Pressure Instruments – 20 Common Interview Questions Pressure Instruments 20 Most Common Interview Questions & Answers 1. What is the difference between absolute, gauge, and differential pressure? Absolute Pressure: Measured relative to a perfect vacuum (zero pressure). Gauge Pressure: Measured relative to the local atmospheric pressure. It can be positive...
Orifice Plate Flow Meters – 20 Common Interview Questions Orifice Plate Flow Meters 20 Most Common Interview Questions & Answers 1. What is the basic working principle of an orifice plate flow meter? An orifice plate flow meter operates on Bernoulli’s principle. It consists of a thin plate with a...
What is an ultrasonic flow meter?An ultrasonic flow meter measures the flow rate of a fluid using ultrasound waves. It calculates the flow based on the time difference or frequency shift of the ultrasonic signal. What are the two main types of ultrasonic flow meters? Transit Time (Time-of-Flight) Doppler Type...
1. What is a vortex flow meter? A vortex flow meter measures the flow rate by detecting the vortices shed from a bluff body placed in the flow stream. It uses the Von Kármán effect. 2. What is the principle behind vortex flow meters? Vortex flow meters operate on the...
1. What is the working principle of a Coriolis mass flow meter? Answer:It works on the Coriolis Effect, where a vibrating tube carrying fluid experiences a phase shift or twist proportional to the mass flow rate. The fluid’s inertia causes this deflection. 2. What type of flow does a Coriolis...
✅ Basic Conceptual Questions What is a turbine flow meter and how does it work?A turbine flow meter measures volumetric flow rate using the mechanical motion of a rotor placed in the flow stream. The fluid flow turns the rotor; the rotational speed is proportional to flow rate. What is...
🔥 Basic & Conceptual Questions (1–15) What is temperature and how is it measured in process industries?➤ Temperature is the measure of thermal energy. It is measured using devices like thermocouples, RTDs, thermistors, infrared sensors, etc. Differentiate between temperature and heat.➤ Temperature is a measure of average kinetic energy of...
🔹 1. What is a radar level transmitter? Answer:A radar level transmitter is a non-contact type level measurement device that uses microwave radar signals to measure the level of liquids or solids in a vessel based on the time-of-flight principle. 🔹 2. What is the working principle of a radar...
Control Valve Phenomena Explained An interactive guide to Cavitation, Flashing, and Choked Flow in the Oil & Gas and Process Industries. 1. Introduction to Control Valves Control valves are critical components for regulating fluid flow in industries like oil & gas, chemical processing, and power generation. They act like...