7. A reheat cycle with two stages of reheating is executed, with steam expanding initially from 90 bar and 530C. The two reheater pressures are 10 bar and 0.6 bar, and the steam leaves each reheater...

12. A turbine with one extraction for regenerative feedwa- ter heating, receives steam with an enthalpy of 3373 kJ/kg and discharges it with an exhaust enthalpy of 2326 kJ/kg. The ideal regenerative...

15. A reheat-regenerative engine receives steam at 207 bar and 593C, expanding it to 38.6 bar, 343C. At this point, the steam passes through a reheater and reenters the turbine at 34.5 bar, 593C,...

Task.3 Your head of department required to deliver a brief report (no more one page) to analyse and described practical solutions that are offered by manufacturers and development centres to overcome...

A wet t-shirt hung on a hanger has a total surface area of about 0.6 m2 . It loses water as follows: time (min) 0 5 33 45 weight (g) 661 640 580 553 Calculate the flux of water vapor away from the...

Three masses are attached to a uniform meter stick, as shown in Figure below. The mass of the meter stick is 150.0 g and the masses to the left of the fulcrum are m1-50.0g and m2-75.0g. Find the mass...

A p-doped wafer (boron concentration of 5 E17/cm^3) that is 200 m thick completely and homogenously absorbs a beam of photons, generating 2E19 excess free electrons (n) per cubic centimetre and per...

Determine coordinates of centroid of the shaded area shown in figure. 25 mm 25 mm X- 50 mm 50 mm 50 mm 30mm

Locate the centroid of the semi-elliptical area shown in figure. (Ans: 0.424 ft) y = x dy = 1 (-x, y), 1 ft y = y -2 ft -2 ft 2 ft 2 ft /2

The annular region between two concentric rigid spheres of radii a and ha (with > 1) is filled with Newtonian fluid of viscosity u and density p. The outer sphere is held stationary whereas the inner...

In a stress test for elite athletes a physical system is used to measure the performance of the individual, Indicate which of these signals are analog signals: Heart rate Type: Numeric; Range:...

A reversible power cycle receives energy Q h from a reservoir at temperature T h and rejects Q c to a reservoir at temperature T c . The work developed by the power cycle is used to drive a...

Air is to be cooled in the evaporator section of a refrigerator by passing it over a bank of 0.8-cm-outer- diameter and 0.40 m-long tubes inside which the refrigerant is evaporating at T =- 20 C. Air...

Q1/A short post constructed from a hollow circular tube of aluminum supports a compressive load of 26 kips shown in fig.1. the inner and outer diameters of the tube are di = 4.0 in and d2 = 4.5 in ....

Q4/ A solid steel shaft ABCDE show in fig.4 having diameter d = 30 mm turns freely in bearings at point A and E. The shaft is driven by a gear at C, which applies a torque T2= 450 N.m in the...

|Q1. A thin sheet of iron is in contact with a carburizing gas on one side and a decarburizing gas on the other at temperature of 1000C. (a) Sketch the resultant carbon concentration profile when a...

The force F A is 13 kN. The shaft material is AISI 1018 cold-drawn steel. The gears seat against the shoulders and have hubs with setscrews to lock them in place. The effective centers of the gears...

(In the following problems where motion as a projectile in air is involved, neglect air resistance unless otherwise stated and use g = 9.81 m/s2 or g = 32.2 ft /sec2.) A boy tosses a ball onto the...

Locate all the instantaneous centres for the crossed four bar mechanism as shown in Fig. 6.28. The dimensions of various links are : CD = 65 mm; CA = 60 mm ; DB = 80 mm ; and AB = 55 mm. Find the...

The Austin folder contains two shapefiles showing dog off-leash areas as points and polygons. Both have coordinate problems. Describe the problem for each; then fix them and create a map showing both...

Problem IV (10%) Determine the flow rate in each line and the pressure at the nodes ABD for the system show in the figure. The Hazen-William coefficient is 100, and the pressure at the node A is 100...

The uniform 30-kg bar OB is secured to the accelerating frame in the 30 position from the horizontal by the hinge at O and roller at A. If the horizontal acceleration of the frame is a = 20...

Four masses A, B, C and D revolve at equal radii and are equally spaced along a shaft. The mass B is 7 kg and the radii of C and D make angles of 90 and 240 respectively with the radius of B. Find...

10,000 lb/hr of 570API gasoline is cooled from 150F to 130F by heating 420API kerosene from 70F to 100F. Pressure drop of 10psi is allowed with a minimum dirt factor of 0.004. How many 2.5 by 1.25...

An air conditioning unit is to supply air at 20C, 1 bar, and relative humidity 50% to a lecture theatre. Ambient conditions are 30C, 1 bar, and relative humidity 75%. Calculate; (i) the dew point...

Given the following sketches, generate an Excel spreadsheet: 1) Count the total degrees of freedom in the sketch. 2) Count the constraints 3) Provide the number of dimensions that are necessary to...

In a reverted gear train, as shown in Fig. 13.32, two shafts A and B are in the same straight line and are geared together through an intermediate parallel shaft C. The gears connecting the shafts A...

One cubic food of material weighing 67 lbf is allowed to sink in water as shown. A circular wooden rod 10 ft long and 3 in in cross section is attached to the weight and also to the wall. If the rod...

Feedco produces two types of cattle feed, both consisting totally of wheat and alfalfa. Feed 1 must contain at least 80% wheat, and feed 2 must contain at least 60% alfalfa. Feed 1 sells fro $1.50lb,...

Design the condenser of a steam power plant that has a thermal efficiency of 40 percent and generates 10 MW of net electric power. Steam enters the condenser as saturated vapor at 10 kPa, and it is...

The drum has a mass of 25 kg. The coefficients of static and kinetic friction between the drum and brake bar are s = 0.4 and k = 0.3, respectively. Neglect the weight and thickness of the brake. If M...

A bar of length 1.2 m extends through 3 mm under the action of axial pull of 2.5 kN. Compute strain in material if diameter of bar is 20 mm. Find stress in bar.

A rigid horizontal bar AB hinged at A is supported by a 1.2 m long steel rod and a 2.4 m long bronze rod both rigidly fixed at the upper ends as shown in Fig. below. A load of 48 kN is applied at a...

1.a Propose a 2D dynamic system, with a total number of DoF of 3, which contains nz rigid bodies n2 point-masses n3 linear springs n4 linear dampers ng torsional spring ng torsional dampers n,...

The rigid bar ABC is supported by a pin at B and two vertical steel rods. Initially the bar is horizontal and the rods are stress-free. Determine the stress in each rod if the temperature of the rod...

Assign link frames to the following mechanism and find the modiefied DH (Denavit-Hartenberg) parameters: FIGURE 3.37: Three-link RRP manipulator (Exercise 3.17

A fluid of constant density and viscos- ity is contained in a very long pipe of length L and radius R. Initially the fluid is at rest. At time t = 0, a pressure gradient (Po-P)/L is imposed on the...

The spring on the rope assembly are originally unstretched when =0. Determine the tension in each rope when F = 90 lb . Neglect the size of the pulleys at B and D . -2 ft- 2 ft D A k 30 lb/ft k = 30...

a) A venturimeter is in an installation of 100 mm diameter pipe carrying water. The maximum range available in water-mercury differential pressure gauge is 50 cm of mercury deflection. Find the...

2 kg mass of ammonia initially at P1=7 bars and T1=180 centigrade undergo a constant pressure process to a final state where quality is 85% determine the work for the process kilojoule/?

End 4 of the 5-kg rod AB moves to the left at a constant speed v = 1.5 m/s. a) Using the software of your choice (Excel, MatLab, Mathematica, etc.) calculate and plot the normal reactions at ends A...

Block A rests on top of block B as shown in (Figure 1). The table is frictionless but there is friction (a horizontal force) between blocks A and B. Block B has mass 6.00 kg and block A has mass 2.00...

Consider a linear potentiometer as shown in Figure 12.1. The potentiometer consists of 0.1-mm copper wire (re = 1:7 10 -8 V-m) wrapped around a core to form a total resistance of 1 kV. The sliding...

Determine the angular velocity and the angular acceleration of the plate CD of the stone-crushing mechanism at the instant AB is horizontal. At this instant . Driving link AB is turning with a...

A 6-cm-diameter shaft rotates at 3000 rpm in a 20-cm- long bearing with a uniform clearance of 0.2 mm. At steady operating conditions, both the bearing and the shaft in the vicinity of the oil gap...

Due to blockage of fluid flow, the convection heat transfer coefficient for the finned and prime surfaces of a fin array in general decreases as the number of fins increases. Consider the fin array...

A home is in a hot locale with an annual cooling load of 39.6 million BTU (that is, it has to remove that much heat from the home.) The ACs distribution system efficiency is 95%. If its cooling...

Q1. The structure shown consists of a S18 x 70 rolled-steel beam AB and two short members welded together and to the beam. (a) Draw the shear and bending-moment diagrams for the beam and the given...

TTI rents a warehouse. Back in November 2019, TTI experienced flood damage in the warehouse caused by a water heater leak. According to the terms of TTI's lease, TTI is responsible to ensure the...

Water is pumped from a supply reservoir to a ductile-iron water-transmission line, as shown in Figure 2.26. The high point of the transmission line is at point A, 1 km downstream of the supply...

A thin-walled cylindrical pressure vessel is made of composite materials, and is loaded by internal pressure, p, and an external torque, T, as shown in Figure 1. Diameter of the vessel is D = 100 cm....

What is the net employment income? Canadian income tax Unless "received", amounts listed are paid by the salesperson Salary received 29,300 Commissions received 14,269 Airfares 3,100 Lodging 3,444...

A jet of water impinges on a series of curved vanes at an angle of 30 to the direction of motion of the vanes while entering and leaves the vanes horizontally. The head under which the jet issues...

It is important to be able to recognize galvanic corrosion. In the following list of cases, explain whether galvanic corrosion is a probable cause of the corrosion. a. Steel rivets in aluminum drain...

A coal with an ultimate gravimetric analysis of 80% C, 5% H2, 5.4 % O2, 0.63 % N2, 0.89% S and 8.08% Ash is burned in an industrial boiler. Calculate the adiabatic flame temperature with a...

Compute the magnitude of the resultant force (kN) on the indicated area and the location of the center of pressure (m). Show the resultant force on the area and clearly dimension its location. From...

An electric go kart with the following specification was tested on a straight track Kart specifications: Vehicle Mass = 60 kg Rider Mass= 70 kg Cd*A= 0.25 m (the Cd*A value is with the rider sitting...

A dam with triangular cross section holds back a body of water. The dam has height h. The dam is made of concrete, which has specific gravity 3.1. What is the maximum angle, 0, for which the dam will...

Use MATLAB. Ground vibrations from a crane operation, a forging press, and an air compressor are trans- mitted to a nearby milling machine and are found to be detrimental to achieving specified...

Methane is compressed in two-stage, double-acting compressor which is electrically driven at 165 rpm. The low pressure cylinder (30.5 x 35.5 cm) receives 6.86 cu m per minute of air at 96.53 kPa,...

Tata Motors and Tesla are two of a large number of firms that have taken steps to flatten their hierarchical structures. Tata, an India-based automaker, cut half of the levels in the organization,...

Subdivision A was estimated to have 10,500 households in 2018. In the same year, each household in Subdivision B consumes 550 gallons of water per day on average. Hypothetically speaking, water is to...

The purchasing manager Justin Case, who is Paige Turner's cousin, has a very relaxed approach to purchasing ingredients. Justin Case places orders every Friday for the same amount of ingredients. He...

3. Consider a nuclear reactor operating with a constant power of 0.5MWt. From t=0, the reactivity was changed as given in the following figure : p(reactivity) 0.1$ 0 10 50 Assume that the delayed...

As shown in Fig. 2, a "very long" tube A (inner tube made of aluminium) has been thermally shrink-fitted into another "very long" tube B (outer tube made of mild steel). The final dimensions of the...

Explain how people professionals create value for people, organisations and wider stakeholders. Divide this answer into three sections: Explain how HR creates value/ makes a difference for: 1. people...

A two-phase liquid-vapor mixture of H2O with an initial quality of 25% is contained in a piston-cylinder assembly. The mass of the piston is 40 kg, and its diameter is 10 cm. The atmospheric pressure...

An engineer has a DAQ with a 14-bit A/D converter and a voltage range of 0 to 10 V. They are measuring vibrations around 20 Hz, so they sample at f= 100 Hz to avoid aliasing. They add a DC offset of...

A column fixed at both ends has a minimum radius of gyration r = 29.4 mm, cross-sectional area 3,230 mm, and length 1.94 m. It is made of a material whose compression stress-strain diagram may be...

A steel pinion having a diameter of about 254 mm meshes with a steel gear which turns at 1/3 the angular speed of the pinion. The torque of 3,222 kgcm (18,000 lb-in). The angle of cut of the teeth is...

The steam cycle of a marine nuclear propulsion plant may be modeled as an ideal Rankine cycle. a . Using the information provided below determine the enthalpy of the working substance in each state....

(c) A Michelson interferometer is used to measure the displacement of a linearly moving object. The target mirror is mounted on the moving object. The laser source used in this system is laser diode...

1. (40 points) For the open-loop plant dynamics from (2.3.2), determine the closed-loop transfer function from the reference input R(s) to the shaft angle output (s) when using a Proportional...

Consider the pendulum shown in Figure 1, where & denotes the length of the rod and m denotes the mass of the bob. We assume the rod is rigid and has zero mass. The pendulum is actuated by a DC motor...

Calculate the support reactions for this simply supported beam, a component of the bridge. Key Values A 15 kN B 20 KN C 3 kN/m X 1.5 m y 2.5 m R1 X A 1m B Y UDL = C R2 1m

Layla Bright has run a bicycle shop for several years in rented shop premises. She sells new and reconditioned second-hand bikes and runs a repair service, with the help of a part-time assistant. The...

a) How would you construct the static roll center for the front of a car from the lateral ICs of both left front (LF) and right front (RF) wheels and their position on the car? b) How is the roll...

For the analysis and procedure (Step 5 and 6) this needs to be calculated using figure 5. Results for Step 2 (procedure and analysis): Results for Step 3/4: Question 1: Deflection of a beam due to...