Electrical Engineering Answers

ethical issues involved in the Chernobyl catastrophe

ethical issues involved in the Three Mile Island incident

“Fulfill the obligations” (Al-Maida:1). Explain in detail with actual day to day scenarios of your own academic/professional life how the given verse sums up the concept of Professionalism and Professional Ethics.

People living nearby have specific concerns about two operations carried out at the factory:

■ Stamping, which is a noisy process

■ Plating, which uses cyanide and is therefore perceived as a deadly process by some residents. 

The company has decided to make a presentation to the local residents association explaining how it complies with legislation and demonstrating its good ‘green credentials’, particularly in respect of discharging waste water from the onsite treatment plant into a nearby culvert which runs down to a river. 

Make a list of generic constraints that impact on engineering businesses.

With respect to the two main concerns of residents (Stamping and Plating), identify the key pieces of legislation which could apply here.

The load on an installation is 800 kW. 0.8 lagging PF which works for 3000 hours per annum. The tariff is 1 $ per kVA plus 0.2 Cents per kWh. If the power factor is improved to 0.9 lagging by means of loss-free capacitors costing 0.6 $ per kVAR, calculated the annual saving effected. Allow 10% per annum for interest and depreciation on capacitors.

Implement the following Boolean function only by using decoders and OR gate. 

F(A,B,C,D) = ∑ (1,2,4,7,10,11,13,15)

Implement the following Boolean function only by using 16x1 multiplexers.

F(A,B,C,D) = ∑ (1,2,4,7,10,11,13,14)

Implement the following Boolean function only by using 2x1 multiplexers only.

F(A,B,C,D) = ∑ (0,3,4,8,10,12,14,15)

A system has 4 input lines {A,B,C,D} and 1 output line {F}. The input lines {A, B, C } of the system are

connected to the selection lines {S2 , S1 , S0} of an 8×1 multiplexer, respectively. The connection configuration

of data input lines {i0, i1, … , i7 } of the multiplexer are given as follows:

i1= i4 = D; i3 = i5 =1; i0 = i6 = 0; and i7 = i2 = D’

Determine the Boolean function that the output of the multiplexer implements. Also, provide a minimized PoS

expression for the obtained Boolean function F(A,B,C,D).

A system has 4 input lines {A,B,C,D} and 1 output line {F}. The input lines {A, B, C} of the system are connected 

to the selection lines {S2 , S1 , S0} of an 8×1 multiplexer, respectively. The connection configuration of data 

input lines {i0, i1, … , i7 } of the multiplexer are given as follows: 

i1= i2 = D; i3 = i5 =1; i0 =i6 = D' ; and i7 = i4 = 0 

Determine the Boolean function that the output of the multiplexer implements. Also, provide a minimized SoP 

expression for the obtained Boolean function F(A,B,C,D).