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Answers to questions related to HVAC systems for Sr. Project Engineer interview.
RH stands for Relative Humidity, which is the amount of water vapor present in air compared to the maximum amount that can be held at that temperature.
U-trap in HVAC unit drain piping prevents sewer gases from entering the building and maintains proper drainage flow.
Types of ducts include rectangular, round, oval, and spiral ducts.
Duct gaug...
I applied via Naukri.com and was interviewed in Jan 2021. There were 3 interview rounds.
The minimum grade of concrete for RCC (Reinforced Cement Concrete) is M20.
The minimum grade of concrete for RCC is determined based on the structural requirements and design specifications.
The grade of concrete is denoted by the mix ratio of cement, sand, and aggregate.
M20 grade concrete means that the mix ratio is 1:1.5:3, where 1 part of cement, 1.5 parts of sand, and 3 parts of aggregate are used.
This grade of concr...
The ratio of M25 refers to the mix proportion of concrete, where M represents the mix and 25 represents the compressive strength of concrete in megapascals (MPa).
M25 is a commonly used mix proportion for concrete in construction.
The M in M25 stands for mix, indicating the type and proportion of materials used in the concrete mix.
The number 25 in M25 represents the target compressive strength of the concrete in megapasc...
Lapping length is the overlap of two reinforcing bars to ensure continuity, while development length is the length required to transfer the stress from the bar to the surrounding concrete.
Lapping length is used to maintain the strength and integrity of reinforced concrete structures.
It is necessary to provide lapping length to ensure the load is transferred smoothly from one bar to another.
The lapping length is typical...
Development length is the length of reinforcement required to transfer the stress from the steel to the surrounding concrete.
It is the minimum length of reinforcement bars that must be embedded in concrete to ensure proper bond strength.
Development length depends on factors like bar diameter, concrete strength, and type of reinforcement.
It is necessary to prevent the steel bars from slipping or pulling out of the concr...
ld for M25 and Fe500 is not a standard term in civil engineering.
ld is not a standard term in civil engineering
It is possible that the interviewer meant to ask for something else
M25 and Fe500 are grades of concrete and steel respectively
The equation Ld = 50x dia of bar relates the development length (Ld) of a reinforcement bar to its diameter.
The development length is the length of bar required to transfer the stresses between the reinforcement and the concrete.
The equation suggests that the development length is 50 times the diameter of the bar.
For example, if the diameter of the bar is 10 mm, the development length would be 500 mm.
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I applied via Company Website and was interviewed before Dec 2020. There were 4 interview rounds.
I applied via Referral and was interviewed before Jan 2021. There was 1 interview round.
I applied via Campus Placement and was interviewed before Feb 2021. There were 3 interview rounds.
Aptitude round consists Logical reasoning, General Aptitude, Grammar related questions etc. All are moderate level questions.
OOPs is a programming paradigm that uses objects to represent real-world entities. Java is an OOPs language.
OOPs stands for Object-Oriented Programming System
Java is a class-based OOPs language
Encapsulation, Inheritance, Polymorphism, and Abstraction are the four pillars of OOPs
Objects have state and behavior
Java supports interfaces, which allow for multiple inheritance
Example: A car can be represented as an object wit...
Java solves machine dependency by using bytecode and virtual machine.
Java code is compiled into bytecode which is platform-independent
The bytecode is executed by the Java Virtual Machine (JVM) which is platform-specific
JVM translates bytecode into machine code for the specific platform
This allows Java code to run on any platform with a JVM installed
Example: A Java program compiled on Windows can run on Linux or Mac as
I applied via Campus Placement and was interviewed before May 2021. There were 2 interview rounds.
Numerical ability and logical reasoning followed by some coding mcqs
Printing 1 to 100 without for loop
Use recursion to print numbers from 1 to 99
Print 100 outside the recursion
Use a base case to stop recursion at 100
I applied via Campus Placement and was interviewed before Jun 2021. There were 2 interview rounds.
Simple aptitude test
I applied via Company Website and was interviewed before Jul 2021. There were 2 interview rounds.
Attended the codevita competition in final year of college.
I applied via Campus Placement and was interviewed before Aug 2021. There were 2 interview rounds.
It was a basic aptitude test.
I applied via Campus Placement and was interviewed before Jun 2021. There were 2 interview rounds.
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