Chapter 12, Problem 2RQE

2. A series of gears are mounted on a 40mm diameter steel shaft. Take G = 75 GPa. (i) Draw the torque load diagram. (ii) Determine the angle of twist of gear B relative to gear A. (iii) Determine the maximum shear stress and it's location along the shaft. 600 N-m 900 N-m 200 mm 200 mm 200 mm 500 Nm 300 N·m 200 mm 500 N-m

1. The figure below shows a circular shaft with three sections. The length of each section is 50mm. (E 500 MPa). = (i) Draw the axial load diagram of the circular shaft. (ii) Determine the average normal stress at points A, B and C. (iii) Determine the maximum deformation and it's location along the shaft. 10 mm 5 mm 5 mm B 300 N A 900 N 800 N C 200 N

02: For the gravity concrete dam shown in the figure, (the vertical stresses at toe and heel ((Pmax & Pmin) are 199 and 52 ton/m respectively. following data are available:- -Unit weight of concrete (ycone)-24 ton/m³ -Neglect Wave pressure, silt pressure, ice force and earth quake force. #-0.65 Find factor of safety against sliding and overturning (F.Sslid & F.Sover) AS 115 m 8 m 120 m Solve with sketch on paper

please solve and neglect the distance between the two angles for simplecalculations

Determine the required solids retention time (SRT) of a completely mixed activated sludge aeration tank for a conventional activated sludge system treating a design flow rate of 34,560 m³/d, where the effluent standards are 30.0 mg/L for BODs and 30.0 mg/L for total suspended solids (TSS). Assume that the BOD5 of the effluent TSS is 70% of the TSS concentration. Assume the BODs concentration leaving the primary clarifier is 128 mg/L that the MLVSS concentration (X₂) is 2,500 mg/L. Assume the following values for the growth constants: Ks 100 mg/L BODS ⚫ Hm - 2.5 d 1 kd = 0.050 d 1 Y = 0.50 mg VSS/mg BODs removed Express your answer in days and round to the nearest 0.1.

For the gravity concrete dam shown in the figure, the following data are available: Unit weight of concrete (7)-2.4 ton/m Neglect Wave pressure, silt pressure, ice force and earth quake force) -0.65, (7)-1 ton/m' Solve on paper and sketch Find factor of safety against sliding and overturning (F.Sa & F.S), If heel and toe stresses (Pain & P) are 57.17ton/m2 and 84.53 ton/m² respectively. Solve in table on paper w.s.l 83m 10m 8m 80m

1. Find moments of inertia around horizontal and vertical centroid axes for given 6 cross sections. 30cm 4) "T 0cm 1116 5) 20cm 5cm 6)

1. Find moments of inertia around horizontal and vertical centroid axes for given 6 cross sections. 1) 30cm 5cm 10cm 20cm 2) 3)

An anchored sheet-pile bulkhead is shown in the figure below. Let L₁ = 2 m. L₂ =6 m. l₁ = 1 m = 17 kN/m². sat -18.86 kN/m², '=32°, and c=27 kN/m². Use the free earth support method. Anchor Sand = 0 Water table L Sand Ysat c' = 0 Clay = 0 1. Determine the theoretical depth of embedment, D. (Enter your answer to three significant figures.) D= m 2. Calculate the anchor force per unit length of the sheet-pile wall. (Enter your answer to three significant figures.) F= kN/m