Description : To ensure constant moisture content in aggregates (A) Area of each aggregate pile should be large (B) Height of each aggregate pile should not exceed 1.50 m (C) Aggregate pile should be left for 24 hours before aggregates are used (D) All the above
Last Answer : Answer: Option D
Description : According to IS 399-1963, the weight of the timber is specified at (A) 8% moisture content (B) 10% moisture content (C) 12% moisture content (D) 14% moisture content
Last Answer : Answer: Option C
Description : The aggregate containing moisture in pores and having its surface dry, is known as (A) Moist aggregates (B) Very dry aggregates (C) Dry aggregates (D) Saturated surface dry aggregate
Description : The strength of durability of concrete depends upon. (a) Size of aggregates (b) Grading of aggregates (c) Moisture contents of aggregates (d) All of these.
Last Answer : (d) All of these.
Description : In case of a pipe of constant cross-sectional area, the maximum fluid velocity obtainable is (A) The velocity of sound (B) Dependent on its cross-sectional area (C) Dependent on fluid viscosity (D) Dependent on fluid density
Last Answer : (A) The velocity of sound
Description : _________ is a thermodynamic potential that measures the “useful” or process-initiating work obtainable from an isothermal, isobaric thermodynamic system. a. Du-Pont Potential b. Gibbs free energy c. Rabz-Eccles Energy d. Claussius Energy
Last Answer : Gibbs free energy
Description : In a horizontal plate type planter maximum obtainable value of cell fill is : A.Greater then 100% B.Less than 100% C.200% D.None of the above
Last Answer : A.Greater then 100%
Description : Pick out the wrong statement: (A) Change in barometric pressure does not affect the relative humidity (B) In case of a packed tower, the operating velocity is about half of the ... (D) The equilibrium moisture content of the solid can be reduced by increasing the absolute humidity
Last Answer : (D) The equilibrium moisture content of the solid can be reduced by increasing the absolute humidity
Description : A soil sample of mass specific gravity 1.92 has moisture content 30%. If the specific gravity of solids is 2.75, the void ratio, is (A) 0.858 (B) 0.860 (C) 0.862 (D) 0.864
Last Answer : Option C
Description : If the natural moisture content, the liquid limit and plastic limit of a soil sample are stated as 30.5%, 42.5% and 22.5% respectively, the ratio of liquidity index and plastic index, is (A) (B) ½ (C) 2 (D) 2½
Description : The factor which affects workability, is (A) Water content and its temperature (B) Shape and size of the aggregates (C) Air entraining agents (D) All the above
Last Answer : (D) All the above
Description : For given water content, workability decreases if the concrete aggregates contain an excess of (A) Thin particles (B) Flat particles (C) Elongated particles (D) All the above
Description : Pick up the correct statement from the following: (A) An increase in water content must be accompanied by an increase in cement content (B) Angular and rough aggregates reduce the workability of the ... The slump of the concrete mix decreases due to an increase in temperature (D) All the above
Description : Workability of concrete for a given water content is good if the aggregates, are (A) Rounded aggregate (B) Irregular aggregate (C) Angular aggregate (D) Flaky aggregate
Last Answer : Answer: Option A
Description : Workability of concrete for a given water content is good, if the aggregates are [ A ] Rounded [ B ] Irregular [ C ] Angular [ D ] Flaky
Last Answer : [ A ] Rounded
Description : Pick up the correct statement from the following: (A) The ratio of total volume of voids in soil aggregates to the total volume of aggregate, is called Porosity (B) Water retained by the interstices ... (C) Sum of the percentage of specific yield and specific retention is 100 (D) All the above
Description : While designing an air entrained concrete (A) Water cement ratio is reduced (B) Proportion of aggregates is reduced (C) An allowance for the entrained air is made (D) All the above
Description : According to Water-Cement Ratio Law, the strength of workable plastic concrete (A) Depends upon the amount of water used in the mix (B) Does not depend upon the quality of cement mixed with aggregates (C) Does not depend upon the quantity of cement mixed with aggregates (D) All the above
Description : If 50 kg of fine aggregates and 100 kg of coarse aggregates are mixed in a concrete whose water cement ratio is 0.6, the weight of water required for harsh mix, is (A) 8 kg (B) 10 kg (C) 12 kg (D) 14 kg
Description : If P, Y and Z are the weights of cement, fine aggregates and coarse aggregates respectively and W/C is the water cement ratio, the minimum quantity of water to be added to first batch, is obtained by the equation (A) 0.1P + 0.3Y + 0. ... + 0.2Y + 0.01Z = W/C P (D) 0.5P + 0.3Y + 0.01Z = W/C P
Last Answer : Answer: Option B
Description : Shrinkage in concrete can be reduced by using (i) Low water cement ratio (ii) More amount of cement in the concrete (iii) Presaturated aggregates [ A ] i [ B ] i and ii [ C ] i and iii [ D ] i, ii and iii
Last Answer : [ C ] i and iii
Description : The ratio of various ingredients (cement, sand, aggregates) in concrete of grade M 200, is (A) 1 : 2 : 4 (B) 1 : 3 : 6 (C) 1 : 1½ : 3 (D) 1 : 1 : 2
Last Answer : (C) 1 : 1½ : 3
Description : If the various concrete ingredients i.e. cement, sand and aggregates are in the ratio of 1:3:6, the grade of concrete, is (A) M 100 (B) M 150 (C) M 200 (D) M 250
Description : Cast irons are generally specified by their (A) Carbon content (B) Tensile strength (C) Hardness (D) Manufacturing process
Last Answer : (B) Tensile strength
Description : The amount of soil moisture or water content held in soil after excess water has drained away is called
Last Answer : Ans.Field capacity (FC)
Description : Moisture loss is determined by the (A) Humidity of combustion air (B) Moisture content of fuel (C) Both (A) and (B) (D) The water formed by combustion reaction
Last Answer : (C) Both (A) and (B)
Description : A compacted soil sample using 10% moisture content has a weight of 200 g and mass unit weight of 2.0 g/cm3 . If the specific gravity of soil particles and water are 2.7 and 1.0, the degree of saturation of the soil is (A) 11.1 % (B) 55.6 % (C) 69.6 % (D) None of these
Last Answer : (B) 55.6 %
Description : The property of a soil which permits water to percolate through it, is called (A) Moisture content (B) Permeability (C) Capillarity (D) None of these
Last Answer : (B) Permeability
Description : 260 g of wet soil was taken in a pycnometer jar of weight 400 g in order to find the moisture content in the soil, with specific gravity of soil particles 2.75. The weight of soil and remaining water filled in pycnometer without air ... is (A) 24.2 % (B) 18.2 % (C) 53.8 % (D) None of these
Description : Pick up the correct statement from the following: (A) The dry density reduces by addition of water after attaining optimum moisture content (B) The line joining the peak of three moisture content graphs ... be compacted to a very high density as compared to fine grained soils (D) All the above
Description : Pick up the correct statement from the following: (A) The portion of pellicular water which remains unutilised, is called hygroscopic water (B) The moisture content at which permanent wilting of plants ... point (C) The moisture deficiency will be different at different points (D) All the above
Description : Batching refers to (A) Controlling the total quantity at each batch (B) Weighing accurately, the quantity of each material for a job before mixing (C) Controlling the quantity of each material ... be added in each batch according to the moisture content of the materials being mixed in the batch
Last Answer : (C) Controlling the quantity of each material into each batch
Description : The property of a soil due to which water percolates through it is known as a) Porosity b) Permeability* c) Moisture content d) Capillarit
Last Answer : b) Permeability*
Description : Recipe help. What is the moisture content of white bread?
Last Answer : I would make the determination based on what you are doing with the croutons. Are you covering a casserole? Visually look to see if the single bag would spread out to do what you need it to do.
Description : What is the moisture content of seeds when germination starts ?
Last Answer : Germination starts when seed moisture is 35-60 %.
Description : What is the moisture content of seeds during harvesting from the field ?
Last Answer : Seed moisture is 18-40% at harvest time .
Description : How do you describe the relationship between moisture content and microbial activity as the soil is gradually increased from this dry state to a saturated one What factors dictate the shape of the cur?
Last Answer : Need answer
Description : Of the following statements about the major soil types, the incorrect one is : (a) alluvial soils are easy to plough (b) red soils are rich in phosphorus, nitrogen and lime content ( ... regions which receive heavy seasonal rainfall (d) black soil is highly retentive of moisture and very productive
Last Answer : Ans: (b)
Description : The moisture content of a soil at which plants permanently wilt and will not recover.
Last Answer : Ans.Permanent wilting point (PWP)
Description : Soil moisture content is determined by
Last Answer : Ans.Tensiometer (at 0.85 bar)
Description : Optimum moisture content for safe storage of mustard is
Last Answer : Ans.7-8%
Description : The moisture content at harvesting stage of wheat
Last Answer : Ans.25-30% 3. Maize
Description : The moisture content lines in psychrometric chart are also called as A. relative humidity lines B. specific humidity lines C. both a. and b. D. none of the above
Last Answer : ANSWER : B
Description : What is sensible cooling of air? A. the cooling in which sensible heat of air is removed in order to reduce temperature B. the cooling in which temperature of air is reduced without changing in its moisture content C. both a. and b. D. none of the above
Last Answer : ANSWER : C
Description : Velocity of sound in air does not change with the change of – (1) Temperature of air (2) Pressure of air (3) Moisture content in air (4) Wind in the direction of propagation of sound
Last Answer : (2) Pressure of air Explanation: The speed of sound in an ideal gas is independent of frequency, but it weakly depends on frequency for all real physical situations. It is a function of the ... ideal gas. Sound speed is slightly dependent on pressure only because air is not quite an ideal gas.
Description : Q No: 251 In a sludge digestion tank if the moisture content of sludge V1 litres is reduced from p1 % to p2 % the volume V2 is A. [(100 + P1)/(100 – P2)] V1 B. [(100 – P1)/(100 + P2)] V1 C. [(100 – P1)/(100 – P2)] V1 D. [(100 + P2)/(100 – P1)] V1
Last Answer : ANS: C
Description : The moisture content of sludge is reduced from 90% to 80% in a sludge digestion tank. The percentage decrease in the volume of sludge, is A. 25 % B. 50 % C. 10 % D. 5 %
Last Answer : ANS: B
Description : To maintain aerobic biological activity, the moisture content of the compost mass should be about A. 45 % B. 50 % C. 55 % D. 60 %
Description : The optimum moisture content in solids to be crushed/ground ranges from __________ percent. (A) 3 to 4 (B) 8 to 10 (C) 10 to 15 (D) 15 to 20
Last Answer : (A) 3 to 4
Description : The specific gravity of coal depends mainly on its __________ content. (A) Carbon (B) Volatile matter (C) Ash (D) Moisture
Last Answer : (C) Ash