40851. The maximum thickness of concrete floor of a cement warehouse, is
40852. A construction joint is provided where
40853. The compaction of concrete, improves
40854. 5:8=x:24,then value of x is
40855. The light weight aggregates are obtained from
40856. If the depth of moist sand in a cylinder is 15 cm and the depth of the sand when fully inundated with water is 12 cm, the bulking of the moist sand, is
40857. A car is running at a speed of 45 km/hr for 3 hours.Then it runs at a speed of 55 km/hr for 6 hours.What is the average speed of car?
40858. Segregation is responsible for
40859. Addition of pozzolana to cement
40860. The datum temperature for maturity by Plowman, is
40861. 5 men and 8 women can finish a job in 10 days.While 3 men and 7 women can finish it in 12 days.In how many days can 11 men finish it?
40862. Permissible compressive strength of M 150 concrete grade is
40863. Slump test of concrete is a measure ofits
40864. Pozzolana cement is used with confidence for construction of
40865. Water cement ratio is
40866. Efflorescence in cement is caused due to an excess of
40867. If the engineer-in-charge approves, the 10 cm cubes may be used for the work test of concrete provided maximum nominal size of aggregate, does not exceed
40868. The diameter of the Vicat plunger is 10 mm and its length varies from
40869. The shrinkage of concrete
40870. The ratio of various ingredients (cement, sand, aggregates) in concrete of grade M 200, is
40871. Separation of water or water sand cement from a freshly concrete, is known
40872. Slump test of concrete is a meausre ofits
40873. Tricalcium aluminate (C3A)
40874. According to Water-Cement Ratio Law, the strength of workable plastic concrete
40875. Average age of 7 girls is When age of a boy is included the average becomes 13 years.Find the age of boy
40876. Saw dust can be rendered chemically inert by boiling it in water containing
40877. Endemic plants are defined as the plants growing in
40878. The factor which affects workability, is
40879. The cement whose strength is a little lower than the ordinary cement during the first three months but attains afterwards the same strength, is known as
40880. Rhinos are exploited for its
40881. Fall of a Sparrow is the autobiography of
40882. Pick up the incorrect statement applicable to the field test of good cement.
40883. The National Park declared for the protection of Nilgiri Tahr
40884. Joints in concrete structures, are provided
40885. If the effective working time is 7 hours and per batch time of concrete is 3 minutes, the output of a concrete mixer of 150 litre capacity, is
40886. The condition not applicable to water cement ratio law, is
40887. High temperature
40888. The bulk density of aggregates, is generally expressed as
40889. The grade of concrete M 150 means that compressive strength of a 15 cm cube after 28 days, is
40890. Allowable shear strength of concrete, depends upon
40891. The most useless aggregate is one whose surface texture is
40892. To obtain a very high strength concrete, use very fine grained
40893. Concrete containing
40894. An ordinary Portland cement when tested for its fineness, should not leave any residue on I.S. seive No. 9, more than
40895. The top diameter, bottom diameter and the height of a slump mould are :
40896. Workability of concrete mix with low water cement ratio is determined by
40897. While designing an air entrained concrete
40898. Pick up the incorrect statemnt from the following. For performing compressive strength test of cement
40899. For concreting tunnel linings, tran-portation of concrete is done by
40900. The operation of removing humps and hollows of uniform concrete surface, is known as
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