Is 78% a good mark?

Is 78% a good mark? If you know you did your best, then 78 is your best grade. For instance, a mark of 78/100 (78%) would qualify for a first class qualification at a number of universities, but might correlate to a B grade in a GCSE exam. Is 75 a bad grade? The average […]

What are 3 main roles of an engineer?

What are 3 main roles of an engineer? Engineers, as practitioners of engineering, are professionals who invent, design, analyze, build and test machines, complex systems, structures, gadgets and materials to fulfill functional objectives and requirements while considering the limitations imposed by practicality, regulation, safety and cost. What are your top 3 qualities of a sustainable […]

What are analog sensors?

What are analog sensors? There are different types of sensors that produce continuous analog output signal and these sensors are analog sensors. So, the Analogue sensor senses the external parameters (wind speed, solar radiation, light intensity, etc.) and gives analog voltage as an output. How does an analog sensor work? Inductive linear analog sensors work […]

What is true regarding SDS and labels?

What is true regarding SDS and labels? The safety Data Sheet has all the information related to any chemical being carried from the chemical factory to the market. And the label is attached to the chemical container, with specific information. The SDS is being provided together with the chemical container. And the label is pasted […]

Is hydrogen a homogeneous or heterogeneous mixture?

Is hydrogen a homogeneous or heterogeneous mixture? sand and salt: heterogeneous; salt water: homogeneous; pure water: compound; tossed salad: heterogeneous; hydrogen: element; unfiltered air: homogeneous; an apple: heterogeneous; granite: heterogeneous; iron: element; iron with rust: heterogeneous; nitric acid: compound; wood: heterogeneous. Is ammonia a pure substance or a mixture? Pure Substances Pure Substance Element or […]

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