Problem 1 the flow hydrograph at a channel section is given by
time (min)flow (m3/s)
00.0
3012.5
6022.1
9015.4
12013.6
15012.4
18011.7
21010.8
2409.9
2708.4
3008.1
3307.5
3604.2
3900.0

use the muskingum method to estimate flow rate (m3/s) at time 390 min at 1000 m downstream from the channel section. assume x=0.3 and k=35 min.

When at a point two solid phase changes to one solid phase on cooling then it is known as a) eutectoid point b) eutectic point c) peritectic point d) peritectoid point

Apump is used to circulate hot water in a home heating system. water enters the well-insulated pump operating at steady state at a rate of 0.42 gal/min. the inlet pressure and temperature are 14.7 lbf/in.2, and 180°f, respectively; at the exit the pressure is 60 lbf/in.2 the pump requires 1/15 hp of power input. water can be modeled as an incompressible substance with constant density of 60.58 lb/ft3 and constant specific heat of 1 btu/lb or. neglecting kinetic and potential energy effects, determine the temperature change, in °r, as the water flows through the pump.

Air is compressed isentropically from an initial state of 300 k and 101 kpa to a final temperature of 1000 k. determine the final pressure using the following approaches: (a) approximate analysis (using properties at the average temperature) (b) exact analysis