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Heat detectors are devices that sense abnormally high temperatures and are typically used in areas where smoke detectors may not be suitable.
Types of heat detectors include fixed temperature detectors, rate-of-rise detectors, and combination detectors.
Fixed temperature detectors activate when a specific temperature is reached.
Rate-of-rise detectors activate when the temperature increases rapidly.
Combination detectors c...
NWC, NWF, and NWD are different file formats used in BIM modeling.
NWC (Navisworks Cache) is a lightweight file format used for sharing models with stakeholders who do not have access to the original software.
NWF (Navisworks File) is a project file format that references multiple NWD files and allows for collaboration and coordination.
NWD (Navisworks Document) is a published file format that contains all the data and ge
Fire is a rapid chemical reaction that releases heat, light, and various gases.
Fire is a rapid oxidation process that produces heat and light
It requires fuel, oxygen, and heat to sustain
Different types of fires require different methods of extinguishing (e.g. water for Class A fires, CO2 for electrical fires)
Fire can spread rapidly and be extremely dangerous
I was responsible for inspecting, testing, and maintaining fire protection systems in commercial buildings.
Conducted regular inspections of fire alarms, sprinkler systems, and fire extinguishers
Performed routine maintenance and repairs on fire suppression equipment
Ensured all systems were up to code and functioning properly
Collaborated with building owners and managers to address any issues or concerns
Kept detailed rec...
Coaxial cable is a type of electrical cable that has an inner conductor surrounded by a tubular insulating layer, surrounded by a conductive layer.
Consists of a central conductor, insulating layer, conductive shield, and outer insulating layer
Used for transmitting high-frequency signals with low loss
Commonly used in cable television, internet connections, and security camera systems
There are several types of CCTV systems, including analog, IP, wireless, dome, bullet, PTZ, and thermal cameras.
Analog CCTV systems use analog cameras and DVRs to record footage.
IP CCTV systems use network cameras and NVRs to record footage.
Wireless CCTV systems eliminate the need for cables by transmitting footage wirelessly.
Dome cameras are discreet and often used for indoor surveillance.
Bullet cameras are more visib...
I applied via Naukri.com and was interviewed in May 2024. There were 2 interview rounds.
There are mainly four types of sprinkler systems used in fire fighting work.
Wet pipe sprinkler system
Dry pipe sprinkler system
Pre-action sprinkler system
Deluge sprinkler system
NAFFCO interview questions for popular designations
I applied via Company Website and was interviewed in Apr 2023. There were 2 interview rounds.
Productivity is the measure of efficiency in completing tasks and achieving goals.
Productivity is the ratio of output to input.
It is the ability to produce more with less.
It involves setting goals, prioritizing tasks, and managing time effectively.
Examples include completing tasks within a given deadline, increasing sales revenue, and reducing costs.
Productivity can be improved through training, automation, and delegat
WIR and MIR are financial terms used in the insurance industry.
WIR stands for Written Insurance Ratio, which is the ratio of premiums written to premiums earned.
MIR stands for Medical Insurance Ratio, which is the ratio of medical claims paid to premiums earned.
Both ratios are used to measure the financial performance of an insurance company.
A high WIR indicates that the company is writing a lot of new business, while ...
Fore safety refers to the safety measures taken in forestry operations to prevent accidents and injuries.
Fore safety includes proper training of workers, use of personal protective equipment, and adherence to safety protocols.
Examples of safety measures include using chainsaw chaps to protect against cuts, ensuring proper ventilation when using chemicals, and maintaining equipment to prevent malfunctions.
Fore safety al...
Get interview-ready with Top NAFFCO Interview Questions
I applied via Approached by Company and was interviewed in Jul 2023. There were 2 interview rounds.
Brake sizing involves determining the appropriate size of brakes for a vehicle based on factors like weight, speed, and stopping distance.
Consider the weight of the vehicle to determine the required braking force
Calculate the speed at which the vehicle will be traveling and the desired stopping distance
Select the appropriate brake size and type based on the calculated requirements
Factors such as brake pad material, rot...
I was interviewed in Nov 2022.
I applied via Walk-in and was interviewed in Jun 2023. There were 2 interview rounds.
I applied via Naukri.com and was interviewed in Mar 2022. There were 3 interview rounds.
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Design Engineer
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| ₹6 L/yr - ₹13.4 L/yr |
Project Engineer
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| ₹4.8 L/yr - ₹15.1 L/yr |
Estimation Engineer
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Design & Estimation Engineer
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