1. Explain how different types of valve work and their applications (globe, diaphragm, pinch, gate, eccentric plud, butterfly and ball). 2. Explain how RTD and Infrared temperature sensors work? Advantage and disadvantages of each type? Their applications? 3. Explain how orifice and electromagnetic flowmeter work?

Which set of characteristics best describes igneous rock? a) largest type of rock, made of organic matter, hardest type of rock b) least abundant type of rock, made of other rocks, made mostly of minerals c) found on all continents, contains wavy bands of stripes, contains fossils d) most abundant type in earth's crust, made of magma/lava, contains no fossils

Ineed ! i have no clue how to do this problem.

What is the average rate of the reaction between 10 and 20 s?