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The disc shown in the figure is supported by two

circular tubes of same cross section and different

lengths which both are connected to the disk at one

end and fixed to a wall at the other end. The internal

and external diameters of the tubes are8cmiD =

and10cmoD = , respectively. Calculate the angle

by which the disk rotates when subjected to a

torque of3kN.mT = . The tubes are made of steel

with Young’s modulus of200GPaE = and

Poisson’s ratio of0.3

60 cm and 40 cm

A four-cylinder petrol engine has a swept volume of 2000 cm3, and the clearance volume

in each cylinder is 60 cm3. Calculate the air-standard thermal efficiency. lf the induction

conditions are 1 bar and 24oC, and the maximum cycle temperature is 1400oC, calculate

the mean effective pressure based on the otto air-standard cycle.

1. Write an algorithm and draw the flowchart that will ask the user to enter 3 real

numbers (x,y and z) as input. The algorithm will calculate and print the

following;

a. The area of a circle by using x as diameter. (Consider pi as 3.14)

b. The area of a rectangle by using y and z as both sides.

c. The area of a triangle by using x as height and z as base