FTTX and JC Construction Engineer Interview Questions and Answers

The size of FSA and area of DSA are important factors in FTTX network issues.

• FSA (Fiber Serving Area) size determines the number of customers that can be served by a single OLT (Optical Line Terminal).

• DSA (Distribution Serving Area) size determines the number of OLTs required to serve a particular area.

• FTTX network issues can arise due to inadequate FSA or DSA sizes, resulting in congestion and slow speeds.

• Proper planning and design of FSA and DSA sizes can ensure efficient a...read more

Fiber color coding in OFC work is used to identify different types of fibers and their functions.

• Fiber color coding helps in easily identifying different types of fibers in a network.

• Standard color codes are used for different types of fibers, such as blue for single-mode fibers and orange for multimode fibers.

• Color coding also helps in troubleshooting and maintenance of fiber optic networks.

Development length of steel in beam is the length of embedded reinforcement required to transfer the stresses to the concrete.

• Development length is influenced by factors like concrete strength, steel strength, bond strength, and diameter of the bar.

• It is calculated using empirical formulas provided by codes like ACI or IS.

• For example, ACI 318 provides formulas for calculating development length based on various parameters.

Optical fibre in customer premises is used to provide high-speed internet and other communication services.

• Optical fibre is used to deliver high-speed internet, TV, and phone services to customers' homes or businesses.

• Fibre optic cables are installed inside the customer premises to connect to the network provider's infrastructure.

• Customers can enjoy faster internet speeds, better video quality, and more reliable connections with optical fibre technology.

M20 grade concrete refers to the mix ratio of cement, sand, and aggregate used in construction.

• M20 grade concrete has a mix ratio of 1:1.5:3 (cement:sand:aggregate)

• It is commonly used for residential construction projects

• The strength of M20 grade concrete is 20 Mega Pascals (MPa) after 28 days of curing