4. Oil of specific gravity 0.83 flows in the pipe shown in Fig. 3. If the flow is inviscid, what isQ? (The specific weight of water is 62.4 lb/ft'). Hint: Use points 1 and 2 on Fig. 3 to set up the Bernoulli's equation, and the manometer to find the difference in pressure between points1 and 2.

Fig: 1

Fig: 2