Description : State the important points kept in mind while recording the readings in level pages with respect first reading, intermediate readings, last reading, and change point, carry forward from one page to next page - Remarks.
Last Answer : The following points should be kept in mind while recording the reading in level pages. 1. The first reading should be always noted as back sight (B.S.) 2. All the intermediate readings should ... horizontal line represents only one station. 8. Readings of each station should be in one line only.
Description : Mention any four points to be kept in mind while entering the staff reading in a level field book.
Last Answer : The following points kept in mind while entering the staff reading in a level field book. 1) The reading should be entered in the respective columns and in order of their observation. 2) The ... accurately described in the Remarks column, and their sketches drawn on the left hand side of the page.
Description : What is negative staff reading?
Last Answer : When the object is to be bisected is above line of collimation, then the staff is kept inverted for reading, such reading is entered with negative sign in the field book, which is known as negative staff reading.
Description : Define the terms - Foresight, back sight, intermediate sight and change point.
Last Answer : 1. Fore sight: It is the last staff reading from any set up of the leveling instrument and indicates the shifting of the instrument or end of leveling work. 2. Back sight: It is the first staff reading ... point fore sight is taken from one set up and a back sight is taken from the nest set up.
Description : Which one of the following statements is not correc t? (a) Parallax error is eliminated when there is no change in the staff reading when eye is moved up and down (b) The objective lens is ... (d) The eyepiece need not be adjusted after the first set up when the same surveyor is taking readings
Last Answer : (b) The objective lens is to be focused towards a white or bright background for clear visibility of cross-hairs
Description : A dumpy level was set up at mid-point between pegs A and B, 80 m apart and the staff readings were 1.32 and 1.56. When the level was set up at a point 10 m from A on BA produced, the staff readings obtained at A ... this set up at S should be (A) 1.435 (B) 1.345 (C) 1.425 (D) None of these
Last Answer : (B) 1.345
Description : When you check the specific gravity of the battery electrolyte with a hydrometer, it should be kept in mind that ____________. A. the battery is fully charged when the indicator floats low in ... taken immediately after water is added to the cell D. temperature has no effect on hydrometer readings
Last Answer : Answer: C
Description : State the uses of following instruments in survey: i)Cross staff ii) Chain iii) Pegs iv) Arrows
Last Answer : i) Cross-Staff: To set up perpendicular or right angle to given chain line OR to find foot of perpendicular from given object to a chain line. ii) Chain: Chains are used for measuring distances. iii) ... on survey lines. iv) Arrows : They are used to mark the end of each chain during chaining.
Description : If the addressee of ordinary article is not traceable and address of the sender is not noted on the article a) The article is kept in office undelivered b) The beat postman tries to find out ... in deposit for 7 days d) The article may be destroyed with permission of Postmaster / Sub postmaster
Last Answer : c) The deposit PA forward it RLO after passing remark in red ink after keeping in deposit for 7 days
Description : State the important point to be remembered while doing profile leveling.
Last Answer : 1. The chainage of staff stations are continuous from beginning to the end of the section line. 2. Readings of B.S. and F.S. should be taken very accurately with the bubble exactly in ... their width or by offset. 5)All the temporary adjustments at all instrument position shall carefully be done.
Description : State the points to be considered while selecting survey stations.
Last Answer : Points to be considered while selecting survey stations. 1. Stations shall be inter visible. 2. Stations shall be so selected that well conditional triangles should be formed. 3. Stations shall be ... they run as close to details to be established as possible and only short offsets are needed.
Description : Draw sketch and write the procedure for setting offset to the left or right side of suvey line with open cross-staff.
Last Answer : Procedure for setting offset with open cross staff : 1. Keep the ranging rods at point P(fixed on survey line) and at point A1 approximately. 2. The cross staff with stadia rod is fixed ... can be fixed and perpendicular offset AB is said to be set to given survey line PQ in left side.
Description : Write the uses of following survey instruments i) Ranging Rod ii) Pegs iii) Cross-staff iv) Plumb bob
Last Answer : i) Ranging Rod : Ranging rod are used for ranging. ii) Pegs : Pegs are used for marking the positions of stations or terminals points of survey lines. iii) Cross-staff : It is used ... It is also used for accurate centering of the surveying instruments like theodolite, compass, plane table etc.
Description : Pick up the correct statement from the following: (A) The lines of sight while observing back sight and fore sight lie in the same horizontal plane (B) The staff readings are measurements made ... readings are taken, coincides with the level surface through the telescope axis (D) All the above
Last Answer : (D) All the above
Description : State advantages of plane table survey one each with respect to booking and suitability
Last Answer : Booking of observations: i) Field work and plotting work done simultaneously ii) ) Notes of measurement are seldom required and possibility of mistakes in booking is eliminated. Suitability of PT ... and work where great accuracy is not required. ii) Mostly suitable for survey in plain terrain
Description : The difference of level between a point below the plane of sight and one above, is the sum of two staff readings and an error would be produced equal to (A) The distance between the zero of ... Thrice the distance between the zero of graduation and the foot of the staff (D) None of the above
Last Answer : (B) Twice the distance between the zero of graduation and the foot of the staff
Description : Write the code of signals used in ranging with respect to : i) Correct position ii) Fix the ranging rod iii) Vertical position of ranging rod iv) Move slowly to left of observer
Last Answer : i) Correct position : Both hands above Head and then Brought Down ii) Fix the ranging rod : Both Arms extended forward horizontally and the hands depressed briskly iii) Vertical position of ranging rod : 1 ... and moved to the Left iv) Move slowly to left of observer : Slow sweeps with Left Hand
Description : Differentiate between 'H.I. method' and 'Rise and Fall method' with respect to time, checks, application and simplicity.
Last Answer : Sr. No. Point of difference H.I. method Rise and fall method 1 Time Less time required for calculations of RLs. More time is required for calculations ... simple, rapid involving less calculation. Involves several calculations hence more laborious and time consuming.
Description : State importance of Change Point in levelling
Last Answer : During the process of levelling, sometimes some staff readings are not possible. In such circumstances with respect to last staff position, the instrument is shifted to new positioning and the levelling is ... change point. It is a point on which fore sight & back sight readings are taken.
Description : Define: i) Mean sea level, ii) Station point.
Last Answer : i) M.S.L: Mean sea level is the average height of the sea for all stages of tides. It is determined by averaging the hourly tide heights over a long period of 19 years at a place. ii) Station ... is a point which is to be established at a given elevation or it is a point where the Staff is held
Description : Ajay reads at an average rate of 30 pages per hour, while Vikram reads at an average rate of 40 pages per hour. If Ajay starts reading a novel at 4:30 PM and Vikram begins reading an identical copy of the same book at 5:20 PM, at ... same page? a) 7:50 PM b) 8:15 PM c) 8:40 PM d) 9:00 PM e) 9:25 PM
Last Answer : Ajay reads at average rate of 30 pages per hour ie. 1 page in every two minutes. Therefore, by 5:20 PM, he would have covered 25 pages By 6:20 PM, Ajay would have read 25+30 pages and Vikram would have ... and he will also finish 100 pages Hence, both of them will be on same page at 7:50 Answer: a)
Description : Differentiate between plane and geodetic survey on any four points.
Last Answer : Difference between Plane Surveying and Geodetic Surveying Points Plane Surveying Geodetic Surveying Definition Plane surveying is that type of surveying in which mean surface of ... Traditional survey equipment is used Precise and modern survey equipment are required
Description : Differentiate between open traverse and closed traverse on any two points
Last Answer : Differentiation between Open Traverse and Closed Traverse Closed Traverse Open Traverse When a traverse forms a closed polygon it is called as Closed Traverse When a traverse does not form a closed polygon it is ... angles = (2n + 4) x 90 There is no such check
Description : A dumpy level was set up at the midpoint between two pegs A and B, 50 m apart and the staff readings at and were 1.22 and 1.06. With the level set up at , the readings at and were 1.55 and ... upwards (B) 0.04 m inclined downwards (C) 0.04 m inclined upward (D) None of these
Last Answer : (B) 0.04 m inclined downwards
Description : Staff readings on pegs x and y from X station are 1.755 m and 2.850 m, and from station Y on staff head at Y and X are 0.655 m and 1.560 m. If reduced level of X is 105.5 m, the reduced level of Y is (A) 104.0 m (B) 104.5 m (C) 105.0 m (D) 105.5 m
Last Answer : (B) 104.5 m
Description : Define : 1) Bench mark 2) Datum surface 3) Line of collimation 4) Change Point
Last Answer : 1) Bench mark: - It is a fixed reference point of known elevation.. 2)Datum surface :-It is any arbitrarily assumed level surface from which vertical distance are measured 3) Line of collimation:- ... which the fore and back sights are taken. It is the point denoting the shifting of the level.
Description : Define Change point and its necessity in leveling.
Last Answer : Change point : It is the point at which both backsight and foresight readings are taken before and after shifting the level instrument. Necessity of change point in leveling : It is ... observations from single station due to large area, abrupt ground level variation and unavoidable obstruction.
Description : Define- 1. Datum 2. Change point
Last Answer : 1. Datum- It is the imaginary level surface or level line from which the vertical distance of different points are measured. 2. Change point- It is the point at which both back sight and foresight readings are taken before and after shifting the level instrument.
Description : Define : 1) Change point 2) Height of instrument.
Last Answer : 1) Change point It is point on which fore and back sights are taken. 2) Height of instrument. It is the reduced level of line of collimation when the leveling instrument is properly leveled. It is ... adding the BS reading to RL of bench mark or change point on which the staff reading was taken.
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
Description : Which things should be kept in mind while reading?
Last Answer : Answer: As a skilled reader you must recognize the writer's purpose, tone and attitude.
Description : State any four precautions to be taken while selecting stations for chain surveying.
Last Answer : Following are the precautions to be taken while selecting station for chain surveying. 1) As far as possible the survey work should be based upon the basic principle of surveying i.e. working from whole to ... level ground. 9) The survey lines should run as far as possible nearer to object.
Description : State the fundamental axes and mention their relationship for a dumpy level.
Last Answer : Fundamental axis of dumpy level are as follows; i) The vertical axis ii) The axis of bubble tube iii) The line of collimation iv) The axis of the telescope Relationship between ... iii) Axis of telescope and line of collimation should coincide when dumpy level is correctly leveled.
Description : State fundamental lines and their relationships with each other of dumpy level.
Last Answer : Fundamental axes of dumpy level : i) The vertical axis ii) The axis of bubble tube iii) The line of collimation iv) The axis of the telescope Relations of Fundamental axes : i) The ... to the axis of the bubble tube. iii) Axis of telescope and line of collimation should coincide.
Description : State fundamental axis of dumpy level and give their relationship
Last Answer : Fundamental axes of dumpy level : i) The vertical axis ii) The axis of bubble tube iii) The line of collimation iv) The axis of the telescope Relations of Fundamental axes : i) The ... parallel to the axis of the bubble tube. iii) Axis of telescope and line of collimation should coincide.
Description : State advantages of Auto-Level over dumpy level.
Last Answer : 1) Auto level gives quick and easy leveling with less effort than dumpy level. 2) It is most accurate and precise which gives least error about 0.5 to 0.8 in 5 km. 3) It is simply ... readings to read; which reflects inverted in some dumpy level. 5) It gives more operational comfort to surveyor.
Description : State and explain temporary adjustments of dumpy level.
Last Answer : 1. Setting up the level. a. The level fixed on tripod. b. The legs of tripod stand are well spread so that the level will remain stable on tripod. c. Bring all the three foot screws ... screw till the image is distinct and clear. The cross hair on the diaphragm should also be seen clearly.
Description : State any two desired relationship between fundamental axes of dumpy level.
Last Answer : Following are the desired relationship between fundamental axes of dumpy level. 1. The axis of level tube should be perpendicular to the vertical axis. 2. The line of collimation should be parallel to ... of bubble (level) tube. 3. Axis of telescope and line of collimation should be coinciding.
Description : State four advantages of auto level.
Last Answer : Advantages of auto level: 1. More precise/accurate leveling can be done using these levels. 2. The telescope of this instrument needs only be approximately leveled over the tripod and then the ... it reduces operational fatigue. 5. Clear and erect image. 6. Light weight and compact.
Description : A spring balance A and a beam balance B are used to weigh an object at different points on Earth. It will be observed that (a) The readings of A and B will be different at different points of the ... readings of A will be different but those of B will be the same at different points on the Earth.
Last Answer : Ans:(d)
Description : State the different point to be considered in selection of survey station for a closed traverse
Last Answer : 1) Main survey stations should be inter visible. 2) The main survey lines should form well-conditioned triangles. 3) Each triangle or portion of skeleton must be provided with sufficient check lines. ... ) Survey line must be as few as possible so that the frame work can be plotted conveniently.
Description : What are the points to be kept in mind by a Secretary while corresponding with Banks?
Last Answer : What are the points to be kept in mind by a Secretary while corresponding with Banks?
Description : What consideration would you have while selecting survey stations and survey lines in a chain survey?
Last Answer : Following points to be considered while selecting survey stations and survey lines 1) Main survey station should be mutually visible. 2) All triangles should be well conditioned. 3) The survey line should lie ... of the area so as to form the frame work of triangles on it to cover maximum area.
Description : While testing a semi-conductor diode with an ohmmeter, both the forward and reverse readings are almost in the infinity range. This would indicate that the unit is _____________. A. good B. open C. grounded D. shorted
Last Answer : Answer: B
Description : Draw a sketch and explain how to find height of chajja or slab using dumpy level.
Last Answer : Explanation : 1. First the back sight reading is taken on floor level whose RL is known to us; from which RL of instrument axis can be find out by adding RL of BM and BS reading. 2. Now ... staff reading. 4. Finally height of chajja is calculated as RL of slab bottom - RL of floor top.
Description : Define: i) Level Line, ii) Horizontal Line, iii) Vertical Line iv) Bench Mark.
Last Answer : j) Level Line: It is line lying in a level surface; it is therefore, normal to the plumb line at all points. ii) Horizontal Line: It is a straight line tangential to the level line at a ... RL determined with reference to the datum line. They serve as reference points for finding RL of new points.
Description : What is Level surface & Datum surface
Last Answer : Level surface : It is surface parallel to the mean spheroidal surface of the earth. It is normal to the direction of plumb line at all points. Datum surface : It is an arbitrary level ... may be referred. Vertical distances (elevations) of the points are measured with respect to this datum.
Description : Define the term: (1) Level surface (2) Line of collimation
Last Answer : Level surface: It is a surface parallel to the mean spheroidal surface of the earth. It is normal to the direction of plumb line at all points. The surface of still water is an example of level ... to the optical center of object glass and its continuation. It is also called as line of sight.
Description : Define the following terms: (i) Level surface {ii) Datum line (iii) Reduced level (iv) Axis of telescope
Last Answer : i)Level Surface : Any surface is parallel to mean spheroidal surface of earth is said to be a level surface. The water surface of still lake is also considered to be level surface. ii) ... an imaginary line passing through the optical Centre of object glass and optical Centre of the eye piece.
Description : Enlist the advantages of Auto level.
Last Answer : Following are the advantages of auto level: 1) Operational Comfort: Use of Auto level is free of fatigue, does not cause strain on eyes, nerves etc. 2) High precision : Precision of auto ... of application: Auto can be used for medium and large size project. To establish bench marks accurately.