Choose an occupational health hazard interest to you.

*********************** Do not copy write or just post something from google, you will get a thumbs down!!! please and thank you

***** do not hand write please

As a chemical engineer professional, if you were to encounter this hazard in a work environment or situation (thoroughly identify the hazard and describe the situation) describe how you would control the hazard for the workers working in the environment or situation you presented.

1. The following are economic criteria to evaluate an engineering project, except one. Which one?

Select One:

a) Maximum Profit

b) Minimum Profit

c) Maximum Rate of return

d) Minimum Pollution

e) Minimum Payback period

2. Engineers often use a common method used to resolve uncertainty, which is:

Select one:

a. risk analysis.

b. cash-flow analysis.

c. sensitivity analysis.

d. economic impact analysis.

e. marginal analysis.

3. If offered $100 today or $150 one year from now, you are being asked to:

Select one:

a. make a guess.

b. make a choice under uncertainty.

c. reveal your implied interest rate.

d. compare two values which are not comparable in principle.

e. reveal your private financial information.

An air compressor operating in adiabatic steady flow takes in air at 17 C, 200 kPa and discharges is at 1300 kPa. Calculate the minimum work required to drive the compressor assuming the compressor has

i) constant specific heats.

ii) non-constant specific heats.

An activated sludge aeration blower is delivering air to diffusers in an aeration tank. You want to estimate the isentropic efficiency and the work input (by the motor). At the blower inlet, the volumetric flow rate is measured at 85 m3/min, the pressure is 0.98 atm and the temperature is 20⁰C. If the pressure is increased to 1.61 atm and the blower outlet temperature is 350 K: a) what is the blower isentropic efficiency, and b) what is the work input (kW) to the blower (by the motor)? Hints: k for air can be taken (Table A-2b) as 1.40; you can use Equation 8-43 to determine the isentropic process T2 value. You can use the Ideal Gas Law to determine the mass flow rate based on the inlet conditions and volumetric flow rate. Cp can be obtained from Table A-2b (From: Introduction to Thermodynamics and Heat transfer).

Formula 3 =  y( x) = (x^3 - 2x^2 + 5x – 25)/40

In terms of hand calculations, determine the root of Formula 3 given above by using the Newton-Raphson method. Start with an initial guess of xo = -4, i.e., yo = y(-4). Label your successive solution pairs as(xo yo), (x1, y1), (x2, y2)….Work out your solution (at each step) to an accuracy of two places below the decimal point. Your overall solution is to display full detail of every step taken. At the end of your derivation, write a summary table that displays the x, y and dy/dx values for each step along the solution path. Clearly state your final answer and the number of iterations required to reach it.

The Ford Expedition has a 65.5-in. track and a 20-ft turning radius. The P265170R17 tires have a nominal radius of 15 in. If the vehicle was designed with a solid rear axle (i.e., no differential), calculate the amount of wind-up in the rear axle when the vehicle performs a 180" turn at minimum radius. (Answer: 2.18 revolutions.) (with explanation and details please)

The TED talk by Katherine Kuchenbecker was extremely controversial and brought about different aspects of robots and AI that I had previously never thought of. Throughout her video, she focuses on Haptics, which refers to touch technology. As we are aware, this is one of the things that differentiates us from robots, thus the controversial debate begins. Should we give robots the power to feel and touch, just like humans do? I believe that there are both positive and negative outcomes that can erupt from doing such a thing. On the one hand it can be beneficial in some medical fields such as dentistry in which people would become more experienced and knowledgeable before they actually begin their job as a dentist as they would be able to detect cavities based on their feel through this innovative technology. Another example that I enjoyed learning about and thought that was great was when it comes to exhibit museums. There are many instances in which we are not allowed to touch a work of art or sculpture and it is very hard to imagine how if would make us feel. If this were to be achieved through this new technology without actually having to touch the sculpture itself, it could really change and challenge the way we see and experience art. However, although there might be some positive aspects to this technology, there are also disadvantages that come with it. I really believe that feel and touch are senses that differentiate us from robots and it is a difference that makes us special and unique. I think that giving up this privilege could bring about negative consequences within society and provide people with fake and false confidence. I think that if this technology develops, we have to be careful with the way we manage it and we should consider not completely giving up all of the things that make us unique and special such as the fact that we can touch and feel.

An unbalanced engine mounted on an elastic support imposes a periodic vertical force on the support at the rotational frequency of the engine. In order to determine the relationship between the engine rotational frequency and the resonance frequency of the elastically supported engine, the engine run speed was slowly increased from its normal value of 550 rpm to 825 rpm, which resulted in a trebling of the amplitude of the measured displacement. No resonance was observed in the displacement response in the range of speeds investigated. Assuming that the damping present in the existing elastic support is negligible, determine: The natural frequency of the elastically supported engine is ----- rad/s?

The displacement volume of an internal combustion engine is 2.21 liters. The processes within each cylinder of the engine are modeled as an air-standard Diesel cycle with a cutoff ratio of 2.5. The state of the air at the beginning of compression is fixed by p1 = 1.6 bar, T1 = 325 K and V1 = 2.36 liters. If the cycle is executed 2100 times per min, determine: a) the compression ratio, b) the net work per cycle, in kJ, c) the maximum temperature, in K, d) the power developed by the engine, in kW, e) and the thermal efficiency.

An air-standard dual cycle has a compression ratio of 9.1 and displacement of Vd = 2.2 L. At the beginning of compression, p1 = 95 kPa, and T1 = 290 K. The heat addition is 4.25 kJ, with one quarter added at constant volume and the rest added at constant pressure. Determine: a) each of the unknown temperatures at the various states, in K. b) the net work of the cycle, in kJ. c) the power developed at 3000 cycles per minute, in kW. d) the thermal efficiency. e) the mean effective pressure, in kPa.

An air conditioner using refrigerant-134a as the working fluid and operating on the ideal vapor-compression refrigeration cycle is to maintain a space at 30°C while operating its condenser at 1000 kPa. Determine the COP of the system when a temperature difference of 2°C is allowed for the transfer of heat in the evaporator. (Take the required values from saturated refrigerant-134a tables.)

The COP of the system is ?

Is there an observable trend or difference between all the flowmeters readings (venturi, rotameter, and orifice) and the system flow rate (obtained using magnetic or coriolis flowmeters?

1. Describe the general characteristic of this pump series including pumpingmechanism type, housing material, bearing type, etc..

1. Describe the general characteristic of this pump series including pumpingmechanism type, housing material, bearing type, etc..