20+ Maersk Interview Questions and Answers

The hydraulic pump is responsible for generating the flow of hydraulic fluid in a hydraulic circuit.

• The hydraulic pump converts mechanical energy into hydraulic energy.

• It creates the pressure needed to move the hydraulic fluid through the circuit.

• The pump provides the force necessary to operate hydraulic actuators, such as cylinders or motors.

• It ensures the proper functioning of the hydraulic system by maintaining a consistent flow of fluid.

• Examples of hydraulic pumps include...read more

Different types of bearings used in mechanical applications include ball bearings, roller bearings, plain bearings, and fluid bearings.

• Ball bearings: used for low friction applications, commonly found in wheels and conveyor belts

• Roller bearings: used for heavy radial loads, commonly found in automotive applications

• Plain bearings: simple design with no rolling elements, commonly used in sliding applications

• Fluid bearings: use a thin layer of liquid or gas to support the load, ...read more

Hydraulic valves control the flow and pressure of hydraulic fluid in a system, with various types for different applications.

• Directional control valves: control the direction of fluid flow in a hydraulic system

• Pressure control valves: regulate the pressure of the hydraulic fluid

• Flow control valves: manage the flow rate of the hydraulic fluid

• Check valves: allow fluid flow in one direction only

• Relief valves: protect the system from overpressure by releasing excess fluid

• Proporti...read more

Second and third angle projections are not used in engineering drawings due to standardization and simplicity.

• First angle projection is the standard method used in engineering drawings worldwide.

• Second and third angle projections are less common and can lead to confusion for those not familiar with them.

• Using multiple projection methods can complicate the design process and increase the likelihood of errors.

• Standardization helps ensure clear communication and understanding am...read more

Types of bolts and nuts include hex bolts, carriage bolts, and wing nuts. Pitch in bolts refers to the distance between threads.

• Types of bolts: hex bolts, carriage bolts, eye bolts, etc.

• Types of nuts: hex nuts, wing nuts, lock nuts, etc.

• Pitch in bolts refers to the distance between threads on the bolt.

• Pitch is measured in threads per inch (TPI) or millimeters (mm).

Different types of views in engineering drawings include orthographic, isometric, and perspective views.

• Orthographic views show the object from different angles (top, front, side)

• Isometric views show the object in 3D with all three dimensions equally foreshortened

• Perspective views show the object as it appears to the eye with depth and foreshortening

Hydraulic valves consist of components such as valve body, spool, actuator, and control mechanism.

• Valve body: main housing that contains the internal components of the valve

• Spool: moves within the valve body to control the flow of hydraulic fluid

• Actuator: component that converts hydraulic pressure into mechanical motion

• Control mechanism: regulates the operation of the valve

A capacitor stores electrical energy and releases it when needed.

• Capacitors are used to filter out noise and stabilize voltage in power supplies.

• They are also used in timing circuits, oscillators, and filters.

• Capacitors can be polarized or non-polarized, and have different capacitance values.

• They are commonly found in electronic devices such as TVs, radios, and computers.

The standard voltage used in Zambia for boomers is 400 volts.

• The standard voltage for boomers in Zambia is 400 volts.

• This voltage is commonly used for electrical equipment and machinery.

• It is important to ensure that boomers are compatible with this voltage before use.

A motor is a device that converts electrical energy into mechanical energy to produce motion.

• Motors work on the principle of electromagnetic induction.

• They consist of a rotor, stator, and commutator.

• The rotor rotates due to the interaction between the magnetic field and the current flowing through the stator.

• Examples include electric motors used in household appliances and industrial machinery.

• Types of motors include AC motors, DC motors, and stepper motors.

Diagnosing machine problems involves thorough inspection, testing, and analysis to identify issues and determine appropriate solutions.

• Conduct a visual inspection of the machine to identify any obvious issues such as loose connections or damaged components

• Use diagnostic tools such as multimeters, oscilloscopes, and pressure gauges to test various components and systems

• Refer to equipment manuals and schematics to understand the machine's operation and identify potential proble...read more

Engineering drawings can be categorized into different types based on their purpose and content.

• Types of engineering drawings include assembly drawings, detail drawings, schematic diagrams, and blueprints.

• Assembly drawings show how different parts fit together to create a final product.

• Detail drawings provide specific dimensions and specifications for individual components.

• Schematic diagrams illustrate the electrical or mechanical connections between components.

• Blueprints are...read more

Stress and strain curve shows the relationship between stress (force applied) and strain (resulting deformation) in a material.

• Stress is plotted on the y-axis and strain on the x-axis.

• The curve typically consists of three regions: elastic deformation, plastic deformation, and fracture.

• Elastic deformation is reversible, plastic deformation is permanent, and fracture is the point at which the material breaks.

• Materials have different stress-strain curves based on their propertie...read more

Active Directory is a Microsoft service that manages network resources and user accounts.

• Active Directory is used to authenticate and authorize users and computers in a network.

• It allows administrators to manage and control access to network resources.

• Active Directory stores information about users, groups, computers, and other network objects.

• It provides a hierarchical structure for organizing network resources.

• Active Directory is commonly used in enterprise environments.

• Exa...read more

The default protocol used in directory services is LDAP.

• LDAP stands for Lightweight Directory Access Protocol.

• It is used to access and manage directory information.

• LDAP is commonly used in enterprise environments for authentication and authorization.

• Examples of directory services that use LDAP include Microsoft Active Directory and OpenLDAP.

7QC tools are used for quality control and process improvement in compliance analysis.

• Check sheets

• Pareto charts

• Cause-and-effect diagrams

• Histograms

• Scatter diagrams

• Control charts

• Flowcharts

Pumps are mechanical devices used to move fluids by creating pressure.

• Pumps work by converting mechanical energy into fluid energy.

• They use impellers or rotors to create centrifugal force or positive displacement to move fluids.

• Different types of pumps include centrifugal pumps, positive displacement pumps, and reciprocating pumps.

• Examples of pumps include water pumps, fuel pumps, and hydraulic pumps.

GD&T is a system of symbols and standards used to communicate engineering design and manufacturing requirements.

• GD&T stands for Geometric Dimensioning and Tolerancing

• It is used to define the allowable variation in form, size, orientation, and location of features on a part

• It ensures that parts are manufactured to the correct specifications and fit together properly

• GD&T symbols include straightness, flatness, circularity, cylindricity, perpendicularity, parallelism, and positi...read more

Pump is used to move fluid from one place to another, while turbine converts fluid energy into mechanical energy.

• Pump increases the pressure of a fluid and moves it from one location to another.

• Turbine converts the kinetic energy of a moving fluid into mechanical energy.

• Pumps are commonly used in industries for fluid transfer, while turbines are used in power generation.

• Examples of pumps include centrifugal pumps and diaphragm pumps, while examples of turbines include steam t...read more

Oops concepts are fundamental principles of object-oriented programming.

• Inheritance: Allows a class to inherit properties and behavior from another class. Example: class Dog extends Animal.

• Encapsulation: Bundling data and methods that operate on the data into a single unit. Example: private variables with public getter and setter methods.

• Polymorphism: Ability of a single function or method to operate on different types of data. Example: method overloading or overriding.

• Abstra...read more