What is a certified professional engineer? What is a PE license? A Professional Engineering license is a certification that demonstrates an engineer’s adherence to a higher level of standards. Prior to 1907, proof of skill and proficiency was not required for individuals to work as engineers, thus putting public welfare, health, and safety at risk. […]
What are the characteristics of Python dictionaries?
What are the characteristics of Python dictionaries? Each key is separated from its value by a colon (:), the items are separated by commas, and the whole thing is enclosed in curly braces. An empty dictionary without any items is written with just two curly braces, like this: {}. Keys are unique within a dictionary […]
What are the potential hazards relating to materials handling injuries OSHA?
What are the potential hazards relating to materials handling injuries OSHA? The hazards associated with materials handling include: • the improper use of equipment, • the accumulation of materials and clutter, • unsafe conditions of materials and containers, • toxic and flammable materials, • the weight of materials being handled, • binding ties or other […]
What is quality control definition?
What is quality control definition? Quality control involves testing of units and determining if they are within the specifications for the final product. The purpose of the testing is to determine any needs for corrective actions in the manufacturing process. Good quality control helps companies meet consumer demands for better products. What does TQM mean? […]
How the capacity of hydraulic accumulator is calculated?
How the capacity of hydraulic accumulator is calculated? Hydraulic Accumulators operate on the principles of Boyle’s Law of Gases! The basic relationship between the pressure and the volume of gas is expressed by the equation: P1V1n= P2V2n, where P1 and P2 are the initial and final gas pressures and V1 and V2 are the corresponding […]
What is a current that does not reverse direction?
What is a current that does not reverse direction? direct current. current that does not reverse direction is called. magnetic poles. When current in a circuit reverses its direction in a regular pattern it is called? Electricity and Magnetism Question Answer Current that reverses direction in a regular pattern is called ____. alternating current The […]
How do you calculate the number of tubes in tube and shell heat exchanger?
CAN 1000 amps kill you?
CAN 1000 amps kill you? Any electrical device used on a house wiring circuit can, under certain conditions, transmit a fatal current. While any amount of current over 10 milliamps (0.01 amp) is capable of producing painful to severe shock, currents between 100 and 200 mA (0.1 to 0.2 amp) are lethal. How many volts […]
How do polymers degrade from UV attack?
How do polymers degrade from UV attack? UV radiation causes photooxidative degradation which results in breaking of the polymer chains, produces radicals and reduces the molecular weight, causing deterioration of mechanical properties and leading to useless materials, after an unpredictable time. What is oxidative degradation of polymers? Oxidative degradation involves the disintegration of macromolecules by […]
What is a drawdown test?
What is a drawdown test? A pressure drawdown test is simply a series of bottom-hole pressure measurements made during a period of flow at constant production rate. Usually the well is closed prior to the flow test for a period of time sufficient to allow the pressure to stabilize throughout the formation, i.e., to reach […]