Nursing Elites

1. Identify the sentence that contains a dependent clause.

• A. The cat sat on the mat.
• B. The cat sat on the mat after it ate.
• C. The cat will sit on the mat tomorrow.
• D. The cat is sitting on the mat.

Correct answer: B

Rationale: The correct answer is B: 'The cat sat on the mat after it ate.' 'After it ate' is a dependent clause because it cannot stand alone as a sentence. It is dependent on the main clause 'The cat sat on the mat.' Choice A is a simple sentence without a dependent clause. Choice C is a sentence with a time adverbial modifying 'The cat will sit on the mat,' not a dependent clause. Choice D is a sentence in the present continuous tense, also lacking a dependent clause.

2. Where does gas exchange take place in the lungs?

• A. Bronchi
• B. Trachea
• C. Alveoli
• D. Pleura

Correct answer: C

Rationale: Gas exchange in the lungs occurs in the alveoli. Alveoli are tiny air sacs where oxygen from inhaled air diffuses into the bloodstream, and carbon dioxide from the blood diffuses into the alveoli to be exhaled. The bronchi are the main airways that branch off from the trachea, which is the windpipe connecting the larynx to the bronchi. The pleura is a membrane surrounding the lungs and lining the chest cavity, providing protection and lubrication for the lungs but not directly involved in gas exchange.

3. A homeowner has hired two people to mow his lawn. If person A is able to mow the lawn in 2 hours by herself and person B is able to mow the lawn in 3 hours by himself, what is the amount of time it would take for both person A and B to mow the lawn together?

• A. 5 hours
• B. 2.5 hours
• C. 1.2 hours
• D. 1 hour

Correct answer: C

Rationale: To find the combined work rate, you add the individual work rates: 1/2 + 1/3 = 5/6. This means that together, they can mow 5/6 of the lawn per hour. To determine how long it would take for both A and B to mow the entire lawn, you take the reciprocal of 5/6, which gives you 6/5 or 1.2 hours. Therefore, it would take 1.2 hours for person A and person B to mow the lawn together. Choice A (5 hours) is incorrect because it does not consider the combined efficiency of both workers. Choice B (2.5 hours) is incorrect as it does not reflect the correct calculation based on the combined work rates of the two individuals. Choice D (1 hour) is incorrect as it doesn't consider the fact that the combined rate is less than the individual rate of person A alone, thus taking longer than 1 hour.

4. Which word in the passage shows that the plunger is depressed and air is pushed out at the same time?

• A. Out
• B. Continued
• C. As
• D. Causes

Correct answer: C

Rationale: The correct answer is 'C: As.' In the provided extract, the word 'As' is used to indicate the simultaneous action of depressing the plunger and pushing out the air. It establishes a connection between the two actions, showing that they occur together. Choice A, 'Out,' refers to the result of pushing the air out, not the action happening simultaneously. Choice B, 'Continued,' suggests a subsequent action rather than a simultaneous one. Choice D, 'Causes,' indicates a cause-and-effect relationship, not the action happening simultaneously like the word 'As' does.

5. Which of the following scenarios represents an example of static friction?

• A. Sliding a heavy box across the floor
• B. A car moving around a curve
• C. Pushing a stationary object
• D. Braking a car to stop

Correct answer: C

Rationale: The correct answer is C. Static friction occurs when two surfaces are in contact but not moving relative to each other. Pushing a stationary object involves static friction as you apply a force to overcome the friction keeping the object stationary. Choices A, B, and D involve kinetic friction, which occurs when two surfaces are moving relative to each other. Option A involves moving the box across the floor, which is an example of kinetic friction. Option B involves the movement of a car around a curve, which also relates to kinetic friction due to the relative movement between the tires and the road. Option D describes braking a car to stop, where the moving car's wheels interact with the road, creating kinetic friction to slow down and stop the car.

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