OAT Test Dates

The Optometry Admission Test (OAT) is a computer-based exam, designed to measure general academic ability, comprehension of scientific ability, and perceptual ability.It is comprised of four multiple-choice sections, the longest of which is the Survey of Natural Sciences (90 minutes), followed by a reading comprehension section (50 minutes), followed by an optional 15-minute break. After the break, there will be a Physics portion (50 minutes) and, finally, a Quantitative Reasoning section (45 minutes).

Paper-based versions are administered, as well; however, applicants must submit for special accommodations at least one year prior to the test date. Tests generally cost $213. There is a partial fee waiver that may be submitted. (See the OAT Guide for more information.) Refunds are not given, and there is a rescheduling fee for changing test centers or times.

Computer-based exams are quite flexible regarding dates, times, and locations.All Prometric test centers will offer the OAT, but for assurance that the time and date of the appointment will coincide with the test taker’s preference, it is advised to register 90 days in advance.

Access the main guide to the OAT for more information on registration, fees, deadlines, eligibility, procedures, content, and more.

Math Practice Questions

Optometry Admission Testing Program
211 East Chicago Avenue, Suite 600
Chicago, IL 60611-2637
Phone: 800-232-2159

The main optometry Admission Test information page holds a variety of useful information regarding the advancement and promotion of the Association of Schools and Colleges of Optometry, including faculty directories, diversity grants, and more. By phone, contact: 314-991-4400.

OAT Biology Practice Questions

1. When an animal takes in more energy that it uses over an extended time, the extra chemical energy is stored as:

  1. Fat
  2. Starch
  3. Protein
  4. Enzyme
  5. Cholesterol

2. When Ca2+ channels open in a presynaptic cell (doesn’t the cell also depolarize?)

  1. The cell depolarizes
  2. The cell hyperpolarizes
  3. An action potential is propagated
  4. Synaptic vesicles release neurotransmitter
  5. The nerve signal is propagated by salutatory conduction

3. The chemical bonds between hydrogen and oxygen in an H2O molecule are an example of?

  1. Nonpolar covalent bonds
  2. Polar covalent bonds
  3. Ionic bonds
  4. Hydrogen bonds
  5. Van der Waals bonds

4. A population of pea plants has 25% dwarf plants and 75% tall. The tall allele, T is dominant to dwarf (t). What is the frequency of the T allele?

  1. 0.75
  2. 0.67
  3. 0.5
  4. 0.25
  5. 0.16

5. Which of the following is not a mechanism that contributes to cell differentiation and development in embryos?

  1. Asymmetrical cell division
  2. Asymmetrical cytoplasm distribution
  3. Organizer cells
  4. Location of cells on the lineage map
  5. Homeotic genes

OAT General Chemistry Practice Questions

1. A weather balloon is filled with 1000 mol of He gas at 25 °C and 101 kPa of pressure. What is the volume of the weather balloon?

  1. 24518 m3
  2. 24.5 m3
  3. 2 m3
  4. 245 m3

2. Gas X is in a cylinder at 1 atm of pressure and has a volume of 10 L at 0° C. Gas X spontaneously decomposes to gas Y, according to the equation:
X → 3Y
The temperature in the cylinder remains the same during the reaction. What is the pressure in the cylinder now?

  1. 1 atm
  2. 3 atm
  3. 4 atm
  4. Cannot be determined

3. 100 g of H3PO4 is dissolved in water, producing 400 mL of solution. What is the normality of the solution?

  1. 2.55 N
  2. 1.02 N
  3. 7.65 N
  4. 0.25 N

4. 100 mL of a 0.1 M solution of NaOH is neutralized to pH 7 with H2SO4. How many grams of H2SO4 are required to achieve this neutralization?

  1. 4.9 g
  2. 0.98 g
  3. 9.8 g
  4. 0.49 g

5. Atoms that are sp2 hybridized will have what sort of hybrid orbital geometry around them?

  1. Tetrahedral
  2. Trigonal planar
  3. Linear
  4. Angled

OAT Organic Chemistry Practice Questions

1. Jones oxidation of alcohols and aldehydes is used to produce carboxylic acids by reaction with

  1. K2Cr2O7 in concentrated H2SO4
  2. CrO3 in sulfuric acid
  3. KMnO4 in sulfuric acid
  4. MnO2 in hydrochloric acid

2. High-boiling liquids should be distilled under reduced pressure because

  1. they have high vapor pressures
  2. they have low melting points
  3. they can decompose at temperatures below their boiling points
  4. they do not boil at normal pressure

3. A monosaccharide is

  1. a cyclic ketone
  2. a branched chain aldehyde
  3. a simple sugar
  4. an α-hydroxycarboxylic acid

4. Removal of an α hydrogen atom from a carbonyl compound is favored by

  1. delocalization of the remaining negative charge
  2. enolate formation
  3. 3o amines
  4. none of the above

5. Substituent groups can be added to benzene rings by a

  1. Claisen condensation reaction
  2. Wittig reaction
  3. Friedel-Crafts reaction
  4. bicycloannulation reaction

OAT Physics Practice Questions

1. A piece of art of mass 200 kg is suspended from two nails so that the angle the hanging wires make is 40° with the horizontal. What is the tension in the hanging wires? (Note: Sin 40° = 0.64 and Cos 40° = 0.77).

  1. 1279 N
  2. 1524 N
  3. 1960 N
  4. 3048 N

2. Two cars driving in opposite directions collide. If you ignore friction and any other outside interactions, which of the following statements is always true?

  1. The total momentum is conserved.
  2. The sum of the potential and kinetic energy are conserved.
  3. The total velocity of the cars is conserved.
  4. The total impulse is conserved.

3. An automobile increased its speed uniformly from 20 m/s to 30 m/s at rate 5 m/s2. During this time it traveled 50 meters. How long did it take the automobile to make this change?

  1. 5 seconds
  2. 2 seconds
  3. 10 seconds
  4. Can’t be determined.

4. Which of the following demonstrations best illustrates Newton’s first law?

  1. Giving a billiard ball at rest on a smooth level table a small push and letting it roll on the table.
  2. Dragging a box on a table at a constant speed by exerting a force just enough to overcome the force of friction.
  3. Trying without success to move a heavy bureau or filing cabinet on the floor.
  4. Running a current through two parallel wires.

5. A lead sphere 10 centimeters in diameter is attached to a 10-meter wire and suspended from a beam in a large warehouse. A lead sphere 1 meter in diameter is placed next to the smaller sphere, almost touching. Ignoring friction, which statement is true?

  1. The small sphere will move slightly towards the big sphere, but the big sphere will not move.
  2. The big sphere will move slightly toward the small sphere, but the small sphere will not move.
  3. Neither sphere will move.
  4. Both spheres will move slightly towards each other.

OAT Quantitative Reasoning Practice Questions

1. A taxi service charges $5.50 for the first 1/5th of a mile, $1.50 for each additional 1/5th of a mile, and 20 cents per minute of waiting time. Joan took a cab from her place to a flower shop 8 miles away, where she bought a bouquet, then another 3.6 miles to her mother’s place. The driver had to wait 9 minutes while she bought the bouquet. What was the fare?

  1. $20
  2. $120.20
  3. $92.80
  4. $91

2. Given the equation , what is the value of y?

  1. 45
  2. 54

3. Which of the following expressions is equivalent to ?

  1. -3x +6

4. (2a2b x 3c3)(3a3b + 4c) =

  1. 5a6b2 + 12c4 x 9a3bc3 x 12c4
  2. 5a5b2 + 8a2bc x 9a3bc3 + 12c4
  3. 6a5b2 + 8a2bc x 9a3bc3 + 12c4
  4. 6a5b2 + 8a2bc x 9a3bc3 x 12c4

5. There are 80 mg / 0.8 ml in Acetaminophen Concentrated Infant Drops. If the proper dosage for a four year old child is 240 mg, how many milliliters should the child receive?

  1. 0.8 ml
  2. 1.6 ml
  3. 2.4 ml
  4. 3.2 ml

OAT Reading Comprehension Practice Questions

These questions are based on the following passage:
The phylum Annelida, named for the Latin word anellus, meaning “ring”, includes earthworms, leeches, and other similar organisms. In their typical form, these animals exhibit bilateral symmetry, a cylindrical cross section, and an elongate body divided externally into segments (metameres) by a series of rings (annuli). They are segmented internally as well, with most of the internal organs repeated in series in each segment. This organization is termed metamerism. Metameric segmentation is the distinguishing feature of this phylum, and provides it with a degree of evolutionary plasticity in that certain segments can be modified and specialized to perform specific functions. For example, in some species certain of the locomotor parapodia, or feet, may be modified for grasping, and some portions of the gut may evolve digestive specializations.

The gut is a straight, muscular tube that functions independently of the muscular activity in the body wall. The Annelida resemble the nematodes, another worm phylum, in possessing a fluid-filled internal cavity separating the gut from the body wall. In both phyla, this cavity is involved in locomotion. However, in the annelids this space is formed at a much later time during the development of the embryo, and presumably evolved much later as well. This fluid-filled internal space is called a true coelum.

The annelid excretory and circulatory systems are well developed, and some members of the phylum have evolved respiratory organs. The nervous system offers a particular example of metameric specialization. It is concentrated anteriorly into enlarged cerebral ganglia connected to a ventral nerve cord that extends posteriorly and is organized into repeating segmental ganglia.

This phylum includes members bearing adaptations required for aquatic (marine or freshwater) or terrestrial habitats. They may be free-living entities or exist as parasites. Among the best known are the earthworm Lumbricus, the water leech Hirudo, and the marine worm Nereis.

1. What is the purpose of this passage?

  1. To describe the annelid nervous system.
  2. To describe the annelid digestive system.
  3. To introduce distinctive features of annelid anatomy.
  4. To define metamerism.
  5. To tell readers about earthworms.

2. What is meant by the term metamerism?

  1. Segmentation of the anatomy
  2. A series of rings
  3. Bilateral symmetry
  4. Evolutionary plasticity
  5. Specialization

3. What is meant by the term parapodia?

  1. Specialization
  2. Grasping appendages
  3. Locomotion
  4. Metameres
  5. Feet

4. One evolutionary advantage of segmentation is that

  1. Segmented animals have many feet.
  2. Segmented animals have a fluid-filled coelum.
  3. Parts of some segments can become specialized to perform certain functions.
  4. Segments can evolve.
  5. Segments are separated by rings.

5. A group of worms other than the Annelida are called

  1. Lumbricus
  2. Nematodes
  3. Leeches
  4. Parapodia
  5. Metameres

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