Stucco surface, made of Portland cement and sand mix, shrinks on gaining strength, introducing tensile stress in it. Therefore, it is reinforced with metal lath, when used on a (wood or steel) stud wall, to resist the tensile stress. Why is a lath not required when stucco is applied on a CMU or reinforced concrete wall?
What will be an ideal response?
Because the stucco base coat becomes integral with CMU or RC wall, making it function as one thick, composite
wall, providing sufficient tensile strength by virtue of the combined thickness of CMU-plus-base -coat.
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In a way, mules are themselves a genetic abnormality. Horses have 64 chromosomes (32 pairs); donkeys have 62 (31 pairs). Mules and hinnies have ____________________ chromosomes.
Fill in the blank(s) with the appropriate word(s).
Mobilization includes _____.
a. determining the availability of personnel b. removing equipment from storage c. coordinating material deliveries for setup d. assigning specific responsibilities to members of the project team
When the LED on a smart switch first flashes, then stays illuminated, what does that tell the operator?
A. switch command is in the process of being effected B. switch command cannot be effected C. switch command has been completed D. switch is defective
Technician A says that the term volatile, when talking about VOCs, refers to chemicals that evaporate easily. Technician B says that organic, when talking about VOCs, refers to chemicals that contain carbon. Who is correct?
A. Technician A only B. Technician B only C. Both Technicians A and B D. Neither Technician A nor B