| Vertical control in surveying means |
A) using precise levelling instruments
B) accurately measuring the vertical angles
C) accurately establishing the benchmarks
D) accurately establishing the contour lines
| GPS positioning is based on the principle of _____ which is the process of ranging off at least 3 objects with known position to determine a local position |
A) Resection
B) Trilateration
C) Trisection
D) Triangulation
| In Hyperspectral remote sensing the EM Spectrum is |
A) Discontinuous
B) Continuous
C) Discrete
D) Alternating
| The box sextant can be used to |
A) enlarge or reduce plans
B) measure distances
C) determine reduced levels of given points
D) measure angles and set gradients
| Eidograph is used |
A) for drawing profile of the ground
B) for drawing cross-section of the ground
C) to redraw maps at a smaller or larger scale
D) drawing lines on the plane table
| ERS, Envisat, Sentinel and RISAT are example of which type of satellites? |
A) Optical
B) Passive
C) Thermal
D) Microwave
| Which band of the electromagnetic spectrum has ability to penetrate in ground |
A) Visual
B) Infrared
C) Reflected infrared
D) Microwave
| Which of the following instruments is used for measurement of bases in India by the Survey of India? |
A) Tellurometer
B) Jaderin’s apparatus
C) Colby apparatus
D) Hunter’s short base
| Clinometer is a hand-held instrument used for |
A) rough measurement of vertical angles
B) precise measurement of vertical angles
C) rough measurement of horizontal angles
D) precise measurement of horizontal angles
| The Ceylon Ghat tracer is used to |
A) trace locations in maps
B) find slopes and location points on a gradient
C) find horizontal distances
D) find horizontal angles
