Radiation Safety Practice Exam

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Study for the Radiation Safety Exam. Test your knowledge with multiple choice questions, each equipped with hints and explanations. Prepare effectively and confidently!

Practice this question and more.

Which service utilizes the Mark 149 (MK149) containing depleted uranium?

U.S. Army
U.S. Coast Guard
U.S. Navy
U.S. Air Force

The correct answer is: U.S. Navy

The Mark 149 (MK149) is an anti-tank weapon system that utilizes depleted uranium in its armor-penetrating capabilities. The U.S. Navy employs this system as part of its arsenal, particularly for enhancing the effectiveness of its shore bombardment and naval gunfire support. Depleted uranium is favored in military applications due to its high density and ability to penetrate armor effectively. The U.S. Navy's operational focus on both ship-based and land-based applications for combat utility makes the use of the MK149 particularly relevant for naval strategies that involve engaging armored threats. This aligns with the Navy’s responsibilities in maintaining maritime security and supporting ground operations. The other branches of the military, such as the Army, Coast Guard, and Air Force, have their own specific weapon systems but do not utilize the MK149 in the same manner as the Navy does.