Free Test Prep OAT Exam Questions

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Total 280 Questions | Updated On: Jul 30, 2025

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Question 1

A lens forms an upright image 19 cm from a lens of an object 49 cm from the lens. The object and image are on the same side of the lens. What is the magnification of the image?

A : 0.39

B : 2.6

C : 13.7

D : 31.2

Answer: A

Question 2

Identify the incorrect pairing of hormone to site of secretion:

A : Glucagon – alpha cells

B : Angiotensinogen – liver

C : GnRH – anterior pituitary

D : TRH – hypothalamus

E : Oxytocin – posterior pituitary

Answer: C

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

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

Question 5

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

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Total 280 Questions | Updated On: Jul 30, 2025

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