Ceat Tyres Maintenance Engineer Interview Questions and Answers

There are several types of valves in instrumentation.

• Gate valve

• Ball valve

• Butterfly valve

• Globe valve

• Check valve

• Diaphragm valve

• Needle valve

• Plug valve

• Pressure relief valve

• Safety valve

A load cell is a transducer that converts force into an electrical signal. Calibration involves applying known loads and adjusting the output signal.

• Load cell measures force or weight

• It converts the force into an electrical signal

• Calibration involves applying known loads and adjusting the output signal

• Calibration can be done using a calibration machine or weights

• Calibration should be done regularly to ensure accurate readings

Calibration of I/P converter involves adjusting the output pressure to match the input signal.

• Connect the I/P converter to a pressure source and a signal generator

• Adjust the input signal to the desired value

• Measure the output pressure and adjust it to match the input signal

• Repeat the process at different input signal levels to ensure accuracy

• Document the calibration results for future reference

PT, LT and LVDT are types of sensors used in engineering for measuring pressure, temperature and displacement respectively.

• PT stands for Pressure Transducer and is used to measure pressure in various applications such as hydraulic systems, engines, and pipelines.

• LT stands for Linear Transducer and is used to measure temperature in various applications such as engines, HVAC systems, and industrial processes.

• LVDT stands for Linear Variable Differential Transformer and is used t...read more

The spanner size required to remove a 12 mm bolt is typically 17 mm.

• The spanner size needed is usually 5 mm larger than the bolt size

• In this case, a 17 mm spanner would be required to remove a 12 mm bolt

Tapping process is a method of cutting internal threads in a hole with the help of a tool called tap.

• Tapping is commonly used in manufacturing to create threaded holes for screws, bolts, and other fasteners.

• The tap is rotated and advanced into the hole to cut the threads.

• There are different types of taps such as taper tap, plug tap, and bottoming tap.

• Tapping can be done manually or with the help of a machine like a tapping machine.

• Proper lubrication is essential during the ta...read more

Industry 4.0 refers to the fourth industrial revolution characterized by the integration of digital technologies into manufacturing processes.

• Involves the use of technologies such as IoT, AI, big data, and automation to create smart factories

• Focuses on interconnected systems that can communicate, analyze data, and make decisions autonomously

• Aims to increase efficiency, productivity, and flexibility in manufacturing processes

• Examples include predictive maintenance, digital twi...read more