A machine part as shown in following figure consists of three disks linked by light weight struts. Use ma = 0.37 kg, mB = 0.51 kg, mc = 0.2 kg, a = 0.59 m, b = 0.82 m and c = 1.0101980004 m.
Q: Steam enters the turbine of a Rankine cycle at 16 MPa, 560°C. The condenser pressure is 8 kPa. The t...
A:
Q: 10.13 Assuming that the compression process takes place through infinitesimal stages, calculate the ...
A:
Q: A square-threaded power screw has a mean diameter, dm = 1.75 in and a pitch, p = 0.875 in. The coeff...
A:
Q: rad). Determine the wire diameter and the number of active
A: Given: D=18 mm Fos=2 Mb=250 Nmm k=3 Nmm/rad σyt=0.6σut To determine: Diameter of the wire no of acti...
Q: Write down the stress components expression at point A (ox, oy, oz, t xy, t yz, T xz) Show the momen...
A: BENDING COUPLE A couple is said to be bending couple when plane of couple is perpendicular to plane ...
Q: A 12-mm thick steel tire has a width of 110 mm and internal diameter of 800 mm. It is heated and tru...
A:
Q: Shown below are three cylindrical gates which restrain water in a 2-D channel. Which gate experience...
A: Horizontal hydrostatic force = YAx' Where x' = c. G of body up to free surface Y = weigh...
Q: A power plant operates on a regenerative vapor power cycle with one open feedwater heater. Steam ent...
A:
Q: A medium size power station is used to produce 30 MW net power for a refinery. The station uses stea...
A:
Q: 1. An aluminum rod is rigidly attached between a steel rod and a bronze as shown. Axial loads are ap...
A:
Q: 1. Where necessary, assume air as an ideal gas and consider R = 287 J/(kg.K), Cp = 1005 J/(kg.K), Cv...
A: Given data mass flow rate = m˙ = 50 kg/sPressure at entry = Pi = 500 kPaTemperature at entry = Ti = ...
Q: 2. Using the method of sections, determine the forces in members CE, DE, and DF in the truss shown b...
A:
Q: For a certain stage of an axial flow turbine, the nozzle makes an angle of 28' with the wheel tangen...
A: Given data as per question Axial velocity =500 ft/s Degree of reaction =50% blade velocity(u)=550 ft...
Q: A double-width centrifugal blower supplies flow to a system whose resistance is dominated by the pre...
A: given; pressure rise (P2-P1)=1KPasectional area(A)=1m2volume flow rate(Q)=?
Q: A 55-mm-diameter solid circular shaft as shown in the figure is made up of an aluminum material. The...
A:
Q: 2. A cyclic machine is used to transfer heat from a higher to a lower- temperature reservoir, as sho...
A: Given Data
Q: (i) List the name of the four processes in a generic Carnot cycle and state what type of energy tran...
A: Carnot cycle : A Carnot cycle is a theoretical perfect thermodynamic cycle suggested by Sadi Carnot,...
Q: ascending the 30° incline with an acceleration of 5 m/s?. At what angle must the post be inclined in...
A: TO FIND ANGLE
Q: Using the relationship that flow rate Q is the product of velocity V and area A (Q=VA), show qualita...
A: Axial flow : In this machines the flow is in the same or in parallel direction as the axis of the ma...
Q: Determine the shear and moment equations throughout the beam. Using these equations, sketch the shea...
A: Draw shear force and bending moment diagram
Q: A construction crew lifts approximately 400 Ib. of material several times during a day from a flatbe...
A: Disclaimer: Since you have posted multiple questions we will solve the first question for you. If yo...
Q: 2. An eccentric Cam, too mmin diameter otates with an eccentricity of lommas hown in the figurę. The...
A: Given: Pmax=350 N; Pmin=100 Ne=10mmspring index C=6
Q: Q16) A block of mass m, on a rough, horizontal surface is connected to a ball of mass m2 by a lightw...
A:
Q: Through load analysis, force and moment diagram are obtained, as shown below. Diagram below shows th...
A: The force that occurs between mating gears is normal to the surfaces in contact. The axial force Fa,...
Q: Q1- A particle starts to moves from origin at the curved Path y= ( 3 cos3 (x2) + yx) m With initial ...
A: Given: →y=3cos3x2+yx acceleration→a=2t2+5 so velocity at time t→v=∫0tadt=∫0t2t2+5dt=4t33+5t+c where ...
Q: A flat rectangular plate 1 m wide and 2 m iong is immersed in water. The shorter side parallel to wa...
A:
Q: A 300 Ib force is applied to the cable as shown and supported by the frame composed of members ABC, ...
A: Drawing the free body diagram of the frame as shown below, The horizontal force in the frame is, HA...
Q: Three kg of steam has an initial enthalpy of 7200kJ at0.145 Mpa. Isentropic compression gives a fina...
A: Given data as per question Enthalpy=7200 kjMass of steam =3 kgspecific enthalpy=72003=2400 kjkgPress...
Q: A single acting reciprocating pump has a bore of 15 cm an a stroke of 30 cm. The suction pipe has a ...
A: Given that, Bore of pump, db=15 cm,Stoke of pump, L=30 cm,Diameter of suction pipe, ds=10 cm,Speed o...
Q: . A solid metal cube, of length 7.00 cm on a side, is placed in a forge. This metal cube is then hea...
A:
Q: A refrigerant 22 vapor compression system includes a liquid-to-suction heat exchanger in the system....
A:
Q: 7. If block A of the pulley system is moving downward at 6 ft/s while block C is moving down at 18 f...
A:
Q: The rotational speed of an impulse turbine is 3000 rpm and the mean diameter of the rotor is 90 cm....
A:
Q: uppose two infinitely long flat plates, separated by 3 in. distance and 0.5 in. thickness, conducts ...
A: Givend=3in.t=0.5inV=5m/sμ=1Pa-sS.G=0.89
Q: Determine the overall efficiency of a pump which delivers 2.5 cubic meters per minute of water at ro...
A: GIVEN DATA- PRESSURE P=341KPa Q=2.5m3/min T=190Nm N=989 rpm WE HAVE TO FIND OVERALL EFFICIENCY
Q: 1. The weight of a car is distributed on its wheels as shown below. If the weight of the truck is 27...
A: Find the distance (d) from B Weight= 27 kN
Q: Situation - The uniform heavy ring molding shown is supported by six 8-mm-diameter steel cables spac...
A:
Q: Solve the following exercise in two different ways: 1) Using the principle of Work and Energy. 2) Us...
A: Given data as per question Mass of car =300 lb Force applied =110 lb Initial speed = 9 ft/s Calculat...
Q: Is it possible for a heat engine's thermal efficiency engine to reach 100% if all reversibilities ar...
A:
Q: Sketch a T-s diagram for the above cycle indicating the location of the four components required.
A:
Q: ow that the index 'n' of polytropic expansion in a turbine of infinitesim stage efficiency np is giv...
A:
Q: The ball at A is kicked such that 0A = 57 •. It strikes the ground at B having coordinates x = 15 ft...
A: Find the velocity of ball at kicked and strike the ground
Q: A steel tube with a thermal conductivity of 45 W/m.K carries a fluid at 200°C, with a convection hea...
A: Note: As per policy, we can solve the first three parts. Please resubmit the remaining parts.Thermal...
Q: Which selection chart would you use to short-list suitable materials for each of the following? Spri...
A: 1. Spring board for pool diving : fracture toughness vs specific strength. Spring board is acts lik...
Q: Three kg of steam at 121°C and 10% moisture undergoes a constant volume process until the pressure b...
A:
Q: 2. A sheet of copper is stretched biaxially in the xy-plane. If the strains in the sheet are 0.40 x ...
A:
Q: A single acting reciprocating pump has a bore of 15 cm and a stroke of 30 cm. The suction pipe has a...
A: Given that, Boree, db=15 cm,Stroke length, L=30 cm,Diameter of suction pipe, ds=10 cm,Speed of pump,...
Q: Two gondolas on a ski lift are locked in the postion show in the figure while repairs are being made...
A: Given data as per question WC=650 lbDAB=12 ftDBC=70 ftDCD=20ftΔB=3.9 ftΔC=7.1 ftL=100 ftDAB+DBC+DCD=...
Q: A medium size power station is used to produce 30 MW net power for a refinery. The station uses stea...
A:
Q: 1. Is it possible to operate a heat engine with only a high-temperature heat reservoir??
A: Since we only solve one question at once, we will answer the first one. Please resubmit the question...
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 3 images
- A cylindrical brick chimney of height H weighs w = 825 lb/ft of height (see figure). The inner and outer diameters are d1= 3 ft and d2= 4 ft, respectively. The wind pressure against the side of the chimney is p = 10 lb/ft2 of projected area. Determine the maximum height H if there is to be no tension in the brickwork.A sign of weight W is supported at its base by four bolls anchored in a concrete footing. Wind pressure P acts normal to the surface of the sign; the resultant of the uniform wind pressure is force fat the center of pressure (C.P). The wind force is assumed to create equal shear forces F/4 in the y direction at each boll (see figure parts a and c). The overturning effect of the wind force also causes an uplift force R at bolts A and C and a downward force (— R) al bolts B and D (see figure part b). The resulting effects of the wind and the associated ultimate stresses for each stress condition are normal stress in each boll (h — 60 ksi); shear through the base plate (th = 17 ksi); horizontal shear and bearing on each bolt ( tfur = 25 ksi and cr^ = 75 ksi): and bearing on the bottom washer at B (or D) (abor = 50 ksi)..17 A mountain-bike rider going uphill applies torque T = Fd(F = l5lb, d = 4 in.) to the end of the handlebars ABCD by pulling on the handlebar extenders DE. Consider the right half of the handlebar assembly only (assume the bars are fixed at the fork at A). Segments AB and CD are prismatic with lengths L, = 2 in.andL3 = 8.5 in, and with outer diameters and thicknesses d01 = 1.25 in. 101 = 0.125 in. and d03 = O.87in.,i03 = 0.ll5in, respectively as shown. Segment BC’ of length L, = 1.2 in. however. is tapered, and outer diameter and thickness vary linearly between dimensions at B and C. Consider torsion effects only. Assume G = 4000 ksi is constant. Derive an integral expression for the angle of twist of half of the handlebar tube when it is subjected to torque T = Fd acting at the end. Evaluate ‘b1-, for the given numerical1ues.
- A stepped shaft ABC consisting of two solid, circular segments is subjected to uniformly distributed torque t1acting aver segment 1 and concentrated torque t2applied at C, as shown in the figure. Segment 1 of the shaft has a diameter of d1= 57 mm and length of L1= 0.75 m; segment 2 has a diameter d2— 44 mm and length L2= 0.5 m. Torque intensity /,"= 3100 N . m/m and T2= 1100 N. m. (a) Find reaction torque TAat support A. (b) Find the internal torque T(x) at two locations: .x = L1/2 and at .x = L1+ L2/2. Show these internal torques on properly drawn free-body diagrams.A steel post (E=30×106) having thickness t = 1/8 in. and height L = 72 in. support a stop sign (see figure), where s = 12.5 in. The height of the post L is measured from the base to the centroid of the sign. The stop sign is subjected to wind pressure p = 20 lb/ft2 normal to its surface. Assume that the post is fixed at its base. What is the resultant load on the sign? (Sec Appendix E, Case 25, for properties of an octagon, n =8.) What is the maximum bending stress in the post? Repeat part (b) if the circular cut-outs arc eliminated over the height of the post.The inclined ladder AB supports a house painter (85 kg) at C and the weight iq = 40 K/m} of the ladder itself. Each ladder rail (t5= 4 mm) is supported by a shoe (ts= 5 mm) that is attached to the ladder rail by a bolt of diameter d = 8 mm
- A heavy flywheel rotating at n revolutions per minute is rigidly attached to the end of a shaft of diameter d (see figure). If the bearing at A suddenly freezes, what will be the maximum angle of twist <£of the shaft? What is the corresponding maximum shear stress in the shaft? (Let L = length of the shaft, G = shear modulus of elasticity, and / = mass moment of inertia of the flywheel about the axis of the shaft. Also, disregard friction in the bearings at Sand Cand disregard the mass of the shaft.) Hint: Equate the kinetic energy of the rotating flywheel to the strain energy of the shaft..15 A hitch-mounted bicycle rack is designed to carry up to four 30-lb bikes mounted on and strapped to two arms Gil (sec bike loads in the figure part a) The rack is attached to the vehicle at A and is assumed to be like a cant silkier beam A BCDGII (figure part b) The light of fixed segment AB is U = 10 lb. centered 9 in. from A (see figure part b) and the rest of the rack highs W2 = 40 lb. centered 19 in. from A. Segment ABCDG is a steel tube o(2 X 2 in. with a thickness I = 118 in. Segment BCDGII pivots about a bolt at B with a diameter d1 = 0.25 in. to allow access to the rear of the vehicle without removing the hitch rack. When in use, the rack is secured in an upright posit ion by a pin C(diameter o( pin d, = 5116 in.) (see phoo and figure part C). The of returning effect of the bikes on the rack is resisted by a force couple F h at BC. (a) Find the support reactions at A for the fully loaded rack. (b) Find forces in the bolt at B and the pin at C. (c) Find average shear stresses in both the bolt at Band the pin at C. (d) Find average bearing stresses o, in the bolt at B and the pin at C.A bar ABC revolves in a horizontal plane about a vertical axis at the midpoint C (see figure). The bar, which has a length 2L and crass-sectional area A, revolves at constant angular speed at. Each half of the bar (AC and BC) has a weight W, and supports a weight W2at its end. Derive the following formula for the elongation of one-half of the bar (that is. the elongation of either AC ar BC). =L223gEA(w1+3w2) in which E is t he modulus of elasticity of the material of the bar and g is the acceleration of gravity.
- A non prism elk- bar ABC made up of segments AB(length £,, cross-sectional area .Inland BC (length i-,, cross-sectional area A2) is fixed at end A and free al end C (see figure). The modulus of elasticity of the bar is E. A small gap of d intension s exists between the end of the bar and an elastic spring of length Lj and spring constant k3. If bar ABC only (not tin? spring} is subjected to temperature increase A3", determine the following. (a) Write an expression for reaction forces R^ and RDif the elongation of /I BC exceeds gap length s. (b) Find expressions for the displacements of points B and C if the elongation of ABC exceeds gap length s.A horizontal bracket ABC consists of two perpendicular arms AB of a length 0.75 m and BC of a length 0,5 m. The bracket has a solid, circular cross section with a diameter equal to 65 mm. The bracket is inserted in a friction less sleeve at A (which is slightly larger in diameter), so it is free to rotate about the r0 axis at A and is supported by a pin at C Moments are applied at point C M{=1.5 kN -m in the x direction and A/3 = L0 kN-m acts in the — z direction. Considering only the moments Mxand M2, calculate the maximum tensile stress t, the maximum compressive stress crc* and the maximum in-plane shear stress Tmax at point />, which is located at support A on the side of the bracket at mid-height-7 Repeat Problem 2.3-5, but n include the weight of the bar. See Table I-I in Appendix I for the weight density of steel.