All of the following are advantages of synthetic oil over conventional oil EXCEPT: Select one: a. cost effectiveness. b. better low temperature viscosity. c. fewer wax impurities. d. operation at higher temperatures.

7- As the temperature of the nitrogen gas increases _______________ of same gas increases. Viscosity Specific volume Weight density Density

I will give a thumbs up. Please help me 30 mins. left Given the ultimate/gravimetric analysis of coal as follows: C=81.95%, H2 = 4.63%, S=0.96%, N2=1.3%, O2=5.75%, Ash=6.09%, Moisture = 3.05%   Using ash and moisture free analysis. Determine the; theoretical air fuel ratio:

The 3d printing approach shown below is fused deposition modelling (FDM), where feedstock polymer is fed into the heated printer nozzle and deposited onto the platform to form the final object in the desired geometry. Which of the polymers below are suitable for this process and what nozzle temperature should be used for that material? (This question has more than one correct answer) Material spool Heater element Object/Model * Nozzle Build platform

Pour point depressants keep oil from forming wax particles under temperature operation. Select one: a. Mild b. Warm c. Hot d. Cold

What are the fluid properties of kerosene at 20 degrees Celsius? Need: Pressure ____ kPa g Density ____ kg/m^3 Viscosity ____ cP Vapor Pressure ____ kPa a Critical Pressure ____ kPa a

For an application of high strength components including gears cams and rollers the desired properties in a plastic would be high tensile and impact strength, stability at high temperature, and machine ability. Potential materials which are suitable for these applications are nylon phenolics, TFE filled acetals, PET, and poly carbonate. True or false.

The primary difference between these non-road (off road) types of diesel fuel is one contains a red dye and one does not. Otherwise the two diesel fuels are relatively identical.  In some states there may be a higher level of sulfur in the off road diesel.  From a regulatory perspective, the off road diesel tank is not regulated and is not required to have the leak detection, spill prevention or overfill prevention that a regulated tank is.  Why is regular diesel fuel regulated (underground storage tanks) and off-road not regulated?

Select a conventional ICE (Internal Combustion Engine) passenger car from the market. Convert the ICE powertrain to an electric powertrain using the structural and performance parameters of the vehicle by calculating the electric motor shaft power, torque and speed, sketching the required graphs of the vehicle performance, selecting a proper gearbox ratio, analysing the gradeability performance of the car, selecting a battery pack and define battery voltage, current and energy capacity (Give thereasons of your selection), and defining the performance and energy consumption of the car for a specific drive cycle (calculate the cost of the drive considering the price of electricity too).