大工10秋《建筑施工》在线作业2（Big work 10 autumn construction work online homework 2）.docVIP

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大工10秋《建筑施工》在线作业2（Big work 10 autumn construction work online homework 2）.doc

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大工10秋《建筑施工》在线作业2（Big work 10 autumn construction work online homework 2）

大工10秋《建筑施工》在线作业2（Big work 10 autumn construction work online homework 2） Big work 10 autumn construction work online homework 2 First, radio questions (15 questions, 60 points) Score: 0 V 1. the strength of mortar is the cube test block with the side length of (mm), under the standard curing, the average compressive strength after (or) the age. A. 50,14 B. 35,28 C. 60.8,21 D. 70.7,28 The correct answer: D Full Score: 4 points: 0 2. sliding formwork, the height of the formwork depends on the speed of sliding and the time required for the concrete to reach the strength of the die, and generally take () M. A. 0.6~0.8 B. 0.8~1.0 C. 1.0~1.2 D. 1.2~1.4 The correct answer: C Full Score: 4 points: 0 3. the following preparations should not be made before concrete pouring is done. A. good acceptance of concealed works B. cleans mud and debris C. apply moisture to dry cohesive soil D. do vibrating compaction work The correct answer: D full marks: 4 points: 4, site construction, brick wall daily height should not exceed () m; rainy days of construction, the daily masonry height should not exceed () M. A. 1.4,1.6 B. 1.6,1.4 C. 1.2,1.8 D. 1.8,1.2 The correct answer: D Full Score: 4 points: 0 5. brick masonry, brick should be early () watering wet, so as not to brick excessive absorption of moisture in the mortar, and affect its bonding force. A. 24 hours B. 36 hours C. 1~2 days D. 3~4 days The correct answer: C Full Score: 4 points: 0 6. the lifting height of the Longmen frame is generally () m, and the lifting weight is () t. A. 15~30,0.6~1.0 B. 15~30,0.6~1.2 C. 20~30,0.8~1.0 D. 20~30,0.8~1.2 The correct answer: B Full Score: 4 points: 0 7. sintered common bricks are solid or porosity bricks made of clay, rock sheets, coal, stone and fly ash as raw materials. A. is not greater than 15% B. no less than 15% C. is not greater than 12% D. no less than 12% The correct answer: A Full Score: 4 points: 0 8. the determination of water retention capacity of mortar is expressed by the deg