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WorksheetsD44 MASTER THE DAY
Total questions: 140
Worksheet time: 2hrs 20mins
Name
Class
Date
1.
Which method of levelling is preferred when precision is not required?
a)
Fly levelling
b)
Check levelling
c)
Barometric levelling
d)
Reciprocal levelling
2.
Which instrument part is responsible for supporting the level on ground?
a)
Tripod
b)
Eyepiece
c)
Diaphragm
d)
Level tube
3.
Which error occurs due to incorrect graduation of the staff?
a)
Natural error
b)
Instrumental error
c)
Personal error
d)
Observation error
4.
Which surface is perpendicular to the plumb line at all points?
a)
Vertical surface
b)
Datum
c)
Level surface
d)
Horizontal surface
5.
What is the function of the diaphragm in a level?
a)
Holds objective lens
b)
Holds cross hairs
c)
Supports eyepiece
d)
Holds level tube
6.
Which levelling staff type is most suitable for high precision work?
a)
Folding staff
b)
Invar staff
c)
Self-reading staff
d)
Target staff
7.
Which method is used to check accuracy of previously established levels?
a)
Check levelling
b)
Profile levelling
c)
Differential levelling
d)
Simple levelling
8.
Which part of level contains the bubble for horizontal adjustment?
a)
Eyepiece
b)
Objective lens
c)
Level tube
d)
Diaphragm
9.
Which type of levelling is used for long alignments like roads?
a)
Simple levelling
b)
Check levelling
c)
Profile levelling
d)
Fly levelling
10.
What is the least count of a typical self-reading staff?
a)
1 mm
b)
5 mm
c)
10 mm
d)
0.5 mm
11.
What contour line pattern represents a uniform slope?
a)
Parallel and equidistant lines
b)
Intersecting lines
c)
Irregular spaced lines
d)
Closed loop lines
12.
What type of contour is used to locate gradient on steep terrain?
a)
Contour gradient
b)
Horizontal equivalent
c)
Relief line
d)
Base line
13.
What is the method of spacing contours between known points?
a)
Sighting
b)
Interpolation
c)
Estimation
d)
Projection
14.
Which interpolation method is fastest but least accurate?
a)
Graphical
b)
Estimation
c)
Arithmetical
d)
Tacheometric
15.
Which lines on a contour map indicate a ridge?
a)
V-shaped with concave bends
b)
U-shaped with convex bends
c)
Closed loops with higher inside
d)
Closed loops with lower inside
16.
What is the standard contour interval for building site surveys?
a)
2 m
b)
5 m
c)
0.2 – 0.5 m
d)
10 m
17.
Which line connects summits and saddles in a contour map?
a)
Gradient line
b)
Base line
c)
Watershed line
d)
Relief line
18.
Which instrument is used in contouring to set gradients?
a)
Boning rod
b)
Ceylon Ghat tracer
c)
Ranging rod
d)
Dumpy level
19.
What pattern do contour lines form in case of a valley?
a)
Loop with higher values inside
b)
Loop with lower values inside
c)
U-shaped opening uphill
d)
V-shaped opening uphill
20.
What is the equation for combined curvature and refraction correction?
a)
0.0785 D²
b)
0.0673 D²
c)
0.0112 D²
d)
0.0871 D²
21.
If the RL of a benchmark is 102.500 m and the BS reading is 1.350 m, what is the HI?
a)
101.150 m
b)
103.850 m
c)
102.000 m
d)
104.250 m
22.
Calculate RL at a station if HI = 108.320 m and FS = 1.645 m.
a)
109.965 m
b)
106.675 m
c)
107.545 m
d)
108.120 m
23.
Assertion (A): Curvature of the earth causes staff readings to appear higher than actual.
Reason (R): The line of sight is a straight line while the earth’s surface is curved.
a)
Both A and R are true and R is the correct explanation
b)
Both A and R are true but R is not the correct explanation
c)
A is true but R is false
d)
A is false but R is true
24.
Which type of levelling staff is folded into two parts?
a)
Sopwith pattern staff
b)
Folding staff
c)
Target staff
d)
Telescopic staff
25.
What is the effect of refraction on the level line?
a)
Appears lower
b)
Appears curved
c)
Appears higher
d)
Remains unaffected
26.
Which type of levelling is best suited to determine differences across a wide river?
a)
Profile levelling
b)
Fly levelling
c)
Reciprocal levelling
d)
Precise levelling
27.
What does a bubble axis being non-parallel to the line of collimation cause?
a)
Personal error
b)
Staff graduation error
c)
Collimation error
d)
Refraction error
28.
What indicates a hill in a contour map?
a)
Closed contours with lower values inside
b)
Contours merging at one point
c)
Contours that open upward
d)
Closed contours with higher values inside
29.
In which interpolation method are contours estimated by spacing between points on ground?
a)
Graphical
b)
Estimation
c)
Arithmetical
d)
Coordinate method
30.
Which component of the level allows leveling of instrument using foot screws?
a)
Tripod
b)
Levelling head
c)
Diaphragm
d)
Bubble tube
31.
If RL of BM is 105.000 m and BS = 2.120 m, IS = 1.850 m, what is RL of IS point?
a)
106.870 m
b)
103.150 m
c)
105.270 m
d)
103.880 m
32.
A level is set up midway between A and B, 1000 m apart. Staff readings are 2.435 m at A and 1.980 m at B. What is the difference in level?
a)
0.455 m
b)
0.500 m
c)
0.330 m
d)
0.350 m
33.
Assertion (A): Contour lines never cross each other on a map.
Reason (R): Contour lines represent lines of constant elevation.
a)
Both A and R are true and R is the correct explanation
b)
Both A and R are true but R is not the correct explanation
c)
A is true but R is false
d)
A is false but R is true
34.
Match the following:
A. Dumpy Level - 1. Rigid Telescope
B. Y Level - 2. Reversible
C. Tilting Level - 3. Tilting Screw
D. Auto Level - 4. Self-aligning
a)
A-1, B-2, C-3, D-4
b)
A-2, B-1, C-3, D-4
c)
A-3, B-4, C-1, D-2
d)
A-4, B-3, C-2, D-1
35.
Which error occurs if the level is not setup firmly?
a)
Collimation error
b)
Parallax error
c)
Tripod settlement error
d)
Refraction error
36.
Which instrument is used to establish a grade in field contouring?
a)
Telescope
b)
Ranging rod
c)
Ceylon ghat tracer
d)
Boning rod
37.
Which method of levelling provides a complete check for all readings?
a)
Height of instrument
b)
Rise and fall
c)
Reciprocal levelling
d)
Barometric levelling
38.
Contour interval is inversely proportional to which factor?
a)
Map scale
b)
Map extent
c)
Relief type
d)
Horizontal equivalent
39.
Which of the following is NOT an instrumental error?
a)
Bent staff
b)
Improper focusing
c)
Incorrect graduation
d)
Shaky tripod
40.
In which levelling method are BS and FS always taken but not IS?
a)
Differential levelling
b)
Fly levelling
c)
Simple levelling
d)
Reciprocal levelling
41.
Which part of a level is responsible for collecting rays from the object?
a)
Eyepiece
b)
Objective lens
c)
Bubble tube
d)
Levelling head
42.
Which component magnifies the image for clear visibility?
a)
Diaphragm
b)
Eyepiece
c)
Tripod
d)
Plumb bob
43.
Contours with V-shaped bends pointing uphill represent?
a)
Valley
b)
Ridge
c)
Depression
d)
Plane
44.
Which method uses measured angles and distances for elevation determination?
a)
Hypsometry
b)
Barometric levelling
c)
Trigonometric levelling
d)
Fly levelling
45.
Which levelling error is caused by different densities in air layers?
a)
Curvature
b)
Collimation
c)
Refraction
d)
Tripod settlement
46.
Which of the following is a vertical plane component?
a)
Datum
b)
Plumb line
c)
Level tube
d)
Line of collimation
47.
What is the purpose of balancing sights?
a)
Time saving
b)
Focusing
c)
Eliminating combined error
d)
Quick plotting
48.
How is refraction correction calculated approximately?
a)
1/5 of curvature
b)
1/4 of curvature
c)
1/7 of curvature
d)
Equal to curvature
49.
Which type of staff is ideal for self-reading by observer through telescope?
a)
Target staff
b)
Telescopic staff
c)
Self-reading staff
d)
Folding staff
50.
Statement 1: Contour lines never intersect on a map.
Statement 2: Overhanging cliffs can cause contour lines to intersect.
a)
Both statements are true
b)
Both statements are false
c)
Only Statement 1 is true
d)
Only Statement 2 is true
51.
Statement 1: Refraction always increases the apparent height of staff reading.
Statement 2: Refraction bends light downward toward denser air.
a)
Both statements are true
b)
Both statements are false
c)
Only Statement 1 is true
d)
Only Statement 2 is true
52.
What is the purpose of a levelling head in surveying instruments?
a)
Support eyepiece
b)
Hold the diaphragm
c)
Allow precise horizontal adjustment
d)
Fix the tripod
53.
Which levelling staff type is also called a hinged staff?
a)
Telescopic staff
b)
Target staff
c)
Folding staff
d)
Invar staff
54.
Which method is best suited for detailed contouring over a small area?
a)
Direct method
b)
Cross-section method
c)
Tacheometric method
d)
Indirect spot level method
55.
What indicates a depression in a contour map?
a)
Closed contours with higher inside values
b)
Contours forming V-shape
c)
Closed contours with lower inside values
d)
Parallel contours
56.
Which error is caused by atmospheric density variations?
a)
Collimation error
b)
Refraction error
c)
Curvature error
d)
Parallax error
57.
Which part of the level forms a virtual image for reading?
a)
Eyepiece
b)
Tripod
c)
Level tube
d)
Objective lens
58.
In which contour method are radial lines laid from a common centre?
a)
Direct method by radial lines
b)
Cross-section method
c)
Graphical method
d)
Estimation method
59.
What is the standard contour interval used in hilly terrain with small-scale maps?
a)
0.5 m
b)
5–10 m
c)
2–3 m
d)
0.2–0.5 m
60.
Which level has the telescope rigidly fixed to its spindle?
a)
Wye level
b)
Cooke’s level
c)
Dumpy level
d)
Auto level
61.
Which type of bench mark is temporarily established at site?
a)
Permanent BM
b)
Temporary BM
c)
GTS BM
d)
Arbitrary BM
62.
Which levelling method gives the RL of many intermediate points quickly?
a)
Rise and fall method
b)
Reciprocal levelling
c)
Height of collimation method
d)
Simple levelling
63.
How is the horizontal line defined in levelling?
a)
Line on curved surface
b)
Straight line perpendicular to gravity
c)
Line perpendicular to datum
d)
Curved line passing through center
64.
Which type of level can be reversed end-to-end?
a)
Dumpy level
b)
Y level
c)
Tilting level
d)
Auto level
65.
Which staff has an invar strip for accuracy?
a)
Folding staff
b)
Target staff
c)
Telescopic staff
d)
Invar staff
66.
Which type of survey error is caused by wind?
a)
Natural error
b)
Instrumental error
c)
Collimation error
d)
Personal error
67.
Which part of the level magnifies both image and cross hairs?
a)
Objective lens
b)
Eyepiece
c)
Bubble tube
d)
Tripod
68.
Which surface is parallel to the mean curvature of Earth?
a)
Datum
b)
Level surface
c)
Horizontal surface
d)
Vertical surface
69.
Which error is minimized by setting up instrument at midpoint?
a)
Staff error
b)
Combined error
c)
Parallax error
d)
Instrumental error
70.
What type of surface is perpendicular to plumb line at all points?
a)
Datum
b)
Level surface
c)
Horizontal plane
d)
Vertical plane
71.
Which method is used when points are far apart and line of sight is obstructed?
a)
Simple levelling
b)
Reciprocal levelling
c)
Differential levelling
d)
Fly levelling
72.
Which contour spacing pattern indicates an even slope?
a)
Closely spaced
b)
Unevenly spaced
c)
Uniform spacing
d)
Intersecting lines
73.
What is the standard permissible error (C) for rough levelling?
a)
24
b)
96
c)
6
d)
12
74.
What does a series of V-shaped contours pointing downhill indicate?
a)
Depression
b)
Ridge
c)
Valley
d)
Hill
75.
Which staff is divided into 3 sliding sections?
a)
Telescopic staff
b)
Folding staff
c)
Self-reading staff
d)
Target staff
76.
Which method is most suitable for plotting contours in hilly terrain using angular measurement?
a)
Graphical
b)
Estimation
c)
Tacheometric
d)
By squares
77.
What is the best method for contour interpolation when highest accuracy is required?
a)
Estimation
b)
Graphical
c)
Arithmetic calculation
d)
Radial method
78.
In which method are points marked directly on ground surface for contour drawing?
a)
Indirect method
b)
Direct method
c)
Cross-section method
d)
Graphical method
79.
Assertion (A): Dumpy level provides stable readings over time.
Reason (R): Dumpy level has fewer moving parts and permanent adjustments.
a)
Both A and R are true and R is the correct explanation
b)
Both A and R are true but R is not the correct explanation
c)
A is true but R is false
d)
A is false but R is true
80.
Assertion (A): Boning rods are used for setting out sewer gradients.
Reason (R): Boning rods ensure horizontal alignment of drain pipes.
a)
Both A and R are true and R is the correct explanation
b)
Both A and R are true but R is not the correct explanation
c)
A is true but R is false
d)
A is false but R is true
81.
Match the following:
A. Backsight - 1. Plus sight
B. Foresight - 2. Minus sight
C. Change point - 3. Turning point
D. Datum - 4. Reference level
a)
A-1, B-2, C-3, D-4
b)
A-2, B-1, C-4, D-3
c)
A-1, B-4, C-2, D-3
d)
A-3, B-2, C-1, D-4
82.
Which staff is ideal for precise levelling in hot environments?
a)
Self-reading staff
b)
Invar staff
c)
Telescopic staff
d)
Target staff
83.
Which error is caused when line of sight is not horizontal?
a)
Personal error
b)
Collimation error
c)
Natural error
d)
Parallax error
84.
Which component of the level holds the cross hairs?
a)
Objective lens
b)
Eyepiece
c)
Diaphragm
d)
Bubble tube
85.
What is the equation for permissible error in levelling?
a)
E = C × K
b)
E = C/K
c)
E = C√K
d)
E = C²K
86.
Which method is best for contouring large and rough areas?
a)
Direct method
b)
By cross-section
c)
By squares
d)
Indirect by spot levels
87.
Which method of levelling is commonly used for long distances with few IS readings?
a)
Simple levelling
b)
Differential levelling
c)
Fly levelling
d)
Reciprocal levelling
88.
Which component ensures that the instrument is truly horizontal?
a)
Tripod
b)
Levelling head
c)
Bubble tube
d)
Eyepiece
89.
Which factor is NOT considered in selecting contour interval?
a)
Nature of ground
b)
Map scale
c)
Availability of GPS
d)
Survey purpose
90.
What does the term ‘datum’ refer to in levelling?
a)
Benchmark
b)
Vertical reference
c)
Level tube
d)
Plumb line
91.
What kind of line is a plumb line?
a)
Horizontal
b)
Sloped
c)
Curved
d)
Vertical
92.
Which levelling instrument allows quick setup with internal compensator?
a)
Tilting level
b)
Auto level
c)
Dumpy level
d)
Y level
93.
Which of these is NOT a temporary adjustment?
a)
Levelling up
b)
Focusing
c)
Setting up level
d)
Checking collimation
94.
In contour maps, uniform slopes are represented by:
a)
Unequal spacing
b)
Closely spaced lines
c)
Parallel evenly spaced lines
d)
Intersecting lines
95.
Which error results in incorrect staff reading due to non-verticality?
a)
Parallax error
b)
Instrumental error
c)
Personal error
d)
Collimation error
96.
What is the minimum number of levelling screws in a levelling instrument?
a)
2
b)
3
c)
4
d)
5
97.
Which line is tangential to a level surface at a point?
a)
Plumb line
b)
Vertical line
c)
Horizontal line
d)
Datum line
98.
Which component of the level is fixed before focusing?
a)
Diaphragm
b)
Objective lens
c)
Bubble tube
d)
Eyepiece
99.
Which method of contouring is suitable for road and canal projects?
a)
By squares
b)
By cross-section
c)
Tacheometric
d)
Direct
100.
What is a change point in levelling?
a)
Intermediate sight point
b)
First station
c)
Point where BS and FS are taken
d)
Benchmark
101.
Which type of error is collimation error classified as?
a)
Natural error
b)
Instrumental error
c)
Personal error
d)
Setup error
102.
What is the standard contour interval used for topographical maps?
a)
0.5–1 m
b)
2–3 m
c)
5–10 m
d)
10–15 m
103.
Which method is most suitable for small sites requiring high accuracy?
a)
Indirect by spot levels
b)
Direct method
c)
By squares
d)
By cross-section
104.
What is the main cause of refraction in levelling?
a)
Instrument tilt
b)
Earth curvature
c)
Air density variation
d)
Improper setup
105.
What is the function of the foot screws?
a)
Hold staff
b)
Adjust line of sight
c)
Level instrument
d)
Set cross hairs
106.
Which levelling staff is marked with alternate black and white bands?
a)
Target staff
b)
Folding staff
c)
Self-reading staff
d)
Invar staff
107.
Which type of level uses a tilting screw before each reading?
a)
Auto level
b)
Tilting level
c)
Dumpy level
d)
Y level
108.
Which type of error arises due to poor sight balancing?
a)
Collimation error
b)
Refraction error
c)
Combined error
d)
Curvature error
109.
In a level book, which method uses 'HI' values to compute RL?
a)
Rise and fall method
b)
Line of collimation method
c)
Reciprocal levelling
d)
Check levelling
110.
Which type of contour method is used in hilly terrain for large surveys?
a)
Direct method
b)
By squares
c)
By cross-section
d)
Tacheometric method
111.
What is the effect of curvature of Earth on staff reading?
a)
Increases reading
b)
Decreases reading
c)
No effect
d)
Reverses the reading
112.
What is the typical value of C in the permissible error formula for accurate levelling?
a)
6
b)
12
c)
24
d)
96
113.
What is the line joining optical center of object glass to the eyepiece center?
a)
Line of collimation
b)
Bubble axis
c)
Vertical axis
d)
Level axis
114.
Which levelling error is due to failure in focusing the objective correctly?
a)
Parallax error
b)
Refraction error
c)
Collimation error
d)
Instrumental error
115.
A benchmark has RL = 100.000 m and BS = 1.520 m. What is the height of instrument (HI)?
a)
101.520 m
b)
98.480 m
c)
100.520 m
d)
99.520 m
116.
If HI = 104.300 m and FS = 1.800 m, what is the RL of the point?
a)
106.100 m
b)
102.500 m
c)
103.000 m
d)
102.800 m
117.
Find the RL at a station where HI = 98.750 m and IS = 1.150 m.
a)
97.600 m
b)
99.900 m
c)
98.000 m
d)
97.500 m
118.
If RL of a point is 102.600 m and staff reading is 2.450 m, what is HI?
a)
105.050 m
b)
101.150 m
c)
104.850 m
d)
100.050 m
119.
Staff reading on floor is 1.79 m and RL of floor = 100.595 m. What is HI?
a)
102.385 m
b)
102.285 m
c)
101.385 m
d)
101.180 m
120.
Staff held inverted gives reading 3.890 m on underside of T-beam. If HI = 102.385 m, what is RL of underside?
a)
98.495 m
b)
106.275 m
c)
100.200 m
d)
103.280 m
121.
If RL of BM = 100.000 m, BS = 2.850 m and FS = 0.520 m, find RL of forward point.
a)
97.670 m
b)
98.520 m
c)
102.330 m
d)
100.000 m
122.
Correct staff reading if staff is 15 cm off vertical and observed reading is 2.625 m.
a)
2.620 m
b)
2.615 m
c)
2.630 m
d)
2.600 m
123.
Calculate curvature correction for a distance of 1200 m.
a)
0.113 m
b)
0.078 m
c)
0.120 m
d)
0.089 m
124.
Calculate refraction correction for 1200 m.
a)
0.016 m
b)
0.010 m
c)
0.022 m
d)
0.030 m
125.
Calculate combined correction for D = 2.48 km.
a)
0.483 m
b)
0.069 m
c)
0.414 m
d)
0.0673 m
126.
Permissible error for rough levelling over 4 km, C = 96?
a)
192 mm
b)
100 mm
c)
120 mm
d)
96 mm
127.
RL at point B using reciprocal levelling: Point A RL = 220.540 m, diff = -0.6025 m
a)
219.938 m
b)
220.000 m
c)
220.938 m
d)
219.000 m
128.
FS = 3.285 m, BS = 1.525 m, RL(BM) = 200.000. What is RL of forward point?
a)
198.240 m
b)
201.525 m
c)
201.700 m
d)
202.000 m
129.
BS = 6.655 on BM of 400.000. FS = 1.45. RL of point?
a)
394.795 m
b)
401.450 m
c)
405.205 m
d)
406.655 m
130.
Find RL from HI = 109.200 m and IS = 2.100 m
a)
107.100 m
b)
110.000 m
c)
106.000 m
d)
108.000 m
131.
Find combined error for D = 3.5 km
a)
0.824 m
b)
0.500 m
c)
0.920 m
d)
0.775 m
132.
RL from BM = 110.000, BS = 2.100, FS = 3.400?
a)
108.700 m
b)
109.000 m
c)
107.000 m
d)
111.000 m
133.
Calculate the RL at a point if staff reading = 1.325 m and HI = 106.000 m
a)
104.675 m
b)
105.325 m
c)
107.325 m
d)
104.825 m
134.
A BM has RL 98.500 m. A BS = 2.000 m is taken. What is HI?
a)
96.500 m
b)
100.500 m
c)
98.000 m
d)
99.000 m
135.
A BM has RL 120.000 m. Staff held inverted under bridge gives 4.000 m. Find RL underside of bridge.
a)
124.000 m
b)
116.000 m
c)
122.000 m
d)
126.000 m
136.
If BS = 1.875 m, FS = 2.430 m and BM RL = 200.000 m, find RL of forward point.
a)
199.445 m
b)
201.555 m
c)
198.000 m
d)
202.000 m
137.
Distance between two points is 2000m. Find curvature correction.
a)
0.314 m
b)
0.289 m
c)
0.275 m
d)
0.245 m
138.
Refraction correction over 2 km?
a)
0.045 m
b)
0.060 m
c)
0.050 m
d)
0.030 m
139.
Combined correction over 1.6 km?
a)
0.172 m
b)
0.144 m
c)
0.200 m
d)
0.180 m
140.
Permissible error for precise levelling over 1.5 km with C = 12?
a)
18 mm
b)
20 mm
c)
12.3mm
d)
14.7mm
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