1. better workability
2. better resistance to freezing and thawing
3. lesser workability
4. less resistance to freezing and thawing The correct answer is:
A. (1) and (2)
B. (1)and(4)
C. ((2)and (3)
D. (3)and (4)
Related Mcqs:
- The slump recommended for mass concrete is about_______________?
A. 25 mm to 50 mm
B. 50 mm to 100 mm
C. 100 mm to 125 mm
D. 125 mm to 150 mm - Which of the following cements is suitable for use in massive concrete structures such as large dams ?
A. ordinary Portland cement
B. low heat cement
C. rapid hardening cement
D. sulphate resisting cement - The most common admixture which is used to accelerate the initial set of concrete is______________?
A. gypsum
B. calcium chloride
C. calcium carbonate
D. none of the above - The basic purpose of a retarder in concrete is_____________?
A. to increase the initial setting time of cement paste in concrete
B. to decrease the initial setting time of cement paste in concrete
C. to render the concrete more water tight
D. to improve the workability of concrete mix - The amount of water used for one kg of distemper is_____________?
A. 0.2 liter
B. 0.4 liter
C. 0.6 liter
D. 0.8 liter - The practical limit of moisture content achieved in air drying of timber is________________?
A. 5%
B. 15%
C. 25%
D. 35% - In which of the following pairs both trees yield soft wood ?
A. deodar and shishum
B. chir and sal
C. sal and teak
D. chir and deodar - The nominal size of the modular brick is_______________?
A. 190 mm x 90mmx 80 mm
B. 190 mm x 190 mm x 90 mm
C. 200 mm x 100 mm x 100 mm
D. 200 mm x 200 mm x 100 mm - Depth or height of the arch is the________________?
A. perpendicular distance between intra-dos and extrados
B. vertical distance between springing line and intrados
C. perpendicular distance between springing line and extrados
D. none of the above - The type of footing which is used to transmit heavy loads through steel columns is_______________?
A. raft foundation
B. grillage foundation
C. well foundation
D. isolated footing
