TARV TECHNOLOGIES Diploma Mechanical Engineer Interview Questions, Process, and Tips

Yes, there are many types of valves including ball, gate, globe, butterfly, check, and needle valves.

• Valves are used to control the flow of fluids or gases in a system.

• Ball valves have a spherical closure unit that allows for quick shut-off.

• Gate valves have a flat closure unit that slides into place to stop flow.

• Globe valves have a spherical closure unit that moves up and down to regulate flow.

• Butterfly valves have a d...read more

Pumps are devices used to move fluids from one place to another. They are classified based on their working principle and application.

• Pumps can be classified as positive displacement pumps and dynamic pumps.

• Positive displacement pumps move a fixed amount of fluid with each stroke or rotation. Examples include reciprocating pumps and rotary pumps.

• Dynamic pumps use velocity to move fluids. Examples include centrifugal pu...read more

Metallic gaskets are used in various industries for high-pressure and high-temperature applications.

• Spiral wound gasket: made of alternating layers of metal and filler material

• Ring joint gasket: used in high-pressure applications, has a metallic ring

• Metal jacketed gasket: consists of a soft filler material enclosed in a metal jacket

• Kammprofile gasket: has a serrated metal core with a soft sealing material

• Corrugated met...read more

RTJ Lens Rings are used in flange connections to provide a seal and prevent leakage.

• RTJ Lens Rings are used in high-pressure and high-temperature applications.

• They are commonly used in industries such as oil and gas, petrochemical, and power generation.

• RTJ Lens Rings provide a reliable and secure seal between flanges, preventing leakage.

• They are designed to withstand extreme conditions and maintain their sealing proper...read more

The hydro test pressure of an equipment connection is the pressure at which the connection is tested for leaks and strength.

• Hydro test pressure is determined based on the design and operating conditions of the equipment.

• It is usually expressed in units of pressure, such as psi or bar.

• The test pressure should be higher than the maximum operating pressure to ensure the connection's integrity.

• The test pressure may vary de...read more

Design pressure multiplied by 1.5

• The question is asking for the value that is 1.5 times the design pressure

• To find the answer, multiply the design pressure by 1.5

• For example, if the design pressure is 100 psi, the answer would be 150 psi

Types of pump defrens

• Centrifugal pumps

• Reciprocating pumps

• Rotary pumps

• Diaphragm pumps

• Gear pumps

• Vane pumps

• Screw pumps

• Peristaltic pumps