To prevent the base of the wall from sliding forward, what technique is used?
a. extra weight is placed on top of wall
b. bottom course is buried
c. blocks are pinned together
d. soil is compacted behind wall
b. bottom course is buried
You might also like to view...
Core plugs are also called ________
A) Freeze plugs B) Frost plugs C) Weep plugs D) A or B
What is the pressure at the bottom of a water tank that has a cross section of 10 ft2 and is filled with water to a depth of 40 ft?
A) 40 ft × 0.433 lb/ft = 17 psi (rounded) B) 40 ft × 0.433 lb/ft × 10 ft2 = 170 psi (rounded) C) (40 ft × 10 ft2)/0.433 = 924 psi (rounded) D) (40 ft × 0.433 lb/ft)/10 ft2 = 1.7 psi (rounded)
Technician A uses a face shield when using any type of pressure or chemical cleaning. Technician B uses protective gloves when working with solvents. Which technician is correct?
A) Technician A only B) Technician B only C) Both technicians A and B D) Neither technician A nor B
Some illustrators use _____ for presentation drawings because of the ease of correcting errors.
A. sketch paper B. vellum C. polyester film D. illustration board