MCQ Surveying 4

71.The collimation method for obtaining the reduced levels of points does not provide a check on ?

• fore sights 
• back sights 
• change points 
• intermediate sights 

72.In a prismatic compass, the zero of the graduated ring is located at ?

• north end 
• south end 
• east end 
• west end 

73.A tie line in a chain surveying ?

• checks the accuracy of the framework 
• enables the surveyor to locate the interior details which are far away from the main chain lines 
• fixes up the directions of all other lines 
• all of the above 

74.An imaginary line joining the point of intersection of the cross-hairs of the diaphragm and the optical centre of the object glass, is known as ?

• fundamental line 
• axis of telescope 
• axis of level tube 
• line of collimation 

75.An angle between the inclined line of sight and the horizontal is called ?

• direct angle 
• vertical angle 
• horizontal angle 
• deflection 

76.The method of plane tabling commonly used for establishing the instrument stations only, is a ?

• method of radiation 
• method of intersection 
• method of traversing 
• method of resection 

77.The surveying used to determine additional details such as boundaries of fields, is ?

• city surveying 
• location surveying 
• cadastral surveying 
• topographical surveying 

78.To find the true difference of level between two points, the level should be kept ?

• at either of the two points 
• exactly midway between the two points 
• at any point on the line joining the two points 
• none of the above 

79.A branch of surveying in which the horizontal and vertical distances of points are obtained instrumental observations, is known as ?

• chain surveying 
• plane table surveying 
• tacheometric surveying 
• hydrographic surveying 

80.An axis about which the telescope can be rotated in a horizontal plane, is called ?

• horizontal axis 
• vertical axis 
• axis of the level tube 
• line of collimation.

81.A method of differential levelling is used in order to find the difference in elevation between two points when ?

• they are too far apart 
• there are obstacles between them 
• the difference in elevation between them is too great 
• all of the above 

82.The plotting of small areas which can be commanded from a single station is usually done on the plane table by the method of ?

• radiation 
• intersection 
• traversing 
• resection 

83.In any closed traverse, if the survey work is correct, then ?

• the algebraic sum of latitudes should be equal to zero 
• the algebraic sum of departures should be equal to zero 
• the sum of northings should be equal to the sum of southings 
• all of the above 

84.The brightness of the image ........... the magnifying power ?

• is directly proportional to 
• is inversely proportional to 
• varies directly as the square of 
• varies inversely as the square of 

85.An imaginary line tangential to the longitudinal curve of the level at the centre of the axis called ?

• horizontal axis 
• vertical axis 
• axis of the level tube 
• line of collimation 

86.The traversing by the method of deflection angles is chiefly used in ?

• canals 
• highways 
• railways 
• all of these 

87.The multiplying constant for the tachometer is, generally, kept as ?

• 20 
• 40 
• 60 
• 100 

88.The curvature of the earth is taken into consideration if the limit of survey is ?

• 50 to 100 km² 
• 100 to 200 km² 
• 200 to 250 km² 
• more than 250 km² 

89.When the whole circle bearing of a traverse line is between ?

• the latitude is positive and departure is negative 
• the departure is positive and latitude is negative 
• both the latitude and departure are positive 
• both the latitude and departure are negative 

90. The method of surveying in which field work and plotting work are done simultaneously, is called ?

• compass surveying 
• levelling 
• plane tabling 
• chain surveying.