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Mechanical-Engineering Questions
Mechanical-Engineering Questions
Explain the difference in performance of a wind turbine if it (a) operates at a constant...
NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to...
i. Traditionally, most brake calliper arms have been made from steel or aluminium alloy. Select two...
An apparatus has been created to measure the diffusion coefficient of carbon through iron. It is...
A rectangular steel alloy A-36 (structural steel) plate is hanging vertically and supporting a hanging weight...
If somebody could assist me with the below questions, I would greatly appreciate it! Thank you!...
A hypothetical metal has the simple cubic crystal structure shown in Figure 3.3. If its atomic...
Select the type of stress – strain curve (hard-brittle, ductile-tough, ductile-soft) that best describes each of...
over the next 50 years, the population is predicted to grow from 7 billion to 10...
Your are tasked with providing a preliminary design of a solar system that is to generate...
Two Technicians are discussing automatic transmission/transaxle oil pumps. Technician A says that vane-type pumps are positive...
A 9500 kg- helicopter takes off vertically from rest. The upward thrust (in KN) is given...
Design a steam power plant of 1 MW using a rankine cycle. Describe the rankine cycle...
You decide to build a new super-space-time-tunnel-vehicle to escape the fast approaching viruses and zombies. Since...
work out the annual savings if you replace 16 light bulbs (50watts each) with energy savings...
thought Experiment: In the “Resonance” lab, you were asked to describe how you could model a...
Gas tanks have a fuel level sensor to indicate how much fuel is in the tank....
The humidity in a room at the temperature of 20°C is 40%. At the same time...
Write a short note on Temper embrittlement of low alloy stell and how it can be...
Please explain the meaning of equal stress (or strength) design and the approximate design geometry in...
composite material design: please solve all 1-Name two types of fibers and give the main advantage...
A heat pump is used to heat a house and maintain it at 24°C. On a...
composite engineering: "The lamina thickness of a composite [0/90/] plate is 10 mm. Given that the...
1. A liquid with a density of 750.0 kg/m3 flows through a 2.50 cm ID pipe...
A composite is produced from a titanium alloy reinforced with aligned silicon carbide fibres. The elastic...
3. A) Explain all types of aerodynamic aids useful in automobiles, draw neat sketches. B) Explain...
Some smaller refrigeration as well as air-conditioning cycles discharge condenser waste heat to the atmosphere via...
Surface Topography What is the typical surface roughness requirement for the following engineering components? a. Gear...
An insulated piston-cylinder device contains 0.1m3 of air (ideal gas) at 400 kPa and 25℃. A...
A smoke plume is rising through an atrium at the rate of a metre per second....
5) A moving plate is set 3 cm above a stationary plate which has a cross-sectional...
Air experiences a 50°C drop in temperature. Given that air has a gas constant of 287...
A man is in a room with a ceiling ht of 7m. If while standing 20m...
A 13 3/8-in OD, 85 lb/ft casing string, 5,000 ft long, is hanging in an open...
Please explain Griffith Energy Criterion and compare it with critical stress criterion from Inglis.
You would like to produce a gray iron casting that freezes with 86% eutectic. If the...
Explain in words why we need to introduce the stress tensor for fluid mechanics.
Please assume that heat is added to a moveable piston which has a constant pressure of...
Iteration count on the bisection method: We learnt that the bisection method is a kind of...
The flexural strength & associated volume fraction porosity (P) for two specimens of same ceramic (P/M)...
For a PMDC motor powered by a 12 V DC source, the no-load speed and stall...
A piston–cylinder device initially contains air at 150 kPa and 27 °C. In this state, the...
Give 5 reasons why we need orthotropic analysis for composite laminates?
P5-16. A tank contains a two-phase mixture of steam and water at 40 psia. If the...
Categorize which of the following metals could have the Endurance strength Se; and which metals would...
7 . You need to install a new cable to handle four years o f growth...
A tensile test specimen has a gage length = 50 mm and diameter = 20 mm....
Consider a plate-type fin made of AISI 1010 steel attached to an isothermal wall which is...
The following specifications of an aircraft are given. Wing area: 17 m 2 Gross weight: 22700...
Can someone help me with this problem, please A mass of 4 kilograms of air in...
Air enters the compressor of a cold air-standard Brayton cycle with regeneration at 100 kPa, 300...
A carbon steel ball with 25-mm diameter is pressed together with an aluminum ball with a...
Suppose that a wing component on an aircraft is fabricated from an aluminum alloy (E =...
Why can polymers operate only at low temperatures, even though polymer chains contain covalent bonds just...
The stress state of a point is defined by σxx =−30MPa, σyy =60MPa, and σxy =−40MPa...
An applied stress fluctuates between -33 MPa and 6 MPa. The yield stress of the material...
1. if a waterfall is 100 ft high, estimate the speed of the water when it...
"Students are in need of a portable desk to use along with a laptop computer. They want...
A long, hot AISI 304 stainless steel bar of rectangular cross section has dimensions w =...
The driver of the truck suddenly applies the brakes and the truck comes to a stop....
It is well known that plastic forks, spoons, and knives are not particularly rigid. What suggestions...
The axes Ox′1x′2x′3are obtained from Ox1x2x3 by a rotation through an angle αabout Ox3. If σ′ij...
You have an aluminum housing that calls for two holes 12 inches apart. The drawing notes...
4. (20 pt) A wood beam AB on simple supports with span length equal to 9...
A pure magnesium alloy is emptied in a sand mold. If the longitude of the sprue...
7.7 kg/s cold feedwater enters a 500kPa open feedwater heater (a mixing chamber) at 50oC. Bleed...
In a processing plant that works with energetic material the engineers are debating what is the...
Perform calculation of steam Rankine cycle and study ORC systems: o Steam Rankine cycle: ▪ Assume...
1. A pump steadily delivers 13.7 kg/s of water at the conditions given below. Calculate the...
please show work so i can understand any mistakes I may have made if any. I...
determine the prandtl number, nusselet number, and reynolds number from the following flow data. cp= .5...
Draw the pressure force acting on a.) a spherical fluid blob b.) a cylindrical fluid blob...
I need help with the following question. Any examples and drawings as well as a detailed...
A combined cycle gas turbine / vapor power plant uses the turbine exhaust as the energy...
A large flat plate is subjected to constant-amplitude uniaxial cyclic tensile stresses of a maximum stress...
A Carnot heat engine operates with a high pressure of 750°C. The engine rejects 200 MJ...
Write a complete note with a clear explanations giving examples using figure or drawing about each...
Compare metals and polymers in these aspects: working conditions, product complexity, properties, and energy consumption.
Describe the general features of metal, ceramic, and polymer (plastics), give two examples for each type...
Problem: When alpha-iron is subjected to an atmosphere of hydrogen gas, the concentration of hydrogen in...
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