Description : Which one of the following statements is not correct ? (a) A surveyor's compass has two sight vanes (b) A prismatic compass has an object vane and an eye vane (c) A trough compass ... table (d) In a prismatic compass the graduations on the aluminimum disc rotate and the index remains stationary
Last Answer : (a) A surveyor’s compass has two sight vanes
Description : The instrument which is used in plane tabling for obtaining horizontal and vertical distances directly without resorting to chaining, is known as (A) Plane alidade (B) Telescopic alidade (C) Clinometer (D) Tacheometer
Last Answer : (B) Telescopic alidade
Description : If the plane table is not horizontal in a direction at right angles to the alidade, the line of sight is parallel to the fiducial edge only for (A) Horizontal sights (B) Inclined sights upward (C) Inclined sight downward (D) None of these
Last Answer : (A) Horizontal sights
Description : In setting up a plane table at any station (A) Levelling is done first (B) Centering is done first (C) Both levelling and centering are done simultaneously (D) Orientation is done first
Last Answer : (C) Both levelling and centering are done simultaneously
Description : While setting a plane table at a station it was found that the error in centering was 30 cm away from the ray of length 40 m drawn from the station. If the scale of the plan is 1 cm = 2 cm, the displacement of the end of ... true position will be (A) 0.02 cm (B) 0.15 cm (C) 0.2 cm (D) 0.1 cm
Last Answer : (B) 0.15 cm
Description : The operation of revolving a plane table about its vertical axis so that all lines on the sheet become parallel to corresponding lines on the ground, is known (A) Levelling (B) Centering (C) Orientation (D) Setting
Last Answer : (C) Orientation
Description : After fixing the plane table to the tripod, the main operations which are needed at each plane table station are (i) Levelling (ii) Orientation (iii) Centering The correct sequence of these operations is (A) (i), (ii), (iii) (B) (i), (iii), (ii) (C) (iii), (i), (ii) (D) (ii), (iii), (i)
Last Answer : (B) (i), (iii), (ii)
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 : State the use of alidade in plane table surveying
Last Answer : 1) It is used for sighting the objects to be located. 2) It is used for drawing the rays.
Description : In setting up a plane table at any station (a) Leveling is done first (b) Centering is done first (c) Both leveling and centering are done simultaneously * (d) Orientation is done first
Last Answer : c) Both leveling and centering are done simultaneously *
Description : The method generally preferred to for contouring an undulating area, is (A) Chain surveying (B) Plane table surveying (C) Tacheometrical surveying (D) Compass surveying
Last Answer : (C) Tacheometrical surveying
Description : Prismatic compass is considered more accurate than a surveyor's compass, because (A) It is provided with a better magnetic needle (B) It is provided with a sliding glass in the object vane ( ... whole circle bearings (D) It is provided with a prism to facilitate reading of its graduated circle
Last Answer : (D) It is provided with a prism to facilitate reading of its graduated circle
Description : Which of the instruments is not used in Reconnaissance survey. (a) Prismatic compass (b) Dumpy level * (c) Aneroid Barometer (d) Pedometer
Last Answer : (b) Dumpy level *
Description : Which of the instruments is not used in Preliminary survey. (a) Theodelite (b) Tacheometer (c) Dumpy level (d) Plane table (e) None of them*
Last Answer : (e) None of them*
Description : Regarding plane-table survey, which of the following statements does not hold? (a) All the plotting work including contouring can be done in the field (b) It is quite suitable for small scale survey (c) Less number of control points are required (d) It can be done in all seasons
Last Answer : (d) It can be done in all seasons
Description : In a plane-table survey, the process of determining the plotted position of a station occupied by the plane-table by means of sights taken towards known points, the locations of which have already been plotted, is known as (a) Radiation (b) Resection (c) Intersection (d) Traversing
Last Answer : (b) Resection
Description : The plotting of inaccessible points in a plane-table survey can be done by the method of (a) Interpolation (b) Radiation (c) Intersection (d) Traversing
Last Answer : (c) Intersection
Description : While working on a plane table, the correct rule is: (A) Draw continuous lines from all instrument stations (B) Draw short rays sufficient to contain the points sought (C) Intersection ... drawing second rays (D) Take maximum number of sights as possible from each station to distant objects
Last Answer : (B) Draw short rays sufficient to contain the points sought
Description : Coffee can go in, but tea cannot. Riddles can go in, but question cannot. Quizzes can go in, but survey cannot. Spoon can go in, but fork cannot. Green can go in, but red cannot. Glass can go in, but plastic cannot. Door can go in, but window cannot. Why? -Riddles
Last Answer : You have to have double letters to go in.
Description : Centering error of a theodolite produces an error (A) In all angles equally (B) Which does not vary with the direction or pointing (C) Which varies with the direction of pointing and inversely with the length of sight (D) None of these
Last Answer : (C) Which varies with the direction of pointing and inversely with the length of sight
Description : 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
Last Answer : (C) To a target fixed on theodolite tripod on which theodolite may be fitted easily
Description : List any four methods of plotting a compass traverse survey & explain any one in brief. Also state the meaning of adjustment of closing error of traverse.
Last Answer : Methods of plotting compass traverse are: 1. By parallel meridian through each station. 2. By included angle. 3. By paper protractor. 4. By rectangular co-ordinates. 5. ... . 5. Finally join new points to get corrected traverse ABCDEA after graphical adjustment of closing error.
Description : State any four sources of errors in compass survey
Last Answer : Following are the sources of errors in compass survey1. Instrumental survey- a. Needle may not be perfectly straight and might not be balanced properly over the station. b. Graduations of the rings ... substances near the station. b. Magnetic field may vary on account of some natural causes.
Description : Describe in brief errors in compass survey.
Last Answer : Errors in Compass Surveying. The errors are classified as: 1. Instrumental errors. 2. Personal or Observational errors. 3. Errors due to External Influences (Natural errors etc.). (1 ... in magnetic declination. (iii) Local attraction due to proximity of electric lines, steel structures etc.
Description : State the principle of compass survey.
Last Answer : The principle of compass survey is traversing, which involves a series of connected survey lines (may be open or closed) whose lengths and bearing are measured by linear and angular measuring instruments.
Description : Pick up the method of surveying in which field observations and plotting proceed simultaneously from the following (A) Chain surveying (B) Compass surveying (C) Plan table surveying (D) Tacheometric surveying
Last Answer : (C) Plan table surveying
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 : Explain the radiation method of plane table survey with neat sketch.
Last Answer : This method is used when all the points to be plotted are visible from single instrument station. Steps are: 1. Select a suitable point P on the ground such that all the details are visible from it. 2. Center and ... , pc, pd, pe respectively. Join a, b, c, d, and e to give the outline.
Description : State merits and demerits of plane table survey.
Last Answer : Merits: 1) It is the most rapid method of surveying. 2)There is no need for field book as plotting is done along with the field work, so the problem of mistakes in booking field notes does not arise. ... to carry. 5) The map cannot be replotted to defferent scale as there is no field book.
Description : State the principle of plane table survey.
Last Answer : Principle of plane table survey 1. The rays drawn from different points should pass through a single point i.e. position of station point. 2. The position of table should be same as that of previous station i.e. orientation should be done at each changed station.
Description : State four advantages and four disadvantages of plane table survey
Last Answer : Advantages: 1. A field book is not required. 2. Errors of booking in field book avoided. 3. Errors of plotting can be readily checked. 4. Suitable in magnetic area. 5. Survey work with ... cannot be done in rainy season. 5. Difficult to re-plot as field notes are not available.
Description : Explain temporary adjustment of plane table survey.
Last Answer : 1. Setting over the station: The plane table is fixed on tripod and adjust the table in such a way that table is approximately level. 2. Leveling the table: The tubular or spirit level is placed in two ... . The table can be oriented in two ways. i. Using trough compass. ii. By back sighting.
Description : List any four accessories required for plane table survey.
Last Answer : 1. Plane table. 2. Plumbing U-fork. 3. Alidade. 4. Spirit level. 5. Trough compass. 6. Plumb bob.
Description : Describe in brief errors in plane table survey.
Last Answer : 1) The board not being horizontal. 2) The table not being accurately centered. 3) The table not being Correctly oriented. 4) The objects not being sited accurately. 5) The alidade not being ... through the station point. 7) Inaccuracy in plotting. 8) The expansion and contraction of the paper.
Description : Enlist different accessories of plane table survey with their use.
Last Answer : i) The plane table: It is used for fixing a drawing sheet over it. To locate the position of the objects on the sheet by drawing rays and plotting to suitable scale. ii) The Alidade (plain Alidade ... v) U-Fork or Plumbing fork with plumb bob: It is used for centering the table over the station.
Description : State the suitability of plane table survey
Last Answer : The plane tabling is generally suitable for surveys in which high precision is not required. It is mainly employed for small-scale or medium size mapping.
Description : State two advantages of telescopic alidade over simple alidade.
Last Answer : Advantages of telescopic alidade : i) Telescopic alidade is more accurate in bisection than simple alidade ii) Telescopic alidade is useful in comparatively longer range objects. iii) It can be easily ... is not possible by simple alidade. iv) It gives quicker bisection which saves time ultimately.
Description : What is advantage of wing telescopic alidade?
Last Answer : Advantage of wing telescopic alidade is as follows 1. The range of sight is more 2. Accurate bisection 3. Inclined line of sight is possible 4. Horizontal distance can be calculated using stadia hairs. 5. Quick levelling is possible due to circular bubble tube as compared to dumpy level.
Description : Accurate measurement of deflection angles with a transit not properly adjusted may be made by (A) Setting the Vernier A at zero at back station and then plunging the telescope (B) Setting the ... back sights one with the telescope normal and the other with telescope inverted (D) None of these
Last Answer : (C) Taking two back sights one with the telescope normal and the other with telescope inverted
Description : The systematic errors which persist and have regular effects in the performance of a survey operation are due to (A) Carelessness (B) Faulty instrument (C) Inattention (D) None of these
Last Answer : (B) Faulty instrument
Description : In chain surveying, perpendiculars to the chain line are set out by (A) A theodolite (B) A prismatic compass (C) A level (D) An optical square
Last Answer : (D) An optical square
Description : Surveys which are carried out to provide a national grid of control for preparation of accurate maps of large areas are known (A) Plane surveys (B) Geodetic surveys (C) Geographical surveys (D) Topographical surveys
Last Answer : (B) Geodetic surveys
Description : Which one of the following procedures for getting accurate orientation is the most distinctive feature of the art of plane tabling? (A) Radiation (B) Intersection (C) Traversing (D) Resection
Last Answer : (D) Resection
Description : When I was a kid, my grandma set my place at the table with knife, fork, and spoon plus this little flat sided utensil that you used to push beans and peas onto your fork. What was that called?
Last Answer : Perhaps a misused crumber or master butter knife? I’ve never heard of such a thing otherwise.
Description : When a vibrating tuning fork is placed on a table, a loud sound is heard. This is due to – (1) reflection (2) refraction (3) forced vibrations (4) damped vibrations
Last Answer : (3) forced vibrations Explanation: The tendency of one object to force another adjoining or interconnected object into vibrational motion is referred to as a forced vibration. In the case of the ... forced into vibration. This causes an increase in the amplitude and thus loudness of the sound.
Description : When a vibrating tuning fork is placed on a table, a loud sound is heard. This is due to : (1) reflection (2) refraction (3) forced vibrations (4) damped vibrations
Last Answer : forced vibrations
Last Answer : The famous political organization that made its debut centered on the Partition of Bengal - the Muslim League.
Description : As shown in the illustrations, which statement characterizes steering operations using the 'non-followup controller'? EL-0097 A. The rudder responds while the switch is held left or right and returns to mid- ... the switch is held right; in both cases, it remains in position when switch is 'off'.
Last Answer : Answer: B
Description : Erosion and pits formation on the impeller of a centrifugal pump may be due to (A) Cavitation (B) Low speed of impeller (C) Its operation with delivery valve closed for considerable time after starting the pump (D) Off centering of pump with motor
Last Answer : (A) Cavitation
Description : What feature adjusts the top and bottom margins so that the text is centered vertically on the printed page? a) Vertical justifying b) Vertical adjusting c) Dual centering d) Horizontal centering e) None of these
Last Answer : a) Vertical justifying