Yara Fertilisers
Sony Interview Questions and Answers
Q1. what is level measurements ? radar and ultrasonic?
Level measurement is the process of determining the height of a substance in a container. Radar and ultrasonic are two common methods used for this purpose.
Level measurement is important in industries such as oil and gas, chemical, and food processing.
Radar level measurement uses electromagnetic waves to determine the level of a substance in a container.
Ultrasonic level measurement uses sound waves to determine the level of a substance in a container.
Both methods are non-cont...read more
Q2. what is transmitter? and working of transmitter?
A transmitter is an electronic device that converts electrical signals into radio waves for transmission.
Transmitter is used to send information over long distances.
It converts electrical signals into radio waves.
Transmitter consists of an oscillator, modulator, and amplifier.
The oscillator generates a carrier wave, which is then modulated with the information signal.
The modulated signal is then amplified and transmitted through an antenna.
Examples of transmitters include rad...read more
Q3. what is temperature gauge?
A temperature gauge is a device used to measure and display the temperature of a system or environment.
Temperature gauges are commonly used in various industries such as automotive, HVAC, and manufacturing.
They can be analog or digital, providing a visual representation of temperature.
Some temperature gauges are designed for specific applications, such as oven thermometers or refrigerator thermometers.
They can measure temperature in different units, such as Celsius, Fahrenhei...read more
Q4. what is pressure gauge?
A pressure gauge is a device used to measure the pressure of a fluid or gas in a container or pipeline.
It consists of a dial with a needle that indicates the pressure reading.
There are different types of pressure gauges such as Bourdon tube, diaphragm, and capsule gauges.
They are commonly used in industries such as oil and gas, manufacturing, and automotive.
Pressure gauges are also used in medical equipment to measure blood pressure.
Regular calibration is necessary to ensure ...read more
Q5. difference between capacitorand varistor?
Capacitor stores electrical energy while varistor protects against voltage surges.
Capacitor stores energy in an electric field while varistor is a voltage-dependent resistor.
Capacitor is used in filters, tuning circuits, and energy storage while varistor is used in surge protection.
Capacitor has two conductive plates separated by a dielectric while varistor has a ceramic or metal oxide material.
Capacitor is polarized while varistor is non-polarized.
Examples of capacitors incl...read more
Q6. what is potentiometer?
A potentiometer is an electronic component that can vary the resistance in a circuit.
It is commonly used to control the volume in audio equipment.
It can also be used to adjust the brightness of a light or the speed of a motor.
Potentiometers come in different types, including linear and logarithmic.
They are often represented in circuit diagrams with the symbol of a resistor with an arrow pointing towards a wiper.
Potentiometers can be single-turn or multi-turn, depending on the...read more
Q7. what is lavel gauge?
A level gauge is a device used to measure the level of liquids or gases in a container.
Consists of a glass or plastic tube with markings indicating the level of the substance
May also include a magnetic float or a pressure sensor to measure the level
Used in industries such as chemical, pharmaceutical, and oil and gas
Examples include reflex, transparent, and magnetic level gauges
Q8. Modification & improvement of instruments based on requirement of fertilizer
Modification & improvement of instruments for fertilizer requirements
Identify the specific requirements of the fertilizer
Analyze the current instruments and their limitations
Develop modifications or new instruments to meet the requirements
Test and validate the effectiveness of the modified/improved instruments
Q9. Field instrumentation, Control valve & its accessories in detail
Field instrumentation includes various devices used to measure and control process variables in industrial settings.
Field instrumentation refers to devices such as pressure transmitters, temperature sensors, flow meters, and level gauges used to monitor and control process variables.
Control valves are used to regulate the flow of fluids in a system based on signals from instrumentation devices.
Accessories for control valves include positioners, actuators, and valve position i...read more
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