1. The method of surveying used for determining the relative heights of points on the surface of the earth is called:
An arbitrary surface with reference to which the elevation of points is measured and compared is called:
A fixed point of reference of known elevation is called:
Height of a point in the vertical plane measured above or below the datum is called:
An imaginary line passing through the intersection of crosshairs at the diaphragm and optical centre of objective glass is called:
First staff reading taken after every setting up of instrument is called:
A point in levelling where both back sight and fore sight are taken is called:
The apparent movement of the image relative to the cross-hair is called:
Bench mark established by P.W.D department is called:
Bench mark established by Survey of Pakistan department is called:
Bench mark established at the end of a work day or when there is a break in the work is called:
Essential part of a level is:
Least count of metric staff is:
Least count of feet staff is:
In a 4 m telescope staff the length of the top sliding portion is:
The specific part of tilting level is:
Staff reading is made clear by rotating:
This level combines the good features of dumpy level and Y level:
In this level telescope can neither be removed from its socket nor it can be revolved:
The sensitiveness of a bubble tube can be increased by:
(A) Longitudinal Levelling
(B) Precise Levelling
(C) Contouring
(D) Levelling
(A) Datum surface
(B) Level surface
(C) Horizontal surface
(D) Vertical surface
(A) Change point
(B) Station point
(C) Datum
(D) Bench mark
(A) Change point
(B) Station point
(C) Reduced level
(D) Reduced distance
(A) Line of collimation
(B) Axis of bubble tube
(C) Axis of telescope
(D) Line of bubble tube
(A) Inter sight
(B) Fore sight
(C) Back sight
(D) Change sight
(A) Reference point
(B) Station point
(C) Instrument point
(D) Change point
(A) Magnification
(B) Focusing
(C) Parallax
(D) Tilting
(A) G.T.S B.M
(B) Permanent B.M
(C) Temporary B.M
(D) Arbitrary B.M
(A) G.T.S B.M
(B) Permanent B.M
(C) Temporary B.M
(D) Arbitrary B.M
(A) G.T.S B.M
(B) Permanent B.M
(C) Temporary B.M
(D) Arbitrary B.M
(A) Microscope
(B) Levelling head
(C) Spirit level
(D) Compass
(A) 0.1 m
(B) 0.01 m
(C) 0.001 m
(D) 0.005 m
(A) 0.1 m
(B) 0.01 m
(C) 0.001 m
(D) 0.005 m
(A) 1.5 m
(B) 1.2 m
(C) 1.3 m
(D) 1.75 m
(A) Foot screw
(B) Micrometer screw
(C) Clamping screw
(D) Focusing screw
(A) Eye piece
(B) Micrometer screw
(C) Foot screw
(D) Focusing screw
(A) Tilting level
(B) Cushing’s level
(C) Cook’s level
(D) Laser level
(A) Tilting level
(B) Auto set level
(C) Cook’s level
(D) Cushing’s level
(A) Decreasing diameter of observer
(B) Increasing viscosity of liquid
(C) Increasing roughness of tube walls
(D) Increasing radius of curvature of tube