Logic Gates Questions and Answers
1. Explain what is a combinational circuit? In a combinational circuit, the output depends upon present input(s) only i.e, not dependant on the previous input(s). The combinational circuit has no…
Pitot Tube Working Principle
Pitot Tube measures the difference between total pressure and static pressure and it is converted into a proportional flow rate.
Difficulties with Thermocouples for Temperature Measurement
The thermocouple is a simple, widely used component for measuring temperature. Thermocouple Theory A thermocouple, shown in Below Figure, consists of two wires of dissimilar metals joined together at one…
Thermocouple Temperature Measurement Errors
What are the major sources of error in a Thermocouple (TC) measurement? Basically a TC behaves in a very predictable manner – it either works or it does not work.…
Proximity switches Circuit Diagram Operation
A proximity switch is one detecting the proximity (closeness) of some object. By definition, these switches are non-contact sensors, using magnetic, electric, or optical means to sense the proximity of objects. A…
Pushbutton switches and Types of Switches
A hand switch / Pushbutton switch is exactly what the name implies: an electrical switch actuated by a person’s hand motion. These may take the form of toggle, pushbutton, rotary, pull-chain,…
Basics of Cable Shields
shield is a metallic covering enclosing an insulated conductor or group of conductors. Though sometimes similar in appearance, shields for electronic and power cables perform very different functions. Electronic cable shields…
Types of Orifice Plates & Orifice Plate Tappings
Orifice plate pressure tappings are used to allow the transmitter to tap into the pipe to measure high and low-pressure sides of flow.
Basic Principles of Electricity
Electricity Electricity, simply put, is the flow of electric current along a conductor. This electric current takes the form of free electrons that transfer from one atom to the next. Thus,…
Deluge Valve Working Principle
What is a Deluge Valve ? Deluge Valves are used in conditions that require for quick application of large volumes of water and, for that reason, are often integral components in…
