Answer / guest

The dissecting microscope allows you to view 3D images up
to 50x magnification. It is commonly used in dissections.
The ultracentrifuge spins liquids and seperates the
contents by their density, microdissection instruments are
used to manipulate microscopic organelles (such as
transferring nuclei), and electron microscopes can magnify
an image up to 250,000x and are used to see microscopic
details.

Is there any temperature compenasation for the air flow from FD fan & SA fans which supplies air to the Boiler?

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tell me the field & lab calibration procedure step by step with diagram of pressure gauge, pressure switch, pressure transmitter, temperature switch, level switch, flow switch, flow transmitter, temperature transmitter, temperature indicator, flow indicator, level indicator, control valve, thermocouple, pressure indicator (digital & analogue),

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What is procedure on mmwc in to tph

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hi! i want to know about mpse exam.

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The DCS has the following signal type:

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please explain about actuator action? direct action & return action ?

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How to check loadcell working or notworking

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Explain the combusion chamber

0 Answers   IFFCO,

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I heard that we can use flow transmitter for level measurment also hw it is?

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Why boiler chimney area  oxyden sensor fixing? 

0 Answers   NTPC,

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Q1: Consider part of a control loop, which excludes the transmitter, consisting of a process, a controller and a control valve which may be represented by two dead times of 0.5 min each and three exponential lags of 0.8 min., 1.0 min. and 1.5 min. respectively. We wish to express this system as an overall first order plus dead time (FOPLD) model ie gain, time constant and process dead time. (We will see later that this is often done, to simplify controller tuning). For this exercise, gain is considered to be 1.0. (A) If the transmitter is a flow transmitter whose behaviour can be described by a dead time of 0.2 min. and an exponential lag of 0.5 min. in terms of the overall dead time and overall first order lag how can the system behaviour be approximated ? Overall dead time = Overall time constant = (B) If the transmitter is a temperature transmitter with a temperature sensor in a protecting well whose behaviour can be described by a dead time of 0.7 min. and an exponential lag of 15 min. how can the overall system behaviour be approximated now? Overall dead time = Overall time constant =

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is motorized valve closed when power shutoff?

0 Answers   Unilever,

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