20+ Interview Questions and Answers

Gear nomenclature refers to the standardized system of naming and identifying gears.

• Gear nomenclature includes terms such as pitch diameter, face width, and pressure angle.

• It is important for engineers to understand gear nomenclature in order to properly design and manufacture gears.

• The AGMA (American Gear Manufacturers Association) provides guidelines for gear nomenclature.

• Examples of gear types include spur gears, helical gears, bevel gears, and worm gears.

Component preheating before heat treatment is necessary to prevent thermal shock and ensure uniform heating.

• Preheating helps to prevent thermal shock, which can lead to cracking or distortion of the component during heat treatment.

• It ensures uniform heating of the component, which is essential for achieving the desired metallurgical properties.

• Preheating can also help to reduce the overall processing time by allowing for faster and more consistent heat treatment.

• Examples: Pre...read more

Gears are mechanical components that transmit power and motion between rotating shafts. There are various types of gears.

• Spur gears

• Helical gears

• Bevel gears

• Worm gears

• Planetary gears

• Rack and pinion gears

Instructions are written or spoken directions for carrying out a task or activity.

• Instructions provide guidance and clarity on how to perform a task or activity.

• They can be written or spoken, and may include diagrams or illustrations.

• Instructions are used in various fields, such as manufacturing, construction, and cooking.

• They can also be used for assembling products, operating machinery, or performing medical procedures.

QMS stands for Quality Management System.

• QMS is a set of policies, processes, and procedures that ensure quality in products or services.

• It helps in meeting customer requirements and regulatory standards.

• QMS includes activities like quality planning, quality control, quality assurance, and quality improvement.

• ISO 9001 is a popular QMS standard used by organizations worldwide.

Gears transmit power and motion between rotating shafts. They change torque, speed, and direction of rotation.

• Gears transmit power and motion between rotating shafts

• They change torque, speed, and direction of rotation

• They can increase or decrease speed and torque

• They can change the direction of rotation

• Examples include spur gears, bevel gears, worm gears, and helical gears

A forward reverse motor circuit diagram is used to control the direction of rotation of a motor.

• The circuit typically includes a power supply, motor, forward and reverse switches, and possibly a control relay.

• When the forward switch is activated, the motor rotates in one direction, and when the reverse switch is activated, the motor rotates in the opposite direction.

• The control relay may be used to prevent both the forward and reverse switches from being activated simultaneou...read more

The company manufactures a variety of products.

• The company produces consumer electronics such as smartphones and laptops.

• They also manufacture home appliances like refrigerators and washing machines.

• In addition, the company produces industrial equipment such as generators and air compressors.

• The company also has a division that produces automotive parts like brakes and suspension systems.

Verification ensures that the product is built according to the requirements while validation ensures that the product meets the customer's needs.

• Verification checks if the product is built correctly while validation checks if the right product is built.

• Verification is a process of evaluating documents, plans, code, and specifications while validation is a process of evaluating the final product.

• Verification is done before validation.

• Example of verification: reviewing a softw...read more

ISO is a generic standard for quality management while IATF is a specific standard for automotive industry.

• ISO focuses on customer satisfaction and continuous improvement while IATF focuses on specific requirements for automotive industry

• IATF requires compliance with ISO 9001 and adds additional requirements specific to automotive industry

• IATF certification is required for automotive suppliers to do business with major automotive manufacturers

• ISO certification is applicable t...read more

Different types of gears are used in various mechanical systems to transmit motion and power.

• Spur gears are the most common type and are used for parallel shafts.

• Helical gears have angled teeth for smoother and quieter operation.

• Bevel gears are used to change the direction of rotation between intersecting shafts.

• Worm gears are used for high reduction ratios and are self-locking.

• Planetary gears are used in gearboxes for speed reduction and torque multiplication.

Star delta circuit diagram is a method used to reduce starting current in induction motors.

• Star delta starter is used for starting induction motors

• In star connection, motor windings are connected in a star configuration for reduced voltage during starting

• After a certain time, the windings are switched to a delta configuration for full voltage operation

• This method helps in reducing starting current and mechanical stress on the motor

Thermocouples are temperature sensors that consist of two different metals joined together, generating a voltage proportional to the temperature difference.

• Thermocouples are commonly used in industrial applications for temperature measurement.

• Types of thermocouples include Type K (chromel/alumel), Type J (iron/constantan), and Type T (copper/constantan).

• Each type has a different temperature range and accuracy level.

• Thermocouples are versatile, rugged, and cost-effective tempe...read more

An oxygen probe is a device used to measure the concentration of oxygen in a gas or liquid.

• Oxygen probes typically consist of a sensing element, a reference electrode, and an electrolyte.

• The sensing element generates a voltage signal proportional to the oxygen concentration.

• The reference electrode provides a stable reference voltage for accurate measurements.

• The electrolyte allows oxygen ions to pass through, creating a current flow that is measured.

• Calibration of the oxygen ...read more

FMEA scoring is a method to prioritize risks based on their severity, occurrence, and detection.

• FMEA scoring helps identify high-risk areas that require immediate attention.

• The scoring is based on three factors: severity, occurrence, and detection.

• Each factor is scored on a scale of 1-10, with 10 being the highest risk.

• The scores are multiplied to give a risk priority number (RPN).

• The higher the RPN, the higher the priority for risk mitigation.

• For example, if a failure mode h...read more

Gears are mechanical devices used to transfer motion and power between rotating shafts.

• Types of gears include spur gears, helical gears, bevel gears, worm gears, and rack and pinion gears.

• Spur gears have straight teeth and are used for parallel shafts.

• Helical gears have angled teeth for smoother operation.

• Bevel gears are used to change the direction of rotation.

• Worm gears are used for high reduction ratios.

• Rack and pinion gears convert rotational motion into linear motion.