Hitachi Astemo Diploma Trainee Engineer Interview Questions and Answers

Least count is the smallest measurement increment that an instrument can accurately measure.

• It defines the precision of a measuring instrument.

• For a ruler, the least count is typically 1 mm.

• In a vernier caliper, the least count can be 0.02 mm.

• In digital instruments, it can be as small as 0.001 units.

My parents are hardworking individuals who have instilled strong values and a passion for learning in me.

• My father is an engineer, which inspired my interest in technology and problem-solving.

• My mother is a teacher, emphasizing the importance of education and continuous learning.

• They both encourage me to pursue my dreams and support my career aspirations.

• Their dedication to their professions has taught me the valu...read more

The purpose of automobiles is to provide transportation for people and goods, increasing mobility and convenience.

• Transportation of people and goods

• Increased mobility and convenience

• Efficient travel over long distances

• Economic growth through trade and commerce

• Enhanced quality of life by connecting people and communities

A CNC operator is a skilled professional who operates computer numerical control machines to perform various tasks like cutting, shaping, and finishing materials.

• CNC operators use computer programs to control and operate machines for tasks like drilling, milling, and turning.

• They interpret blueprints, set up machines, and monitor the production process to ensure accuracy and efficiency.

• CNC operators are responsibl...read more

Types of breaks include mechanical breaks, hydraulic breaks, and electromagnetic breaks.

• Mechanical breaks rely on friction to slow down or stop motion, such as brake pads on a bicycle.

• Hydraulic breaks use fluid pressure to transfer force, commonly found in car braking systems.

• Electromagnetic breaks use electromagnetic force to slow down or stop motion, often used in industrial machinery.

Computer Numerical Control

• Stands for Computer Numerical Control

• Used in manufacturing processes to control machining tools and equipment

• Automates the operation of machines based on pre-programmed sequences of commands

• Examples include CNC milling machines, CNC routers, CNC lathes

An RLC circuit is a circuit containing a resistor, inductor, and capacitor.

• RLC stands for Resistor-Inductor-Capacitor.

• It is a type of circuit used in electronics and electrical engineering.

• The circuit can be used for filtering, tuning, and oscillation.

• Examples include bandpass filters, notch filters, and resonant circuits.

• The behavior of the circuit depends on the values of the components and the frequency of the ...read more

Linear integrated circuits are essential components in various electronic instruments, enabling signal processing and amplification.

• Operational Amplifiers (Op-Amps) - Used in signal conditioning and filtering.

• Voltage Regulators - Maintain a constant output voltage.

• Comparators - Compare two voltages and output a digital signal.

• Analog Multipliers - Used in applications like modulation and demodulation.

• Phase-Locked L...read more