Arvind Varuna Associates Interview Questions and Answers

There are 3 types of defects as per QM pillar of TPM: Equipment, Process, and Human. We eliminate them through continuous improvement.

• Equipment defects are caused by malfunctioning or poorly maintained equipment. We can eliminate them by implementing preventive maintenance and conducting regular inspections.

• Process defects are caused by errors in the production process. We can eliminate them by identifying the root cause of the problem and implementing corrective actions.

• Huma...read more

PM analysis of TPM involves stages like planning, execution, and evaluation.

• Planning stage involves identifying the objectives, scope, and resources required for TPM analysis.

• Execution stage includes collecting data, analyzing it using statistical tools, and identifying improvement opportunities.

• Evaluation stage focuses on reviewing the results, implementing corrective actions, and monitoring the effectiveness of TPM.

• Examples of PM analysis steps in TPM include conducting equ...read more

Calibration of measuring instruments like vernier caliper, micrometer, dial gauge, etc.

• Calibration involves comparing the measurements of the instrument with a known standard.

• The process ensures accuracy and reliability of the instrument's measurements.

• Calibration is typically performed by a qualified technician using calibration equipment.

• The technician adjusts the instrument if necessary to align it with the standard.

• Calibration intervals should be determined based on the i...read more

In a gear, we measure various parameters such as pitch diameter, tooth thickness, backlash, and runout.

• Pitch diameter is measured using a gear measuring machine or by calculating it from the number of teeth and the module or diametral pitch.

• Tooth thickness is measured using a gear tooth vernier caliper or a gear tooth micrometer.

• Backlash is measured by placing a dial indicator on the gear teeth and measuring the movement of the indicator as the gear is rotated.

• Runout is measu...read more

Various parts of an engine and a transmission and their roles

• Engine parts: pistons, crankshaft, camshaft, valves, spark plugs

• Transmission parts: gears, clutch, torque converter, drive shaft

• Engine parts convert fuel into mechanical energy

• Transmission parts transfer power from the engine to the wheels

Inspection on a CMM and ULM involves using specialized equipment to measure and verify the dimensions and tolerances of a part.

• CMM stands for Coordinate Measuring Machine, which uses a probe to measure the coordinates of points on a part's surface.

• ULM stands for Universal Length Measuring Machine, which uses laser interferometry to measure the length and dimensions of a part.

• To perform inspection on a CMM or ULM, the part is securely placed on the machine's platform.

• The machi...read more

5S is a workplace organization method and 7 QC tools are quality control techniques used in manufacturing.

• 5S is a systematic approach to organizing and maintaining a clean, efficient, and safe work environment.

• The 5S principles are Sort, Set in Order, Shine, Standardize, and Sustain.

• 7 QC tools are a set of statistical techniques used for problem-solving and quality improvement.

• The 7 QC tools include Pareto Chart, Cause and Effect Diagram, Histogram, Check Sheet, Scatter Diagr...read more