What is the Vmax in the absence of inhibitor? (a) In the absence of inhibitor, Vmax is 47.6 μmol minute-1, and KM is 1.1 × 10-5 M. In the presence of inhibitor, Vmax is the same, and the apparent KM is 3.1 × 10-5 M. How are the kinetics of an enzyme catalyzed reaction affected […]
Why is it important to provide a means of venting gases from the mold cavity?
Why is it important to provide a means of venting gases from the mold cavity? Proper mold venting is essential for producing quality parts. During the molding process, the air contained in the mold needs a way to escape, otherwise the melt will compress and trap that air in the cavity. What is venting in […]
Is it easy to replace a rear derailleur?
Is it easy to replace a rear derailleur? Believe it or not, it’s not difficult to replace the rear derailleur yourself. Unscrew the derailleur from the derailleur hanger by inserting a hex wrench and turning counter-clockwise. The derailleur will now come away from the hanger. Remove the derailleur cable by loosening the hex bolt on […]
How do you identify process improvements?
How do you identify process improvements? 4 Steps for an Effective Business Process Improvement Cycle Identify the need for change: The first step in the BPI process is to identify the need for change. Analyze current process: Once you have decided which process you are going to improve you need analyze the current procedure. Obtain […]
What process is spot welding?
What process is spot welding? Spot welding (also known as resistance spot welding) is a resistance welding process. This welding process is used primarily for welding two or more metal sheets together by applying pressure and heat from an electric current to the weld area. What is hold time in spot welding? Hold time is […]
What type of magnet attracts iron?
What type of magnet attracts iron? Ferromagnetic materials such as iron, nickel and cobalt are therefore attracted to magnets, as well as rare-earth metals like gadolinium, neodymium and samarium. Can a magnet attract iron? Magnetic Field, Magnetic Field, 1) When two magnets are brought near each other, like poles repel; opposite poles attract. 2) When […]
What is Fe2O3 xH2O?
What is Fe2O3 xH2O? Fe2O3. xH2O is usually called hydrated ferric Oxide. It is a hydrated crystal. When Ferrous ion forms an ionic bond with Oxygen, it is called Ferrous Oxide. What are the conditions required for rusting? Rusting is an oxidation reaction. The iron reacts with water and oxygen to form hydrated iron(III) oxide, […]
What is ductile and brittle failure?
What is ductile and brittle failure? Brittle Fracture involves fracture without any appreciable plastic deformation (i.e. energy absorption). Ductile Fracture in the converse and involves large plastic deformation before separation. The difference between brittle and ductile fracture is illustrated in figures 1 and 2. What type of failure is exhibited by a brittle material behave […]
What type of work do construction workers do?
What type of work do construction workers do? Construction workers (also known as construction laborers) work on construction sites. They are responsible for a number of on-site tasks, such as removing debris, erecting scaffolding, loading and unloading building materials, and assisting with operating heavy equipment. What is the work environment like for a construction worker? […]
What is the latent heat of vaporization for water latent heat?
What is the latent heat of vaporization for water latent heat? The heat of vaporization of water is about 2,260 kJ/kg, which is equal to 40.8 kJ/mol. The vaporization is the opposite process of condensation. The heat of condensation is defined as the heat released when one mole of the substance condenses at its boiling […]