2011 C and G Drawin surveying paper

8/10/2019 2011 C and G Drawin surveying paper

1/10

I ffiil il] lflil

Ilil lilll lil

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6165-022

DECEMBER

2011

Technician

Diploma

in Construction

Drawing

and

surveying

techniques

2

-

principles

CitySp

Guilds

Tuesday

6

December

2011

09:30

-

11:30

You

should

have

the

following

for this

examination

.

a

multiple-choice answer sheet

.

a

pen

with

black

or blue

ink

.

a

non-programmable

calculator

This

question

paper

is the

property

of

the

City

and Guilds

of

London

lnstitute

and

is

to

be

returned after the

examination.

Read the

following

notes

before

you

answer any

questions

.

You

must

use a

pen

with

black

or blue

ink

to

complete al

parts

of the answer

sheet.

.

Check

that

you

have

the correct

answer

sheet

for

the

examination.

.

Check that

your

name and candidate

details

are

printed

correctly

at

the top

of

your

answer

sheet.

.

lnform the invigilator

if

your

name or examination

details are not

correct.

.

Each

question

shows four

possible

answers

(lettered

'd','b', 'c'and'd');

only one

is

correct.

.

Decide

which

one is

correct

and mark

your

answer

on

the

answer

sheet

with

your

pen.

For

example

if

you decide 'a'

is

correct,

mark your answer

like

this

o@o@

t-c*."t

lfc**t ltc"*t

)l-c-*r

I

lf

you

want to change

your

answer,

cancel

your

first

choice

by filling in the

'cancel'

box

below the circle like this

o@o@

I

(c*""t

)

{

c**'

I

fc*'".'

I

Then

mark the answer which you have now decided

is

correct.

For

example

if you

now decide

'c'

is

correct,

mark

your

answer

like

this

o@o@

Itc",""rltc**r

lfEi;n

Any

other marks on the

form

may

invalidate

some

of

your

answers.

.

Any

calculations

or

rough working can

be done on the

question paper.

.

Attempt

all

questions.

lf

you

find

a

question

difficult, leave

it and return

to

it later.

This

paper

contains

60

questions.

Answer them

using

the

'boxes'

numbered

1

to

60

on

the

answer sheet.

I

lllil iltil tilll

illfl lill

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llll

@

The

City

and

Guilds

of London

lnstitute

201 1

1,11,2247


2/10

Which

one

of

the

following

statements

correctly

describes

the

size

of

A3

paper?

a

Half

the

size

of A2

PaPer.

b

Twice

the

size

of

A2

PaPer.

c

Smaller

than

A4

PaPer.

d

Larger

than A1

Paper.

A

line

is

best

bisected

bY

using

a

a

pair

of

dividers

b

an

adjustable

set

square

c

a

pair

of

comPasses

d

a

protractor.

Which

one

of the

following

items

of

drawing

equipment

is

best

used

to

set

out

various

angles?

Which

one

of the

following

describes

a

classification

of the

hardness

of

a

pencil?

28,

2C.

2D.

2E,

Which

type

of

material

would

best

be

used

as an

overlay?

a

Cartridge

paper.

b

Detail

paper.

c

Tracing

paper.

d

Photocopying

Paper.

Which

one

of the

following

is

not

a

method

of

reproducing architectural drawings?

Dye

line.

Photocopy.

Lithograph.

Tracing.

When

producing

drawings

bY

CAD

the

operator

should

use

a

Polaroid

glasses

b

a

polarised

screen

c

a

flat

screen

d

a

fly

screen.

Which

one

of

the

following

symbols/hatching

is used

for

brickwork?

"m"m

,T,T

Which

one

of

the following

diagrams

shows

a

suspended

timber

floor

on

oversite

concrete?

a

b

c

d

-.

'o

a'a

a

b

c

d

L71-2247


3/10

14

0

11

Which

one of the

following

symbols

shows

a

fan?

Which

one

of the

following

symbols

is

used

to

show a

water

closet?

13

Which one of the

following

scales would

best be used

for a construction

detail?

a

1 :10.

b

1

:50.

c

1

:100.

d 1 :500.

Which

one

of the

following

pairs

of

lines are

used

in architectural drawings?

a Broken

line

: Section

line.

b

Section

line : Main

line.

c

Grid

line

: Branch

line.

d

Front'age

line

: Broken

line.

A

break

line is

indicated as

.AA

.@-

'H

Which one of the

following

projection

methods

would best

be used

for working

drawings?

a lsometric.

b Axonometric.

c

Orthographic.

d

Perspective.

Which

one of the following

diagrams

shows

the

symbol/hatching

for

hardcore?

"T

_E

fr

A

ok-

15

v

16

12

U

0

)

,,*,t

\tantion

17

Figure

1

Refer

to Figure

1.

Which one

of

the

following

views

shows

the

plan

view of the

object drawn?

atffiH

L7L2247

See

next

page


4/10

18

Which one

of

the

following

views

shows

a

vertical

section

of

a

house?

LEFT

SIT]E

.ELEVATION

Figure

2

Which

one

of the

following

views

shows

the

front elevation of

the

object in Figure 2?

MhHffi

The

main

purpose

of

a

Presentation

drawing

is to

a

enable

a builder

to

price

a

building

b

give

information

to

the

client

c

indicate

to the

workmen

the

speed

at

which

to

build

d

enable

a

builder

to

construct

a

building.

Which

one

of the

following

would

best

be

used

to

indicate

the

site and

its

surroundings?

a A site

plan.

b

A detailed sketch.

c

A

location

plan.

d

An architect's

instruction.

The

details for

a

steel

spiral

staircase

would

best

be

indicated

by

a

working

drawings

b

specialist

drawings

c

final

design

drawings

d

persPectivedrawings.

Which

one

of

the

following

indicates

the

position through

which

allthe

perspective

projection lines

pass?

a

Station

point.

b Objective.

c

Vanishing

point.

d

Ground

line.

Which one

of

the

following

statements

best

describes

the

advantages

of

using

CAD

in

the

production

of

drawings?

a

Ease of

correction

and individuality.

b Speed

of drawing

and

standard

detailing.

c 3D

capability

and

no

printing

required'

d

Colourful

images

and

sound

effects.

Which

one

of the

following

is

the

main

benefit

of

using

CAD

(computer-aided

design)

in

the

production

of

perspectives?

a

Coloured

images.

b

Wealth

of detail.

c

Ease

of

alteration.

d

Variable

viewpoints.

Which

one

of the

following

statements

best

describes

the

use

of sciagraPhY

on

drawings?

a

Shadows

and

trees.

b

Shadows

and

shading.

c Shadows

and

peoPle.

d

Shadows

and

vehicles.

Which

one of

the following

is

not

an

enhancement

to

a drawing?

a

Added

realism.

b

Added

detail.

c

Added

shadows.

d

Added

cost.

22

23

25

26

27

24

19

20

21

L7L2247


5/10

28

29

Which of the

following

would

best be

used

to

give

an

impression

of

realism

to

a

drawing?

a

Landscaping

and

linear scale

line.

b

Surround

detail and

landscaping.

c Linear

scale

line and dimensions.

d

Surround detail

and dimensions.

Which

one of the

following

is specifically

used with

computer-aided

design

software

packages?

a

Monitor.

b Mouse.

c

Printer.

d

TableUdigitiser.

Which

one

of the

following

is a

piece

of

computer

software?

a

VDU

monitor.

b

Autocad.

c

Mouse.

d

Printer.

Which

one

of the following

would

provide

an

independent

check for observations

and

measurements?

a

Open

traverse

with

angles

and

distances

measured.

Closed traverse with angles

and

distances

measured.

Triangulation

with

two

angles

measured.

Trilateration

with two distances

measured.

B

A

Not to

scale

Figure

3

Figure

3

shows a

triangle

ABC,

with

side

length

AC and

measured angles

at

A

and

B.

Using

the Sine

Rule

principle,

it can

be

shown by

inspection

only,

that the

side

length AB equals

a

206.40

m

b

224.25

m

c 235.82

m

d

264.16

m.

33

ln

fixing

the

position

of

the

corner

from

a

survey

line,

which

one

of the following

indicates

the

least accurate

method?

32

30

v

31

.

\)'l-::

TWO

MEASUREMENTS

SURI'EY LINE

THREE }.IEASUREMENTS

d

,t:.1**

34

SURVEY

LINE

T}NEE

IIEASUREMET{IS

ONE

MEASUREMENT,

ONE

A.IGL

The

angle

of slope

from X

to

Y

is incorrectly

booked

as

+7o

30'

instead

of

+4"

30'.

As

a

result,

the

measured slope

distance XY

has

been incorrectly

reduced

to a

horizontal

distance

of 120.24

m.

What should

be

the

correct horizontal

distance?

120.03

m.

120.61

m.

120.91

m.

121.28

m.

a

b

c

d

CORI{ER

OF

L'7L2241

See

next

page


6/10

35

36

Which one

of the

following

is an

example

of

a

cumulative

error when

observing

horizontal

angles?

a Target

not

set

up

vertically.

b

Collimation

error

in

the

instrument.

c lncorrect

focussing

of

the

target.

d

lncorrect

reading of

the

horizontal

circle.

Cumulative

errors

in surveying

are

more

serious

than

compensating

errors

because

a compensating

errors

can

be

located

more easily

b

they

are

caused

by

human

error

rather

than

by

instrumental error

c

they

are

caused

by

instrumental

error

rather

than

by

human

error

d they

can build

up

into large

errors.

Total

stations are

increasingly

preferred

to

ordinary

theodolites

because they

a rely

on

reflectors

in

order

to

measure

angles

and

distances

on

site

b

do

not

rely

on

reflectors

in order

to

measure

angles

and

distances

on

site

c

are

usually

lighter

to

carry

around

on

site

d

are cheaper,

faster and

more

accurate

than

traditional

instruments.

How

would

the

stadia distances

between

survey

points

be determined?

a

By

pressing

a

horizontalcomponent

button on

an

electronic

theodolite.

b

By observing

the

difference

between

lower and upper

hairs

and

multiplying

by

100.

c

Using trigonometry

to

calculate

the

distance

from

final

adjusted

co-

ordinates.

d

Applying

field

geometry

to

allow

for

obstructions

or

sloping

ground.

The

'Rise

and

Fall'

method

of

reducing

levels

is

often

preferred

to

the

'Height

of

Collimation'

method

because

it

a

is

quicker

b automatically

adjusts

any

closing error

c

checks

intermediate

sight

calculations

as

well

as

backsight

and

foresight

calculations

d

is

not necessary

to

add

up

backsight

and

foresight

columns

after the

levelling

has been

completed.

40

When

collimation

error

in a

levelling

instrument

is

suspected,

it is recommended

that

a

change

points

are

specially

selected

b

the

instrument

is

set

up as

low

as

possible

c backsight

and

foresight

readings

are

added

up

d

backsight

and

foresight

distances

are

equalised.

Figure

4

41 Figure

4

shows

a

levelling

situation

over

long

sights

in

which

errors

due

to

curvature

(C)

and

refraction

(r)will

occur.

The

necessary

corrections

to

be applied

will

be

+C-r

-C+r

+C+r

-C-r.

42

A

level

circuit

involving

five

change

points

reveals a

gross

error of 0.62

m.

Which one

of the following

is

the

most

likely

reason?

a Staff

not fully extended.

b Collimation

error

in

thb

instrument.

c Unstable

change

Points.

.-

d

Staff

not held vertically.

37

38

a

b

c

d

39

17A2247

I+ORIZOffTAL

LIHE

F

SIGIIT


7/10

lnvert

l**t

56.00m

H-*-#---B-ik-

.E

tc3

GT

2m

s6Hr R,

rrB

Figure

5

Figure 5 shows a sewer

falling from

inspection chamber

(lC)

1

to

lC 2 and

from

lC 2 to lC 3.

The invert

level

at

lC 3

is

a 54.70

m

b

54.90

m

c 54.97

m

d

55.15

m.

Which

one of the following

gradients

is the

same as a

2.5o/o

gradient?

a 1in2O.

b

1in25.

c

1in40.

d

1in50.

Which

one of the

following

accurately

describes the

main feature

of digital

levelling?

a

Automatic

height

computation

including

the

elimination of errors due to

curvature

and

refraction.

b

The

ability

to

level

points

which

are

not

in

the

line

of

sight.

c Heights are

automatically

related

to

site

datum.

d

Fully

automated

high

accuracy

electronic

measurement

to

bar

code

staffs.

serven

@JENL-

-

-n

m

SIG}IT RAIL

rrA

{f

43

Figure 6

46 Figure 6 shows sewer.

invert

levels at

A

and

B and

the

length AB. From

the

information

given,

the

gradient

of

the sewer

has

been

designed as

0.75%

1.25o/o

1.5o/o

2o/o.

47

Figure 7

Figure 7

shows

three survey

points

A, B

and C

with

co-ordinate

differences

as

follows

44

45

a

b

c

d

-v

Line

A---B

B---C

E

+17.56

+20.08

N

-24.82

+41.65

The distance

AC

can be

calculated

as

a

33.67

m

b 41.23 m

c

54.47

m

d

76.39

m.

L712247

See

next

page


8/10

48

to

/

/

/

^()123o

zt'

f

co'oRDINATES

cs.zz

J

oF

A

ARE

'

J''6

m

\

zi.o.ooE,180-ooN

\

g\

Figure

8

Figure

8 shows

stations

A

and

B and

the

direction

AQ.

lf

the

whole

circle

bearing

of

AQ

is 35"

24'the

co-ordinates

of

B are

a

197.36

E

196.50

N

b

223.50

E 137.36

N

c

256.50

E 137.36

N

d

278.15

E 154.60

N.

Magnetic

bearings

as used

in site surveying

are

less

reliable than

true

bearings

because

a

the direction

of

magnetic

north cannot

be established

on site

b

errors

in

observation

cannot

be

located

c

magnetic

bearings can

be

affected

by

local

attraction

d

magnetic bearings

(fonruard

and

back)

will always

differ

by

180'.

From

To

Face Left

Face

Right

A

B

C

c

B

A

c

B

A

00

10'20"

73

45',30"

73

45'30"

130

24'00"

130 24',00"

180

10'40"

180

10'40"

253

46',00"

253

45'30"

310

24',40"

310

24',40"

00

1 1'00"

Figure 9

50

Figure

9

shows

readings

taken

on

both

faces

for

a closed

traverse

ABC.

Which

one

of the

following

represents

the

closing

error

in

the

figure?

a

-00'25".

b

+00'20".

c

+00'35".

d

+00'50".

51 The

Bowditch

principle

of

adjusting

errors

in

a closed

traverse

requires

that

adjustment

per

line is

directly

proportional

to the

a

length

of

the

line

b

bearing

of

the

line

c nuniber

of

lines

in

the

traverse

d

co-ordinate

differences

of each

line.

Figure

10

52

A closed-loop

traverse

ABCDA

has

been

calculated

as shown

in

Figure

10.

What

is

the adjustment

for

the

line

CD

using

the

Bowditch

method?

49

a

+0.003

E

b

+0.004

E

c

+0.002

E

d

-0.002

E

-0.022

N.

-0.004

N.

-0.017

N.

+0.004

N.

iHlllll-:r

Figure

11

53

Figure

11 shows

part

of

a

grid

of

levels

on a

construction

site,

which

is

to

be excavated

down

to

a

formation

level of

10

m.

Having

regard

to

the

shape

of

the

site,

the average

depth

of

excavation

is found to

be

a

6.5m

b

6.9m

c

7.2m

d

7.9

m.

Line

Length

(m) CO-ORDINATE

DI

FFERENCES

AE+

AE-

nN+

AN-

AB

86.25

70.042

50.330

BC

136.84

41.243

130.477

CD

79.63

78.606

12.731

DA 98.38

32.691

92.790

Total

401

.10

111.285 111.297

143.208

143.120

1-7L2247


9/10

54

Figure

12

Using

the's'formula

the

area

of the triangle

ABC

in

Figure

12

is

a 670sqm

b

776sqm

c

1098

sq

m

d 9720 sq

m.

Figure

13

ln Figure

13 the area

of

the triangle

ABC is

given

by

a

lrabsinC

b

%

abcosC

c

Yz

acsinA

d

%

bccos

B.

Attached

to the arm of

a

planimeter

is

a

rolling wheel

which

records the

a

area

in hectares

b

area

in

square

metres

c

number

of

squares

and

part

squares

covering

the

site

d number

of

complete

revolutions

and

part

of

a

revolution.

Figure

14 shows three

control

points

A, B

and C.

The

table

below

has

been

prepared

for

calculating

the

area of the triangle

ABC.

Point

Co-ordinates

elN

Area

01

L2

|

OZ Ut

A

50.00 50.00

B

80.00

100.00

4000

5000

c

120.00

30.00

1 2000

2400

A

50.00

50.00

1

500

?

The missing

number

(?) in

the

table

is

a

6000

b

7000

c 8000

d

12 000.

d,rm

J L--

Figure 15

Figure 15

shows

part

of

a

circular

site

with

PQRS

(shaded)

as a concrete

area of

2.5

m

width.

Which one of the following

represents

the

shaded

area

PQRS?

a

76m2.

b

90

m2.

c 94m2.

.d

1O2 m2.

57

55

56

t

58

Figure

14

s(s

-a)(s -b)(s -c)

L7L2247 See

next

page


10/10

59

A

plan

used

on a construction

site

has a

60

Scale

conversion

from

1

:

500

to

1

:2OO

scale

in

which

10 mm

represents 5

m

on

means

that

site.

The

proportional

scale

referred

to

is

better

defined

as

a

the

new

scale

is

2lztimes

larger

b

the

new scale

is

2% times

smaller

a

1

:

S0

c

a

10 m

grid

will

become

closer

together

b

1:200

d alOmgridwill

becomeaSmgrid'

c

1:250

d

1

:500.

NOW

GO BACK

AND

CHECK

YOUR

WORK

.

IMPORTANT

-

Are

the details

at

the top

of

the

answer

sheet

correct?

Have

you

filled

in

your

answers

in

INK in

the appropriate

boxes

on the

answer

sheet?

t

1,71,2247

10

2011 C and G Drawin surveying paper

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Transcript of 2011 C and G Drawin surveying paper