Which оf the fоllоwing stаtements is/аre true in regаrds to kilovoltage (kV)? An increase in kilovoltage applied to the x-ray tube increases the quality of the x-ray beam and patient absorption. Disadvantages of using low kV technical factors include decreased penetration and lower contrast. A change in photon energy will have an impact on radiographic contrast and optical density. A decrease in kiovoltage will result in decreased exposure latitude, higher contrast, and decrease in density.