Description : For ensuring quality of concrete, use (A) Single sized aggregates (B) Two sized aggregate (C) Graded aggregates (D) Coarse aggregates
Last Answer : (C) Graded aggregates
Description : Rapid hardening cement attains early strength due to (A) Larger proportion of lime grounded finer than normal cement (B) Lesser proportion of lime grounded coarser than normal cement (C) Lesser proportion of lime grounded finer than normal cement (D) Excess percentage of gypsum
Last Answer : Answer: Option A
Description : Pick up the incorrect statement from the following: (A) As a wave of sea water approaches the coast line, it is generally accompanied by a drift of water in the direction of wave advance (B) ... in the direction of the wave (D) The wave while receding carries finer particles out to deep water
Last Answer : (C) A falling hydraulic gradient occurs in the direction of the wave
Description : Pick up the correct statement from the following: (A) Sand consists of coarse particles of silica formed due to the disintegration of rocks (B) The grains of sand are not affected by frost (C) Sand ... and do not allow water to rise up between pores due to capillary action (D) All the above
Last Answer : Answer: Option D
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
Last Answer : (D) All the above
Description : An excess of flaky particles in concrete aggregates (A) Decreases the workability (B) Increases the quantity of water and sand (C) More than 15% are not desirable (D) All the above
Description : Concrete gains strength due to (A) Chemical reaction of cement with sand and coarse aggregates (B) Evaporation of water from concrete (C) Hydration of cement (D) All the above
Last Answer : Answer: Option C
Description : Concrete gains strength due to [ A ] Chemical reaction of cement with sand and coarse aggregates [ B ] Evaporation of water from concrete [ C ] Hydration of cement [ D ] All the above
Last Answer : [ C ] Hydration of cement
Description : The high strength of rapid hardening cement at early stage, is due to its (A) Finer grinding (B) Burning at high temperature (C) Increased lime cement (D) Higher content of tricalcium
Description : Early attainment of strength in rapid hardening cement is mainly due to (A) Gypsum (B) Finer grinding (C) Tri-calcium silicate (D) Tri-calcium aluminate
Last Answer : Answer: Option B
Description : The soil which contains finest grain particles, is (A) Coarse sand (B) Fine sand (C) Silt (D) Clay
Last Answer : (D) Clay
Description : Pick up the correct statement from the following: (A) The maximum size of a coarse aggregate, is 75 mm and minimum 4.75 mm (B) The maximum size of the fine aggregate, is 4.75 mm and minimum 0.075 mm ( ... having particles of size varying from 0.06 mm to 0.002 mm, is known as silt (D) All the ab
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 : Internal friction between the ingredients of concrete, is decreased by using (A) Less water (B) Fine aggregates (C) Rich mix (D) More water and coarse aggregates
Description : The internal friction between the ingredients to concrete is minimized by (a) Adopting coarse aggregates (b) Using more water (c) Reducing the surface area (d) All of these
Last Answer : (d) All of these
Description : Which of the following represents a carpet of sand-bitumen mix without coarse aggregates? (A) Mastic asphalt (B) Sheet asphalt (C) Bituminous carpet (D) Bituminous concrete
Description : Pick up the correct statement from the following: (A) Plain cement concrete is equally strong in compression as well as in tension (B) Slump test is performed to check concrete strength (C ... D) Fineness modulus is the index number expressing the relative sizes of both coarse and fine aggregates
Last Answer : Option D
Description : Which of the following statement is correct (a) The maximum size of coarse aggregate should not exceed one fourth of the minimum dimension of the plain concrete member. (b) The maximum size of coarse ... aggregates of 40mm, 20mm and 10mm sizes are commonly used for concrete works (d) All the above
Last Answer : (d) All the above
Description : The proportion of coarse aggregates to fire aggregates in structural concrete is usually [ A ] 0.50 - 1.25 [ B ] 1.25 - 4.50 [ C ] 1.50 - 2.50 [ D ] 0.25 - 0.75
Last Answer : [ C ] 1.50 - 2.50
Description : Select the incorrect statement (A) Lean mixes bleed more as compared to rich ones. (B) Bleeding can be minimized by adding pozzolana finer aggregate (C) Bleeding can be increased by addition 'of calcium chloride (D) None of the above
Description : Finer grinding of cement (A) Affects only the early development of strength (B) Affects only the ultimate strength (C) Both (A) and (B) (D) Does not affect the strength
Description : Two different channels, M and N, in two different sites are designed based on Lacey's theory, to carry same quantum of discharge. But the bed material of M is found to be finer than that of N. a) ... slope c) Channels M and N can have same longitudinal slopes d) Silting is more in M than in N
Last Answer : b) Channel N will have steeper longitudinal slope
Description : Which of the following statement(s) describe the effects of aging on wound healing? a. A finer, more cosmetic scar might be expected b. In vitro studies demonstrate decreased proliferative ... . Wound infection occurs more frequently in elderly patients due to diminished ability to fight infection
Last Answer : Answer: a, b, c There are important age-dependent aspects of wound healing. The elderly heal more slowly and with less scarring. There is a gradual attenuation of the inflammatory ... the sutures. There is no evidence to suggest that wound infections occur more commonly in elderly patients
Description : Ultra centrifuges are used for the separation of __________ solid particles. (A) Coarse (B) Fine (C) Colloidal (D) Dissolved
Last Answer : (C) Colloidal
Description : __________ are used for the separation of coarse particles from a slurry of fine particles. (A) Thickeners (B) Classifiers (C) Hydrocyclones (D) Decanters
Last Answer : (B) Classifiers
Description : Illustrate the effect of properties of coarse aggregates on compressive strength of concrete.
Last Answer : Effect of properties of coarse aggregates on compressive strength of concrete. i. Size of aggregate: If coarse aggregate particles are of large size (say 20 mm) in concrete mixture , then ... of strength. But if water absorption is less concrete becomes as per proportion giving required strength.
Description : Pick up the correct statement from the following: (A) Insufficient quantity of water makes the concrete mix harsh (B) Insufficient quantity of water makes the concrete unworkable (C) Excess quantity of water makes the concrete segregated (D) All the above
Description : Pick up the correct statement from the following: (A) The quality of water governs the strength of concrete (B) 10% excess of water reduces the strength of concrete by 15% (C) 30% excess of water reduces the strength of concrete by 50% (D) All the above
Description : If 30% excess water is added, the strength of concrete is reduced by (a) 30% (b) 40% (c) 50% (d) 60%
Last Answer : (c) 50%
Description : Excess quantity of water (a) Makes the concrete mix harsh (b) Makes the concrete mix unworkable (c) Causes segregation in concrete (d) Causes bleeding in concrete.
Last Answer : both c&d
Description : Pick up the correct statement from the following: (A) Bulking of sand is caused due to formation of a thin film of surface moisture (B) Fine sand bulks more than coarse sand (C) The volume of fully saturated sand, is equal to the volume of dry and loose sand (D) All the above
Description : What is an important requisite for fillers in dental composite restorative resins in load bearing areas: A. Sub micro sized particles B. High coefficient of thermal expansion C. High in content (High filler)
Last Answer : C. High in content (High filler)
Description : Which of the following is the most significant factor regarding filler in composite for increased strength: A. Particle size 1-3 micron B. Sub micron sized particles C. High concentration of the filler particles
Last Answer : C. High concentration of the filler particles
Description : The removal of excess air after placing concrete helps in increasing the strength of concrete by (a) 15 to 20% (b) 20 to 30% (c) 30 to 50% (d) 50 to 70%
Last Answer : (a) 15 to 20%
Description : Pick up the correct statement from the following: (A) According to the petrological characteristics, concrete aggregates are classified as heavy weight, normal weight and light weight (B) According to ... glassy, smooth, granular, rough, crystalline, honey combed and porous (D) All the above
Description : Why are holes needed for the finer grating of cheese?
Last Answer : I use the tiny holes for zesting and nutmeg. On cheese, never.
Description : (How) Do you differentiate between materialism and an appreciation for the finer things in life?
Last Answer : I don’t know if I’m a materialist or not, but I only believe in the physical, so I think I put more than enough emphasis on working to get materials in my life. I’m still young so who knows how I’ll feel once I get what I want, though.
Description : What is the Finer points of choice for industrial embroidery machines?
Last Answer : Single-head #embroidery machines are used mainly by experienced tailors, as they allow you to make #original patterns on any material. If in some household #sewing machines it is possible to ... most convenient to use are #embroidery machines with a display on which embroidery #parameters are set.
Description : What is hink pink for a finer cardigan?
Last Answer : Better Sweater
Description : A tube mill as compared to a ball mill (A) Employs smaller balls (B) Gives finer size reduction but consumes more power (C) Has larger length/diameter ratio (>2 as compared to 1 for ball mill) (D) All (A), (B) and (C)
Last Answer : (D) All (A), (B) and (C)
Description : In case of grinding in a ball mill (A) Wet grinding achieves a finer product size than dry grinding (B) Its capacity decreases with increasing fineness of the products (C) Grinding cost and power requirement increases with increasing fineness of the products (D) All (A), (B) and (C)
Description : Tube mill compared to ball mill (A) Produces finer products (B) Is long in comparison with its diameter (C) Uses smaller balls (D) All (A), (B) & (C)
Last Answer : (D) All (A), (B) & (C)
Description : As the product becomes finer, the energy required for grinding (A) Decreases (B) Increases (C) Is same as for coarser grinding (D) Is 1.5 times that for coarser grinding
Last Answer : (B) Increases
Description : Use of grinding aids results in the (A) Enhanced production rate (B) Finer products (C) Both (A) & (B) (D) Neither (A) nor (B)
Last Answer : (D) Neither (A) nor (B)
Description : For grinding of softer materials, the grinding wheel should have __________ grain size. (A) Finer (B) Coarser (C) Medium (D) Any type of
Last Answer : (B) Coarser
Description : You are given a sample of soil containing coarse grains to determine its water content, you will use (A) Pycnometer (B) Oven-drying method (C) Calcium carbide method (D) Alcohol method
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 : To prevent movement of moisture from sub-grade to road pavement at the same level as that of water-table, thickness of a cut off layer of coarse sand, is (A) 15 cm (B) 20 cm (C) 30 cm (D) 45 cm
Description : To prevent movement of moisture from sub-grade to road pavement on embankments about 0.6 m to 1 m higher than water table, the thickness of cut off layer of coarse sand used, is (A) 15 cm (B) 20 cm (C) 30 cm (D) None of these
Description : For the construction of water bound macadam roads, the correct sequence of operations after spreading coarse aggregates is (A) Dry rolling, wet rolling, application of screening and application of ... of filler (D) Dry rolling, application of screening, application of filler and wet rolling