Study for the BICSI OSP Design Test. Prepare using multiple choice questions, with hints and explanations to enhance understanding. Succeed in your exam journey!

Multiple Choice

Missile bore (impact moling) uses a diameter range of which size?

Missile bore (impact moling) relies on a projectile launched through the ground to create a clearance that a conduit or ducts can be pulled through. The bore size is essentially the diameter of the missile, so practical field use falls in a modest range: about 2 to 6 inches. This size is large enough to accommodate typical telecom duct configurations while keeping surface disruption and equipment needs reasonable. Diameters smaller than this would not provide enough room to pull the conduit through, and much larger bores would add unnecessary disturbance and complexity. Therefore, the standard bore diameter range for this method is 2–6 inches.

Missile bore (impact moling) relies on a projectile launched through the ground to create a clearance that a conduit or ducts can be pulled through. The bore size is essentially the diameter of the missile, so practical field use falls in a modest range: about 2 to 6 inches. This size is large enough to accommodate typical telecom duct configurations while keeping surface disruption and equipment needs reasonable. Diameters smaller than this would not provide enough room to pull the conduit through, and much larger bores would add unnecessary disturbance and complexity. Therefore, the standard bore diameter range for this method is 2–6 inches.