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Civil Engineers

Civil engineers design and supervise large construction projects, including roads, buildings, airports, tunnels, dams, bridges, and systems for water supply and sewage treatment. Show Details

Duties

Civil engineers typically do the following:

  • Analyze survey reports, maps, and other data to plan projects
  • Consider construction costs, government regulations, potential environmental hazards, and other factors in planning stages
  • Test soils to determine the adequacy and strength of foundations
  • Test building materials, such as concrete, asphalt, or steel, for use in particular projects
  • Provide cost estimates for materials, equipment, or labor to determine a project’s economic feasibility
  • Use design software to plan and design transportation systems, hydraulic systems, and structures in line with industry and government standards
  • Oversee, or participate in, surveying to establish reference points, grades, and elevations to guide construction
  • Present their findings to the public on topics such as bid proposals, environmental impact statements, or property descriptions

Many civil engineers hold supervisory or administrative positions ranging from supervisor of a construction site to city engineer. Others work in design, construction, research, and teaching. They work with others on projects and may be assisted by civil engineering technicians and technologists.

The federal government employs about 12,100 civil engineers to do many of the same things done in private industry, except that the federally employed civil engineers may also inspect projects to be sure that they comply with regulations.

Civil engineers work on complex projects, so they usually specialize in one of several areas.

Geotechnical engineers work to make sure that foundations are solid. They focus on how structures built by civil engineers, such as buildings and tunnels, interact with the earth (including soil and rock). Additionally, they design and plan for slopes, retaining walls, and tunnels.

Structural engineers design and assess major projects, such as bridges or dams, to ensure their strength and durability.

Transportation engineers plan and design everyday systems, such as streets and highways, but they also plan larger projects, such as airports, ports, and harbors.

Forensic Science Technicians

Forensic science technicians help investigate crimes by collecting and analyzing physical evidence. Most technicians specialize in either crime scene investigation or laboratory analysis. Show Details

Duties

At crime scenes, forensic science technicians, also known as crime scene investigators, typically do the following:

  • Walk through the scene to determine what and how evidence should be collected
  • Take photographs of the crime scene and evidence
  • Make sketches of the crime scene
  • Keep written notes of their observations and findings, such as the location and position of evidence as it is found
  • Collect all relevant physical evidence, including weapons, fingerprints, and bodily fluids
  • Catalog and preserve evidence before transferring it to a crime lab

Crime scene investigators may use tweezers, black lights, and specialized kits to identify and collect evidence. In addition to processing crime scenes, they may also attend autopsies.

In laboratories, forensic science technicians typically do the following:

  • Identify and classify crime scene evidence through scientific analysis
  • Explore possible links between suspects and criminal activity using the results of chemical and physical analyses
  • Consult with experts in related or specialized fields, such as toxicology, about the evidence and their findings
  • Reconstruct crime scenes based on scientific findings

Forensic science technicians reconstruct crime scenes by carefully studying information gathered by investigators and conducting scientific tests on physical evidence. For example, lab technicians may look at photographs of blood splatter patterns and conduct ballistics tests on bullets found at the crime scene to determine the direction from which a shot was fired.

Forensic science technicians who work in laboratories use chemicals and laboratory equipment such as microscopes when analyzing evidence. They also use computer databases to examine fingerprints, DNA, and other evidence collected at crime scenes in order to match them to people and things that have already been identified. Most forensic science technicians who perform laboratory analysis specialize in a specific type of evidence analysis, such as DNA or ballistics.

All forensic science technicians prepare written reports that detail their findings and investigative methods. They must be able to explain their reports to lawyers, detectives, and other law enforcement officials. In addition, forensic science technicians may be called to testify in court about their findings and methods.

Industrial Engineers

Industrial engineers find ways to eliminate wastefulness in production processes. They devise efficient ways to use workers, machines, materials, information, and energy to make a product or provide a service. Show Details

Duties

Industrial engineers typically do the following:

  • Review production schedules, engineering specifications, process flows, and other information to understand manufacturing and service methods and activities
  • Figure out how to manufacture parts or products or deliver services with maximum efficiency
  • Develop management control systems to make financial planning and cost analysis more efficient
  • Enact quality control procedures to resolve production problems or minimize costs
  • Work with customers and management to develop standards for design and production
  • Design control systems to coordinate activities and production planning to ensure that products meet quality standards
  • Confer with clients about product specifications, vendors about purchases, management personnel about manufacturing capabilities, and staff about the status of projects

Industrial engineers apply their skills to many different situations from manufacturing to business administration. For example, they design systems for

  • moving heavy parts within manufacturing plants
  • getting goods from a company to customers, including finding the most profitable places to locate manufacturing or processing plants
  • evaluating how well people do their jobs
  • paying workers

In all these different projects, industrial engineers focus on how get the work done most efficiently, balancing many factors—such as time, number of workers needed, actions workers need to take, achieving the end with no errors, technology that is available, workers' safety, environmental concerns, and cost.

To find ways to reduce waste and improve performance, industrial engineers first study product requirements carefully. Then they use mathematical methods and models to design manufacturing and information systems to meet those requirements most efficiently.

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