Johnson Controls Hitachi Air Conditioning
10+ Charan Mobile Accessories Interview Questions and Answers
Q1. Refrigeration cycle and technical factors in AIRCONDITIONING machines
Refrigeration cycle and technical factors are crucial in air conditioning machines.
The refrigeration cycle involves four main components: compressor, condenser, expansion valve, and evaporator.
Technical factors include proper sizing of the unit, correct refrigerant charge, and adequate airflow.
Efficiency can be improved by using variable speed compressors and fans, and by implementing smart controls.
Regular maintenance, such as cleaning coils and changing filters, is importan...read more
Q2. How to controls in-process defects & prevent to outflow?
In-process defect controls & prevention of outflow
Implement quality control measures at each stage of production
Train employees on identifying and addressing defects
Regularly monitor and analyze production data to identify trends
Implement corrective actions to prevent recurrence of defects
Conduct regular audits to ensure compliance with quality standards
Use statistical process control techniques to identify and address defects
Implement a robust supplier quality management sys...read more
Q3. Explain Zero, 1st & 2nd Law of Thermodynamics
The Zeroth Law states that if two systems are in thermal equilibrium with a third system, they are in thermal equilibrium with each other. The First Law states that energy cannot be created or destroyed, only transferred or converted. The Second Law states that the total entropy of an isolated system can never decrease over time.
Zeroth Law: Systems in thermal equilibrium with a third system are in thermal equilibrium with each other
First Law: Energy is conserved, cannot be cr...read more
Q4. Which tool are you using for analysis the problem?
I use various tools depending on the nature of the problem, such as Fishbone diagram, Pareto chart, and 5 Whys.
I analyze the problem using Fishbone diagram to identify the root cause
I use Pareto chart to prioritize the problems based on their impact
I apply 5 Whys technique to dig deeper into the problem and find the underlying cause
I also use statistical tools like Control charts and Histograms to analyze data
I select the appropriate tool based on the type and complexity of t...read more
Q5. Which of the following computer languages is written in binary form?
Q6. Volume of tonnage under service
The volume of tonnage under service refers to the amount of weight being handled by the company's services.
The volume of tonnage under service can be measured in various units such as metric tons, pounds, or kilograms.
It is important to track the volume of tonnage under service to ensure that the company's resources are being utilized efficiently.
The volume of tonnage under service can be affected by factors such as seasonality, market demand, and competition.
For example, a s...read more
Q7. 1- What is transformer? 2-What is motor?
A transformer is an electrical device that transfers electrical energy between two or more circuits through electromagnetic induction.
Transformers are used to increase or decrease the voltage in electrical power transmission and distribution systems.
They consist of two or more coils of wire, known as windings, which are wound around a core made of magnetic material.
Transformers are commonly used in power substations, electrical appliances, and electronic devices.
Examples of t...read more
Q8. Explain Voltage in simple language
Voltage is the force that pushes electric current through a circuit.
Voltage is the difference in electric potential between two points in a circuit
It is measured in volts (V)
Higher voltage means more force pushing the current
Voltage is necessary for electrical devices to function properly
Q9. Range of products you handle
I handle a wide range of products including electronics, home appliances, and personal care items.
Electronics such as smartphones, laptops, and gaming consoles
Home appliances like refrigerators, washing machines, and air conditioners
Personal care items including hair care, skincare, and grooming products
Q10. What is motor and stator?
A motor is a device that converts electrical energy into mechanical energy, while a stator is a stationary component of a motor.
A motor consists of a rotor and a stator, with the rotor rotating inside the stator.
The stator is responsible for producing a magnetic field that interacts with the rotor to produce motion.
The stator is typically made up of a series of coils of wire that are arranged in a specific pattern.
Examples of motors include those used in fans, pumps, and auto...read more
Q11. Explain transformer in brief
A transformer is a device that transfers electrical energy between two or more circuits through electromagnetic induction.
Consists of two coils of wire, known as primary and secondary coils
Primary coil is connected to a power source, inducing a magnetic field
Magnetic field causes a voltage to be induced in the secondary coil
Used in power distribution, voltage regulation, and isolation
Examples include step-up transformers for power transmission and step-down transformers for h...read more
Q12. Electrostatic Force Equation
The electrostatic force equation describes the force between two charged objects.
The electrostatic force equation is given by F = k * (q1 * q2) / r^2, where F is the force, k is the electrostatic constant, q1 and q2 are the charges of the objects, and r is the distance between the objects.
The force is attractive if the charges are opposite (one positive and one negative) and repulsive if the charges are the same (both positive or both negative).
The electrostatic force is a fu...read more
Q13. What is voltage?
Voltage is the measure of electric potential difference between two points in an electrical circuit.
Voltage is measured in volts (V)
It is the force that drives electric current through a circuit
Higher voltage means more energy is available to move electrons
Voltage can be either AC (alternating current) or DC (direct current)
Examples of voltage sources include batteries, generators, and power outlets
Q14. what is positive marketing
Positive marketing focuses on highlighting the benefits and positive aspects of a product or service to attract customers.
Emphasizes the advantages and strengths of the product or service
Focuses on creating a positive image and perception in the minds of consumers
Uses uplifting and inspiring messaging to appeal to emotions
Encourages customer loyalty and repeat business
Examples: Coca-Cola's 'Share a Coke' campaign, Dove's 'Real Beauty' campaign
Q15. Explain VCR cycle
VCR cycle stands for Ventilation, Circulation, and Respiration cycle in medical emergency response.
Ventilation: Providing artificial respiration to the patient to ensure oxygen supply.
Circulation: Maintaining blood flow through chest compressions or other methods.
Respiration: Ensuring the patient is breathing properly.
Example: In CPR, the VCR cycle is followed to sustain life until medical help arrives.
Q16. Prices if different commodities
Prices of different commodities vary based on factors like demand, supply, quality, and location.
Prices are influenced by factors such as demand and supply dynamics.
Quality of the commodity can also impact its price.
Location plays a role in determining prices due to transportation costs.
Examples: Gold prices fluctuate based on global demand, while agricultural commodity prices can be affected by weather conditions.
Q17. sale me this pen
This pen is sleek, reliable, and perfect for everyday use.
Highlight the pen's sleek design and comfortable grip
Emphasize the pen's smooth writing experience
Mention the pen's durability and long-lasting ink
Offer a special promotion or discount for purchasing multiple pens
Q18. How to cycle balance
Q19. How to operate lab
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