Q.11. The plasticity to mould bricks in suitable shape in contributed by
(a) Alumina
(b) Lime
(c) Magnesia
(d) Silica
Answer : option A
Q.12. The crushing strength of a first class brick is
(a) 3 N/mm2
(b) 5.5 N/mm2
(c) 10.5 N/mm2
(d) 7.5 N/mm2
Answer : option C
Q.13. Which one of the following has least bearing capacity?
(a) Loose gravel
(b) Hard rocks
(c) Soft rocks
(d) Compact gravel
Answer : option A
Q.14. Factor of safety is the ratio of:
(a) bearing stress and working stress
(b) yield stress and working stress
(c) tensile stress and working stress
(d) compressive stress and working stress
Answer : option B
Q.15. Which of the following acts as retarder for the concrete?
(a) Calcium chloride
(b) Calcium lignosulphonate
(c) Calcium stearate
(d) Aluminium powder
Answer : option B
Q.16. Identify the wrong statement
(a) Bulking of sand can go up to 40%
(b) Bulking of sand is maximum at 4.6% moisture content.
(c) Bulking of sand is considered in weight batching of concrete mix.
(d) Bulking of sand occurs due to free moisture film formation over sand grain
Answer : option C
Q.17. Strength based classification of bricks made on the basis of
(a) IS : 3101
(b) IS : 3102
(c) IS : 3495
(d) IS : 3496
Answer : option B
Q.18. Total number of elastic constants of an isotropic material are:
(a) 2
(b) 3
(c) 4
(d) 5
Answer : option A
Q.19. The stiffness of a spring is:
(a) load per coil of the spring
(b) load required to produce unit deflection
(c) load required to compress the spring up to shearing proportional limit
(d) the load required for breaking the spring
Answer : option B
Q.20. Creep of a material is:
(a) not being ductile
(b) to become brittle
(c) disappearance of deformation on removal load
(d) continued deformation with time under sustained loading
Answer : option D
Q.13. Which one of the following has least bearing capacity?
(a) Loose gravel
(b) Hard rocks
(c) Soft rocks
(d) Compact gravel
Answer : option A
Q.14. Factor of safety is the ratio of:
(a) bearing stress and working stress
(b) yield stress and working stress
(c) tensile stress and working stress
(d) compressive stress and working stress
Answer : option B
Q.15. Which of the following acts as retarder for the concrete?
(a) Calcium chloride
(b) Calcium lignosulphonate
(c) Calcium stearate
(d) Aluminium powder
Answer : option B
Q.16. Identify the wrong statement
(a) Bulking of sand can go up to 40%
(b) Bulking of sand is maximum at 4.6% moisture content.
(c) Bulking of sand is considered in weight batching of concrete mix.
(d) Bulking of sand occurs due to free moisture film formation over sand grain
Answer : option C
Q.17. Strength based classification of bricks made on the basis of
(a) IS : 3101
(b) IS : 3102
(c) IS : 3495
(d) IS : 3496
Answer : option B
Q.18. Total number of elastic constants of an isotropic material are:
(a) 2
(b) 3
(c) 4
(d) 5
Answer : option A
Q.19. The stiffness of a spring is:
(a) load per coil of the spring
(b) load required to produce unit deflection
(c) load required to compress the spring up to shearing proportional limit
(d) the load required for breaking the spring
Answer : option B
Q.20. Creep of a material is:
(a) not being ductile
(b) to become brittle
(c) disappearance of deformation on removal load
(d) continued deformation with time under sustained loading
Answer : option D
No comments:
Post a Comment