-first increases and then decreases
:-first decreases and then increases
D:-increases
Correct Answer:- Option-D
Question46:-For no tension to develop in a gravity dam of base width b, the eccentricity should be
A:-greater than b/3
B:-less than b/3
C:-less than b/6
D:-greater than b/6
Correct Answer:- Option-C
Question47:-A head regulator is provided
A:-across the river where a canal takes off
-across the canal when it takes off from a river
C:-when the canal is to be taken above the river
D:-none of the above
Correct Answer:- Option-B
Question48:-The colour of water is measured on
A--silica scale
-turbidity scale
C:-platinum cobalt scale
D:-threshold scale
Correct Answer:- Option-C
Question49:-Biochemical oxygen demand (BOD) of waste water is a measure of
A:-total concentration of organic matter
-quantity of oxygen required for biochemical oxidation of decomposible matter
C:-concentration of biodegradable organic matter
D:-quantity of carbon in organic matter
Correct Answer:- Option-B
Question50:-The suitable method of forecasting population for an young and rapidly growing city is
A:-geometrical increase method
B:-arithmetical increase method
C:-incremental increase method
D:-graphical method
Correct Answer:- Option-A
Question51:-The imaginary line passing through points of equal elevation is called
A:-Level line
B:-Reduced level
C:-Mean sea level
D:-Contour
Correct Answer:- Option-D
Question52:-The measurement of depth below the water surface is called
A:-Traversing
B:-Sounding
C:-Remote sensing
D:-Contouring
Correct Answer:- Option-B

Question53:-Selection of satellites in view, acquiring GPS signals and recovering navigational data is done in GPS by the

A:-Control segment
B:-Space segment
C:-User segment

D:-None of the above
Correct Answer:- Option-C

Question54:-This is awarded for work done or service rendered when price thereof is not fixed by contract

A:-Quantum merits
B:-Contingencies
C:-Deviations

D:-Force majeure

Correct Answer:- Option-A