Tata Chemicals Interview Questions and Answers for Freshers

Drawing a simply supported beam with uniform load distribution in strength of materials.

• Draw a straight line representing the beam.

• Mark the supports at both ends of the beam.

• Draw arrows representing the uniform load distribution on the beam.

• Calculate the reactions at the supports using equations of equilibrium.

• Draw the shear force and bending moment diagrams for the beam.

• Calculate the maximum shear force and bending moment at any point on the beam.

• Use the maximum shear force ...read more

Pressure and velocity compounding are methods used to increase the efficiency of steam turbines.

• Pressure compounding involves dividing the pressure drop across the turbine into smaller stages, each with its own set of moving blades.

• Velocity compounding involves dividing the steam flow into smaller streams, each flowing through a set of fixed blades.

• Both methods increase the efficiency of the turbine by reducing the amount of energy lost to friction and turbulence.

• Examples of ...read more

Normalizing, annealing, and hardening are heat treatment processes used to alter the properties of metals.

• Normalizing involves heating the metal to a temperature above its critical point and then cooling it in air. This process improves the strength and toughness of the metal.

• Annealing involves heating the metal to a specific temperature and then cooling it slowly. This process reduces the hardness and increases the ductility of the metal.

• Hardening involves heating the metal ...read more

Iron-iron carbide diagram is a graphical representation of the phases of iron and carbon at different temperatures and compositions.

• Also known as the Fe-C diagram

• Shows the transformation of iron from ferrite to austenite to pearlite

• Used to determine the microstructure and properties of steel

• Helps in designing heat treatment processes for steel

• Important tool for metallurgists and materials engineers

Efficiency of Rankine cycle formula.

• Efficiency = (Net work output / Heat input)

• Efficiency = (1 - T2/T1)

• T1 is the temperature of steam at the inlet of turbine

• T2 is the temperature of steam at the outlet of turbine

• Net work output = (P1 - P2) * (V2 - V1)

• Heat input = m * (h1 - h2)

• m is the mass flow rate of steam

• h1 is the enthalpy of steam at the inlet of turbine

• h2 is the enthalpy of steam at the outlet of turbine

There are various types of gearboxes used in maintenance fitting, including spur gearboxes, helical gearboxes, bevel gearboxes, and worm gearboxes.

• Spur gearboxes have straight teeth and are commonly used in applications with low to moderate speeds and loads.

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

• Bevel gearboxes are used to transmit power between shafts that are not parallel and are commonly found in applicatio...read more

Misalignment is when two or more parts are not properly aligned. Backless refers to a type of shoe without a back.

• Misalignment can cause wear and tear on machinery and decrease efficiency.

• Examples of misalignment include a crooked belt on a conveyor or a misaligned shaft in a motor.

• Backless shoes are typically sandals or slip-ons that do not have a heel or back portion.

• Backless shoes can be more comfortable in hot weather or for quick trips outside.

Pitch is the distance between two adjacent threads in a screw or bolt.

• Pitch is measured in millimeters or inches.

• It determines the tightness of the screw or bolt.

• Different types of pitch include coarse, fine, and extra fine.

• Pitch is important in alignment as it affects the positioning of rotating machinery.

• Misaligned pitch can cause vibration, noise, and premature wear and tear.