Page 45 - PNEUMATIC AND HYDRAULIC

QUESTION 4

a) Describe ONE (1) function for the hydraulic pump filter and hydraulic

reservoir? (5 marks)

b) In a manufacturing system, hydraulic system is commonly used. Due to this,

maintenance of hydraulic system is required to ensure the system is performing
well. Identify and discuss FIVE (5) disadvantage of hydraulic system that will

occur if maintenance is not performing well. (10 marks)

c) Explain the function of the component as listed below: -
i. Flow control valve

ii. Relief valve

iii. Sequencing pressure control valve
iv. Pressure reducing valve

v. Directional control valve (10 marks)

QUESTION 5

a) Explain Hydraulic system on the pressure in the closed according to Pascal’s
principle. (4 marks)

b) Explain in detail TWO (2) major problem that may occur when using hydraulic
system. (6 marks)

c) List FIVE (5) disadvantages using hydraulic system. (5 marks)

d) In hydraulic cylinders, there are faults and problem that will arise when the

hydraulic cylinder is used, Identify FIVE (5) faults and problems involving the
hydraulic cylinder. (10 marks)

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