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Mechanical-Engineering Questions
Mechanical-Engineering Questions
A rigid tank contains 56,4 kg of refrigerant- 134a at 850 kPa. If 32,6 kg of...
A polyethylene (PE) membrane is being used as an oxygen barrier. Oxygen is being supplied on...
6. Give examples of several typical applications of mechanical surface treatment. Hint: give examples of mechanical...
Your assignment is to design a portable lathe type machine to perform simple turning operations needed...
Measurements made on a newly installed air-handling system were: 20 rev/s fan speed, 2.4 m³/s airflow...
For a dynamic biomechanical model, what forces and moments need to be added to the static...
What is the pressure at the bottom of a 32m high water tower in gage pressure...
To ensure turbulent conditions and minimum mixing time during agitation with a turbine impeller, the Reynolds...
Consider an ocean-facing room in a high-rise building (L/W of 1). The ocean-facing wall (with window) is...
A box weighing 100 N is placed on the floor of a truck moving 60 km/hr...
Give an example of non nodal displacement of triangular element?
What are the four key units of a vapor compression refrigeration cycle? What are the functions...
Solve Question using While loops-MATLAB Write a program that generates a random number and asks the...
An open-cycle OTEC system operates with warm surface water at 24 C and surface condenser water...
Explain why and under what necessary conditions does secondary super heating increases the efficiency of the...
Prove the following vector identity using index notation A X (BXC) = (A.C)B - (A.B)C
System Model: Automotive Air Conditioning System Outside Air Temp: 45 oC Car Interior Air Temp: 22...
For pressure driven flow of a liquid in a circular pipe, give the correct relationship between...
Determine the efficiency of a water turbine The buckets of a Pelton wheel revolve on a...
What is air buoyancy and when might it be important in mass measurement?
A cycle where the working fluid is air (R = 287 J/kgK, k = Cp/Cv =...
The average price of coal used for electricity production during 2018 was $40 per short ton...
hello I woould like to answer such questions.What is the effect of temperature between the interior...
A production engineer want to select between to machines, machine M1 insulation cost is $14,500 and...
The surface of a furnace wall is at a temperature of 1350oC. The outside wall temperature...
Sketch and describe the cylinder relief valve, list four condition for component in (a) lift
21. Orienting a building with respect to the sun can save ______ of heating and cooling...
A hoist mechanism raises a crate with an acceleration (in m divided by s squaredm/s2) a...
Please show solutions to part (b), (c), and (d). Thank you. A system consisting of 1.0...
Steam is to be condensed on the shell side of a heat exchanger at 120°F. Cooling...
Car tires are basically polymer. What makes car tires resistant to wear? Explain how? &nb
A fossil-fuel steam power plant operates at about 50% of Carnot thermal efficiency. It has been...
How can we test the accuracy of the electronic pressure sensor’s calibration?
1. Answer the following questions a) how do the volumetric flowrate (V^.=V/t) and Reynolds number affect...
The hot combustible gasses of a furnace are separated from the ambient air and its surrounding,...
The refrigerant gas which is air, enters the compressor of a Brayton refrigeration cycle at 101...
Briefly indicate why the below are considered as international concerns:- Pollution and waste management ……………………………………………………………………………………. Biodiversity...
Why is it important to know the chemical composition associated with microstructural features? Give three examples.
A rigid tank contains 125,0 kg of saturated water vapor at 245 °C. Determine : a....
Combined Gas and Steam Power Plant The highest temperature at the inlet of a gas turbine...
The pinion of a straight gear, with an angle of 20 °, 36 teeth and diametral...
Define these companies- ( What inputs and outputs symbols look like ) 1.) Siemens 2.) Allen...
.Consider the same 2nd order system with a pair of poles at s = −3 ±...
A circular hoop of mass 'm' and radius 'R' attached to a spring of spring constant...
The following data were obtained during a test run of a packed cooling tower of 0.4...
18–45 A house located in Boulder, Colorado (408 N latitude), has ordinary double-pane windows with 6-mm-thick...
For viscous flow between two plates. The lower plate is fixed and the upper plate moves...
(a) Explain, with the aid of a sketch or diagram, why the Earth experiences tides and...
Given a straight bar of 1080 steel from the foundry, it was machined into a katana...
For a vertical blade and motor setup, how much torque would be required to slice an...
A velocity field is defined by u=(9x)m/su=(9x)m/s and v=(2t)m/sv=(2t)m/s, where tt is in seconds and xx...
For a damped & free vibration, the amplitude gradually decreases. Determine the relative decrease of amplitude...
Estimate the Joule-Thomson coefficient of refrigerant-134a at 320 kPa and 20°C. Assume the second state will...
A single acting compressor is required to deliver air at 60 bar from an induction pressure...
A hollow rod with dout= 5 cm and din=3 cm is subject to 100N axial compresive...
Discuss the following actuators by describing: 1) how they work, 2) how they are useful to...
A ceramic having a porosity of 15% is found to have a Young's modulus of 35×106psi....
Write a computer program to solve a tri-diagonal system of equations. The code should do the...
Beginning with a differential control volume in the form of a cylindrical shell, derive the heat...
The temperature field function is given by T(x, y) = 6x2 + 3y2 – 4xy –...
A power plant owner pays $18.5 million per year in fixed costs for a power plant....
5) An input signal oscillates sinusoidally between 12 and 24 V with a frequency of 120...
What is the mechanism by which carbon strengthens steel in the absence of heat treatment?
“Bellatrix” (γ Orionis; HD 35468) is a bright star in the constellation Orion and has the...
Given a combustion turbine power plant with a capacity factor of 0.18 and a fixed charge...
Design a helical compression spring subjected to a varying axial force of 1000 N to 2000...
Continuing with the beam-bending topic that you have seen in prior classes and which you have...
An aluminum bar 200 mm long and having a square cross section 20.0 mm on an...
A heat engine that receives heat from a furnace at 1200 degrees C and rejects waste...
A piston cylinder device contains air with a volume of 0.05 m3 at 25oC and 100...
A 1/2-13 UNC-2A grade 5 bolt is to be used as a fastener in a connection....
Based on the law of conservation of momentum, a tube of air that is rotating is...
An air-standard Brayton cycle includes a regenerator which is shown in the below figure. The air...
I need to answer the following question: assume you have two pipelines, one with diameter d...
Based on the parameters that define a gear (N, Φ, Pd, K1, K2), develop a mathematical...
A UNS G1030 steel shaft, heat treated to a minimum yield strength of 75 kpsi has...
For the following pair of variables, state the units that might be used to measure each...
Chapter 15: 1. Shear plane angle and shear strain: In an orthogonal cutting operation, the tool...
What are the two-tolerance zone shapes a straightness tolerance can have?
Two steel plates, each ¼ inch thick, are to be joined by two fillet welds. If...
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