In order to do fly levelling the following type of methodology is adopted
(a) Rise & fall method
(b) Height of instrument method
(c) Both the above*
(d) None of the above

1 Answer

Answer :

c) Both the above*

Related questions

Description : Dumpy level is most suitable when (a) The instrument is to be shifted frequently (b) Fly leveling is being done over long distance (c) Many readings are to be taken from a single setting of the instrument* (d) All of the above

Last Answer : (c) Many readings are to be taken from a single setting of the instrument*

Description : Dumpy level is most suitable when (A) The instrument is to be shifted frequently (B) Fly levelling is being done over long distance (C) Many readings are to be taken from a single setting of the instrument (D) All of the above

Last Answer : (C) Many readings are to be taken from a single setting of the instrument

Description : The height of formation depends upon the a) Ground contours and the gradient adopted* b) Ground contour only c) Gradient adopted only d) Rainfall intensity over the year

Last Answer : a) Ground contours and the gradient adopted*

Description : 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)

Last Answer : (D) Both (b) and (c)

Description : The height gauge need to be provided in a) ROB b) RUB* c) FOB d) Fly Over

Last Answer : b) RUB*

Description : The method of plane tabling commonly used for establishing the instrument station is a method of (a) Radiation (b) Intersection* (c) Resection (d) Traversing

Last Answer : (b) Intersection*

Description : Conventional method of camber recording a) Piano wire with counter weight* b) By using leveling instrument c) Offset method d) None of the above

Last Answer : a) Piano wire with counter weight*

Description : The survey instrument used for reconnaissance survey (a) Theodelite & Dumpty level (b) Prismatic compass & Aneriod barometer* (c) All the above (d) None of them

Last Answer : (b) Prismatic compass & Aneriod barometer*

Description : Repairing by cement pressure grouting can be adopted in case of a) Honey comb concrete b) Hollow masonry, Dormant cracks c) Deep leached mortar joints d) all the above*

Last Answer : d) all the above*

Description : The maximum gradient in station yards should be ……. Unless special safely devices are adopted and/or special rules enforced. (a) 1 in 400* (B) 1 in 500 (c) 1 in 1000 (D) 1 In 600

Last Answer : (a) 1 in 400*

Description : .In Indian Railway how many Gauges of Track has been adopted a. 1 b. 3* c. 2 d. 4

Last Answer : b. 3*

Description : Theodolite is an instrument used for (a) Tightening the capstan-headed nuts of level tube (b) Measurement of horizontal angles only (c) Measurement of vertical angles only (d) Measurement of both horizontal and vertical angles*

Last Answer : (d) Measurement of both horizontal and vertical angles*

Description : Which one of the following practices is adopted for restoring the fertility of soil? (1) Weeding (2) Levelling (3) (2) sweet jowar (4) (4) Harrowing

Last Answer : (2) sweet jowar Explanation: Fallowing, in agriculture, is the mode of preparing land, by ploughing it a considerable time before it is ploughed for seed. As a result of fallowing, parts ... and thus reciprocally ameliorated; so that they may afford more uniform nourishment to the roots of plants

Description : Which one of the following practices is adopted for restoring the fertility of soil ? (1) Weeding (2) Levelling (3) Fallowing (4) Harrowing

Last Answer : Fallowing

Description : 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)

Last Answer : (C) Both (a) and (b)

Description : What is fly levelling? When it is carried out?

Last Answer : Fly levelling- It is the levelling operation in which only BS and FS are taken and no intermediate sights are observed. It is carried out when 1. To connect the BM to the starting point of ... BM. 3. To determine approximate reduced levels of points carried out with more speed and less accurate.

Description : Explain Fly Levelling with neat sketch. State situation under which fly levelling is needed.

Last Answer : Ans: When DifferentialLevelling is done in order to connect a bench mark to the starting point of the alignment of any project, it is called as fly levelling. Fly levelling is also done to connect ...  ii)if distance is more between two points.  iii)if there obstacles between the two points.  

Description : Which of the following best explains the pattern of mental growth? Options: A) A steady and uniform growth from birth to early adulthood B) A growth pattern paralleling the physical ... off to the middle twenties D) An erratic pattern from individual to individual precluding any generalization

Last Answer : C) A uniform rise to the middle teens and a gradual levelling off to the middle twenties

Description : Which of the following in theodolite work is imperfect adjustment of the instrument (a) Error due to line of collimation being perpendicular to the horizontal axis (b) Error due to axis not to perpendicular ... to imperfect graduation (d) Error due to eccentricity of vernires (e) All of the above*

Last Answer : (e) All of the above*

Description : The following instrument is used to set out a right angle (a) Cross staff (b) Optical staff (c) Prism square (d) None of the above (e) All the above*

Last Answer : e) All the above*

Description : While viewing through a level telescope and moving the eye slightly, a relative movement occurs between the image of the levelling staff and the cross hairs. The instrument is (A) Correctly focussed (B) Not correctly focussed (C) Said to have parallax (D) Free from parallax

Last Answer : (C) Said to have parallax

Description : Pick up the correct statement from the following: (A) The tangent screw enables to give small movement under conditions of smooth and positive control (B) Standing on the tripod is the levelling head ... used to tilt the instrument so that its rotation axis is truly vertical (D) All the above

Last Answer : (D) All the above

Description : Pick up the correct statement from the following: (A) An observation or the resulting reading with the level on a levelling staff is called sight (B) A back sight is the first sight taken after setting up ... position (C) The first sight on each change point is a fore sight (D) All the above

Last Answer : (D) All the above

Description : 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

Last Answer : (C) Measurement of horizontal distances in undulated areas

Description : In case of levelling, backsight is (a) A fixed point of known elevation (b) The last staff reading taken before shifting the instrument (c) The first staff reading taken after setting the instrument (d) Any staff reading taken on a point of unknown elevation

Last Answer : (c) The first staff reading taken after setting the instrument

Description : Compare Rise & Fall method and H.I. method. 

Last Answer : Sr.No.  Rise and Fall Method  H.I. Method  1 It is slow and more tedious.  It is more rapid and less tedious  2 It is laborious as it involves more calculations.  It is simple ... .S.- ΣF.S=ΣRise-Σfall =Last RL-First RL Arithmetical check ΣB.S.- ΣF.S=Last RL-First RL 

Description : In a precision planter the height of seed drop: A. Should be as close to be ground level as is possible. B. Should be at least 1 m from the ground level. C. Is not a factor to be considered? D. None of These

Last Answer : A. Should be as close to be ground level as is possible.

Description : Height of Low level platform for passengers for BG is --- high (a) 0.455 m* (b) 0.560 m (c) 0.650 m (d) 0.760 m

Last Answer : (a) 0.455 m*

Description : Height of high level platform for passengers for BG is --- high (a) 0.455 m (b) 0.560 m (c) 0.650 m (d) 0.760 m*

Last Answer : (d) 0.760 m*

Description : Height of platform of a flag station in cutting above rail level is (a) Same height as Rail level (b) 305 mm above rail level (c) 455 mm above rail level (d) 840mm above rail level*

Last Answer : (d) 840mm above rail level*

Description : The wash hand basin shall be fixed at a height of (a) 75-80 cm* (b) 75 cm (c) 80 cm (d) Not specified

Last Answer : (a) 75-80 cm*

Description : Maximum height of low level cistern from top of W.C. pan should be (a) 65 cm. (b) 30 cm. (c) 8 (d) 120 cm. (e) 80 cm.

Last Answer : b) 30 cm. (c) 8

Description : Defect of High joint is due to ? (i) Early trimming of weld (ii) Excess provision of height during alignment.* (iii) Early grinding of weld (iv) None of above

Last Answer : (ii) Excess provision of height during alignment.

Description : Defect of low joint is due to? (i) Excess height (ii) Early trimming of weld (iii) Early grinding of weld (iv) Nil/Less provision of height during alignment.

Last Answer : (iv) Nil/Less provision of height during alignment.

Description : Which gauge is used to measure the height of rail at the time of aligning of rails for AT welding? (i) Height gauge.* (ii) Vertical gauge (iii) Horizontal gauge (iv) As decided by site supervisor

Last Answer : (iv) As decided by site supervisor

Description : Torch is kept at height from top surface of rail head? (i) 30 to 55 mm (ii) 35 to 40 mm (iii) 40 to 45 mm

Last Answer : (iii) 40 to 45 mm

Description : Height of crucible is kept from top surface of mould? (i) 30 mm (ii) 40 mm (iii) 50 mm* (iv) 60 mm

Last Answer : (iii) 50 mm*

Description : The Height Gauge for a level crossing should be located at least --------- from the gate post a) 3 meters b) 5 meters c) 8 meters* d) 10 meters

Last Answer : c) 8 meters*

Description : For Box Culverts Danger level is to be taken as a) at the top of slab b)one third height below bottom of slab c) at the bottom of slab* d) None of the above

Last Answer : c) at the bottom of slab*

Description : Facia boards of platform shelters shall have a minimum horizontal clearance of ……. from C.L. of track at a minimum height of 4.61m above RL. a) 2360 mm b) 3660 mm c) 3000 mm d) 1600 mm*

Last Answer : d) 1600 mm*

Description : The maximum height above rail level for B.G. goods platform is ……. Mm (a) 1000mm (b) 1050mm (c) 1065mm* (d) 1075mm

Last Answer : (c) 1065mm*

Description : Height gauges should be located at a minimum distance of….. from gate post. (a) 5 m (b) 7.5m (c) 8m* (d)10m

Last Answer : (c) 8m*

Description : Maximum height of rolling stock on BG should be (a) 2745mm (b) 3250mm (c) 3450mm (d) 4140mm*

Last Answer : (d) 4140mm*

Description : What is maximum height above rail level for low-level passenger platform for BG? (a) 300mm (b) 455mm* (c) 525mm (d) 550mm

Last Answer : (b) 455mm

Description : Maximum height above rail level of high passenger Platform a. 860 mm b. 900 mm c. 840 mm&* d. 875 mm

Last Answer : c. 840 mm&*

Description : What is the height of 60 kg rail section? a. 180 mm b. 172 mm* c. 185 mm d. 165 mm

Last Answer : b. 172 mm*

Description : In LWR track on BG a) Level crossing should be separated by providing SEJs b) Level crossing cannot be provided in LWR. c) Level crossing should not fall within the breathing length of LWR* d) Level crossing should be laid with rail free fastenings.

Last Answer : c) Level crossing should not fall within the breathing length of LWR*

Description : The increased gain of 10 dbs for single line & ‘D’ marks rails on double/multiple lines shall be employed for classification of defects. (i) defect in weld (ii) defects in rail. * (iii) for both defects on weld & rail. (iv) None of above.

Last Answer : ii) defects in rail. *

Description : In AT welding process what is the role of asbestos powder & slag ? (i) To separate closing pin from portion* (ii) To hold the portion (iii) Both above are correct (iv) None of the above

Last Answer : (i) To separate closing pin from portion*

Description : In AT welding process what is the role of closing pin ? (i) To hold the portion before melt (ii) To hold the asbestos powder & slag (iii) Both above are correct* (iv) None of the above

Last Answer : (iii) Both above are correct*