Yes: Influenza b virus is a respiratory virus spread by coughing, etc. The two main types of influenza occurring during flu season are influenza a and influenza b. Influenza b often causes more GI symptoms.
Excavators are vehicles that are used on construction sites to move material. 1  slide 1 of 2. Excavators: Also Known as Diggers and Backhoes An excavator uses hydraulics or a wire rope pulley system to dig holes or trenches and is, therefore, often called a digger. 2  slide 2 of 2. Examples of Excavators.
Types of Excavators. Excavators are very popular machines used in construction and other civil engineering. There are several types of excavators used in various applications. Although they may be different in shape, size or functionality, they basically serve the same purposes. Excavators refer to industrial machines used to dig out soil from the ground. The term is synonymously used with backhoes or diggers.