I Organizing for safety
i Scheduling for safety
IV, Controlling for safety
Aci Ill and IV are correct
Bell land IV are correct
Crt, Hand IV are correct
De, ۱0 ‏ال۱ ۳۹ھ‎ ھ٥۵‎ correct
Correct Answer: Option-C
Question26:-Determine the amount of cement per Unit volume of concrete from
ஜடியா value
B:-The maximum size of aggregate
The amount of mixing water
Di-The maximum size of aggregate and the amount of mixing water

Correct Answer: Option-D

‘Question29:-A 12.5 mL of treated wastewater requires 187.5 mL of odour free distilled water to reduce the odour to a level that is just perceptible. What is the Threshold Odour
Number (TON) for the wastewater sample ?

6ھ
چدھ
می
0:29
‎Correct Answer:- ೦೧000,‏

‘Question30:-If L, B, H are the length, breadth (width) and depth of a rectangular sedimentation tank having total discharge Q, then the settling velocity of a particle (sediment) is given
by

ക
1
‏ارون‎
‎D-None of these
Correct Answer:- Option ®
Question31:-Ifa smoke chimney were to emit air pollutants into an unstable atmosphere we expect the plume to be
‘Acconing
B:-fumigation
fanning
D-looping
Correct Answer:- Option-D
Question32:-Air Quality Index (AQ!) category is poor (in India), if the AQ! value is
101200
B:-201-300
6.301.400
401-500
Correct Answer:- Option ®
Question33:-The permissible limit of total hardness (as Caco, in mg/L) in drinking water as per IS 10500:2012 is
4-200
B:-250
‏ممم‎
‎D600

Correct Answer: Option-D

Question34:-The work done by the pump to lift 0.1 m'js of water to a height of 10 m is (Neglect frictional loss and other losses and assume the value of unit weight of water as 10 kN
im)

۸۷۷
00 8:2
الم مد

D:-100 ۷