The Architecture Puzzler
Created by Dave Guadagni
Architecture Puzzler #137
Of the four types of mortar — M, S, N, and O — M and S are usually used for load-bearing masonry and new construction where high strength is required. Type O is weak and usually only used in interiors. What is type N commonly used for?
Question from Last Week:
Architecture Puzzler #136
The average rated life of a lamp refers to the point where 50 percent of a test batch of lamps are still operating. The "lamp life" of an incandescent lamp is 750 to 1000 hours. How much greater is the lamp life of a halogen lamp? A 9-watt compact fluorescent has a lamp life of 10,000 hours. Is the lamp life of an 18-watt fluorescent greater or less?
Answer to Puzzler #136
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Dave Guadagni, AIA, is an architect with Robertson/Sherwood/Architects
Quizzical Pursuit is Copyright 2003, Dave Guadagni.