How do we need to prepare for the future?

a) To increase safety in energy plants?

b) To achieve sustainable development?

The following are related to wastewater treatment: a What is the main purpose of the primary, secondary and treatment facility? b. What is the percentage BOD removal in each of the primary and secondary treatment? c.

This building has a metal roof. What type of metal is it made out of?

Health Maintenance Organizations (HMOs) are the new model for providing medical care. Criticisms of HMOs include all of the following except: a. big salaries for administrators. b. overemphasis on profit instead of care. c.

An airflow of 1,000 L/s flows through a round sheet metal duct that is 300 mm in diameter and 100 m long. The air temperature is 12 C and the pressure is atmospheric. Determine the friction pressure drop (Pa). Use Equation 3.

The intake and exhaust processes are not considered in the p-V diagram of Otto cycle. a) true b) false

Work done by a system during a process can be considered as a property of the system. a) True b) False

When the compression process is non-quasi-equilibrium, the molecules before the piston face cannot escape fast enough, forming a high-pressure region in front of the piston. It takes more work to move the piston against this high-pressure region.

hypothetical A-B alloy of composition 40 wt% B-60 wt% A at some temperature is found to consist of mass fractions of 0.66 and 0.34 for the α and β phases, respectively.

10. Which of these requires a wheel alignment after replacement? A. Struts B. Shocks C. Both

What is the definition of diameter pitch?