40902. The type of aggregates not suitable for high strength concrete and for pavements subjected to tension, is
40903. For the construction of R.C.C. slabs, columns, beams, walls, etc. the grade of concrete mix used, is
40904. The type of aggregates of same nominal size, which contain less voids when compacted, are
40905. For the construction of cement con-certe dams, the maximum permissible size of the aggregates, is
40906. Permissible compressive strength of M 200 concrete grade is
40907. For preparing a test-specimen, it is necessary
40908. The aggregate containing moisture in pores and having its suface dry, is known as
40909. The commercial name of white and coloured cement in India, is
40910. The adaptation sunken stomata are found in
40911. To hydrate 500kg of cement full water needed, is
40912. Concrete gains strength due to
40913. If aggregates completely pass through a sieve of size 75 mm and are retained on a sieve of size 60 mm, the particular aggregate will be flaky if its minimum dimension is less than
40914. Non-uniform compaction may cause the concrete
40915. Log Angles machine is used to test the aggregate for
40916. If fineness modulus of sand is 2.5, it is graded as
40917. Pozzolanic properties exist in
40918. An aggregate which passes through 25 mm I.S. sieve and is retained on 20 mm sieve, is said to be flaky if its least dimension is less than
40919. Expansion joints are provided if the length of concrete structures exceeds
40920. The plant community that grow in a marshy saline habitat are called
40921. If the slump of a concrete mix is 60 mm, its workability is
40922. The ecologically odd one among the plant listed
40923. The strength and quality of concrete, depend upon:
40924. The process of mixing, transporting, placing and compacting concrete using Ordinary Port land Cement should not take more than
40925. Pick up the incorrect statement from the following. While performing preliminary test on concrete
40926. Sand requiring a high water cement ratio, belongs to
40927. Ordinary Portland cement is manufactured from
40928. A flaky aggregate is said to be elongated if its length is
40929. To prevent segregation, the maximum height for placing concrete, is
40930. If the various concrete ingredients i.e. cement, sand and aggregates are in the ratio of 1:3:6, the grade of concrete, is
40931. Water cement ratio is generally expressed in volume of water required per
40932. For a good concrete
40933. If the effective plan area of a warehouse is 54 sq. m, and maximum height of piles permitted is 270 cm, the number of cement bags to be stored, is
40934. Gypsum is added for
40935. A concrete having a slump of 6.5 cm, is said to be
40936. Strength of concrete with passage of time
40937. Cement used for normal concrete construction, is obtained by burning a mixture of
40938. The abbreviation MAB stands for
40939. The population of the critically endangered Great Indian Bustard has been declining due to
40940. Higher workability of concrete is required if the structure is
40941. Setting time of cement increases by adding
40942. The dimensions of a 35 litre forma for measuring aggregates by volume, are :
40943. The shuttering of a hall measuring 4 m x 5 m, can be removed after
40944. In ecology the term’carrying capacity’of a species means
40945. If 50 kg of fine aggregates and 100 kg of coarse agregates are mixed in a concrete whose water cement ratio is 0.6, the weight of water required for harsh mix, is
40946. The entrained air in concrete
40947. Which of the following regions in India is a biodiversity hotspot?
40948. As per Wildlife Protection Act,1972 following is not a protected area category
40949. In slump test, each layer of concrete is compacted by a steel rod 60 cm long and of 16 mm diameter for
40950. If the average compressive strength is 4000 kg/cm2 and standard deviation is 500, the co-efficient of variation is
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