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I applied via Approached by Company and was interviewed before Oct 2023. There were 2 interview rounds.
It is individual skills
An elevator is a vertical transportation device used to move people or goods between floors in a building.
Consists of a cab or platform that moves along a track within a shaft
Powered by an electric motor
Equipped with safety features such as emergency brakes and sensors
Common types include hydraulic, traction, and machine-room-less elevators
Drive usage refers to the amount of space being utilized on a storage drive.
Drive usage can be monitored through the operating system or specialized software tools.
It is important to regularly check drive usage to prevent running out of storage space.
Examples of drive usage include storing files, installing programs, and saving data.
SMPS stands for Switched Mode Power Supply, used to convert electrical power efficiently.
Converts AC to DC power
Provides stable output voltage
Efficiently regulates power flow
Used in electronic devices like computers, TVs, and LED lights
The escalator step sag switch is a safety device that detects when a step is sagging and triggers an alarm or stops the escalator.
Escalator step sag switch is a safety feature to prevent accidents.
It detects when a step is sagging due to wear and tear or excessive weight.
Once sagging is detected, the switch triggers an alarm or stops the escalator to prevent further damage or accidents.
I applied via Walk-in and was interviewed before Aug 2020. There was 1 interview round.
I will prioritize tasks, communicate effectively, utilize resources efficiently, and continuously improve my skills.
Prioritize tasks based on importance and deadlines
Communicate effectively with team members and stakeholders
Utilize resources such as tools and technologies to streamline processes
Continuously improve skills through training and learning opportunities
Chiller and VRF systems differ in their cooling capacity, efficiency, and cost.
Chillers are better suited for large commercial buildings with high cooling loads.
VRF systems are more efficient and cost-effective for smaller buildings or individual rooms.
Chillers use water as a cooling medium, while VRF systems use refrigerant.
Chillers require more maintenance and have a longer lifespan than VRF systems.
VRF systems offer...
posted on 23 Feb 2024
I applied via Job Portal
I applied via Approached by Company and was interviewed before Jun 2022. There were 5 interview rounds.
Sub cooling in air conditioning is the process of cooling the refrigerant below its saturation temperature to improve system efficiency.
Sub cooling increases the efficiency of the air conditioning system by ensuring the refrigerant is in a liquid state before entering the expansion valve.
It helps in preventing flash evaporation of the refrigerant, which can lead to inefficiencies in the system.
Sub cooling is typically ...
ISEER rating is calculated based on the weighted average of the cooling performance of an air conditioner under different conditions.
ISEER = (Weighted Cooling Capacity at 100% load x 0.4) + (Weighted Cooling Capacity at 75% load x 0.2) + (Weighted Cooling Capacity at 50% load x 0.4)
The higher the ISEER rating, the more energy efficient the air conditioner is.
ISEER rating helps consumers compare the energy efficiency of...
The refrigeration cycle is a thermodynamic cycle used in refrigerators and air conditioning systems to transfer heat from a low temperature to a high temperature environment.
The cycle consists of four main components: compressor, condenser, expansion valve, and evaporator.
The refrigerant enters the compressor as a low-pressure gas and leaves as a high-pressure, high-temperature gas.
The high-pressure gas then flows into...
Mainstream refrigerants used in household air conditioning include R-410A, R-22, and R-134a.
R-410A is a popular refrigerant known for its high efficiency and environmental friendliness.
R-22, although being phased out due to its ozone-depleting properties, is still commonly found in older air conditioning systems.
R-134a is commonly used in automotive air conditioning systems but can also be found in some household units
1 ton cooling concept refers to the amount of heat required to melt one ton of ice in a 24-hour period.
1 ton of cooling is equal to 12,000 BTUs per hour
It is commonly used in the HVAC industry to measure the cooling capacity of air conditioning systems
For example, a 2-ton air conditioner can remove 24,000 BTUs of heat per hour
The relationship between current, voltage, and power is described by Ohm's Law, which states that current is directly proportional to voltage and inversely proportional to resistance.
Ohm's Law states that V = I * R, where V is voltage, I is current, and R is resistance.
Power (P) is calculated using the formula P = V * I, where P is power, V is voltage, and I is current.
In a circuit with a constant resistance, an increa...
1 BTU is approximately equal to 0.29307107 watts. To convert BTU to watts, multiply by 0.29307107. To convert watts to BTU, divide by 0.29307107.
1 BTU = 0.29307107 watts
To convert BTU to watts, multiply by 0.29307107
To convert watts to BTU, divide by 0.29307107
I applied via Approached by Company and was interviewed in Apr 2022. There were 4 interview rounds.
Generic leetcode easy medium
based on 1 interview
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