ATI TEAS 7
Chemistry
1. Which of the following is a common property of bases?
- A. Conductivity in aqueous solutions
- B. Sour taste
- C. Reactivity with metals to produce hydrogen gas
- D. Turns red litmus paper blue
Correct answer: D
Rationale: Bases are substances that can accept protons or donate hydroxide ions in a chemical reaction. One common property of bases is that they turn red litmus paper blue. This is a classic test to distinguish between acids (which turn blue litmus paper red) and bases. Conductivity in aqueous solutions (Option A) is a property of both acids and bases, sour taste (Option B) is a property of acids, and reactivity with metals to produce hydrogen gas (Option C) is a property of acids, not bases.
2. Which sentence uses the present perfect continuous tense correctly?
- A. I have been working on this project since morning.
- B. She has finished the book already.
- C. They will be leaving for vacation tomorrow.
- D. He had been living in the city for ten years.
Correct answer: A
Rationale: Option A emphasizes the ongoing action (working) that started in the past and continues to the present.
3. A new invention claims to solve the energy crisis. What criteria should you use to evaluate this claim?
- A. The inventor's qualifications and credentials.
- B. The technology's cost-effectiveness and affordability.
- C. Evidence of independent testing and scientific validation.
- D. Testimonials from celebrities and public figures.
Correct answer: C
Rationale: When evaluating a claim about solving the energy crisis, it is crucial to look for evidence of independent testing and scientific validation. This ensures that the technology has been rigorously assessed and verified by experts in the field, providing credibility to the invention's effectiveness. Testimonials from celebrities and public figures (option D) may not provide reliable information about the technology's actual capabilities. The inventor's qualifications and credentials (option A) are important but do not guarantee the technology's success. Cost-effectiveness and affordability (option B) are significant factors but should be considered alongside scientific validation to assess the overall impact and feasibility of the invention.
4. Which phase of the employment process includes getting on the payroll and completing
- A. Orientation
- B. Induction
- C. Selection
- D. Recruitment
Correct answer: D
Rationale: The correct answer is D: Recruitment. Recruitment is the phase of the employment process where organizations actively seek out and attract potential candidates for job openings. This involves advertising the position, sourcing candidates, and conducting initial screenings. Once the recruitment process is complete and a candidate has been selected, they move on to the selection phase. Orientation, on the other hand, occurs after a candidate has been hired and involves familiarizing the new employee with the organization, its policies, and their role. Induction is often used interchangeably with orientation and refers to the process of integrating a new employee into the organization. Therefore, in this context, recruitment is the most appropriate phase that involves getting on the payroll and completing the initial steps to bring a new employee on board.
5. The epiglottis is a small flap of cartilage located near the base of the tongue. What is its role during swallowing?
- A. Initiates the swallowing reflex
- B. Grinds food into smaller pieces
- C. Covers the trachea to prevent food aspiration
- D. Stores saliva for lubrication
Correct answer: C
Rationale: The epiglottis is a crucial anatomical structure that covers the trachea during swallowing to prevent food aspiration. When we swallow, the epiglottis folds over the trachea, directing food and liquids down the esophagus instead of entering the airway. This action helps to ensure that the food and liquids go to the stomach for digestion and not into the lungs, which can lead to aspiration pneumonia, a serious condition. Therefore, option C, 'Covers the trachea to prevent food aspiration,' is the correct role of the epiglottis during swallowing.
6. Which word completes the sentence: "Despite the storm, the concert ____ went on."
- A. nevertheless
- B. however
- C. therefore
- D. nonetheless
Correct answer: D
Rationale: "Nonetheless" emphasizes the continuation of the concert despite the contrary circumstance.
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