Tenneco Group Leader Interview Questions and Answers

Productivity in business refers to the efficiency and effectiveness of the production process.

• Productivity is the measure of output per unit of input.

• It is important for businesses to maximize productivity to increase profits and remain competitive.

• Factors that can affect productivity include technology, employee training, and management practices.

• Examples of productivity measures include units produced per hour, reven...read more

A P-V diagram of a double stage air compressor shows the pressure-volume relationship during compression.

• The diagram consists of two stages of compression.

• The first stage compresses the air from atmospheric pressure to an intermediate pressure.

• The second stage compresses the air from the intermediate pressure to the final pressure.

• The volume decreases as the pressure increases during compression.

• The diagram can be used...read more

A strain gauge is a device used to measure strain or deformation in an object.

• It consists of a thin wire or foil that is attached to the object being measured.

• As the object deforms, the wire or foil also deforms, causing a change in its electrical resistance.

• This change in resistance is measured and used to calculate the amount of strain or deformation in the object.

• Strain gauges are commonly used in engineering and ma...read more

Bearings are used to reduce friction between two moving parts. There are different types of bearings.

• Plain bearings

• Rolling element bearings

• Jewel bearings

• Fluid bearings

• Magnetic bearings

Different types of gears include spur gears, helical gears, bevel gears, worm gears, and rack and pinion gears.

• Spur gears have straight teeth and are the simplest and most common type of gear.

• Helical gears have angled teeth and provide smoother and quieter operation compared to spur gears.

• Bevel gears have cone-shaped teeth and are used to transmit power between intersecting shafts.

• Worm gears consist of a worm and a wor...read more

Pumps are selected based on the required flow rate, head, and fluid properties.

• Determine the required flow rate and head for the application

• Consider the fluid properties such as viscosity, temperature, and corrosiveness

• Select a pump type that is suitable for the application, such as centrifugal, positive displacement, or axial flow

• Choose a pump material that is compatible with the fluid being pumped

• Consider the operati...read more

Boilers are classified based on their design, fuel type, and application.

• Fire-tube boilers

• Water-tube boilers

• Electric boilers

• Gas boilers

• Oil boilers

• Solid fuel boilers

• Combination boilers

• Condensing boilers

• Industrial boilers

• Residential boilers

Threads are helical ridges or grooves on the surface of a cylindrical object. There are different types of threads.

• Unified Thread Standard (UTS)

• Metric Thread Standard

• Pipe Thread Standard

• ACME Thread

• Buttress Thread

• Knuckle Thread

• Square Thread

• Round Thread

Valves are devices used to control the flow of fluids or gases. There are several types of valves used in different applications.

• Gate valve

• Ball valve

• Butterfly valve

• Globe valve

• Check valve

• Diaphragm valve

• Needle valve

• Pressure relief valve

• Safety valve

DCV stands for Directional Control Valve in hydraulics which controls the direction of fluid flow.

• DCV is used to control the direction of fluid flow in hydraulic systems.

• It is a type of valve that directs the flow of fluid to different parts of the system.

• DCV can be manually operated or automated depending on the application.

• Examples of DCV include spool valves, poppet valves, and rotary valves.

• DCV is an important comp...read more

Pressure is the force exerted on a surface per unit area.

• Pressure is a measure of how much force is applied to a given area.

• It is calculated by dividing the force applied by the area over which it is distributed.

• Pressure can be expressed in various units such as pascals, pounds per square inch (psi), or atmospheres.

• Examples of pressure include the air pressure in a tire, the water pressure in a pipe, or the blood press

Strain is the measure of deformation or elongation of a material under stress.

• Strain is a ratio of change in length to the original length of a material.

• It is measured in units of percentage or in terms of length per unit length.

• Strain can be either tensile (stretching) or compressive (shrinking).

Force is a physical quantity that describes the interaction between two objects.

• Force is measured in Newtons (N)

• It can be calculated using the formula F = m x a (force = mass x acceleration)

• There are different types of forces such as gravitational, electromagnetic, and frictional forces

• Force can cause an object to accelerate, change direction, or deform