MCAS Technology Engineering Questions

1

An architect is designing a special fountain for an art museum. A system of copper pipes will be used to supply
water to different parts of the fountain.

Which of the following will occur if the architect uses a 45° elbow instead of a 90° elbow in one section of the piping system?

1

An automobile battery produces which type of current?

1

Engineering students must use the engineering design process for a class project. The problem for this class project has been identified.

a. List four other steps of the engineering design process that the students should do.

b. Describe one purpose for each step you identified in part (a).

1

The diagram below shows a system of hydraulic pistons. The surface area of piston Y is nine times greater than the surface area of piston X.

If a downward force of 10 N is applied to piston X, what upward force will piston Y exert?

10

A series circuit is shown in the diagram below. A rectangular diagram of a circuit with a component in the center of each side. The component of the left side represented by two sets of alternating longer and shorter parallel lines with white space between them. This component is labeled '10 V'. The components on the top, right side, and bottom are all the same and each is represented by a zigzag line with no label.

What is the total resistance of the circuit if the current is 2 A?

V=IR, R=V/I

10

Which of the following most likely operates on alternating current?

Alternating current changes direction

10

A teacher performs an experiment for a group of students. The teacher uses long, thin copper wires to connect a battery to a small light bulb. The students observe that the light bulb becomes dimmer. As the wires cool, the bulb becomes bright again.
Which of the following relationships is the teacher trying to demonstrate?

Heat is the key word

10

Which of the following objects is a controller in a circuit?

A controller "controls" the device

10

Which of the following devices is most likely to use a laser?

10

Which of the following statements best explains why fiber optic cable is preferred over copper wire in telephone and Internet applications?

10

Wireless signals can be used in long distance data communication systems. Which two components of these communication systems interact with the wireless signals that travel a long distance?

10

How are radio signals transmitted through the atmosphere?

10

During which stage of manufacturing a wooden rocking chair are the pieces of the chair fastened together?

10

Which of the following is the best example of a finishing process in manufacturing?

10

A factory that manufactures hats uses robots for some production tasks. Which of the following tasks are the robots most likely doing?

10

A forced hot air system minimizes cold spots within the interior rooms of a house. Which of the following is primarily responsible for the efficient heating by a forced hot air system?

10

One goal of using alternative energy methods is to decrease dependency on fossil fuels. Which of the following statements best explains why dependency on fossil fuels needs to be decreased?

10

The drawing below represents a finished basement floor plan.

The left side shows a family room that is connected to the furnace room. On the right side of the family room, a doorway leads to a hallway which connects to a bathroom and an area labeled W.

The area labeled W contains seven equally spaced horizontal lines that lead to an area labeled landing which further leads to another set of seven equally spaced horizontal lines.
What does W represent in the drawing?

10

A student has a drawing of the Federal Reserve Bank Building in Boston, Massachusetts. The building’s height in the drawing is 25 cm. The drawing has a scale of 1 cm = 7.5 m.
What is the actual height of the building?

10

A company is designing a new automobile brake system. After repeated testing of the brake system prototype, engineers presented a report to their company explaining that they discovered a major problem in the system.

Which of the following should the engineers do next?

10

Many new car and truck frames are made of aluminum alloys. Which of the following statements describes an advantage of using aluminum frames in vehicles instead of steel frames?

10

A pickup truck fully loaded with cargo weighs 5000 lb. If the cargo weighs 1000 lb., what is the dead load of the truck?

10

The foundation of a building carries the weight of the structure above it. Which of the following is the primary type of force on the foundation?

10

What do all pneumatic tools have in common?

10

Which of the following statements best describes open fluid systems?

10

An architect is designing a special fountain for an art museum. A system of copper pipes will be used to supplywater to different parts of the fountain.Which of the following will occur if the architect uses a 45° elbow instead of a 90° elbow in one section of the piping system?

An automobile battery produces which type of current?

Engineering students must use the engineering design process for a class project. The problem for this class project has been identified.a. List four other steps of the engineering design process that the students should do. b. Describe one purpose for each step you identified in part (a).

The diagram below shows a system of hydraulic pistons. The surface area of piston Y is nine times greater than the surface area of piston X.If a downward force of 10 N is applied to piston X, what upward force will piston Y exert?

Which of the following most likely operates on alternating current?

Which of the following objects is a controller in a circuit?

Which of the following devices is most likely to use a laser?

Which of the following statements best explains why fiber optic cable is preferred over copper wire in telephone and Internet applications?

Wireless signals can be used in long distance data communication systems. Which two components of these communication systems interact with the wireless signals that travel a long distance?

How are radio signals transmitted through the atmosphere?

During which stage of manufacturing a wooden rocking chair are the pieces of the chair fastened together?

Which of the following is the best example of a finishing process in manufacturing?

A factory that manufactures hats uses robots for some production tasks. Which of the following tasks are the robots most likely doing?

A forced hot air system minimizes cold spots within the interior rooms of a house. Which of the following is primarily responsible for the efficient heating by a forced hot air system?

One goal of using alternative energy methods is to decrease dependency on fossil fuels. Which of the following statements best explains why dependency on fossil fuels needs to be decreased?

A student has a drawing of the Federal Reserve Bank Building in Boston, Massachusetts. The building’s height in the drawing is 25 cm. The drawing has a scale of 1 cm = 7.5 m. What is the actual height of the building?

A company is designing a new automobile brake system. After repeated testing of the brake system prototype, engineers presented a report to their company explaining that they discovered a major problem in the system. Which of the following should the engineers do next?

Many new car and truck frames are made of aluminum alloys. Which of the following statements describes an advantage of using aluminum frames in vehicles instead of steel frames?

A pickup truck fully loaded with cargo weighs 5000 lb. If the cargo weighs 1000 lb., what is the dead load of the truck?

The foundation of a building carries the weight of the structure above it. Which of the following is the primary type of force on the foundation?

What do all pneumatic tools have in common?

Which of the following statements best describes open fluid systems?

Which of the following statements explains why hydraulic systems are generally more efficient than pneumatic systems?

An architect is designing a special fountain for an art museum. A system of copper pipes will be used to supply
water to different parts of the fountain.

Which of the following will occur if the architect uses a 45° elbow instead of a 90° elbow in one section of the piping system?

Engineering students must use the engineering design process for a class project. The problem for this class project has been identified.

a. List four other steps of the engineering design process that the students should do.

b. Describe one purpose for each step you identified in part (a).

The diagram below shows a system of hydraulic pistons. The surface area of piston Y is nine times greater than the surface area of piston X.

If a downward force of 10 N is applied to piston X, what upward force will piston Y exert?

A student has a drawing of the Federal Reserve Bank Building in Boston, Massachusetts. The building’s height in the drawing is 25 cm. The drawing has a scale of 1 cm = 7.5 m.
What is the actual height of the building?

A company is designing a new automobile brake system. After repeated testing of the brake system prototype, engineers presented a report to their company explaining that they discovered a major problem in the system.

Which of the following should the engineers do next?