Free Test Prep OAT Exam Questions

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Total 280 Questions | Updated On: Aug 18, 2026

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Question 1

Which of the following statements about electricity flowing through a circuit can be correctly derived from Ohm’s law?

A : Increasing the voltage decreases the current if the resistance remains unchanged.

B : Increasing the current and the resistance decreases the voltage

C : Increasing the current increases the voltage if the resistance is uncharged.

D : Decreasing the resistance increases the current if the voltage remains uncharged

Answer: C

Question 2

Rank the following in the correct order of increasing wavelength:

A : X-rays, Gamma rays, Visible light, Radio waves, UV

B : Gamma rays, X-rays, Infrared, UV, Radio waves

C : Radio waves, Infrared, UV, X-rays, Gamma rays

D : X-rays, Gamma rays, UV, Infrared, Radio waves

E : Gamma rays, X-rays, UV, Infrared, Radio waves

Answer: A

Question 3

Which of the following is the largest organelle in an animal cell?

A : Mitochondrion

B : Chloroplast

C : Nucleus

D : Vacuole

E : Golgi apparatus

Answer: C

Question 4

Which of the following hormones is released by the posterior pituitary?

A : FSH

B : LH

C : Oxytocin

D : ACTH

E : Prolactin

Answer: C

Question 5

In IUPAC nomenclature, which of the following functional groups has the highest priority in numbering a parent chain?

A : Alkanes

B : Alkenes

C : Alkynes

D : Amines

E : Esters

Answer: A

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Total 280 Questions | Updated On: Aug 18, 2026

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