Passage: In the early 20th century, advances in medicine began to change the nature of public health. Vaccines, sanitation systems, and antibiotics all contributed to longer life spans. Yet, it wasn’t just science that prolonged life—it was also education and policy. What is the main idea of this passage?

Education and policy helped improve life expectancy

Antibiotics were the most important public health advancement

Public health improved only because of scientific breakthroughs

Medicine had no impact on public health

Passage: Throughout history, technological innovation has spurred economic transformation. From the printing press to the internet, new tools have reshaped the way people communicate, learn, and work. What is the central idea of this passage?

Economic change is often driven by new technologies

Communication has become faster due to innovation

The internet is the greatest invention

Learning is more efficient today

Which of the following is an opinion rather than a fact?

“Many believe this is the greatest novel ever written.”

“The Earth orbits the Sun.”

“The lungs are part of the respiratory system.”

NLN NEX Nursing Entrance Exam

Free NLN NEX Nursing Entrance Practice Questions

10 sample questions for the NLN NEX Nursing Entrance Exam, with the correct answer and an explanation for each. No account needed. Try each one before you open the answer.

Sections covered on the exam: Reading in Context, Finding the Meaning and Assessing the Text, Numbers and Operations, Measurement, Algebra, Data and Information, Science Cognitive Skills, Biology, Anatomy and Physiology, Chemistry, Additional Reading Concepts, Word Knowledge.

Question 1 · Reading in Context
Passage:
In the early 20th century, advances in medicine began to change the nature of public health. Vaccines, sanitation systems, and antibiotics all contributed to longer life spans. Yet, it wasn’t just science that prolonged life—it was also education and policy.
What is the main idea of this passage?
- A.Antibiotics were the most important public health advancement
- B.Public health improved only because of scientific breakthroughs
- C.Education and policy helped improve life expectancy
- D.Medicine had no impact on public health
Show answer and explanation
Answer: C. Education and policy helped improve life expectancy
The passage highlights both science and education/policy as contributing factors. Option C accurately reflects the broader idea.
Question 2 · Numbers and Operations
Which fraction is equivalent to 0.75?
- A.1/2
- B.1/4
- C.2/3
- D.3/4
Show answer and explanation
Answer: D. 3/4
0.75=3/4.
Question 3 · Data and Information
Find the median of: 45, 50, 55, 60, 65
- A.50
- B.65
- C.60
- D.55
Show answer and explanation
Answer: D. 55
Middle value in an ordered list: 55
Question 4 · Biology
What is the main function of red blood cells?
- A.Fight infection
- B.Carry oxygen
- C.Digest food
- D.Filter waste
Show answer and explanation
Answer: B. Carry oxygen
Red blood cells transport oxygen throughout the body.
Question 5 · Chemistry
Which subatomic particles are found in the nucleus of an atom?
- A.Protons and neutrons
- B.Electrons
- C.Neutrons only
- D.Protons and electrons
Show answer and explanation
Answer: A. Protons and neutrons
Protons and neutrons are located in the atomic nucleus.
Question 6 · Reading in Context
Passage:
Throughout history, technological innovation has spurred economic transformation. From the printing press to the internet, new tools have reshaped the way people communicate, learn, and work.
What is the central idea of this passage?
- A.Communication has become faster due to innovation
- B.Economic change is often driven by new technologies
- C.The internet is the greatest invention
- D.Learning is more efficient today
Show answer and explanation
Answer: B. Economic change is often driven by new technologies
The passage discusses how innovation leads to economic transformation, making option B the main idea.
Question 7 · Additional Reading Concepts
Which of the following is an opinion rather than a fact?
- A.“The Earth orbits the Sun.”
- B.“Many believe this is the greatest novel ever written.”
- C.“Water boils at 100°C.”
- D.“The lungs are part of the respiratory system.”
Show answer and explanation
Answer: B. “Many believe this is the greatest novel ever written.”
Opinions are personal judgments, not universally proven facts.
Question 8 · Measurement
A medicine dosage is 250 mg. How many grams is this?
- A.2.5 g
- B.0.25 g
- C.25 g
- D.0.02 g
Show answer and explanation
Answer: B. 0.25 g
250÷1000=0.25 g
Question 9 · Science Cognitive Skills
We’ve completed Section 2: Mathematics (Questions 133–160).
A student hypothesizes that plants grow taller under blue light. What is the independent variable?
- A.Height of the plant
- B.Color of the light
- C.Type of plant
- D.Time spent measuring
Show answer and explanation
Answer: B. Color of the light
The independent variable is what is changed—here, the color of light.
Question 10 · Biology
Which term describes the maintenance of a stable internal environment?
- A.Homeostasis
- B.Evolution
- C.Metabolism
- D.Respiration
Show answer and explanation
Answer: A. Homeostasis
Homeostasis keeps internal conditions balanced despite external changes.

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