A roller chain drive is to transmit a design power of 9.0 kW with the faster shaft having a speed of 84 rpm. Select the most suitable chain size and type of lubrication from the following options if the pinion has 15 teeth:

1 - Pitch of 25.4 mm, oil bath or disc lubrication,

2 - Pitch of 19 mm, drip feed lubrication,

3 - Pitch of 25.4 mm, drip feed lubrication,

4 - Pitch of 19 mm, drip feed lubrication,

Discuss this statement in detail within the context of the Malaysian environment. Very
often codes of practices suggest discretion of engineering judgement. There are merits
and demerits of international codes of practice and standards as opposed to national
documents within the context of the Malaysian industry and practices. Discuss by
giving examples of engineering judgement whereby such decisions does not conform
to an international code of practices and how it is justified. Is international conformity
always desirable?

4a- Explain what typical vibration problems you would expect to see monitoring a high frequency bandwidth of 2000Hz to 10000Hz, and what typical problems you can expect to see with a low frequency bandwidth of 2Hz to 1000Hz. 4b-Lack of lubrication within rolling element bearings can result in excessive metal-to-metal contact. How would you determine this was occurring using vibration analysis—provide spectra to illustrate your answer? What role does high frequency filtering techniques like amplitude demodulation play in analysing a lack of lubrication situation?

Five kg of butane (C4H10) in a piston–cylinder assembly undergo a process from p1 = 5 MPa, T1 = 500 K to p2 = 2 MPa, T2 = 450 K during which the relationship between pressure and specific volume is pvn = constant. Determine the work, in kJ.

Describe in detail how SARA analysis is conducted. What is its significance? Describe the role of Asphaltene in crude oil emulsion stabilization mechanism. How does the presence of Resin affect the Asphaltene stabilization process? (please provide resources)

(a) List the characteristics of parabolized flows and the interest for solving these type of flow simulations and

(b) describe different pressure fields to start the solution of the momentum equations for the computational process

A block sits on a flat horizontal surface. The block's mass is 100kg. The coefficient of static friction is 0.3. The coefficient of kinetic friction is 0.25.

Find whatis the friction cone angle between the two surfaces in degree?

“Main landing gear of each aircraft is used to absorb the load of the aircraft in landing/ take-off and also weight of it while it is on ground. After reaching its flight cycle, it needs to overhaul to keep aircraft safe. Write an essay how to inspect, clean and lubricate the bearing of main landing gear during maintenance. Make sure the procedure is complete.”

A standard vapour compression cycle uning R22, which have the following data: > Power developed 50 kW of reftigeration. - Power required for compression 11 kW. > Evaporation pressute 4 bur. > Mass flow rate of refrigerant 0.3 kuls yd Calculate condensing temperature, discharge temperature and coefficient of performance

MATLAB CODE: Making cubic spline iterpolation function. Then, To solve use Tridiagonal matrix algorithm(TDMA)

6.1 Housing of gearbox

analyse and identify the manufacturing processes used to make the component – both primary (bulk shape forming) and secondary (or finishing) processes. Include sub-sub-section as follows for each component:
o 6.1.1 Component Observations
? Describe your observations of the physical component which indicate what manufacturing processes were performed.
o 6.1.2 Manufacturing Process
? With supporting literature and research, describe the chosen manufacturing process concisely in detail, noting its advantages and disadvantages – describe it in the context of the gearbox you are looking it, not just generally.
? Detail the advantages and disadvantages of these processes
? Relate the chosen method to production volume of the gearbox.
o 6.1.3 Material Relationship
? Relate to the material and its appropriateness in this manufacturing method (e.g. does it have suitable castability?)

Thank you.

Design an longitudinal and cirvumferential connections for boilers that are 2.4 meters in diameter and loaded with pressure of 1 N / mm². The longitudinal joint is made with a triple riveted butt model with an efficiency of about 85% and its cirvumferential connection is a double riveted lap with an efficiency of 70%. The pitch of the outer rivet of the rivet is twice the inner row and the width of the plate cover is not the same. The allowed stresses are:

??_??=77 MPa; ?? = 56 MPa dan ??_??=120 MPa

Assume the rivet resistance to the dual shear force is 1875 times larger than a single shear force.

DRAW / SKETCH the complete connection !.

Thank you.

Best Regards...