Which set of specifications is correct? Cement per cubic yard, water per gallon, ladder projection, and cleanout angle are:

Which set of specifications is correct? Cement per cubic yard, water per gallon, ladder projection, and cleanout angle are:

• A. 564 lb; 8.33 lb; 24 in; 135°
• B. 500 lb; 8.34 lb; 12 in; 120°
• C. 564 lb; 8.33 lb; 12 in; 135°
• D. 600 lb; 8.0 lb; 24 in; 150°

Answer: (A)

In pipeline practice, these specs are standard defaults used for common concrete mixes and trench safety. Cement per cubic yard corresponding to a six-sack mix is 564 pounds, which is a typical target for a strong, durable concrete used in underground work. Water weight per gallon is the density of water, about 8.33 pounds, a reliable figure for calculating water content in mixes. Ladder projection of 24 inches into the trench gives enough reach for safe access and egress, balancing working space and stability. Cleanout angle of 135 degrees is a common elbow orientation that helps maintain proper alignment with the line while providing access for maintenance or cleaning. Taken together, these values reflect conventional, widely used standards in this field.

In pipeline practice, these specs are standard defaults used for common concrete mixes and trench safety. Cement per cubic yard corresponding to a six-sack mix is 564 pounds, which is a typical target for a strong, durable concrete used in underground work. Water weight per gallon is the density of water, about 8.33 pounds, a reliable figure for calculating water content in mixes. Ladder projection of 24 inches into the trench gives enough reach for safe access and egress, balancing working space and stability. Cleanout angle of 135 degrees is a common elbow orientation that helps maintain proper alignment with the line while providing access for maintenance or cleaning. Taken together, these values reflect conventional, widely used standards in this field.