please answer all parts with explanations

24. In Fig. 5, the operating point is a) (A) B(B) c) (C) d) (D) 25. A clothes dryer device with 40C air flows. The 10cm diameter galvanized iron vent on the clothes dryer is not to contain more than 6m of pipe and four elbows ( 90 regular threaded). The air inlet pressure Pl is 0.5cm of water. Determine PJ. a) Pl=29.05Pa b) Pl=39.05Pa Pf=49.05Pa d) PI=59.05Pa 26. For the same quistion (25), the Bernoulli equation can be derived as follows: . p1/=fl/D+Kl b) 2gp1/V2=fl/D+K1 c) (p1/)(V2/2g)=Kl d) (p1/)(V2/2g)=fl/DKl 27. For the same quistion (25), the Bernoulli equation is 87=(6.0+60f)V2,Re=6020V, and /D=0.0015. The first guiss of the friction factor is f=0.02. Determine the calculated Reynolds number for this first guiss. a) 19926 D) 20926 c) 21926 d) 22926 A mercury (Hg) manometer is used to measure the pressure inside the water tank as shown in Fig. 3. If the air pressure over the water surface is 50kPa (gage). Determine the pressure at point 3. 9) PJ=50kN/m2 d) P3=75kN/m2 c) P,=100kN/m2 d) P3=125kN/m2 11. For the large tank of Fig. 4, the gage pressure at point (1) is a) Pl=13.9kPa b) Pi=14.9kPa of PF=15.9kPa d) Pl=16.9kPa 12. For the same tank of Fig. 4 , the gage pressure at point (2) is a) PI=16.8kPa b) Pj=17.8kPa c) Pl=18.8kPa (f) Pl=22.8kPa