What are the hazards of soldering? Soldering with lead (or other metals used in soldering) can produce dust and fumes that are hazardous. In addition, using flux containing rosin produces solder fumes that, if inhaled, can result in occupational asthma or worsen existing asthmatic conditions; as well as cause eye and upper respiratory tract irritation. […]
How many wires can be in a conduit chart?
What are the responsibilities of the US Fish and Wildlife Service?
What are the responsibilities of the US Fish and Wildlife Service? Our Responsibilities Protect and recover threatened and endangered species; Monitor and manage migratory birds; Restore nationally significant fisheries; Enforce federal wildlife laws and regulate international wildlife trade; Conserve and restore fish and wildlife habitat such as wetlands; Which of the following is the most […]
Is x2 6x 4 0 a quadratic equation?
What is recrystallization and grain growth?
What is recrystallization and grain growth? Recrystallization is a process by which deformed grains are replaced by a new set of defect-free grains that nucleate and grow until the original grains have been entirely consumed. How does grain size affect diffusion? This happens because the relative diffusion coefficient is lower than in Case 2, so […]
What is the cross linked polymer obtained by the polymerisation of phenol and formaldehyde?
What is the cross linked polymer obtained by the polymerisation of phenol and formaldehyde? There are two main production methods. One reacts phenol and formaldehyde directly to produce a thermosetting network polymer, while the other restricts the formaldehyde to produce a prepolymer known as volcano which can be moulded and then cured with the addition […]
What do solar flares and prominences have in common?
What do solar flares and prominences have in common? A prominence is a bright, relatively dense, and relatively cool arched cloud of ionized gas in the chromosphere and corona of the Sun. A solar flare is a sudden, brief (typically lasting only a few minutes), and explosive release of solar magnetic energy that heats and […]
What is meaning of this sign?
What is meaning of this sign? any object, action, event, pattern, etc., that conveys a meaning. a conventional or arbitrary mark, figure, or symbol used as an abbreviation for the word or words it represents. a motion or gesture used to express or convey an idea, command, decision, etc.: Her nod was a sign that […]
What is the function of a function generator?
What is the function of a function generator? A function generator is usually a piece of electronic test equipment or software used to generate different types of electrical waveforms over a wide range of frequencies. Some of the most common waveforms produced by the function generator are the sine wave , square wave, triangular wave […]
How do we measure the viscosity of a liquid?
How do we measure the viscosity of a liquid? Ways to Measure Viscosity Capillary Viscometer. The earliest methods for measuring viscosity were based on using capillary tubes and measuring the time it took for a volume of liquid to pass through the length of the tube. Zahn Cup. Falling Sphere Viscometer. Vibrational Viscometer. Rotational Viscometer. […]