- (A) Are used for carrying sewage and drainage from houses
- (B) Are manufactured from clays and shale
- (C) After casting are dried and burnt at temperature 150°C, 700°C and 1200°C
- (D) All the above
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- (A) Parabolic
- (B) Circular
- (C) Rectangular
- (D) New egged
- (A) Standard egg shaped
- (B) Circular shaped
- (C) Horse shoe shaped
- (D) Parabolic shaped
- (A) 10 cm
- (B) 15 cm
- (C) 20 cm
- (D) 25 cm
- (A) The materials separated by screens, is called screenings
- (B) The screenings are disposed off either by burning or by burial or by dumping
- (C) The process of burning the screenings, is known as compositing
- (D) All the above
- (A) One pipe
- (B) Two pipes
- (C) Three pipes
- (D) Four pipes
- (A) Less than 0.01 mm
- (B) Less than 0.05 mm
- (C) Less than 0.1 mm
- (D) Greater than 0.1 mm
- (A) The bottom is silted
- (B) The bottom is scoured
- (C) Both silting and scouring occur at the bottom
- (D) Neither silting nor scouring occurs at the bottom
- (A) 2 to 3 mm
- (B) 3 to 5 mm
- (C) 5 to 8 mm
- (D) 8 to 10 mm
- (A) 10 litres
- (B) 15 litres
- (C) 20 litres
- (D) 25 litres
