Questions
Describe your plan or countermeasures, regarding to developing a Cost Estimating Relationship, as an engineer in...
Describe your plan or countermeasures, regarding to developing a Cost Estimating Relationship, as an engineer in controlling the effects/impacts given by the following items from the perspective of Engineering Economics
- Direct labor hours
-. Machine hours
-. Number of units
-. Number of production runs
-. Number of orders
In: Mechanical Engineering
Determine the horizontal and vertical components of reaction at the pin C.
Determine the horizontal and vertical components of reaction at the pin C. Also, what are the reactions at supports A and F?
In: Mechanical Engineering
Write the Bit configuration of PSW( The Program Status Word ).
Write the Bit configuration of PSW( The Program Status Word ).
In: Mechanical Engineering
please select anypart of the structure in practical life and do the FEM and nodal analysis...
please select anypart of the structure in practical life and do the FEM and nodal analysis on this and find the forces on the nodes, displacements, and reactions.
The subject is Finite Element Method
In: Mechanical Engineering
Write about importance, environmental aspects, The current status and future projections for hydropower?
Write about importance, environmental aspects, The current status and future projections for hydropower?
In: Mechanical Engineering
23. Lis any three defects associated with fusion welding, and describe them briefly. 24. Draw a...
23. Lis any three defects associated with fusion welding, and
describe them briefly.
24. Draw a sketch of weld section, and label three zones; namely:
base metal, weld metal and heat affected zone.
25. Define power density and include its units, and describe how
power density affects size of heat affected zone?
26. Sketch Fe-Fe3C equilibrium phase diagram, and identify the
following:
a. Alpha region
b. Gamma region
c. Delta region
d. Eutectic point
e. Eutectoid point
f. Lower critical temperature line, A1
27. Identify the methods that can be employed to minimize the
distortion in the welded workpieces.
28. Identify one high power density and one low power density
welding process.
29. Sketch a fillet weld, and identify weld size, throat size and
convexity or concavity?
30. Two AISI1020 Steel plates 6 mm thick each are to be welded
through a T-Joint double fillet weld using
SMAW process. Assume that each leg of the fillet weld is equal to 4
mm, and the weld has a flat face.
Perform the tasks:
a. How much metal in grams will be required to make the welds?
Density of steel weld metal is 7.85
g/cm3.
b. How many electrodes will be required to make the weld if
diameter of the electrode is 4 mm, and
length is 350 mm? Assume that electrode metal deposition efficiency
is 65%.
In: Mechanical Engineering
Flow enters a heated duct at v1 = 2000 m/s, T1 = 300 K, and q...
Flow enters a heated duct at v1 = 2000 m/s, T1 = 300 K, and q = 5 x 105 J/kg. Find Mach1 and Mach2 for He, Ne, Ar, Kr, and Xe
In: Mechanical Engineering
Q1/ Multi Choices (25 Degrees) 1-one of the Advantages of Maintenance in power plant . A....
| Q1/ Multi Choices (25 Degrees) 1-one of the Advantages of Maintenance in power plant . A. Greater safety for workers. B. To increase efficiency C. To increase repair cost D. To increase power 2- Used to conduct hot gas (flame) from one Combustion chamber to the next A. Flow Sleeves B. Support Clamp C. Flame Detector D. Cross Fire Tubes 3- Used to provide seal between transition piece and first stage nozzle A. liner B. Floating Seals C. Flame Detector D. Cross Fire Tubes 4- Provide frequency signal ( flame intensity) to control system A. Cross Fire Tubes B. Support Clamp C. Flame Detector D. Flow Sleeves 5- During combustion inspection can see many problem A. Foreign Objects B. Abnormal C. Hot Spots D. All Above 6- Borescope inspection can check for A. Bleed valves B. all the internal parts C. Air Filter D. Lube Oil System 7- The boilers contain A. Superheater B. Reheater C. Economiser D. A |
In: Mechanical Engineering
C. Clearly indicate the plate number and indexing movements to be made to divide the periphery...
C. Clearly indicate the plate number and indexing movements to be made to divide the periphery of a work piece into 29 divisions using compound Indexing? The following indexing plates are available. Plate No 1: 15,16,17,18,19,20.: Plate No 1: 21,23,27,29,31,33. Plate No 1: 37,39,41,43,45,49
In: Mechanical Engineering
A refrigeration system contains an adiabatic compressor with Refrigerant-134a as working fluid. Inlet conditions (state 1)...
A refrigeration system contains an adiabatic compressor with Refrigerant-134a as working fluid. Inlet conditions (state 1) are 140 kPa and -100C and the exit state is 1.6 MPa and 800C (state 2). The changes in KE and PE are negligible. Determine (a) actual exit specific enthalpy in kJ/kg, (b) exit specific isentropic entropy in kJ/lg.K and (c) efficiency of the compressor in %.
In: Mechanical Engineering
A car traveling at 45 m/s can brake to a stop within 10m. Assume that the...
A car traveling at 45 m/s can brake to a stop within 10m. Assume that the braking force is effective for stop and constant with speed. If the car speeds up to 90 m/s, what is its stopping distance? Provide your explanation in words using principle of work and energy.
In: Mechanical Engineering
A thin-walled tube with a diameter of 6 mm and length of 20 m is used...
A thin-walled tube with a diameter of 6 mm and length of 20 m is
used to carry exhaust gas from a smoke stack to the laboratory in a
nearby building for analysis. The gas enters the tube at 200°C and
with a mass flow rate of 0.001 kg/s. Autumn winds at a temperature
of 15°C blow directly across the tube at a velocity of 7 m/s.
Assume the thermophysical properties of the exhaust gas are those
of air.
(a) Estimate the average heat transfer coefficient for the exhaust
gas flowing inside the tube.
(b) Estimate the heat transfer coefficient for the airflowing
across the outside of the tube.
(c) Estimate the overall heat transfer coefficient U and the
temperature of the exhaust gas when it reaches the
laboratory.(Note: 90°C is a reasonable guess for the tube
temperature.)
What is the value for the Nusselt number on the inside of the tube? N ui =
What is the average inside heat transfer coefficient, in W/m2·K? h i =
What is the value of the Nusselt number on the outside of the tube? N u o =
What is the average outside heat transfer coefficient, in W/m2·K? h o =
What is the overall heat transfer coefficient, U , in W/m2·K? U =
What is the temperature of the gas at the outlet of the tube, in °C? T m, o =
In: Mechanical Engineering
Can you write essay with 300-450 words related to these keywords? 1-Drag force 2- Lift force...
Can you write essay with 300-450 words related to these keywords?
1-Drag force 2- Lift force 3- Omnidirectional 4- Pitch control 5- Stall control 6- Yaw motor
In: Mechanical Engineering
Soil collected from the site is found to have γ t = 18.5 k N / m 3 , w % = 8.6 % γt=18.5kN/m3,w%=8.6%, and G s = 2.67 Gs=2.67. After a heavy rainfall overnight, 10 % 10% increase in the degree of saturation S r Sr was observed. Determine:
Soil collected from the site is found to have
a. the degree of saturation
b. the void ratio e of the soil before the rainfall
c. The water content w\% after
In: Mechanical Engineering
An organic soil, the void ratio e is found to be 10.0 and GS is .2.35 If this soil is fully saturated, find:
An organic soil, the void ratio e is found to be 10.0 and GS is .2.35 If this soil is fully saturated, find:
a. Unit weight of the soil
b. water conten w%
c. Does this soil sink in water?
In: Mechanical Engineering