Skip to main content

General Questions About Serving and Levelling part 1

 Question No. 01

To avoid large centering error with very short legs, observations are generally made
(A) To chain pins
(B) By using optical system for centering the theodolite
(C) To a target fixed on theodolite tripod on which theodolite may be fitted easily
(D) All the above
Answer: Option C
Question No. 02
Different grades are joined together by a
(A) Compound curve
(B) Transition curve
(C) Reverse curve
(D) Vertical curve
Answer: Option D
Question No. 03
Which of the following methods of theodolite traversing is suitable for locating the details which
are far away from transit stations?
(A) Measuring angle and distance from one transit station
(B) Measuring angles to the point from at least two stations
(C) Measuring angle at one station and distance from other
(D) Measuring distance from two points on traverse line
Answer: Option B
Question No. 04
The line of collimation method of reduction of levels, does not provide a check on
(A) Intermediate sights
(B) Fore sights
(C) Back sights
(D) Reduced levels
Answer: Option A
Question No. 05
Which of the following methods of contouring is most suitable for a hilly terrain?
(A) Direct method
(B) Square method
(C) Cross-sections method
(D) Tachometric method
Answer: Option D

Question No. 06
The chord of a curve less than peg interval, is known as
(A) Small chord
(B) Sub-chord
(C) Normal chord
(D) Short chord
Answer: Option B
Question No. 07
The size of a plane table is
(A) 750 mm × 900 mm
(B) 600 mm × 750 mm
(C) 450 mm × 600 mm
(D) 300 mm × 450 mm
Answer: Option B
Question No. 08
If the reduced bearing of a line AB is N60°W and length is 100 m, then the latitude and departure
respectively of the line AB will be
(A) +50 m, +86.6 m
(B) +86.6 m, -50 m
(C) +50 m, -86.6 m
(D) +70.7 m, -50 m
Answer: Option B
Question No. 09
A lemniscate curve between the tangents will be transitional throughout if the polar deflection
angle of its apex, is
(A)
(B)
(C)
(D)
Answer: Option D
Question No. 10
Contour interval is
(A) Inversely proportional to the scale of the map
(B) Directly proportional to the flatness of ground
(C) Larger for accurate works
(D) Larger if the time available is more
Answer: Option A
Question No. 11
The smaller horizontal angle between the true meridian and a survey line, is known
(A) Declination

(B) Reciprocal of operations involved
(C) Square root of the number of operation involved
(D) Cube root of the number of operation involved
Answer: Option C
Question No. 17
In direct method of contouring, the process of locating or identifying points lying on a contour is
called
(A) Ranging
(B) Centring
(C) Horizontal control
(D) Vertical control
Answer: Option D
Question No. 18
The conventional sign shown in below figure represents a
(A) Road bridge
(B) Railway bridge
(C) Canal bridge
(D) Aquaduct
Answer: Option A
Question No. 19
Pick up the incorrect statement from the following:
(A) While measuring a distance with a tape of length 100.005 m, the distance to be increasing
by 0.005 m for each tape length
(B) An increase in temperature causes a tape to increase in length and the measured distance is
too large
(C) The straight distance between end points of a suspended tape is reduced by an amount
called the sag correction
(D) A 100 m tape of cross section 10 mm × 0.25 mm stretches about 10 mm under 5 kg pull
Answer: Option B
Question No. 20
For the construction of highway (or railway)
(A) Longitudinal sections are required
(B) Cross sections are required
(C) Both longitudinal and cross sections are required
(D) None of these

Answer: Option C
Question No. 21
Detailed plotting is generally done by
(A) Radiation
(B) Traversing
(C) Resection
(D) All of the above
Answer: Option A
Question No. 22
If the smallest division of a vernier is longer than the smallest division of its primary scale, the
vernier is known as
(A) Direct vernier
(B) Double vernier
(C) Retrograde vernier
(D) Simple vernier
Answer: Option C
Question No. 23
The method of reversal
(A) Is usually directed to examine whether a certain part is truly parallel or perpendicular to
another
(B) Makes the erroneous relationship between parts evident
(C) Both (a) and (b)
(D) Neither (a) nor (b)
Answer: Option C
Question No. 24
The line normal to the plumb line is known as
(A) Horizontal line
(B) Level line
(C) Datum line
(D) Vertical line
Answer: Option B
Question No. 25
In levelling operation
(A) When the instrument is being shifted, the staff must not be moved
(B) When the staff is being carried forward, the instrument must remain stationary
(C) Both (a) and (b)
(D) Neither (a) nor (b)
Answer: Option C

Question No. 26
The two point problem and three point problem are methods of
(A) Resection
(B) Orientation
(C) Traversing
(D) Resection and orientation
Answer: Option D
Question No. 27
Ramsden eye-piece consists of
(A) Two convex lenses short distance apart
(B) Two concave lenses short distance apart
(C) One convex lens and one concave lens short distance apart
(D) Two Plano-convex lenses short distance apart, with the convex surfaces facing each other
Answer: Option D
Question No. 28
The line of sight is kept as high above ground surface as possible to minimise the error in the
observed angles due to
(A) Shimmering
(B) Horizontal refraction
(C) Vertical refraction
(D) Both shimmering and horizontal refraction
Answer: Option D
Question No. 29
If is the stadia distance, is the focal length and is the distance between the objective and
vertical axis of the techeometer, the multiplying constant, is
(A) f/i
(B) i/f
(C) (f + d)
(D) f/d
Answer: Option A
Question No. 30
The desired sensitivity of a bubble tube with 2 mm divisions is 30". The radius of the bubble tube
should be
(A) 13.75 m
(B) 3.44 m
(C) 1375 m
(D) None of these
Answer: Option A
Question No. 31
Subtense bar is an instrument used for

(A) Levelling
(B) Measurement of horizontal distances in plane areas
(C) Measurement of horizontal distances in undulated areas
(D) Measurement of angles
Answer: Option C
Question No. 32
Volume of the earth work may be calculated by
(A) Mean areas
(B) End areas
(C) Trapezoidal
(D) All the above
Answer: Option D
Question No. 33
Tacheometric formula for horizontal distances using horizontal sights can also suitable be
(A) The constants by sin2
(B) The constants by cos2
(C)
(D) The multiplying constant by cos2
Answer: Option D
Question No. 34
Pick up the correct statement from the following:
(A) The directions of plumb lines suspended at different points in a survey are not strictly
parallel
(B) In surveys of small extent, the effect of curvature may be ignored and the level surface of
the earth is assumed as horizontal
(C) In surveys of large extent, the effect of curvature of the earth must be considered
(D) All the above
Answer: Option D
Question No. 35
In levelling operation
(A) If second reading is more than first, it represents a rise
(B) If first reading is more than second, it represents a rise
(C) If first reading is less than second, it represents a fall
(D) Both (b) and (c)
Answer: Option D

Labels:

Comments

Post a Comment

Popular post

What is Slump Test of Concrete-Cone Test Procedure | Workability of Concrete

Slump Test of Concrete-Cone Test Procedure | Workability of Concrete Slump test procedure is to determine the workability of concrete. One of the major problems that you had faced in your field work is concrete compaction during mixing.After mix design, you may have doubt, is this design will be ok? Yes, your design willl be ok in terms of strenght point of view of concrete.But the main problem arises when the mixing of fresh concrete, the compaction of fresh concrete will be very tough.In this situation, you can add some plasticizers without affecting your water-cement ratio or cement-aggregate ratio. Before adding plasticizers or superplasticizers to your fresh concrete, you need to check the workability of your concrete.The slump test is used for checking the workability of concrete.Let us check how can we do slump test of fresh concrete. Apparatus used for cone test procedure 1)Measuring scale 2)Tamping rod 3)Base plate 4)Nonporous base plate 5)Mould for slump test.
Post a Comment
Read more

Different methods of road construction in civil engineering

Different methods of road construction in civil engineering 1) Concrete: It is a common option for road construction purposes as they are a solid material and can be used for building walls and local roads. This method is considerably less prone to wear and tear defects like rutting, cracking, stripping loss of texture, and potholes. This is the main reason for its wide usage. 2) Asphalt: This method of construction replacing concrete method in these days. They are very durable, water-resistant and can go more longer then the concrete. The major advantage of asphalt over concrete is its price. Concrete is very expensive as compared to asphalt. Moreover, asphalt includes low noise during pavement and it is easy to handle it for repairing and maintenance. That is why it is widely accepted and used by the people for the purpose of pavement surfacing. 3) Composite: This method is widely used for the maintenance, recycling, and rehabilitation of the roads. The composite mater
Post a Comment
Read more

Design Requirement of reinforced Concentrate slab

Table  Content 1 Effective span for concentrate slab design 2 Limiting stiffness 3 Minimum reinforcement 4 Maximum diameter of bar 5 Distribution reinforcement concentrate for slab design 6 Cover to reinforcement Let discuss briefly '''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''' 1. Effective Span for concrete slab design For simply supported slab Minimum of clear span plus effective depth of slab Center to center
Post a Comment
Read more

What’s the difference between m20 and c20 grade concrete?

 A concrete of Grade C20 means that the concrete will have a compression resistance of 20 N/mm² per square millimeter in 28 days. Proportion for grade C20. C20 is 1:2:4 (1 part cement, 2 parts fine aggregate, and 4 parts coarse aggregate.) where as C20 symbolizes a Cylindrical sample in which cement, fine aggregates, coarse aggregates are mixed in such a ratio that its characteristic compressive strength is 20 N/mm² after 28 days of curing. Fig:- Concrete specimen for testing Generally Strength of Cylinder sample= 0.8 x Strength of Cube. example:- M20 is equivalent to C25 M20 means the grade of concrete is defined as the minimum strength of concrete after 28 days. For the M20 Grade of concrete, The letter ‘M’ refers to the mix, and 20 represents the characteristic strength of concrete in MPa or N/mm². The specified characteristic strength of concrete is determined for 150mm size cube at 28 days. The Characteristic Compressive strength of concrete is defined as the strength of concrete
Post a Comment
Read more

WHAT ARE THE DESIGN PROCEDURES FOR A BUILDING FOUNDATION?

  DESIGN PROCEDURES FOR A BUILDING FOUNDATION 1. DECIDE THE LOCATION OF COLUMNS & FOUNDATION AND TYPE OF LOADS ACTING ON THEM.(E.X DEAL LOAD,  LIVE LOAD OR WIND LOAD) 2. ESTIMATE ALLOWABLE BEARING PRESSURE OF SOIL USING GROUND INVESTIGATION REPORT. 3. DECIDE DEPTH OF FOUNDATION 4. CALCULATE FOUNDATION AREA 5. DETERMINE VARIATION IN VERTICAL STRESSES 6. CALCULATE SETTLEMENT 7. COST CONTROL 8. CONSIDER TIME 9. VARIATION IN GROUND CONDITION 1. DECIDE THE LOCATION OF COLUMNS & FOUNDATION AND TYPE OF LOADS ACTING ON THEM.(E.X DEAL LOAD,  LIVE LOAD OR WIND LOAD) On the building plan, the position of columns and load bearing walls should be marked, and any other induced loading and bending moments. The loads should be classified into dead, imposed and wind loading, giving the appropriate partial safety factors for these loads. 2. ESTIMATE ALLOWABLE BEARING PRESSURE OF SOIL USING GROUND INVESTIGATION REPORT. From a study of the site ground investigation (if available), the strength of
Post a Comment
Read more

Shear cap vs drop panel

 Shear cap vs drop panel  Flat slab design is usually associated with punching shear. In order to reduce the shear stress induced around columns designers usually increase the slab thickness near the column. This increase in thickness in the vicinity of columns is usually called " drop panel ".  Is it technically correct to call every thickness increase around columns drop panel? The answer to this question is NO! And let's see an article from ACI 318-14 to arrive at a correct naming/term. drop panel -  projection below the slab  used to reduce the amount of negative reinforcement over a column or the minimum required slab thickness, and to increase the slab shear strength. shear cap - projection below the slab used to increase the slab shear strength shear caps (popularly called  shear  heads) are commonly used, especially when the transverse reinforcement does not give the required load capacity. The second advantage of using the shear heads is the increased stiffnes
Post a Comment
Read more

What is The Difference Between Expressway, Highway, Motorway, Causeway, And Freeway

  The Difference Between Expressway, Highway,  Motorway, Causeway, And Freeway        Various road terminologies are bound to be used without proper or thorough information or enlightenment on the reasons behind such terminologies. Roads come in different types and for different utilization.  1. Expressway. An expressway is a wide road which is targeted at fast moving traffic. Unlike many other roads on the list, the expressway features multiple demarcated lanes which could also include a service lane. The point of the expressway is to promote smooth movement of traffic by dedicating lanes for vehicles about to use the intersections. As earlier stated, most expressways include a service lane. This auxiliary lane is meant for vehicles about to access a street or an intersection. The purpose of the service lane is so that these cars do not disturb the rest of the cars navigating the major roads on the expressway.   2. Highway. Highway is a term used to describe a stretch of road connecti
Post a Comment
Read more