2.567						PSM 162 (RL = 37.855)
1.984		3.984				TBM A
0.355		0.768				TBM B
3.031		3.804				TBM C
0.783		2.547				TBM D
	2.541					Natural Surface
	2.895					Natural Surface
3.651		0.784				TBM E
3.981		2.189				TBM F
		2.283				PSM 162 (RL = 37.855)

Question 2

Calculate the index error for an automatic level based on the tabulated measurements below

Two Peg Test
At	To	Distance	Reading
Mid.Pt	501	30	2.136
Mid.Pt	502	30	1.826
502	502	1	1.625
502	501	60	1.959

Question 3

Line	Bearing			Distance	?E	?N	E	N
	Deg	Min	Sec	metres
A							1000.000	2000.000
A-B	57	56	40	111.505
B-C	135	20	30	84.256
C-D	179	55	50	47.269
D-E	255	15	10	78.988
E-A	311	21	20	103.11

From the closed traverse information above, compute coordinates of Stations B, C, D and E.

Question 4

Convert

(a) 2.5764o to Degrees Minutes Seconds

(b) 204o 39'43" to Degrees Decimals

Question 5

What is the height difference between A and B given the following measurements:

- the height of the instrument (hi) at A is 1.272m and the height of the target at B (ht) is 1.333

- zenith angle (z) and slope distance (s) is 82o 52'36" and 127.025m respectively.

Question 6

The reduced level of 901 is to be determined by trig heighting from instrument station 1. Given the height difference from 1 to 728 is -0.421m and 1 to 901 is +1.527m. If the RL of 728 is 26.505m calculate the RL of 901.

Question 7

Given the bearing and direction of one line calculate the bearings of the remaining lines.

Question 8

At Station	To	Face Left	Face Right
PM 01	PM02	244o55' 30"	64o55'28"
	PM 03	45o00'10"	225o00'16"

Calculate the mean of the measured angle from the following observed bearings

Question 9

Distances were measured on all sides of the triangle ABC as shown below. Compute the values of internal angles in degrees minutes and seconds.