Question $1$Question $1$

$(10$ Marks$)($Complete on Field Note Paper$)$

Shown in Figure $1$ on the following page are nine readings taken, in order, during a level

loop. The loop starts at BM$1$ and closes on the same point. The readings are BS$,$ FS$,$ BS$,$

FS$,$ etc., except the sixth reading, which is an IS shot to point CU$1($the top of a culvert$).$

The first and third turning points are not significant, but the second $($middle$)$ turning point

is a point which is to be established as BM$2.$

BM$1$ Top of fire hydrant in NW corner of Springett parking lot, elevation $150\mathrm{.}383$ m

BM$2$ SSIB $5\mathrm{.}0$ m west of Western Rd$.$ and $10\mathrm{.}0$ m north of Brescia Dr$.$

Complete the field notes for the question on the fieldnote worksheet at the end of this

examination. Assume all foresights and backsights have an approximately equal length

of $80$m$.$ If the readings close to within the required accuracy, calculate the most probable

elevation of the new BM$2.$ Include in your field notes sketches, notes, observations, etc.,

making assumptions as necessary.

Question $2$

$(10$ Marks$)($Complete on Field Note Paper$)$

As part of a traverse, the angle between points A$,$ B and C is being measured to the right

from point A$,$ with the instrument set at point B$.$ The readings after the first and fourth

turn are shown below. As well, the distance between points B and C is being measured

using a $30-$m steel tape $($coefficient of thermal expansion k $=0\mathrm{.}0000116/$C$).$ The weather

is hot and sunny, and the temperature is $28$C$.$ The tape was calibrated under standard

support at a temperature of $20$C and was found to be $30\mathrm{.}004$ m in length.

Complete the field notes, including any sketches, notes, observations, etc. that may be

necessary $($make assumptions as necessary$).$ Determine the magnitude of the observed

angle A$-$B$-$C and the distance B$-$C$.$ Use the fieldnote paper at the end of this

examination.

After first turn:

V $89$o $3030$

H $181$o $0220$

After fourth turn:

V $271$o $2930$

H $4$o $0600$

Forward distance:

$84\mathrm{.}333$ m

Backward distance:

$84\mathrm{.}315$ m

$(10$ Marks$)($Complete on Field Note Paper$)$

Shown in Figure $1$ on the following page are nine readings taken, in order, during a level

loop. The loop starts at BM$1$ and closes on the same point. The readings are BS$,$ FS$,$ BS$,$

FS$,$ etc., except the sixth reading, which is an IS shot to point CU$1($the top of a culvert$).$

The first and third turning points are not significant, but the second $($middle$)$ turning point

is a point which is to be established as BM$2.$

BM$1$ Top of fire hydrant in NW corner of Springett parking lot, elevation $150\mathrm{.}383$ m

BM$2$ SSIB $5\mathrm{.}0$ m west of Western Rd$.$ and $10\mathrm{.}0$ m north of Brescia Dr$.$

Complete the field notes for the question on the fieldnote worksheet at the end of this

examination. Assume all foresights and backsights have an approximately equal length

of $80$m$.$ If the readings close to within the required accuracy, calculate the most probable

elevation of the new BM$2.$ Include in your field notes sketches, notes, observations, etc.,

making assumptions as necessary.

Question $2$

$(10$ Marks$)($Complete on Field Note Paper$)$

As part of a traverse, the angle between points A$,$ B and C is being measured to the right

from point A$,$ with the instrument set at point B$.$ The readings after the first and fourth

turn are shown below. As well, the distance between points B and C is being measured

using a $30-$m steel tape $($coefficient of thermal expansion k $=0\mathrm{.}0000116/$C$).$ The weather

is hot and sunny, and the temperature is $28$C$.$ The tape was calibrated under standard

support at a temperature of $20$C and was found to be $30\mathrm{.}004$ m in length.

Complete the field notes, including any sketches, notes, observations, etc. that may be

necessary $($make assumptions as necessary$).$ Determine the magnitude of the observed

angle A$-$B$-$C and the distance B$-$C$.$ Use the fieldnote paper at the end of this

examination.

After first turn:

V $89$o $3030$

H $181$o $0220$

After fourth turn:

V $271$o $2930$

H $4$o $0600$

Forward distance:

$84\mathrm{.}333$ m

Backward distance:

$84\mathrm{.}315$ m