1. In order for an airplane to fly, which of the following must be true?
a. The thrust must be equal to or greater than the drag, and the left must be equal to or less than the airplane's weight.
b. The trust must be equal to or less than the drag, and the lift must be equal to or greater than the airplane's weight.
c. The trust must be equal to or greater than the drag, and the lift must be equal to or greater than the airplane's weight.
d. The trust must be equal to or greater than the airplane's weight, and the lift must be equal to or greater than the drag.
2. An aerospace engineer might...
a. fly water and supplies into a remote area
b. Design a satellite that monitors climate change from space
c. test new military or commercial aircraft for handling, speed, or safety
d. determine the composition of a planet, its atmosphere, and its moon
3. Which of the following would most likely not exist without the work of biomedical engineers?
a. drug dosages that correspond to a particular patient's weight
b. surgical repair of a broken bone
c. tests that determine of a child has a genetic disease
d. digital hearing aids for people with hearing loss
4. A civil engineer might work on a project to..
a. build skyscrapers that can withstand an earthquake.
b. build hybrid cars with the latest fuel-efficient technology.
c. design a robot to explore the depths of the ocean.
d. design up-to-the-minute fire maps to help firefighters combat forest fires.
5. Without civil engineers, people likely would not have...
a. ultrasound machines
b. airplanes
c. highways.
d. cars.
1.C
2.B
3.D
4.A
5.C
Thank you so much Alr 100%
1. In order to determine the correct answer, we need to understand the four forces that act on an airplane during flight: thrust, drag, lift, and weight.
Thrust: This is the force that pushes the airplane forward, usually generated by engines or propellers.
Drag: It is the resistance encountered by the airplane as it moves through the air.
Lift: This force is generated by the wings and is responsible for keeping the airplane airborne.
Weight: This is the force exerted by the gravitational pull on the airplane.
To maintain steady flight, two conditions must be met: thrust must be equal to or greater than drag, and lift must be equal to or greater than weight. The correct answer is option c: The thrust must be equal to or greater than the drag, and the lift must be equal to or greater than the airplane's weight.
2. An aerospace engineer is involved in various activities related to aircraft and spacecraft. They might design and develop new vehicles, improve existing designs, conduct research, or perform tests. From the given options, all of them seem related to the work of an aerospace engineer. However, the option that encompasses a broader range of activities typically performed by aerospace engineers is option c: test new military or commercial aircraft for handling, speed, or safety.
3. Biomedical engineers work on various areas related to healthcare and medical technology. To determine the option that would most likely not exist without the work of biomedical engineers, we need to examine each option's relationship to their field. Option a: drug dosages that correspond to a particular patient's weight can be determined through biomedical engineering, as it involves scientific and technological advancements in healthcare. Similarly, options b, c, and d all involve biomedical engineering aspects. However, option a seems to have a direct correlation with the work of biomedical engineers as it requires precision and customization, so the correct answer is option a: drug dosages that correspond to a particular patient's weight.
4. Civil engineers work on various infrastructure projects related to the built environment. To determine the correct answer, we need to identify the option that aligns with civil engineering expertise. Among the given options, the one that directly relates to the role of a civil engineer is option a: build skyscrapers that can withstand an earthquake. Civil engineers are responsible for designing and constructing structures to withstand various natural forces, including earthquakes.
5. Civil engineers play a crucial role in designing and building infrastructure that improves transportation. To identify the option that aligns with their work, we need to consider the options provided. Among the given options, the one that is most directly related to the work of civil engineers is option c: highways. Civil engineers are responsible for planning, designing, and constructing highways to facilitate transportation for people and goods. While civil engineers contribute to various aspects of infrastructure, highways are a significant part of their field of expertise.