LATEST CALIFORNIA PROFICIENCY EXAM (HiSET) PRACTICE EXAM TEST ACTUAL QUESTIONS AND CORRECT ANSWERS WITH COMPLETE VERIFIED EXPLANATIONS 2026.

LATEST CALIFORNIA PROFICIENCY EXAM (HiSET) PRACTICE
EXAM TEST ACTUAL QUESTIONS AND CORRECT ANSWERS
WITH COMPLETE VERIFIED EXPLANATIONS 2026.



1. Which of the following best describes the main idea of a passage?
A. A minor detail that supports the topic
B. The central point the author is trying to convey
C. A personal opinion of the reader
D. A summary of only the first paragraph
Correct Answer: B
Explanation: The main idea represents the central message or purpose
of the passage, not just a detail or partial summary.



2. What is the value of x in the equation 3x + 5 = 20?
A. 3
B. 5
C. 15
D. 25
Correct Answer: B
Explanation: Subtract 5 from both sides (15), then divide by 3 to get x =
5.



3. Which sentence is grammatically correct?
A. She don’t like apples.
B. She doesn’t likes apples.
C. She doesn’t like apples.
D. She not like apples.
Correct Answer: C
Explanation: “Doesn’t like” is the correct subject-verb agreement for
third-person singular.



4. What is the slope of the line passing through (2, 4) and (6, 12)?
A. 1
B. 2
C. 3
D. 4

, Correct Answer: B
Explanation: Slope = (12−4)/(6−2) = 8/4 = 2.



5. Which of the following is a primary source?
A. A textbook
B. A biography
C. A diary written during an event
D. A documentary
Correct Answer: C
Explanation: A diary written during an event is firsthand information,
making it a primary source.



6. What is the chemical symbol for sodium?
A. So
B. Sd
C. Na
D. Sn
Correct Answer: C
Explanation: Sodium’s chemical symbol is Na, derived from Latin
“natrium.”



7. Which word is closest in meaning to “abundant”?
A. Scarce
B. Plentiful
C. Limited
D. Rare
Correct Answer: B
Explanation: “Abundant” means plentiful or existing in large
quantities.



8. If a triangle has angles measuring 50°, 60°, and 70°, what type of triangle
is it?
A. Right
B. Obtuse
C. Acute
D. Equilateral

, Correct Answer: C
Explanation: All angles are less than 90°, so it is an acute triangle.



9. Which government branch interprets laws?
A. Legislative
B. Executive
C. Judicial
D. Administrative
Correct Answer: C
Explanation: The judicial branch is responsible for interpreting laws.



10.What is 25% of 200?
A. 25
B. 50
C. 75
D. 100
Correct Answer: B
Explanation: 25% of 200 = 0.25 × 200 = 50.



11.Which sentence uses correct punctuation?
A. Its raining outside.
B. It’s raining outside.
C. Its’ raining outside.
D. It raining outside.
Correct Answer: B
Explanation: “It’s” is the correct contraction for “it is.”



12.What is the perimeter of a rectangle with length 10 and width 5?
A. 30
B. 50
C. 20
D. 15
Correct Answer: A
Explanation: Perimeter = 2(10 + 5) = 30.

, 13.Which planet is closest to the Sun?
A. Venus
B. Earth
C. Mercury
D. Mars
Correct Answer: C
Explanation: Mercury is the closest planet to the Sun.



14.What is the purpose of an argumentative essay?
A. To entertain
B. To describe
C. To persuade
D. To summarize
Correct Answer: C
Explanation: Argumentative essays aim to persuade the reader using
evidence.



15.Solve: 2² × 3³
A. 36
B. 72
C. 108
D. 144
Correct Answer: C
Explanation: 2² = 4 and 3³ = 27; 4 × 27 = 108.



16.Which amendment abolished slavery in the United States?
A. 10th
B. 13th
C. 15th
D. 19th
Correct Answer: B
Explanation: The 13th Amendment abolished slavery.



17.What is the main function of the mitochondria?
A. Protein synthesis
B. Energy production