Epiroc
Eduzi Academy Interview Questions and Answers
Q1. What are the different types of bearings used in mechanical applications?
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
Q2. What are the different types of hydraulic valves and their applications?
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
Q3. Why are second angle and third angle projections not used in engineering drawings?
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
Q4. What are the types of bolts and nuts, and what is the significance of pitch in bolts?
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).
Q5. What are the different types of views in engineering drawings?
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
Q6. What are the components of hydraulic valves?
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
Q7. Type of Engineering Drawings
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
Q8. 7Qc Tools used
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
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