Dilip Buildcon Mechanical Engineer Interview Questions and Answers

First angle projection is a method of creating engineering drawings where the object is projected onto a plane in front of it.

• In first angle projection, the object is placed in the first quadrant of the viewing plane.

• The object is projected onto the plane from the perspective of the object looking towards the plane.

• Commonly used in Europe and Asia, while third angle projection is more common in the United States.

• Helps ...read more

The first law of thermodynamics states that energy cannot be created or destroyed, only transferred or converted.

• Energy can be transferred between systems or converted from one form to another.

• The total energy in a closed system remains constant.

• Mathematically expressed as: ΔU = Q - W, where ΔU is the change in internal energy, Q is heat added to the system, and W is work done by the system.

• Example: When a gas is compr...read more

Entropy is a measure of disorder or randomness in a system.

• Entropy is a thermodynamic property that increases with the amount of disorder in a system.

• It is a measure of the unavailable energy in a closed thermodynamic system that is also usually considered to be a measure of the system's disorder.

• Entropy can be thought of as a measure of the number of specific ways in which a system may be arranged, often interpreted a...read more

A lathe is a machine tool that rotates a workpiece about an axis of rotation to perform various operations such as cutting, sanding, drilling, knurling, or deformation.

• Lathe is used to shape and cut materials such as wood, metal, and plastic.

• It rotates the workpiece on its axis and a cutting tool is applied to the workpiece to remove material.

• Lathe can perform various operations such as turning, facing, drilling, borin...read more

Boiler drum is a cylindrical container which is used to store water and steam produced in a boiler.

• It is a vital component of a boiler system.

• It is usually made of steel and is located at the top of the boiler.

• It acts as a reservoir of water/steam and helps to separate steam from water.

• It also helps to regulate the pressure and temperature of the steam.

• The level of water in the drum is maintained by a feedwater control...read more