Surveying (Part-4) (General Engineering) (SSC JE)

Total Questions: 22

1. One metre is equal to: [RRB JE(Patna/Muzaffarpur/Chennai/Ahmedabad/Bangalore) 14.12.2014]

Correct Answer: (b) 10⁶ micron
Solution:

1 m = 10⁶ micron
1 micron = 10⁻⁶ m

2. The branch of surveying in which only linear measurements are directly made in the field is [RRB JE (Bilaspur/Guwahati/Patna) 14.12.2014 ]

Correct Answer: (b) Chain surveying
Solution:

Chain surveying– The branch of surveying in which only linear measurements are directly made in the field.

Land surveying– Land surveying is the technique profession are and science of determining the terrestrial or three dimensional positions of points and the distance and angle between them.

Engineering surveying– These are survey work required before, during and after any engineering works.

Topographical survey– This survey shows the height, depth, size and location of any manmade or natural features of land.

3. A theodolite is used for measuring [RRB JE (Bilaspur/Guwahati/Patna) 14.12.2014 ]

Correct Answer: (d) Angles
Solution:

Theodolite surveying– Theodolite surveying is that branch of surveying in which theodolite is used to measure the horizontal and vertical angles.

• A theodolite is a very precise instrument, mainly used for determining the horizontal and vertical distances between two points. It can also be used for prolonging a line, measuring distances indirectly, as a level, like a tachometer. Due to its wide range of application, it is also termed as 'universal instrument'.

4. Contour lines drawn on a map, are the lines which pass through [RRB JE (Bilaspur/Guwahati/Patna) 14.12.2014 ]

Correct Answer: (b) Same elevation
Solution:

A contour line joints all the points having equal elevation (height) above a given level, such as mean sea level.
• A contour map is a map illustrated with contour lines, for example a topographic map, which thus shows valleys and hills, and the steepness or gentleness of slopes.

5. Distance between two buildings is 100 m. A surveyor is standing at a distance of 40 m from the taller building on a line joining them. If the angle of elevation measured by him for the taller building is 1.5 times the angle of elevation of the smaller building, what is the height of smaller building? [RRB JE (Bilaspur/Guwahati/Patna) 14.12.2014 ]

Correct Answer: (d) Data insufficient
Solution:

Data insufficient

6. A 30m metric chain is found to be 0.1m too short throughout the measurement. If the distance measured is recorded as 300m, then the actual distance measured will be [RRB JE (Bilaspur/Guwahati ) 14.12.2014 / BPSC AE (GEN. ENGG.) 16.09.2018 ]

Correct Answer: (c) 299 m
Solution:

7. Which one of the following methods of levelling eliminates the error due to curvature and refraction? [RRB JE (Bilaspur/Guwahati ) 14.12.2014 ]

Correct Answer: (b) Leveling by equalizing the distances of backsight and foresight
Solution:

Levelling by equalizing the distances of backsight and foresight method of levelling eliminates the error due to curvature, refraction and inclination of line of collimination.

8. How much is the measuring capability of digital planimeter w.r.t. an ordinary planimeter ? [MPSC AE PRE.- 23.06.2019 ]

Correct Answer: (d) 100 times larger
Solution:

Digital planimeter–An instrument used to measure the areas of maps or planes and flat surface in general.
• Its accuracy is ±0.2% of whole scale.
• Measuring capability is 100 time larger than ordinary planimeter.

9. Type of surveying in which the shape of the earth is taken into account is known as [MPSC AE PRE.- 23.06.2019 ]

Correct Answer: (c) Geodetic surveying
Solution:

Geodetic surveying is that type of surveying in which the shape of the earth is taken into account. All lines lying in the surface are curved lines and the triangles are spherical triangles.

10. Out of the following, which is the component of G.I.S. ? [MPSC AE PRE.- 23.06.2019 / MPSC AE PRE -09.07.2017 ]

Correct Answer: (d) All of the above
Solution:

Geographic Information System (GIS)– These are programs that work together to help users makes sense of their spatial data.

GIS has following components–
• Software
• Hardware
• Data management
• End user and method