Jacobs Engineering Group Assistant Engineer - Civil Interview Questions and Answers

Hydraulic refers to the study of fluids in motion and the engineering applications of fluid mechanics.

• Hydraulic engineering involves the design and construction of structures that control the flow and pressure of liquids, such as dams, canals, and pipelines.

• Hydraulic systems use fluid pressure to generate, control, and transmit power, commonly found in machinery like hydraulic lifts and brakes.

• Hydraulic principles are ...read more

Hydration process is the chemical reaction between cement and water which results in the hardening of concrete.

• Hydration process starts as soon as water is added to cement.

• The reaction produces heat and causes the mixture to harden and gain strength.

• The process continues for weeks and even months, resulting in a stronger and more durable concrete.

• The amount of water used in the mixture affects the hydration process and...read more

Concrete strength depends on various factors.

• Water-cement ratio

• Type and quality of cement

• Aggregate size and shape

• Curing conditions

• Mix design

• Age of concrete

• Temperature and humidity

• Presence of admixtures

Water is added to concrete mixer to make the mixture more workable and to achieve the desired consistency.

• Water is added to hydrate the cement and activate the chemical reaction that causes it to harden

• The amount of water added affects the strength and durability of the concrete

• Too much water can weaken the concrete and cause cracking

• The water should be added gradually and mixed thoroughly to ensure even distribution

• Ot...read more

Answering questions related to concrete mix, IS codes, cement setting time, clear cover, transition curve, supervisor elevation, pavement design, and beam cover.

• Mix ratio of concrete is the proportion of cement, sand, and aggregate used in the mixture.

• IS codes are Indian Standards codes that provide guidelines for construction materials and practices.

• Setting time of cement is the time taken by cement to harden and gain...read more

A beam is a structural element that is designed to resist loads applied perpendicular to its longitudinal axis.

• Beams are commonly used in construction to support loads over a span.

• They can be made of various materials such as wood, steel, or concrete.

• Beams can be classified based on their shape, such as I-beams, H-beams, or T-beams.

• The design of a beam takes into account factors like span length, load requirements, and

King post and queen post are both types of trusses used in construction, with king post being a simpler design and queen post being a more complex design.

• King post is a simple vertical member in a truss, while queen post is a pair of vertical members connected by a horizontal member.

• Queen post trusses are stronger and can span longer distances compared to king post trusses.

• King post trusses are commonly used in small s...read more

Concrete slump is a measure of consistency of freshly mixed concrete.

• It is measured by the slump test, which involves filling a metal cone with concrete and then removing the cone to see how much the concrete slumps or settles.

• The slump value can indicate whether the concrete is too wet or too dry, and can affect the strength and durability of the finished product.

• The ideal slump value depends on the specific applicati...read more