NASCLA Commercial General Building Contractor Exam — All Questions
Alltopics.nascla_procurement_contractingtopics.nascla_general_requirementstopics.nascla_site_constructiontopics.nascla_concretetopics.nascla_metalstopics.nascla_mechanical_plumbingtopics.nascla_woodtopics.nascla_thermal_moisturetopics.nascla_finishestopics.nascla_masonrytopics.nascla_doors_windows_glazingtopics.nascla_electrical
1 questions
topics.nascla_masonry
Among the common ASTM C270 mortar types, which is the highest-strength mortar, typically used where greater compressive and lateral strength is required (such as below grade)?
- a.Type O
- b.Type N
- c.Type M✓
- d.Type K
Of the standard mortar types (M, S, N, O), Type M has the highest compressive strength and is used where high strength is needed, such as below-grade or load-bearing foundation masonry. Type N is a common general-purpose mortar; Type O is a low-strength interior mortar.Masonry mortar types (ASTM C270)