What is 'SAR' in remote sensing, a technology for producing fine-resolution images from a
resolution limited radar system?
Practice important objective questions for engineering competitive examinatio
What is 'SAR' in remote sensing, a technology for producing fine-resolution images from a
resolution limited radar system?
Assertion (A): The solution of three point problem in plane table surveying is aided by Lehman's
rules.
Relation (R): The application of Lehman's Rules reduces the triangle of error and is a controlled
trial and error technique.
An Engineer measured the distance between two locations on a plan having a scale of 1 cm =
50 m as 600 m. Later, however, he found that he used a wrong scale of 1 cm = 30 m to measure
the distance. The true distance between the locations is
The ability of remote sensing system to describe the smallest dimension on the Earth's surface
is called :
In plane tabling the instrument used to measure horizontal and vertical distances directly is
known as
Matching List-I (Traffic flow characteristics) with List-II (Figure/symbol) and select the correct
answer using the codes given below the lists:
A B C D
The additive and multiplying constants of a tacheometer, respectively, are
where f = focal length of objective, i = stadia interval and d = distance between the objective
lens and axis of theodolite
The maximum value of centrifugal ratio on roads and railways, respectively are taken as
As per Indian and Road Congress (IRC) recommendation, minimum radius of horizontal curve
on urban roads in plain terrain when the design speed is 60 km/h and super elevation is limited
to 7% is
The accuracy with which the instrument station can be established in plane table survey is
known as the
A vehicle moving at 50 km/h speed was stopped by applying brakes and the length of the skid
marks was 18 m. If the average skid resistance of the pavement is 0.75, the brake efficiency (in
%) of the test vehicle will be
Which of the following scales is the largest one?
If R is the radius of the main curve, D the angle of deflection, S the shift, and L the length of the
transition curve. The total tangent length of the combined curve is given by
Match the following parts of prismatic compass with their functionalities.
|
|
List-I |
|
List-II |
|
A |
Metal box |
1 |
Heart of the compass |
|
B |
Pivot |
2 |
Protective casing against dust |
|
C |
Lifting pin |
3 |
Centrally located part |
|
D |
Magnetic needle |
4 |
Provided right below the sight vane |
A B C D
The perpendicular offsets from a tangent to the junction of a transition curve and circular curve
is equal to
In a Bituminous pavement, alligator cracking is mainly due to
Match List I ( Phenomenon) with List II (Method of survey) and select the correct answer
|
|
List-I |
|
List-II |
|
A |
Crab and Drift |
1 |
Triangulation |
|
B |
Stadia intercept |
2 |
Astronomical survey |
|
C |
Culmination and elongation |
3 |
Aerial photogrammetric |
|
D |
Baseline measurement |
4 |
Techometric survey |
A B C D
Match the following list of tests of bituminous materials with its testing apparatus :
|
Bituminous materials tests |
Testing Apparatus |
||
|
A |
Ductility test |
P |
Ring and Ball test |
|
B |
Flash and Fire point test |
Q |
Penetrometer |
|
C |
Softening test |
R |
Standard briquett mould |
|
D |
Penetration test |
S |
Pensky-Martens closed test |
Consider below statements with respect to flexible pavements and identify identify correct
answer.
Statement A: The flexible pavement layers by grain to grain transfer through the points of
contact in the granular structure.
Statement B: Flexible pavements posses high or considerable flexural strength and are
flexible in their structural action under loads.
Match the angles under List-I (whole circle bearings) with their corresponding values under List 2 (quadrantal bearings)
|
|
List-I |
|
List-II |
|
P |
144°30' |
1 |
S 54° 30' E |
|
Q |
215° 30' |
2 |
N 35° 30' W |
|
R |
125° 30' |
3 |
S 35° 30' W |
|
S |
324°30' |
4 |
S 35° 30' E |
Select the correct option from the following statements related pavement materials.
Statement A: A prime coat is an initial application of low viscosity bituminous material to an
absorbent surface like granular base.
Statement B: Tack coat is provided for bonding the new bituminous layer to an old one.
Which of the following statement (s) is / are true while taking a change point during levelling?
(i) Foresight is taken before shifting the instrument
(ii) Foresight is taken after shifting the instrument
(iii) Backsight is taken after shifting the instrument
(iv) Backsight is taken before shifting the instrument
Consider the following statements regarding, the function of base course and sub- base
course in payement layers:
i.Prevent mud-pumping in rigid pavement
ii.Protect sub-grade of rigid pavement from frost action
iii.Provide tensile strength to the flexible pavement
iv. Distribute the load in flexible pavement
v. Prevent warping stresses in rigid pavement.
Which of the above statements are correct?
Which type of road pattern is shown in the given figure?
Which of the following statement is correct?
I.Simpson's one-third rule assumes that the short lengths of boundary between the ordinates
are parabolic arc.
II.Mid-ordinate rule is based on the assumption that the figures are trapezoids.
Which of the following statement is correct?
I. Check line is a line that is measured after the survey is completed to ensure the accuracy of the survey
II. Base line is the long survey line that runs through the middle of the area to be surveyedArrange the following in ascending order of width
P. Collector Street
Q. Arterial Road
R. Local Street
S. Sub-Arterial Road
Read the following about the uses of total station.
A. Direct measurement can be done by computerized software that is displayed in the total
station .
B. Vertical and horizontal angles are also shown in the total station.
C.For landsurveys, a total station is not so useful than measuring tapes.
Identify the INCORRECT statements.
In highway design, what does the "cross-fall" refer to ?
Consider below statement with respect to methods used to balance a traverse and identify the correct answer.
Statement A: The transit rule may be employed where angular measurements are less precise than the linear
Statement B: The Bowditch's method assumes that the errors in linear measurements are inversely
proportional to the square root of the length of the surveyed line
Which of the following is/are direct method of countouring?
i. Tachometric method
ii. Grid method/fus fafur
iii. Cross-section method
Match the following List - I (minor instrument) with List II (Use) with
the following
|
|
List-I |
|
List-II |
|
P |
Clinometer |
1 |
To measure area in a map / plan |
|
Q |
Prism square |
2 |
To set offsets |
|
R |
Planimeter |
3 |
To enlarge a map / plan |
|
S |
Pentagraph |
4 |
To measure angle of slope |
Codes: P Q R S
Consider the following statements regarding horizontal equivalent and contour interval.
i. Horizontal equivalent between two contour lines is always constant.
ii. Horizontal equivalent may be zero for a vertical cliff.
iii. Contour interval should be inversely proportional to the scale.
iv. For detailed design work, large contour interval is taken
Which of the given statements are correct?
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