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Question 1. FIGURE shows a pneumatic circuit diagram used for air supply and exhaust in an automatic control system.
(a) Name all symbols (including pipelines) used in the system.
(b) Number the ports of each DCV.
(c) Classify the sections of the components in the circuit.
(d) State how the system works.
(e) State the functions of valves 1 and 2.
Question 2. FIGURE shows a pneumatic circuit in which four actuators are controlled.
(a) state the sequence in which the cylinders operate on the operation of the start valve.
(b) show, with the aid of a schematic diagram, how an electronis controller could be included in the circuit to control the sequence of cylinder operations.
What happens to the cutting and thrust force as tool rake angle and cutting speed are increased and what is the relation between the cutting and thrust forces to the depth of cut?
Friction between the piston and the cylinder wall can be neglected. For the air, determine the initial and final pressures, in kPa, and the work, in kJ.
Module FEA - FINITE ELEMENT ANALYSIS , Provide answers to all questions. Note that assignment part 2 carries 60% of the marks for the course.
the spherical gas tank is fabricated bynbspbolting together two hemispherical thinnbspshells of thickness 30 mm. if the
Determine the smallest horizontal force required to lift the 260- crate. The coefficient of static friction at all contacting surfaces is = 0.7. Neglect the mass of the wedge.
A satellite is in Earth with an altitude at perigee of 550 km and an altitude at apogee of 5000 km.
A particular grade of Nitinol SMA is capable of upto 6% strain recovery and develops an internal restoration stress of upto 300 MN m-2. Estimate the amount of force and distance of travel that could be triggered by warming a rod
argon gas enters an adiabatic compressor under steady flow conditions at 12o kpa and 30 c with a velocity of 20 ms and
Describe the kutta condition.
Determine the reactions of simply supported beam to both a concentrated and uniform load. A beam with a span of 21 ft is simply supported at the left-hand end and fixed at the right-hand end.
Consider a metal single crystal oriented such that the normal to the slip plane and the slip direction are at angles of 43.1
A 7 kg cylinder is attached to a series of two springs in the attached illustration. If the cylinder is released from rest - when the springs are both un-stretched - determine the maximum stretch in each spring.
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