Areservoir has 200 million m^3 capacity. from the watershed, 1000 ppm sediment load comes to the reservoir. void ratio of the soil is 0.3. annual intow of water to the reservoir is 10 times more than the capacity. use a trap emriciency of 80 %. find the years needed to fill the reservoir completely. density of water and saturated sediment are 1000 and 2700 kg/m^3 respectively.

Ariver flows from north to south at 8 km/h. a boat is to cross this river from west to east at a speed of 20 km/h (speed of the boat with respect to the earth/ground). at what angle (in degrees) must the boat be pointed upstream such that it will proceed directly across the river (hint: find the speed of the boat with respect to water/river)? a 288 b. 21.8 c. 326 d. 30.2

Vibration monitoring this technique uses the noise or vibration created by mechanical equipment and in seme cases by plant systems to detemine their actual condtion. a)- true b)- false

Describe one experiment in which the glass transition temperature and melting temperature of a totally amorphous thermoplastic material can be determined. show the relevant experimental results in a diagram which should be properly annotated with the two temperatures clearly marked. what is likely to happen to the curve in the diagram if the amorphous polymer is replaced by a thermosetting type?