Kalpataru Projects International Senior QA QC Engineer Interview Questions and Answers for Experienced

The 20mm nominal size refers to the designated size of a component or object.

• Nominal size is a standard size used for identification and classification purposes.

• In this case, the 20mm nominal size indicates that the component or object is intended to have a size of 20mm.

• It is important to note that the actual size may vary slightly due to manufacturing tolerances.

• The nominal size helps in ensuring compatibility and int...read more

Overhead distribution system is a network of electrical lines and equipment used to distribute power from substations to consumers.

• Overhead distribution systems consist of poles, wires, transformers, and insulators.

• They are commonly used in rural areas and older urban areas.

• Maintenance of overhead distribution systems includes regular inspections for damage and vegetation management.

• Examples of overhead distribution sy...read more

The required sizes of sieves for fine aggregate sieve analysis are typically 3/8", #4, #8, #16, #30, #50, #100, and pan.

• 3/8" sieve

• #4 sieve

• #8 sieve

• #16 sieve

• #30 sieve

• #50 sieve

• #100 sieve

• Pan

Characteristic strength is the strength of a material below which not more than a specified proportion of test results are expected to fall. Target mean strength is the strength that a structure is designed to achieve.

• Characteristic strength is a statistical value representing the lower tail of the strength distribution of a material.

• Target mean strength is the strength that a structure is designed to achieve based on ...read more

M25 is a mix of concrete with a compressive strength of 25 MPa. The cube strength of M25 grade concrete should be 25 MPa.

• M25 is a mix of concrete with a compressive strength of 25 MPa.

• The cube strength of M25 grade concrete should be 25 MPa.

• The mix proportion for M25 grade concrete is usually 1:1:2 (cement:sand:aggregate).

OPC cement is Ordinary Portland Cement, while PPC cement is Portland Pozzolana Cement.

• OPC is made by grinding clinker with gypsum, while PPC is made by intergrinding clinker with fly ash and gypsum.

• PPC has higher long-term strength and durability compared to OPC.

• PPC is more environmentally friendly due to the use of fly ash as a partial replacement for clinker.

• OPC is commonly used for general construction purposes, whi...read more

The major parts in a power transformer include the core, windings, insulation, cooling system, and tap changer.

• Core: Provides a path for magnetic flux and is usually made of laminated steel sheets.

• Windings: Consist of primary and secondary coils that transfer electrical energy.

• Insulation: Prevents electrical leakage and ensures safety.

• Cooling System: Keeps the transformer within operating temperature limits, commonly u...read more

I want to switch electrical circuits and devices.

• Switching electrical circuits to control the flow of electricity.

• Switching electrical devices on or off.

• Switching between different power sources.

• Switching between different modes or settings of electrical equipment.

• Switching between different electrical connections or configurations.

The code of mix design refers to the specific set of guidelines and calculations used to determine the proportions of ingredients in a concrete mix.

• The code of mix design provides a standardized approach to ensure the desired strength and durability of the concrete.

• It takes into account factors such as the type of cement, aggregate properties, water-cement ratio, and admixtures.

• Examples of mix design codes include the ...read more

Water absorption in bricks depends on various factors such as composition, porosity, and manufacturing process.

• Water absorption in bricks is measured as a percentage of the weight of dry brick that absorbs water.

• The water absorption rate of bricks can vary from 5% to 20% depending on their quality.

• Bricks with higher water absorption rates are generally less durable and more prone to damage.

• Factors affecting water absor...read more

The number of tests in bricks depends on various factors such as quality standards, intended use, and regulations.

• The number of tests can vary based on the type of bricks (e.g., clay bricks, concrete bricks).

• Common tests for bricks include compressive strength, water absorption, efflorescence, and dimensions.

• Additional tests may be conducted to assess durability, thermal conductivity, and resistance to chemicals.

• Testin...read more

PMS stands for Piping Material Specification. One class for LPG system piping is Class 150.

• PMS is a document that specifies the materials, standards, and requirements for piping systems.

• Class 150 is a common class for LPG system piping, indicating the pressure rating of the piping components.

• PMS helps ensure that the piping system is designed and constructed according to industry standards and safety regulations.

Hydrotest procedure involves filling the equipment with water and pressurizing it to check for leaks or structural integrity.

• Prepare the equipment by ensuring it is clean and free of debris

• Fill the equipment with water and remove air pockets

• Gradually increase the pressure to the specified level

• Hold the pressure for a specified duration to check for leaks

• Monitor for any leaks or structural failures

• Release the pressure a

Current CTC is $90,000 and expected CTC is $110,000

• Current CTC: $90,000

• Expected CTC: $110,000

• Open to negotiation based on benefits and growth opportunities