Actuators are devices that perform work commanded by a computer.

Answer the following statement true (T) or false (F)


True

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(a) Consider that two infinitely long parallel edge dislocations are viewed on a simple two dimensional x?y diagram, such as Fig. 4.37. This first of these dislocations is located at x = 0, y = 0 and is positive. Its slip plane is horizontal and this contains the x?axis. The other dislocation is negative and also lies in a horizontal slip plane separated from that of the first dislocation by a vertical distance (y) of 10b, where b is the Burgers vector for both dislocations. Now assume the first dislocation is fixed in place, and the second can move parallel to the x?axis. With the aid of a computer, plot ??, the x component of the force (per unit length) between the dislocations, as function of x from x = ?50 nm to x = +50 nm.    Let u =86 Gpa, b = 0.248 nm, and v =0.3.

(b) Discuss the significance of the variation of Fx with distance as the mobile dislocation moves from x= - ? to x= +?.

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Today, most wheel cylinders are rebuilt, rather than replaced

Indicate whether the statement is true or false

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When the direction of oil flow in the stator is the same as that in both the impeller and the turbine, this is known as:

A. rotary flow B. vortex flow C. full stall D. stator lock

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If a standard-size modular brick weighs 4? pounds, what is the weight in pounds of three cubes of standard-size modular brick containing 5 banded groups each containing 105 brick?

What will be an ideal response?

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