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a) State FOUR factors that affect the effectiveness of hydrodynamic lubrication as a means of reducing friction between components.
b) Under what conditions would boundary lubrication be used rather than hydrodynamic lubrication and what would cause this to happen?
c) Briefly describe THREE uses of lubricants other than for lubrication.
ladder slip: A uniform ladder having length of 7m rests against vertical wall with which it makes an angle of 45º, coefficient of friction between ladder and wall is 0.4 and
Write a literature review on the manufacture and application of metallurgical cokes in Nigeria.
Q. Flange Assembly with Torque Measurement? Select the proper bolts and gasket for the intended service. Use only new, undamaged gaskets. Lubricate the bolt threads and nut
Calculate the maximum allowable internal pressure to which a cylinder with an internal diameter of 200 mm and external diameter of 300 mm may be subjected if the cylinder is to hav
Illustrate the specification of PDDI (i) The 3-D geometry of the product which is defined by a set of curves, surfaces and volumes. (ii) The topology which describes the se
2 x 2 m square gate opens clockwise on a horizontal hinge located at point A, which is 100 mm below the centroid of the gate. The gate sits against solid rubber blocks which create
Sentiment analysis is a subfield of NLP concerned with the determination of opinion and subjectivity in a text, which has application in the analysis of online product reviews, rec
How are fuels divided ? Write disadvantages and advantages of each types. (b) A sample of coal supplied to a boiler has the following composition by mass : Carbon = 88%, Hydr
Q. Define the skid fabrication? Unless noted otherwise in this specification, skid fabrication shall be in accordance with GS-904-0510, GS-904-0511 and GS-904-0515. Dimensio
Determine weight of body and coefficient of the friction: For ce of 200N is needed just to move a certain body up an inclined plane of angle 15°, the force is parallel to th
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