Which of the following is an example of a Low-Order Explosive?

A low-order explosive is characterized by a slower rate of reaction and a lower velocity of detonation than a high-order explosive. Pipe bombs fit into this category due to their construction, which typically utilizes a combination of low-order explosive materials that burn at a slower rate compared to high-order explosives.

Pipe bombs often use substances like black powder or other forms of low-order explosives, which produce a significant amount of pressure but do not create the shattering effects typical of high-order explosives like TNT or nitroglycerin. This slower reaction can result in a less violent explosion, allowing for more control over the blast, which is a characteristic of low-order explosives.

While TNT, nitroglycerin (often referred to as "nitro"), and ANFO (Ammonium Nitrate Fuel Oil) are more commonly classified as high-order explosives, the focus on the characteristics and operational mechanisms of these materials underscores the distinction between low and high-order explosives. Pipe bombs demonstrate the properties associated with low-order explosives, making them a correct example within this context.