Engineering Answers

Sketch the input-output characteristics of a compressor and expander

logic symbol for a 6-line to- 64-line decoder 74HC154

Task P6 Part 2 – Brittle Failure 

1. Write a brief definition of brittle failure  
2. Describe the characteristics of brittle failure (e.g. failure surfaces, change in shape) 

You must include diagrams and/or photographs 

3.Describe the two types of brittle fracture  

You must include diagrams and/or photographs 

4.Describe an example of a metal component or structure that has failed in a brittle manner. 

You must include diagrams and/or photographs 

1. Write a brief definition of ductile failure 
2. Describe the characteristics of ductile failure (e.g. failure surfaces, change in shape) 

You must include diagrams and/or photographs 

3.Describe the process of ductile failure by microvoid coalescence 

You must include diagrams and/or photographs 

4.Describe an example of a metal component or structure that has failed in a ductile manner. 

You must include diagrams and/or photographs 

Draw the equivalent circuit of single phase transformer and explain the parameters referred to primary and secondary

A conical vessel 12 cm deep and with a radius of 6 cm at the top, is being filled with water. If the rate at which the water rises is 2 cm/sec, how fast is the volume increasing when the water is 4 cm deep? How fast is the volume increasing?

Determine the values of P x and Ex for each of the following signals: (a) x 1 (t) = e- 21 u(t) 

Preparing a report and a proposal on matching of properties and engineering material selection, analyse behaviour of materials, predict various degradation, and finally propose techniques and describe steps how different techniques can be used to contrast and compare theoretical properties by real time values.

2.1 Propose 2 to 5 suitable engineering materials (metals or non-metals) can be used to fabricate following components. You may survey more relevant resource online.

a. Roller conveyer

b. Conveyer leg mountings with the floor

c. Heating oven

d. Dipping tank

e. Safety measures for workers

Mould bases (Figure 5) are at the room temperature of 28°C before entering to the heating oven and mould bases temperature change following the graph shown in Figure 6. Calculate the expansion of the mould base width at different temperatures and plot with the time measured in minutes. If the linear thermal expansion coefficient of mould base that is made out of Aluminium is 24 x 10−6 m/mk and linear thermal expansion coefficient of the rollers is 15 x 10−6 m/mk, determine the minimum gap between mould base and the roll

1.Find the centroid of the region bounded by the curve 𝑦 = 𝑥3 and 𝑦 = 4𝑥 in the first quadrant. 

2. Find the centroid of the solid of revolution generated by revolving the region bounded by 𝑦 = 4𝑥 − 𝑥2 and the x-axis about the y-axis.