Answer / vishnudev v

In skin type tc thermowell is not used

Lux meter is the measuring device to measure the lux level of lighting fixture. in industrial sector two types of lighting fixture is being used as street lighting purpose 1. HPSV (Sodium) and 2. HPMV (Mercury). HPMV having white light which is an combination of red, blue and yellow colour, while HPSV haivng Yellow lighting. in HPSV red & blue colour will be absent. during measurement of the lux level of HPSV and HPMV fixture. 1. Lux meter can measure the actual lux level of both fixture? 2. or it will show false reading for HPSV fixture light as it has only yellow light present. please give me answer

0 Answers   Ace Info,

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Im working in a shopping center, it is also hotel and office building, two towers exactly and someone is proposing a PLC control for the HVAC system, but Im thinking of a DDC control system. in this case what is the difference between PLC and DDC control?

1 Answers  

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if we have 380 KVA DG. how to calculate Power Factor. With detailed formula

1 Answers  

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If the average power during generation is zero, why do the analog meters have + and - ?

1 Answers   Siemens,

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What is the difference b/w EMF, voltage & potential difference?

1 Answers  

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please can anyone tell me in detail, what's mean by open loop and close loop?

6 Answers  

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why are use only 4 to 20ma. signal.

9 Answers   Otsuka,

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What happen if I install my pressure transmitter below the elevation of pipe in natural gas service?

0 Answers  

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WHICH IS BEST INSTRUMENTATION OR ELECTRICAL ENGG?

3 Answers   SAS,

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What do you need to consider when installing a flowmeter

2 Answers  

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in valve is constructed as per SME B 16.34, then which standard is used for fire testing of valve?.

0 Answers  

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Draw a wheatstone bridge circuit showing supply, meter and 3 wire RTD connection

0 Answers   CCIE,

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