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Mechanical Engineering Questions and Answers October 29, 2019

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A long pipe with 1 0 cm outer diameter is buried 6 0 cm below the surface in soil having a thermal conductivity of 0 . 4 W m - K . Calculate the heat loss per meter length if the pipe surface temperature is 1 0 0 C and the soil temperature is is at a temperature of 2 0 C . The thermal conductivity of soil is k = 0 . 4 W m - K .
A long pipe with 1 0 cm outer diameter is buried

Determine the smallest horizontal force P required to pull out wedge A . The crate has a weight of 3 6 0 lb and the coefficient of static friction at all contacting surfaces is s = 0 . 6 . Neglect the weight of the wedge.
Determine the smallest horizontal force P

A gymnast is hanging from a pair of rings as pictured below. In this problem you will calculate the maximum moment around one of the gymnast's shoulders that can be generated by a set of three muscles. Gymnast body mass: m = 7 5 k g Gravity: g = 9 . 8 1 m s 2 Mass of the arm = 5 % of body mass Arm length: L A = 6 5 c m Distance from shoulder to
A gymnast is hanging from a pair of rings as

V . Consider a 2 - DOF robotic manipulator, the robot needs to move from an initial configuration 3 0 and 6 0 degrees to a final configuration of 1 2 0 and 3 0 degrees over a period of 5 seconds. Implement linear interpolation to generate a trajectory for the robot to move smoothly from the initial to the final configuration. Calculate the joint
V . Consider a 2 - DOF robotic manipulator, the

In the table below, determine the missing properties for water: I specifically need help with the second row because the steam tables don't go to such a high temperature.
In the table below, determine the missing

Following figures show a die casted aluminum flange coupling and detailed dimensions. All dimensions are in mm . Ignore the screw holes for the calculation. a . Assume the part is to be die - casted in a 4 - cavity die ( 2 x 2 ) from aluminum alloy. Part volume is 2 3 2 9 9 . 5 6 mm 3 . Assume that the average wall thickness is 7 mm and maximum
Following figures show a die casted aluminum

flat bottom boat moves through the water at 2 0 mph ( 2 9 . 3 feet per second ) . The surface of the hull can be treated as a flat plate with length equal to 2 0 feet, and width equal to 8 feet. Given: Density of water = 1 . 9 4 slugs / ft ^ 3 Kinematic viscosity of water = 1 . 6 6 E - 5 ft ^ 2 / s Assume the boundary layer of water against the

Question 2 The C - section beam is subjected to a moment of M = 1 0 0 N m horizontally. Solve the problems below: ( a ) Determine the location of the centroid O . ( b ) Determine the principal moments of inertia. ( c ) Determine the maximum compressive and tensile stresses and show their corresponding locations on the section. ( d ) Determine the
Question 2 The C - section beam is subjected to a

Describe the operation of a device which uses hydraulic pressure. Define: ( i ) force ratio; ( ii ) movement ratio. It is required to lift a skip whose load total is 1 8 kN . Two simple lifting jacks are available, both having an effort piston diameter of 1 2 mm and a load piston diameter of 8 0 mm . The load is to be distributed equally between
Describe the operation of a device which uses

Determine the maximum deflection of the spring assuming A does not strike B again before this point. ( Round the final answer to three decimal places. ) The maximum deflection of the spring is in .
Determine the maximum deflection of the spring

A rigid steel plate is supported by four posts of high strength concrete ( see below table for details ) . Before the load, P , is applied, the middle posts are shorter by a gap, s , than the outer posts. A . Determine the allowable compressive deflection of the outer columns. B . Make the gap, s , equal to 6 0 % of your part A answer. Determine
A rigid steel plate is supported by four posts of

3 9 9 . Describe the role of digital technologies in process digitalization.

how to setup the equilibrium equations
how to setup the equilibrium equations

6 . 1 . 4 3 . [ Level 3 ] Find ? b a r ( B C D ) and v C for the given system: ? b a r ( D E ) = - 7 kra d s , r B A = - 0 . 6 j f t , r D E = ( - i + j ) f t , r C B = 0 . 8 ift, and r D B = ( 0 . 8 i - 1 . 2 j ) f t .
6 . 1 . 4 3 . [ Level 3 ] Find ? b a r ( B C D )

c . A 2 0 0 mm diameter pipe splits into 2 branch pipes, one 6 0 mm diameter and the other 8 0 mm diameter as shown in figure 1 . The system carries oil of density 9 3 0 k g m - 3 in a steady flow. If the velocity of the oil is 3 m s in the largest pipe and 4 m s in the smallest pipe, determine: i . The volumetric flow rate in the 2 0 0 mm pipe [
c . A 2 0 0 mm diameter pipe splits into 2 branch

Locate the centroid of the plane area shown. Given: n = 3 . 2 0 0 . The centroid of the plane area is x = , m m . ? b a r ( Y ) = , m m .
Locate the centroid of the plane area shown.

For the cantilever beam shown, L is 3 . 4 m , a is 2 m , and P is 1 0 kN . Determine the vertical force reaction at the fixed end, in kN .
For the cantilever beam shown, L is 3 . 4 m , a

Assume that each pendulum can be represented by a mass M at the end of a massless bar of length L . Also assume that the displacement is small and linear approximations can be used for sin theta and cos theta The spring located in the middle of the bars is unstretched when theta _ { 1 } = theta _ { 2 } The input force is represented by f ( t ) ,

A lifting device at a construction site consists of three equally long rods ( 1 ) , ( 2 ) , and ( 3 ) , smoothly connected at their endpoints in joints A , B , C . Two frictionless pulleys are placed at joints B and C , and a rope runs over the pulleys, subjected to forces F 1 and F 2 . A sketch of the lifting device is shown in Figure 3 .
A lifting device at a construction site consists

Be sure to watch units and explain where the numbers came from ( e . g . , from steam tables, etc. ) .
Be sure to watch units and explain where the

Consider a single crystal of a metal oriented such that a tensile stress is applied along the [ 0 0 1 ] direction. The single crystal has a length of 3 0 mm along the [ 0 0 1 ] direction and a cross - sectional diameter of 3 mm . If slip occurs on the ( 1 1 1 ) plane and in the [ 1 6 0 1 ] direction when the applied tensile load reaches 5 0 0 N ,

4 ) Steam power plant operating on the simple Rankine cycle. The steam enters the turbine at 5 MPa and \ ( 5 0 0 ^ { \ circ } \ mathrm { C } \ ) and is condensed in the condenser at a pressure of 7 5 kPa . a ) List the processes in Rankine Cycle. b ) Calculate the P ' s , v ' s , T ' s for all points in the cycle. c ) Calculate the qin and qout. d
4 ) Steam power plant operating on the simple

A cereal dough is being extruded in a single - screw extruder with the following dimensions, screw length 2 5 cm , channel height 0 . 5 cm , and channel width 3 cm . The apparent viscosity of the dough is 1 7 0 0 Pa s . The density is 1 2 0 0 kg / m 3 . The wall velocity is estimated to be 0 . 3 m / s . If a mass flow rate of 1 0 8 kg / hr is

Can you answer with very detailed steps of how to solve this question so i can understand how to solve.
Can you answer with very detailed steps of how to

Question 2 1 . Solve the following problem for an element in plane stress subjected to stresses that are shown in figure Q 2 . Determine the stresses acting on an element oriented at an angle \ ( = \ ) \ ( 3 0 ^ { \ circ } \ ) counterclockwise from the \ ( x \ ) axis, where the angle is positive when counterclockwise. Verify your answers using
Question 2 1 . Solve the following problem for an

2 . A shaft carries a torque ( twist ) of 1 , 5 0 0 N m , and the shaft has a diameter of 1 5 mm . a . Look up the formula and find the polar moment of inertia J for this shaft. b . What is the maximum torsional shear stress due to this load? Is the maximum shear stress on the surface or at the center of the shaft? c . This torque is applied over
2 . A shaft carries a torque ( twist ) of 1 , 5 0

A single - cylinder air compressor of mass 1 0 0 kg is mounted on rubber mounts, as illustrated below. The stiffness and damping constants of the rubber mounts are \ ( 1 0 ^ { 6 } \ mathrm { ~N } / \ mathrm { m } \ ) and \ ( 2 0 0 0 \ mathrm { ~N } \ cdot \ mathrm { ~s } / \ mathrm { m } \ ) , respectively. If the unbalance of the compressor is
A single - cylinder air compressor of mass 1 0 0

Consider ( Figure 1 ) . Assume ( Mc ) 1 = ( Mc ) 1 = 5 0 0 lb ftlb ft , ( Mc ) 2 = ( Mc ) 2 = 3 5 0 lb ftlb ft , and ( Mc ) 3 = ( Mc ) 3 = 3 3 0 lb ftlb ft . Determine the resultant couple moment acting on the pipe assembly. Enter the xx , yy and zz components of the resultant couple moment separated by commas. Express your answers in pound - feet
Consider ( Figure 1 ) . Assume ( Mc ) 1 = ( Mc )

Pipework with a radius of 2 0 mm and a wall thickness of 4 mm made of 2 1 4 C r Mo steel contains a hot fluid under pressure. The pressure is 1 0 MPa at a temperature of 6 0 0 C . The table lists the creep constants for this steel. Calculate the creep rate of the pipe wall, assuming steady - state power - law creep. There is concern that the
Pipework with a radius of 2 0 mm and a wall

Required information Two cables tied together at C are loaded as shown. Given: Q = 1 6 5 l b . Determine the range of values of P for which both cables remain taut.
Required information Two cables tied together at

The gage pressure of the air in the tank shown is measured to be 7 5 kPa . Determine the differential height h of the mercury column.
The gage pressure of the air in the tank shown is

6 . 2 6 . Consider the viscoelastically damped system of Fig. P 6 . 2 6 . The system differs from the viscously damped system by the addition of the spring k _ ( 1 ) , which introduces one more coordinate, x _ ( 1 ) . to the system. The equations of motion for the system in inertial coordi - nates x and x _ ( 1 ) are mx ^ ( ) = - kx - c ( ( x ^ (
6 . 2 6 . Consider the viscoelastically damped

1 3 - 1 1 . Figure P 1 3 . 1 1 shows a mechanism that raises packages in a transfer mechanism. If a 1 0 0 - N package sits on the horizontal link while the mechanism is stationary, determine the torque required from the motor. The weights of the links are negligible. FIGURE P 1 3 . 1 1 Problem 1 1 .
1 3 - 1 1 . Figure P 1 3 . 1 1 shows a mechanism

Consider two versions of a jet engine. The first is a standard turbojet engine run with a turbine inlet stagnation temperature of 1 2 0 0 K . The second is identical, except that its turbine is cooled by bleeding air from the compressor; in this way the allowable turbine inlet stagnation temperature may be raised to 1 6 0 0 K . To make an estimate
Consider two versions of a jet engine. The first

Q . 1 . Consider the vertically hanging rod with linearly varying cross - sectional area in the form of A ( x ) = A 0 ( 1 + x L ) . The rod is of length L and is acted by a point load P at x = L in addition to its self - weight. Find the vertical deflection of the rod by various methods of weighted residuals ( i . e . , least squares, collocation,
Q . 1 . Consider the vertically hanging rod with

For the beam illustrated, there is a roller support at point " A " with a reaction force of Ay = 9 . 3 kN , and a pin joint at point " B " with a reaction force of By = 6 9 . 7 kN . ( a ) Construct the full shear force and bending moment diagrams. ( b ) Considering x = 0 at the left end of the beam, derive the equations for the shear force and
For the beam illustrated, there is a roller

The springs shown all have an unstretched length of 3 . 9 m . Part A Determine the potential energy in the spring shown in ( Figure 1 ) Part B Determine the potential energy in the spring shown in ( Figure 2 ) . Part C Determine the potential energy in the spring shown in ( Figure 3 ) .
The springs shown all have an unstretched length

( a ) Determine the reactions at A and E if P = 5 6 0 N . The reactions are positive if to the right or up , negative if to the left or down. ( b ) What is the maximum value which P may have for static equilibrium? Neglect the weight of the structure compared with the applied loads. Answers: ( a ) If P = 5 6 0 N , A x = 5 A y = N E x = N ( b ) The
( a ) Determine the reactions at A and E if P = 5

Determine the required length of cord AC so that the 1 0 2 . 2 N lamp remains in equilibrium. Kab = 3 0 0 N m . The undeformed length of the spring is . 4 m Answer:
Determine the required length of cord AC so that

What is the second moment of inertia at the principal axis and centroid axis of the following figure?
What is the second moment of inertia at the

Q . 1 0 ) Find fourth force ( F 4 ) completely so as to give the resultant of the system of force as shown in figure. [ M - 1 8 ] [ Ans . : F 4 = 1 7 6 . 6 0 N , = 5 1 . 3 0 ]
Q . 1 0 ) Find fourth force ( F 4 ) completely so

27. Repita el problema 25 excepto que utilice una combinacin de carga de una carga de compresin axial de 75 000 lb y una torsin de 20 000 lb pulg. 25. El cilindro de hierro fundido que se muestra en la figura P5-25 soporta solo una carga de compresin axial de 75 000 lb (el par T = 0). Calcule el factor de diseo si est hecho de hierro fundido gris,

HW 8 - Sec 6 . 1 - 6 . 4 Problem 6 . 3 2 of 1 0 Review Introduction Set P 1 P 1 = 3 0 0 lblb , P 2 P 2 = 7 5 0 lblb . ( Figure 1 ) Figure 1 of 1 Part A Part complete Determine the force in member ABAB of the truss. Express your answer in pounds to three significant figures. Enter negative value in the case of compression and positive value in the

Determine the frequencies for periodic times of ( a ) 4 ms and ( b ) 4 \ mu s .

Please find Min, Max, Q 1 , Q 2 , Q 3 for all 4 Plant. Facts finding - Which plant has better / good / poor quality and why?
Please find Min, Max, Q 1 , Q 2 , Q 3 for all 4

6 . ) Assume that you take measurements from the same system ( e . g . vibration source ) five times at different sampling rates ( SR ) such that SR \ # 1
6 . ) Assume that you take measurements from the

i need correct answrrs 3 2 . Describe the principle of operation of a gas turbine.

The transfer of entropy is usually associated with... ( a ) The transfer of mechanical work such as shaft work ( b ) The transfer of electrical work. ( c ) The transfer of boundary work. ( d ) The transfer of mass. ( e ) All above

Problem 5 ) ( Vdv ) Bearing selection: For the pump shown below, find appropriate bearings. One bearing is located at the front of the pump body ( 5 0 mm from the gear ) and the other bearing is located 5 0 mm further into the pump body. Note that the thrust load should be carried by only one of these bearings.
Problem 5 ) ( Vdv ) Bearing selection: For the

In a boat race, boat A is leading boat B by 5 0 m and both boats are traveling at a constant speed of 1 8 6 km / h . At t = 0 t = 0 , the boats accelerate at constant rates. Know that when B passes A , t = 8 st = 8 s and vA = 2 2 5 km / hvA = 2 2 5 km / h .

Question 2 The stress state of the body of a power screw is defined by a stress cube, as: If x = 3 3 MPa, determine the maximum principal stress ( in MPa ) . Use Excel spreadsheet posted on Canvas and give correct answer to one decimal place.
Question 2 The stress state of the body of a

A Venturi tube, as illustrated below, is used to measure the flow rate of a fluid. The diameters of sections 1 and 2 are 1 5 cm and 1 0 cm , respectively. Find the flow rate in the pipe if P 1 P 2 = 2 0 kPaP _ 1 - P _ 2 = 2 0 \ , \ text { kPa } P 1 P 2 = 2 0 kPa. The fluid is oil with a density d = 0 . 9 d = 0 . 9 d = 0 . 9 .

The amusement park ride consists of a 2 0 0 - kg car andpassenger that are traveling at 3 m / s along a circular path having a radius of 2 + 1 m . If at t = 0 , the cable OA is pulled intoward O at 0 . 5 m / s , determine the speed of the car whent = 4 s . Also, determine the work done to pull in the cable.

A beam is subjected to equal bending moments of Mz = 4 5 kip ft , as shown in Figure P 8 . 5 a . The cross sectional dimensions ( Figure P 8 . 5 b ) are b 1 = 7 . 5 in . , d 1 = 1 . 5 in . , b 2 = 0 . 7 5 in . , d 2 = 6 . 0 in . , b 3 = 3 . 0 in . , and d 3 = 2 . 0 in . Determine FIGURE P 8 . 5 a FIGURE P 8 . 5 b ( a ) the centroid location, the

Water is the working fluid in an ideal Rankine cycle. The condenser pressure is 4 kPa, and saturated vapor enters the turbine at 6 MPa. a ) Determine the heat transfer rates, in kJ per kg of steam flowing, for the working fluid passing through the boiler and condenser. b ) Calculate the thermal efficiency

Considering the rod shown in the figure The contact sirface at B is smooth, whereas the coefficient of static friction between the rid and the wall at A is s = . 2 0 Determine the minimum force P to prevent the 3 3 - kg rod AB from sliding
Considering the rod shown in the figure The

Question 2 a ) A thin film of oil, thickness z and viscosity , flows down an inclined plate. Show that the velocity profile is given by u = g 2 ( z 2 - y 2 ) s i n Where u is the local velocity at a depth y below the free surface, is the plate inclination to the horizontal and is the fluid density. b ) For the case in ( a ) above calculate the
Question 2 a ) A thin film of oil, thickness z

Consider a cantilever beam of length l subjected to a uniformly distributed load of w per unit length acting vertically downwards. If the beam has the cross - section shown in figure, determine the deflection of the free end of the beam. Assume t a .
Consider a cantilever beam of length l subjected

Sketch full auxiliary views of the inclined surfaces for the following objects on the engineering graphing paper.
Sketch full auxiliary views of the inclined

9 - A tube bank consists of 3 0 0 tubes at a distance of 6 cm between the centerlines of any two adjacent tubes. Air approaches the tube bank in the normal direction at \ ( 2 0 ^ { \ circ } \ mathrm { C } \ ) and 1 atm with a mean velocity of \ ( 6 \ mathrm { ~m } / \ mathrm { s } \ ) . There are 2 0 rows in the flow direction with 1 5 tubes in
9 - A tube bank consists of 3 0 0 tubes at a

A centrifugal pump runs at 6 0 0 r . p . m and discharge water at 8 0 0 0 liters / minute against a head of 8 . 5 m . The water enters the impeller without whirl. The inner and outer diameters ( Constinued ) ( 7 ) are 0 . 2 5 m and 0 . 5 m . The vane angle at exit is 4 5 and the flow area which is constant from inlet to outlet of impeller is 0 . 0
A centrifugal pump runs at 6 0 0 r . p . m and

Q 2 A 1 m diameter cylindrical mass, \ ( M \ ) , is connected to a 2 m wide rectangular gate as shown in figure 2 . The gate is required to open when the water level, \ ( h \ ) , drops below 2 . 5 m . Figure 2 : The mass will open the gate when the depth of the water drops below 2 . 5 m . a . Draw a free body diagram of the forces acting on the
Q 2 A 1 m diameter cylindrical mass, \ ( M \ ) ,

A hollow cylindrical pipe consists of three layers with different thermal conductivities and thicknesses. The inner radius is 0 . 0 2 m , and the outer radius is 0 . 0 6 m . The following data is provided for each layer: Layer 1 : r 1 = 0 . 0 2 m , r 2 = 0 . 0 3 m , k 1 = 1 0 W m * K Layer 2 : r 2 = 0 . 0 3 m , r 3 = 0 . 0 4 m , k 2 = 5 W m * K
A hollow cylindrical pipe consists of three

Subproblem 5 : Translation to a given distance Let \ xi be an infinite - pitch unit - magnitude twist; p , qinR ^ ( 3 ) two points; and \ delta a real number > 0 . Find \ theta such that | | q - e ^ ( widehat ( \ xi ) \ theta ) p | | = \ delta Use this subproblem to solve for the extension of the prismatic joint in the SCARA robot in Example 3 . 6
Subproblem 5 : Translation to a given distance

Question - 2 ( 4 0 points ) : A solid rod of length \ ( L \ ) and radius \ ( R \ ) moves downward with a uniform speed \ ( U \ ) into a liquid metal bath at temperature \ ( T _ { 0 } \ ) . The temperature of the environment is \ ( T _ { \ infty } \ ) , and the convection heat transfer coefficient between the rod and the environment is h which is
Question - 2 ( 4 0 points ) : A solid rod of

Calculat: 1 . Minimum presswe on gat 2 . Maximu pressue in gate 3 . The resultant force \ ( \ left ( F _ { R } \ right ) \ ) 4 . The distance from the base of the plate where \ ( F _ { R } \ ) applies 5 . The force ( F ) required for the hinge to Jurt begin to open.
Calculat: 1 . Minimum presswe on gat 2 . Maximu

The uniform 2 0 0 - lb beam is initially at rest when the forces are applied to the cables. Set F A = 9 0 l b and F B = 1 6 0 lb . ( Figure 1 )
The uniform 2 0 0 - lb beam is initially at rest

Problem 4 . 1 3 Consider thermally developing flow in an initially hydrodynamically fully developed flow in a circular tube with 4 cm diameter. a . For \ ( R e = 5 0 0 \ ) and 1 0 0 0 , estimate the thermal entrance length for air, water, glycerin, and mercury, all at 3 0 0 K . Assuming constant wall surface temperature, calculate the heat
Problem 4 . 1 3 Consider thermally developing

The smooth pin P has a mass of 8 0 g . It is attached to an elastic cord extending from O The smooth pin P has a mass of 8 0 g . It is attached to an elastic cord extending from O to P and, due to the slotted arm guide, moves along the horizontal circular path r = ( 0 . 8 s i n ) m as shown in ( Figure 1 ) . The cord has a stiffness k = 4 0 N m
The smooth pin P has a mass of 8 0 g . It is

Machine design - Case study Gear trains are usually used to reduce speed between an input and output shafts. The gear train presented bellow consists of four gears. Gears 1 and 2 are helical while gears 3 and 4 are spur. As shown, all gears are keyed with shafts. Gear 1 is connected to shaft a , gears 2 and 3 are mounted on shaft b , and gear 4 is
Machine design - Case study Gear trains are

Water at 2 0 C is to be delivered from source, S , to locations A 1 and A 2 as illustrated below. The corresponding demands for water ( i . e . , mass flow rates ) at these locations are given in the table below. Also, included in the table are the distances and elevations of these locations from the source, S . The water delivery operation is
Water at 2 0 C is to be delivered from source, S

PROBLEM 8 . 2 There are numerous occasions in which a fairly uniform free - stream flow encounters a long circular cylinder aligned normal to the flow. Examples include air flowing around a car antenna, the wind blowing against a flag pole or telephone pole, wind hitting electrical wires, and ocean currents impinging on the submerged round beams
PROBLEM 8 . 2 There are numerous occasions in

1 4 - 2 3 A spur gearset has 1 7 teeth on the pinion and 5 1 teeth on the gear. The pressure angle is 2 0 and the overload factor K o = 1 . The diametral pitch is 6 teeth / in and the face width is 2 in . The pinion speed is 1 1 2 0 r e v m i n and its cycle life is to be 1 0 8 revolutions at a reliability R = 0 . 9 9 . The quality number is 5 .
1 4 - 2 3 A spur gearset has 1 7 teeth on the

The coefficient of static friction between the axe and the wood in ( Figure 1 ) is s = 0 . 2 4 . Figure 1 of 1 Part A Determine the largest angle of the blade which will cause the axe to be self - locking. Neglect the weight of the axe. Express your answer in degrees to three significant figures.
The coefficient of static friction between the

Question 5 For the mechanism shown in Figure, ( a ) Show revolute ( R ) , prismatic ( P ) cylindrical slot ( CS ) ( b ) Determine the number of lower pairs and the number of higher pairs; ( c ) Determine the degree of freedom ( DOF ) of the mechanism ( d ) Determine the mobility of the mechanism predicted by the Kutzbach criterion. ( e ) Does this
Question 5 For the mechanism shown in Figure, ( a

Required information Problem 1 5 . 1 3 2 - Relative velocity and acceleration The instant shown, bar A B has a constant angular velocity of 5 . 0 0 0 r a d s clockwise. Problem 1 5 . 1 3 2 . b - The angular acceleration of bar DE Determine the angular acceleration of bar D E . ( Round the final answer to three decimal places. ) The angular
Required information Problem 1 5 . 1 3 2 -

A sample was completed and the data is below. The print calls out 3 . 2 7 + - 0 . 0 4 for the dimension measured in the data. Assuming an x - bar of 3 . 3 6 0 and a standard deviation of 0 . 0 2 5 0 , they are not these values, calculate C p k . Report your answer to three decimal places.
A sample was completed and the data is below. The

Question 2 3 3 . 4 A large bypass ratio turbofan engine ( JT 9 D engine from Pratt and Whitney, 1 9 7 4 ) is described by its fan and core engine gas flow properties. ( h ) What is the Carnot efficiency carmic corresponding to this engine ( in percent % ) ( 3 decimal ) \ table [ [ State , 2 , 1 3 , 2 . 5 , 1 9 , 3 , 4 , 5 , 9 ] , [ Pt ( psia ) , 1
Question 2 3 3 . 4 A large bypass ratio turbofan

[ Chapter 3 - Orthograpnic Exercise 3 . 7 - 2 : Missing lines 2 Name: Date: Fill in the missing lines in the top, front, and right side views. Hint: The top view has one missing visible line. The front view has four missing visible lines and four missing center lines. The right side view has two missing hidden lines and one missing center line.
[ Chapter 3 - Orthograpnic Exercise 3 . 7 - 2 :

Q 2 / compute the mean square values of the slopes ( d t d x ) 2 for the airfoils shown in figure below and indicate which airfoil has a minimum drag for a zero value of angle.
Q 2 / compute the mean square values of the

Problem 1 . 2 1 Refer to the planar linkage shown. If the value of is provided ( indicating a motor is placed there to drive that link ) , can all kinematic parameters ( displacement , velocity, acceleration ) of each link be determined uniquely? Explain your answer.
Problem 1 . 2 1 Refer to the planar linkage

( 6 ) A window is temporarily held open in the \ ( 5 0 ^ { \ circ } \ ) position shown by a wooden prop CD . If \ ( \ mathrm { a } = 0 . 8 \ mathrm { ~m } \ ) and \ ( \ mathrm { b } = 1 . 2 \ mathrm { ~m } \ ) and the mass of the window is 5 0 kg with mass center at its geometric center, determine the compressive force \ ( F _ { C D } \ ) in the
( 6 ) A window is temporarily held open in the \

A 7 0 1 - kg horse A lifts a 5 1 - k g hay bale B as shown. At the instant when r = 8 m and = 6 0 , the velocity and acceleration of the horse are 2 m s to the right and 0 . 5 m s 2 to the left, respectively. Neglect the mass of the pulley. Determine at that instant the tension in the cable. The tension in the cable is N .
A 7 0 1 - kg horse A lifts a 5 1 - k g hay bale B

9 . Ability to schedule work, either materials or people.

As shown in the figure below, moist air at T 1 = 3 6 C , 1 bar , and 3 5 % relative humidity enters a heat exchanger operating at steady state with a volumetric flow rate of 1 0 m 3 m i n and is cooled at constant pressure to 2 2 C . Ignoring kinetic and potential energy effects, determine: ( a ) the dew point temperature at the inlet, in C . ( b
As shown in the figure below, moist air at T 1 =

For the crank angle of \ ( 3 0 ^ { \ circ } \ ) , perform position analysis using graphical and analytical methods to determine the angular displacement of link 3 and the position of the center of the slider from \ ( \ mathrm { O } _ { 2 } \ ) . The dimensions are in inches.
For the crank angle of \ ( 3 0 ^ { \ circ } \ ) ,

# 9 4 4 . Calculating Time to Cool Object Given Power Input A household refrigerator that has a power input of 4 4 6 W and a COP of 1 . 5 is to cool 5 watermelons, 1 0 kg each, to 1 0 C . The watermelons are initially at 2 8 C . Model the watermelons as water, whose specific heat is 4 . 2 kJ / ( kg * C ) . How long will it take to cool the

Equilibrium 4 - 7 0 . The two beams shown in Figure P 4 - 7 0 are bolted together with spacers between them at B and C . Determine which bolt is in tension and what tensile load it is carrying. The answer in my text book is 1 1 1 lb
Equilibrium 4 - 7 0 . The two beams shown in

During a brake test, the rear - engine car is stopped from an initial speed of 1 0 0 km / h at a distance of 5 0 m . If it is known that all four wheels contribute equally to the braking force, select the appropriate FBD:

Identify the types of sketches illustrated below and sketch orthographic views as indicated for each
Identify the types of sketches illustrated below

School of Aerospace and Mechanical Engineering Q 3 CLO 2 , PLO 3 , Domain Learning Level C 2 The Gulfstream IV aircraft is powered by two Rolls - Royce Tay 6 1 1 - 8 turbofans, each one rated at a maximum thrust at sea level of 1 3 , 8 5 0 l b . The aircraft total weight is 7 3 , 0 0 0 l b with a wing reference area of 9 5 0 f t 2 . The C D o 0 =
School of Aerospace and Mechanical Engineering Q

QUESTION 3 Calculate the total moment about point A of both Force F = 2 0 l b and the couple shown: M A = M A ( F ) + M A ( M ) = lb ft . Calculate your answer to 1 digit place. Put negative sign if it is negative
QUESTION 3 Calculate the total moment about point

The assembly consists of two A 9 9 2 steel bolts A B and E F and an 6 0 6 1 - T 6 aluminum rod C D . When the temperature is 3 0 C , the gap between the rod and rigid member A E is 0 . 1 mm . Assume B F is also rigid. ( Figure 1 ) Determine the normal stress developed in the bolts if the temperature rises to 1 6 0 C . Express your answer to three
The assembly consists of two A 9 9 2 steel bolts

List the six key material generated in the key derivation of SSL and the role of each of those key material.

1 2 . 1 0 A centrifugal radial water pump has the dimensions shown in Fig. P 1 2 . 1 0 . The volume rate of flow is 0 . 2 5 f t 3 s , and the absolute inlet velocity is directed radially outward. The angular velocity of the impeller is 9 6 0 rpm . The exit velocity as seen from a coordinate system attached to the impeller can be assumed to be
1 2 . 1 0 A centrifugal radial water pump has the

which one is the critical riveted joint? A = 3 0 degree for the critical one what is d ? calculate d 1 and d 2
which one is the critical riveted joint? A = 3 0

1 . ) Sekilde g sterilen sistemin, serbestlik derecesini hesaplay n z . Sistemin konum denklemlerini yazzmiz.
1 . ) Sekilde g sterilen sistemin, serbestlik

consider a rigid body pivoted at point O that is a distance d from the center

A circular rod with a diameter of 1 0 . 0 mm has a groove cut with a diameter of 8 . 0 mm . A full radius of 1 . 2 0 mm is produced at the bottom of the groove. Compute the maximum stress in the rod when an axial tensile force of 5 5 0 0 N is applied.

A two stage, single acting air compressor compresses air to a delivery pressure of 2 0 bar. The compression is carried out with an ideal intermediate pressure and complete intercooling. The air enters the L . P cylinder at 0 . 9 8 bar and 3 2 \ deg C . The size of the L . P cylinder is 4 0 0 mm diameter and 5 0 0 mm stroke. The clearance volume in

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