ATI TEAS 7
English Grammar
1. Which sentence uses comma splices incorrectly?
- A. The baker kneaded the dough, flour dusted her apron, and the oven warmed up.
- B. The mountains, shrouded in mist, seemed to disappear into the clouds.
- C. He arrived late, having forgotten his keys, and the meeting had already started.
- D. The movie, despite its flaws, was surprisingly enjoyable.
Correct answer: C
Rationale: Option (c) incorrectly combines two independent clauses with only a comma. A semicolon or conjunction is needed
2. Which part of the brain generates the rhythmic electrical activity responsible for brain waves?
- A. Cerebrum
- B. Thalamus
- C. Hypothalamus
- D. Reticular formation
Correct answer: D
Rationale: The correct answer is D: Reticular formation. The reticular formation is a network of neurons located in the brainstem that plays a crucial role in regulating consciousness and sleep-wake cycles. It generates the rhythmic electrical activity responsible for brain waves, which are measured by an electroencephalogram (EEG). While the cerebrum, thalamus, and hypothalamus are important parts of the brain, they do not directly generate brain waves like the reticular formation does. Understanding the specific functions of different brain regions is crucial for comprehending how the brain functions and regulates various physiological processes.
3. What is the principle behind optical fibers used in communication?
- A. Reflection of light within the fiber
- B. Refraction of light due to different densities within the fiber
- C. Total internal reflection guiding light through the fiber core
- D. Diffraction of light around bends in the fiber
Correct answer: C
Rationale: Optical fibers used in communication rely on the principle of total internal reflection guiding light through the fiber core. When light enters the fiber at a certain angle, it reflects off the boundary between the core and cladding, ensuring that the light remains trapped within the core and travels along the fiber without significant loss of signal. This total internal reflection allows for efficient transmission of light signals over long distances in optical communication systems.
4. What part of speech is the underlined word in the sentence "The students eagerly awaited the results"?
- A. Verb
- B. Noun
- C. Adjective
- D. Adverb
Correct answer: B
Rationale: Option B identifies "results" as the direct object of the verb "awaited," making it a noun.
5. She is hopeful that her unit will make a big turnaround in the succeeding months. Which of
- A. Wonders why things are not what it used to be
- B. Finds solutions to the problems
- C. Integrate the solutions to his day-to-day activities
- D. Selects the best change strategy
Correct answer: C
Rationale: The correct answer is C: 'Integrate the solutions to his day-to-day activities.' In the given scenario, the individual is hopeful about a turnaround in their unit, indicating a desire for positive change. Option C aligns with this by suggesting that the individual is not only finding solutions to the problems (as in option B) but also integrating these solutions into their daily routines. This integration is crucial for sustained improvement and long-term success, making it the most appropriate choice among the options provided.
6. Positive integers are greater than zero. Which of the following expressions results in the largest positive number?
- A. (2 + 3)^2
- B. 5 x 7 + 2
- C. 10^2 - 4^2
- D. (8 - 1) x 3
Correct answer: C
Rationale: 10^2 - 4^2 = 100 - 16 = 84
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