DEC Infra Junior Officer Finance Interview Questions and Answers for Experienced

Hook's law states that the force needed to extend or compress a spring is directly proportional to the distance it is stretched or compressed.

• Hook's law is a principle in physics that describes the behavior of springs and elastic materials.

• It states that the force exerted by a spring is directly proportional to the displacement or change in length of the spring.

• The law can be mathematically represented as F = kx, where...read more

Homeslaw is a law that states that the rate of cooling of an object is proportional to the temperature difference between the object and its surroundings.

• Homeslaw is also known as Newton's law of cooling.

• It is commonly used in thermodynamics and heat transfer.

• The law can be expressed mathematically as dQ/dt = -hA(T - Ts), where dQ/dt is the rate of heat transfer, h is the heat transfer coefficient, A is the surface are...read more

Building materials, testing, and codes for RCC concrete earthquake resistance.

• Building materials include concrete, steel, wood, and masonry.

• Testing of materials involves compressive strength, tensile strength, and durability tests.

• IS codes for RCC concrete earthquake resistance include IS 456:2000, IS 13920:2016, and IS 1893:2016.

• RCC (Reinforced Cement Concrete) is a composite material made of cement, sand, aggregates,...read more

The question is about cement testing and steel distribution in civil engineering.

• Initial and final setting time of cement are important parameters to determine the workability of cement.

• Testing of cement involves various methods such as compressive strength test, fineness test, and soundness test.

• Main steel refers to the steel bars used in the primary reinforcement of concrete structures.

• Distribution steel refers to th...read more

Marble flooring involves preparation of subfloor, laying of marble tiles and grouting. Waterproofing involves surface preparation, application of waterproofing membrane and finishing.

• For marble flooring, subfloor should be leveled and cleaned before laying tiles.

• Marble tiles are laid using adhesive and spacers to ensure even spacing.

• Grouting is done after tiles are set to fill gaps between tiles.

• For waterproofing, surf...read more

Grade of cement, PCC, and concrete mix are important factors in construction.

• Grade of cement refers to the strength of the cement used in construction.

• PCC stands for Plain Cement Concrete, which is a mixture of cement, sand, and water.

• Concrete mix refers to the ratio of cement, sand, and aggregate used in making concrete.

• The grade of cement used in construction depends on the type of structure and the load it will bear...read more