30+ SBT Japan Interview Questions and Answers

DC drive basic diagram consists of power supply, rectifier, chopper, and motor. VFD programming involves setting parameters for speed, torque, and acceleration.

• DC drive diagram includes power supply, rectifier, chopper, and motor

• VFD programming involves setting parameters for speed, torque, and acceleration

• DC drive controls motor speed and direction

• VFD can be programmed using software or keypad

• VFD parameters can be adjusted to optimize motor performance

ACBs and VCBs are circuit breakers used in substations. The type of relay used depends on the specific application.

• ACBs (Air Circuit Breakers) and VCBs (Vacuum Circuit Breakers) are used in substations to protect electrical equipment from damage due to overloads or short circuits.

• ACBs use air as the medium to extinguish the arc, while VCBs use vacuum.

• The type of relay used depends on the specific application, such as overcurrent, differential, or distance protection.

• Examples ...read more

Water pump assembly and disassembly work involves installing and removing components to ensure proper functioning.

• Water pump assembly involves putting together all the components of the pump such as impeller, casing, and bearings.

• Water pump disassembly involves taking apart the pump to inspect and replace any damaged parts.

• Mechanical seal installation is crucial for preventing leaks in the pump.

• Ampular work may involve connecting the pump to electrical components for operatio...read more

CNC setup involves using MDI mode programming and various types of tools for CNC operations.

• CNC setup involves preparing the machine for operation by loading tools, setting work offsets, and running a program.

• MDI mode programming allows manual input of commands to control the machine.

• Different types of tools used in CNC operations include end mills, drills, taps, and inserts.

• Tools are selected based on the material being machined, the desired finish, and the required accuracy...read more

The least count of a vernier caliper is the smallest measurement that can be read on the scale.

• The least count is determined by the number of divisions on the main scale and the vernier scale.

• It is calculated by dividing the smallest division on the main scale by the number of divisions on the vernier scale.

• For example, if the smallest division on the main scale is 0.1 mm and the vernier scale has 10 divisions, the least count would be 0.01 mm.

• The least count allows for more ...read more

Cutting, welding, and grinding are essential processes in metal fabrication to shape and join metal pieces.

• Cutting involves using tools like saws, plasma cutters, or laser cutters to remove material from a metal workpiece.

• Welding is the process of joining two metal pieces together using heat and pressure to create a strong bond.

• Grinding is the process of smoothing and shaping metal surfaces using abrasive tools like grinding wheels or belts.

• These processes are commonly used i...read more

Reconciling GSTR 2A or 2B vs Books

• Reconciling GSTR 2A or 2B involves comparing the data in these forms with the books of accounts to ensure accuracy.

• The method used for reconciliation can vary depending on the organization's processes and systems.

• One common method is to compare the invoice details in GSTR 2A or 2B with the corresponding entries in the books of accounts.

• Discrepancies can be identified and resolved by investigating the reasons behind the differences.

• Reconciliat...read more

DC motor speed control parameters include armature voltage, field current, and mechanical load.

• Armature voltage: controls the speed of the motor by varying the voltage applied to the armature.

• Field current: controls the strength of the magnetic field and thus the speed of the motor.

• Mechanical load: affects the speed of the motor by changing the amount of torque required to turn the motor.

• Other factors include the type of motor, the type of load, and the control method used.

Calculate RM Length against a Selected Size

• Determine the required reinforcement ratio for the selected size

• Calculate the area of steel required based on the selected size and reinforcement ratio

• Use the formula: RM Length = (Area of steel required / Cross-sectional area of one steel bar)

As an Electrical Engineer, my responsibility within the plant includes designing, testing, and maintaining electrical systems to ensure smooth operations.

• Designing electrical systems for optimal plant operations

• Testing and troubleshooting electrical equipment to ensure functionality

• Maintaining electrical systems to prevent downtime and ensure safety

• Collaborating with other engineers and plant personnel to address electrical issues

• Implementing energy efficiency measures to red...read more

A hydraulic pump is a mechanical device that converts mechanical power into hydraulic energy, while a hydraulic valve controls the flow of hydraulic fluid within a hydraulic system.

• Hydraulic pump is used to generate flow of hydraulic fluid in a hydraulic system

• Hydraulic valve is used to control the flow of hydraulic fluid within the system

• Hydraulic pumps can be gear pumps, vane pumps, or piston pumps

• Hydraulic valves can be directional control valves, pressure control valves, ...read more

HP pump assembly work involves assembling high pressure pumps for various industrial applications.

• Assembling high pressure pumps according to specifications

• Testing the pumps for efficiency and functionality

• Installing the pumps in the designated machinery or system

• Performing maintenance and repairs on the pumps as needed

To find gear backlash and calculate gear ratio, measure the distance between gear teeth and use the formula gear ratio = number of teeth on driven gear / number of teeth on driving gear.

• Measure the distance between gear teeth using a feeler gauge or dial indicator.

• Calculate gear backlash by subtracting the measured distance from the ideal distance between gear teeth.

• To calculate gear ratio, use the formula gear ratio = number of teeth on driven gear / number of teeth on drivi...read more

Vector group is a code used to represent the phase displacement and connection type of transformer windings.

• Vector group determines the phase shift between the primary and secondary windings of a transformer.

• It also indicates the connection type of the windings, such as Y-Y, Y-Δ, Δ-Y, or Δ-Δ.

• The vector group code consists of a combination of letters and numbers, such as YNd11 or Dyn11.

• The first letter represents the primary winding connection, the second letter represents the...read more

Basic hydraulic systems use fluid to transmit power and operate machinery.

• Hydraulic systems use a fluid (usually oil) to transmit power

• A pump generates pressure to move the fluid through the system

• Valves control the flow of the fluid to different components

• Cylinders and motors convert the fluid pressure into mechanical work

• Hydraulic systems are commonly used in heavy machinery like excavators and cranes

Gearbox alignment and assembly involves ensuring all components are properly aligned and fitted together for optimal performance.

• Gearbox alignment involves checking the positioning of components such as shafts, bearings, and gears to ensure they are in proper alignment.

• Proper alignment is crucial for smooth operation and to prevent premature wear and damage.

• Gearbox assembly involves putting together all the components in the correct order and ensuring they are securely fasten...read more

Assuring long service requires a positive work environment, fair compensation, growth opportunities, and recognition.

• Create a positive work environment that fosters collaboration and open communication.

• Offer fair compensation and benefits packages to attract and retain top talent.

• Provide growth opportunities through training, mentorship, and career advancement.

• Recognize and reward employees for their contributions and achievements.

• Conduct regular employee engagement surveys t...read more

A measurement gauge used in engineering is typically a micrometer or caliper.

• Common types include micrometers, calipers, rulers, tape measures, and laser distance meters.

• Micrometers are used for precise measurements of small distances, while calipers are versatile for both inside and outside measurements.

• Rulers and tape measures are used for linear measurements, while laser distance meters use laser technology for accurate distance measurements.

The least count of a micrometer is the smallest measurement that can be read on the instrument.

• The least count of a micrometer is typically 0.01mm or 0.001mm.

• It depends on the precision of the instrument.

• For example, a micrometer with a least count of 0.01mm can measure up to two decimal places.

The least count of a vernier caliper is the smallest measurement that can be read on the scale.

• The least count of a vernier caliper is typically 0.02 mm or 0.001 inches.

• It is determined by dividing the smallest division on the main scale by the total number of divisions on the vernier scale.

• For example, if the main scale has divisions of 1 mm and the vernier scale has 50 divisions, the least count would be 0.02 mm.

Asset metrics, ISO, Kaizen, and 5S are all important tools for improving efficiency and productivity in the workplace.

• Asset metrics are measurements used to evaluate the performance of assets, such as equipment or machinery.

• ISO (International Organization for Standardization) is a set of standards that provide guidelines for quality management systems.

• Kaizen is a Japanese term that means continuous improvement. It involves making small, incremental changes to processes to imp...read more

The size of the filter in a hydraulic system depends on the flow rate and pressure requirements of the system.

• The size of the filter is typically measured in microns, with common sizes ranging from 5 to 100 microns.

• The size of the filter should be selected based on the cleanliness requirements of the hydraulic fluid and the flow rate of the system.

• A larger filter size (e.g. 100 microns) will allow for higher flow rates but may not provide as fine filtration as a smaller filte...read more

Three phase IM works on the principle of rotating magnetic field produced by three phase AC supply.

• Three phase AC supply is given to the stator winding which produces a rotating magnetic field.

• The rotor winding is short-circuited and the rotating magnetic field induces a current in it.

• The interaction between the stator and rotor magnetic fields produces torque which rotates the rotor.

• The speed of the rotor is slightly less than the speed of the rotating magnetic field.

• The sli...read more

GST Returns can be filed online through the GST portal by providing the required information and submitting the relevant forms.

• GST Returns can be filed online through the GST portal

• The process involves providing the required information and submitting the relevant forms

• There are different types of GST returns such as GSTR-1, GSTR-3B, GSTR-9, etc.

• GSTR-1 is used to report outward supplies of goods and services

• GSTR-3B is a monthly summary return for reporting the summary of sale...read more

TPM stands for Trusted Platform Module, a hardware-based security feature that provides secure storage and cryptographic functions.

• TPM is a chip or integrated circuit that is used to secure and protect sensitive data on a computer system.

• It provides a secure environment for storing encryption keys, passwords, and digital certificates.

• TPM can be used for various security applications such as disk encryption, secure boot, and secure remote access.

• It ensures the integrity of the...read more

Possible defects found in raw materials include contamination, impurities, incorrect composition, and moisture content.

• Contamination from foreign substances

• Presence of impurities affecting quality

• Incorrect composition leading to product failure

• High moisture content causing degradation

• Physical defects like clumping or discoloration

Controlling inventory levels is crucial for efficient operations and maximizing profits.

• Prevents overstocking and understocking

• Reduces storage costs and waste

• Ensures timely delivery to customers

• Helps in forecasting demand and planning production

• Maximizes profits by minimizing stockouts and markdowns

5S is a methodology used to organize and maintain a clean and efficient workplace.

• 5S stands for Sort, Set in Order, Shine, Standardize, and Sustain.

• Sort involves removing unnecessary items from the workplace.

• Set in Order focuses on arranging necessary items in a logical and efficient manner.

• Shine involves cleaning and maintaining the workplace.

• Standardize establishes consistent processes and procedures.

• Sustain ensures the continued implementation and improvement of the 5S sys...read more

Seiri is a Japanese term that refers to the practice of sorting and organizing items in a systematic manner.

• Seiri is part of the 5S methodology, which aims to improve efficiency and productivity in the workplace.

• It involves removing unnecessary items from the workspace and organizing the remaining items in a logical and accessible manner.

• By implementing seiri, electrical engineers can easily locate tools, equipment, and materials, reducing wasted time and improving workflow.

• F...read more

Types of gears include spur, helical, bevel, worm, rack and pinion. Functions include transmitting motion, changing direction, and increasing or decreasing speed.

• Spur gears: most common type, transmit motion between parallel shafts

• Helical gears: transmit motion and power between parallel or crossed shafts, smoother and quieter operation than spur gears

• Bevel gears: transmit motion between intersecting shafts, used in vehicles and machinery

• Worm gears: transmit motion at right a...read more

Starters in 3-ph Im

• Starters are used to control the starting and stopping of 3-phase induction motors.

• Direct-on-line (DOL) starters are the simplest type of starters.

• Soft starters and variable frequency drives (VFDs) are more advanced types of starters.

• Starters protect the motor from overloading and overheating.

• Starters also provide a means of reversing the motor's direction of rotation.

Seamless tube manufacturing process involves heating a solid billet and piercing it with a mandrel to create a hollow tube.

• The process starts with selecting the appropriate material for the tube.

• The billet is heated to a high temperature and then pierced with a mandrel.

• The tube is then rolled and stretched to achieve the desired dimensions and properties.

• The final step involves cutting the tube to the required length and performing any necessary finishing operations.

• Examples ...read more