Can you get a good score on the ASVAB by studing in one day?

It is highly unlikely to get a good score on the ASVAB by studying in one day. The ASVAB is a comprehensive exam that covers a wide range of subjects, including mathematics, electronics, and mechanical comprehension. To get a good score on the ASVAB, it is recommended that candidates study for several weeks or months in advance. Studying in one day will likely result in a low score.