From which zone of PGCIL you have filled the Diploma Trainee Electrical form?
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(a) To give bulk to concrete (b) To improve thermal property of concrete (c) To increase workability of concrete (d) To bind sand and aggregate together by the process known as hydration of cement. Answer: (d)
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(a) cement + sand + aggregate + water +admixtures + air (b) cement + sand + aggregate + water +admixtures (c) cement + sand + aggregate + water (d) None of the above Answer: (a)
(a) Mortar (b) Paste (c) Slurry (d) None of the above Answer: (b)
(a) Pozzolana (b) Hydraulic lime (c) Fat lime (d) Artificial hydraulic lime Answer: (a)
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(a) Accelerates setting and reduces slaking (b) Accelerates setting as well as slaking (c) Reduces setting and accelerate slaking (d) Reduces setting and slaking of lime Answer: (a)
(a) Opaline shell (b) Fly ash (c) Diatomic earth (d) Pumice Answer: (b)
Eminently hydraulic lime (a) Sets quickly (b) Slakes slowly (c) Does not set under water (d) Is useful for white washing Answer: (b)
(a) Artificial hydraulic lime (b) Hydraulic lime (c) Quick lime (d) Eminently hydraulic lime Answer: (c)
With the use of pozzolana, (a) Tensile strength of concrete increases (b) Heat of hydration of concrete is reduced (c) Permeability of concrete increase (d) Leaching of concrete is reduced Answer: (c)