In an installation, the pump house and the water tower are 3miles apart. What is the safe method to start and stop the pump using a level sensor/float switch? Can the land telephone line be used? Can it be done by radio wave? Is there any other better method? Can the same method be used to monitor
Category Archives: Aerospace
Level Indicator Approvals UL Or FM
Dear Crew,
We have a diesel tank for our fire protection system, we are looking for a level indicator in order to replace the plastic pipe that we already have installed. We are looking for a level indicator which has the UL or FM approval but the suppliers have informed us that this approv
Increasing Voltage
In one of my projects, voltage between earth and neutral is 0.01volt. When the load is given (ie when lights are in ON position), the voltage between earth and neutral is gradually increasing up to about 25-30volts. Kindly inform me what will be the reasons.
The other case is when neutral f
Car of the Future?
OK how about this, This car is aerodynamic having been designed in a wind tunnel. Seats 4 people comfortably with upholstered seats, front seats can recline to make double beds. Steering column flattens out and is bent to attach to steering wheel making a safety 'net' in case of a collision. Th
CO2
Dear friends
I would like to ask one confused doubt to you..why we are using co2 as shield gas for mag/mig weld. Is not affect the arc of weld. This is arc also some kind of fire and heat...But same co2 we are using for fire extingusher and for noych cooling also...Please answer for this.
What Would Happen If One Jet Engine Failed
What would happen if one jet engine failed while flying in a commercial aircraft at approximately 30,000 - 40,000 ft? Would the plane lose altitude? Would the plane immediately yaw? Would it definately be noticeable?
Lost Buttons
We have had discussions about socks disappearing into Black Holes and other such esoteric mysteries, but I have yet to encounter a discussion of a major frustration I have puzzled over for years.
Why do some of my shirts shed buttons randomly, and others maintain their buttons pristinely for all
Star Delta
I have a problem in air compressor motor 20hp.The motor having star delta stater but the motor did not run in star. In delta the motor is running what is the problem? The stater control wiring is ok as per drawing. With out connect the motor the stater is working as per timings, when the motor is co
Water Mix Petrol In My Petrol Pump
Dear Sirs,
I am a dealer of Hindustan Petrolium Corporate Limited. We want to water mix petrol in my petrol pump. What the reson, please tell me reson.
Tempering Effects After Quenching and Normalizing
Dear All,
What is difference (technical,main purpose,mechanical properties etc) between tempering effects after quenching and tempering effects after normalizing?
Maximum Power Carrying Capacity
Maximum power carrying capacity of 15 KV tranxmission line on 95 sq. mm AAC conductor and the maximum distance it can travel?
Design of plate rolling machine (3 roller type)
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Design of a Plate Rolling Machine (Three Roller Type)
Hi,
We are holding small fabrication unit in Chenai, we don't afford to buy ready made machine. So we want to fabricated the same in our own (three roll machine).
Capacity: 2500 mm plate width * Max. 16 mm thickness, material to be bend MS.
If some one has design sketch /
Material Selection Book
Dear All,
I want to select proper material for specific service in oil and gas field. I got a book but its not downloadable. Can anybody help me downloading this book?
= Standard handbook of petroleum and natural gas engineering =
By William C. Lyons, Gary J. Plisga
CR4 Tool Bar Missing In Google Chrome Browser
My IE Explorer and Firefox have crashed so I have tried Google Chrome. I can enter print but cannot place any photos or other information in the message box as there is no tool bar. Also I do not appear to have any bypass fiunction? Is anybody using Google Chrome? Is this a common fault or is it my
Are Electric Cars Catching On?
Sometimes a shock means a complete paradigm shift away from business as usual. When it comes to getting from Point A to Point B, electric cars may finally have reached a tipping point where the big automakers embrace them. The change has been triggered by a combination of the economy, ecological iss
Honda Segues from Segway
Honda has unveiled its own personal mobility device to rival the Segway, now used by police, park rangers, and the general public. Moving at a top speed of 6K per hour, the U3-X features an omni-directional traction system in a compact, 22 lb frame. The single-wheel people mover uses an inclinomete
Shading Ring
Sir,
I want to know about the shading ring provided in the core of a contractor. What is the function of that shading ring?
Best Project for Kids Opening Day
What is the best project to come up with for a kids opening day ceremony?
Maximum Runs On A Busbar According To Standards
Dear All,
I'm interested to know the sizes & max runs for Al & Cu busbar. To the best of my knowledge only 4 runs allowed.
Also various sizes of bus bar available in the market. Are they according to standards?
Also current rating as per size & runs?