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Mechanical-Engineering Questions
(Heating Transfer) - A wall with a heat transmission coefficient of 2 W / mK; thickness,...
Liquid, pumped through the inside of the pipe, is at a temperature Ti = 400K and...
A pin fin, fabricated from an aluminum alloy (k = 185 W/m K), has a diameter...
A 10-mm diameter tube has a maintained surface temperature of 200°C. Engine oil enters the tube...
Liquid water flows in a long pipe of internal diameter of D = 0.01 m at...
a)(10%) Briefly describe the phenomenon of coring and why it occurs. b)(10%) 50 LBS of Ag...
A well-insulated rigid tank contains 6 kg of saturated liquid vapor mixture of water at 150...
A Carnot engine operates between temperature limits of 2160 R and 720 R, using 0.88 lbm...
(a) With the same material, die angle, and reduction, central bursts may be encountered in drawing...
Used engine oil flows at 0.025 m/s through a 12.5-mm-diameter tube. The oil enters the tube...
Explainwhyoffshorewindfarmscanharnessmorefrequent,consistentandpowerful winds in comparison with onshore wind farms
3) If f=f(x, y), derive a forward finite difference approximation of 3rd order accuracy, O(h³), for...
Determine the tensile strength (engineering stress in pounds per square inch, psi) for the following material:...
Ethylene (C2H4) gas at 25 ° C temperature and 1 atmosphere pressure burns by entering a...
In an air-assist atomizer, how do the liquid flowrate (mL) and the air velocity affect the...
1.A hydraulic lift is lifting a car that weighs 14 kN. The area of the piston...
Mixture of saturated liquid-vapor water enters a compressor with mass flow rate of 2 kg/s, velocity...
Mercury at an inlet temperature of 75 °C flows through a 2 cm inside diameter tube...
A steam turbine with an isentropic efficiency of 95 % has an inlet state of 500°C...
hi please elaborate rotary positive displacement working principle with labelled and the flow image , application...
A 10-m3 vessel is being filled with steam at 0.8 MPa and 400°C. It enters the...
The axial load on a motor shaft is 4 kN, and the radial load is 2...
A suction pump you recently purchased shows that the NPSHr = 12 ft. Explain what is...
A smooth flat plate of length ℓ = 4 m and width b = 2 m...
Experiments on a rough turbine blade surface indicate that the local Nusselt number is ???=0.044???0.78??1/3. (a)...
Now that you know how to calculate sigma and process efficiency, what are your thoughts about...
A heat recovery unit in a factory uses a shell-in-tube counter flow type unit to recover...
3S4+10S3+5S2+S+2=0 Judge the stability of the system...
A circle of a radius of 100 mm is produced by a reference-word interpolator. The system’s...
please describe the difference of representative S–N curves for titanium and its alloys compared with those...
Subject: Thermodynamics Mechanical Engineering Problem I. For CO2 draw and describe each process in the three...
The acceleration of a particle that moves linearly is given as ? = - (0.1 +...
Consider the turbocharger of an internal combustion engine. The exhaust gases enter the turbine at 450...
A 1000 mm wide steel sheet made of C35 is normalized by cold rolling 10 mm...
1. A specimen of an unknown material is subjected to tensile test. It presents a square...
A triple riveted butt joint which is used to connect two 8 mm thick plates. The...
1. The area below the stress-strain curve represents: a. The toughness for a brittle material b....
A figurine weighs 1500 g when dry, 1845 g after being soaked in water, and 1005...
A smooth pipe 30 cm in diameter and 100 m long has a flush entrance and...
Top View 2. [Total 15 pts] This problem has two independent parts A and B. A....
Top View 2. [Total 15 pts] This problem has two independent parts A and B. A....
Top View 2. [Total 15 pts] This problem has two independent parts A and B. A....
Find the thrust force, F developed when water (ρ=998 kg/m³) is pumpued through a 300 mm...
From 3 mm thick cold-rolled steel strip, DC03, Rm = 420 N / mm2, clamps of...
A 1000 mm wide steel sheet made of C35 is normalized by cold rolling 10 mm...
What does Nusselt number equals? Show that it is the dimensionless temperature gradient at the wall,...
A smooth tube 5 cm in diameter and 450 cm in length is placed inside another...
. A 1000 mm wide steel sheet made of C35 is normalized by cold rolling 10...
For the Control Volume approach, Select one: a. we need to know the fluid properties (such...
A plate of length 30 mm in the direction of the flow, a width of 45...
Two hydraulic cylinders is to control ABC robotic arm. As it is known that the cylinders...
During an unsteady-flow process: Select one: a. The amount of mass entering a control volume is...
(10 pts) Briefly explain Affect of regulations and benchmarks, on the Engineering design process in view...
An axial-flow compressor rotor at the pitchline has a radius of rm = 0.3 m. The...
The mileage of a stationary twin cylinder petrol engine generating output power at 03 a rate...
A gas contained in a closed rigid container is heated from initial temperature and pressure of...
Helium is steadily flowing through a duct. At the entrance of the duct the gas is...
An adiabatic compressor operates on air in a steady state process. The air enters the compressor...
Air at 277 oC and 1000 kPa enters a turbine operating at steady state with a...
Write the Navier-Stokes (N-S) equations (viscous - incompressible flow) in longer form in x,y,z (Cartesian) coordinates...
If the capillary rise in glass tube of 22 mm diameter is 5.6 mm when immersed...
A helicopter can hover with 10 soldiers on board at Standard Sea Level. Every soldier with...
KFC is investigating new ways to deliver beverages to customers. One proposal is for a tube...
1. An oven chimney is made of brick with a heat transmission coefficient 1.1 W/mK 10...
A 10-m3 vessel is being filled with steam at 0.8 MPa and 400°C. It enters the...
A rigid, insulated tank that is initially evacuated is connected through a valve to a supply...
. A twin-cylinder 2-stroke engine has a swept volume of 150 cm3 . The maximum power...
Prove that the true strain at necking equals the strain hardening exponent.
Derive the cutting ratio or chip-thickness ratio in terms of the shear angle and rake angle....
A rod of brass originally 600 mm long is pulled in tension along its longitudinal axis...
Why is control of the volume of the blank important in closed-die forging? (please explain with...
Derive the coefficient of friction in terms of the cutting force, thrust force and rake angle
Consider a person who is trying to keep cool on a hot summer day by turning...
The power output of a power plant is 5MW.The power plant rejects heat to a nearby...
A conical surface will open on an automatic lathe. The workpiece is 1000 mm long and...
It is desired to drill a 350 mm diameter hole to a certain depth in a...
Write the name of the thermodynamic cycles of gasoline and diesel fuel internal combustion engines. Draw...
1. a) If a pressure gauge reads 350 kPa what is the absolute pressure? b)A fluid...
According to the hydrocarbon mixture expressed in the form of CxHy in the closed formula, 10%...
4. The 10-lb box falls off the conveyor belt at 5-ft/s. If the coefficient of kinetic...
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