महाराष्ट्र अभियंता सेवा (स्थापत्य) मुख्य परीक्षा २०१७ पेपर २

The amount of fresh air required to maintain ventilation for workers inside the tunnel should be

The method used to control the amount of dust, where use of water while drilling may be impracticable or undesirable is

In compressed air tunnelling, the amount of air required per minute per m2 of face area is

The correct pair showing percentage of total solids in cow-dung and night soil is
Cow-dung Night Soil

Which of the following pairs is not correctly matched ?

Consider the following statements pertaining to the sources of supply:

a. Groundwater has low organic content and high dissolved oxygen. 

b .Lake water at the bottom has silt and bacteria.

c. River water in floods has low dissolved oxygen and colour.

Which of the above statements is/are correct?

As per I.S. 10500, acceptable limit for chlorides in mg/l in drinking water is

Activated sludge process is an

“If B.O.D. of waste water sample after 5 days incubation at 20°C is 100 mg/l, deoxygenation rate constant at 20°C is 0-1 per day, ultimate B.O.D. will be 

Which one of the following is the purpose of providing surge tank in pipelines carrying water ?

In the activated sludge process, sludge volume index is used to decide

An appurtenance used to connect high level branch sewer to low level branch sewer IS

The maximum tolerances in overall length of a 20 m and 30 m metric chain should be respectively

Closed contour lines with one or more higher value contours inside it represent 

The lines joining points of equal dip are called

The magnetic bearing of the sun at noon is 178°. The magnetic declination at the place is

If the lower clamp is tightened and the upper clamp is loosened, the theodolite may be turned

Total station is used for 

Sensitivity of a level tube increases with 

a. An increase in radius of curvature of the bubble tube.

b. Smoothness of finish of the inner surface of the bubble tube. 

Answer options:

If the intercept on a vertical staff is observed as 0.75 m from a tacheometer with the line of sight horizontal, fitted with anallatic lens, the horizontal distance between the tacheometer and the staff station is