Give two practical examples for following concepts/principles. Also write where these are used with brief explanation: (a) Centroid (b) Moment of inertia (c) General plane motion (d) Work energy principle (e) Impulse-momentum principle

Maximum load capacity: 50,000 N Test rate: 3 mm/min - 0.05 mm/s Steel A Steel B Initial length, Lo 40 mm 40 mm Initial diameter, do 6 mm 6 mm Final length, Lf 48 mm 52 mm Final diameter, df 4.2 mm 3.1 mm  

From the data given in excel file, calculate:

(b) Tensile strength, modulus of elasticity, modulus of resilience, % elongation and % reduction in area.

(c) Plot both engineering stress strain curve and true stress strain curve.

(d) Compare the tensile behaviour of steel A and B in one paragraph

For an ideal gas-turbine cycle with two stages of compression and two stages of expansion, the pressure ratio across each stage of the compressor and turbine is 3. The air enters each stage of the compressor at 300 K and each stage of the turbine at 1200K. Using variable specific heats, determine the back work ratio and the thermal efficiency of the cycle, assuming

(a)no regenerator is used,

(b)a regenerator with 75% effectiveness is used.

Write a detailed understanding about the history, current trends and future research of 'Ground Support Vehicles for Guided Missile Programme' pertaining to India and also the international scenario. Include case studies.

As a person serving in the role of a safety practitioner, how would you explain to a new worker the difference between engineering and administrative controls and how they relate to a specific work environment? Be specific in your response, and include examples of your work environment.

A single-cylinder, four stroke research engine operates on Otto cycle. The specification
of the engine is shown as below:-
Displacement volume of the cylinder = 540 cm3
Clearance volume of the cylinder = 60 cm3
Minimum temperature = 200°C
Minimum pressure = 200 kPa
Net work output = 1000 kJ/kg
Sketch the process on a P-V diagram and by using constant specific heat at room
temperature, determine:
i) the temperature and pressure at each process,
ii) the thermal efficiency of the engine, and
iii) the Mean Effective Pressure (MEP).

An Otto Cycle engine operation at cold-air standard has a volume of 0.1908 at the beginning of isentropic compression. If the compression ratio is 12.5, how much heat is released from the fuel per kg of fuel burned if the fuel consumption is 0.02 kg/min? The mean effective pressure is 350kPa.

heat transfer question, show equations, assumptions, calculations and steps clearly. will give thumbs up rating if solved correctly in 30 minutes

Define thermal diffusivity (α) and give its mathematical expression.

Please describe in detail your knowledge of electrical engineering?

Please describe in detail your knowledge of mechanical engineering?

Please describe in detail your knowledge of computer software?

What does customer service mean to you?

What interests you most about this position?

What are your career goals?

Why are you looking for another job?

What is your business travel tolerance?

What has been your business travel levels in your past opportunities?

Steam enters an adiabaticnozzle operating at steady state at 20 bar, 320°C, with a velocity of 100 m/s. The exit pressure and temperature are 7 bar and 200°C, respectively. The mass flow rate is 5 kg/s. Neglecting potential energychanges, determine:

a.the exit velocity, in m/s.

b.the exit flow area, in cm2

In the two-tube heat exchanger with the same axis used as engine oil cooler, cold water enters the steel pipe with inner/outer diameter of 25/30 mm (K= 55 W/mK) entering with at 15°C temperature, 0.5 m/s speed and comes out at 25°C temperature. Hot oil enters the steel pipe with inner/outer diameter of 40/46 mm with a speed of 0.25 m/s at 60°C temperature. According to the oil is required to be cooled at 5°C;

A) Find the pipe length for parallel flow?

B) Find the pipe length for reverse flow. Examine the results.

C) Calculate the pressure loss of the oil and the required pump power in reverse flow.

1. What is mesh convergence and how is it achieved in FEA in the absence of a known exact solution?

2. What are the four main sources of error in finite element model in order of least important to most important?

What is the more beneficial in resisting torsion the solid section or the hollow section? State why?

Please Solve As soon as
Solve quickly I get you thumbs up directly
Thank's
Abdul-Rahim Taysir

Two plates of thicknesses 25mm and 15mm are clamped together by an M8x1.25 bolt used with a regular nut and with regular washers placed on both the nut and bolt head sides. The top plate is 25mm thick with E=70 GPa and the bottom plate is 15mm thick with E=90 GPa Determine the fraction of external load borne by the bolts. The bolt, nut and washer are made up of steel (E=207 GPa). Note: Round up the bolt length to the nearest 5mm