Description : The heat generated in ordinary cement at the end of 3 days is about [ A ] 60 cal/g [ B ] 80 cal/g [ C ] 100 cal/g [ D ] 120 cal/g
Last Answer : [ B ] 80 cal/g
Description : If the rate of change of the super-elevation along a curved portion of a 7 metre wide road is 1 in 150 and the maximum super-elevation allowed is 1 in 15, the maximum length of the transition curve to be provided at either end, is (A) 65 m (B) 70 m (C) 75 m (D) 80 m
Last Answer : Answer: Option B
Description : According to the Income Tax act of 1961, the age of Super senior Citizens should be _______ A. 60 years B. 70 years C. 80 years D. 75 years E. 65 years
Last Answer : C. 80 years Explanation: According to the Income Tax act of 1961, the age of Super senior Citizens is 80 years.
Description : The sum of ages of family members (both children and parents) is 360 years.The total ages of children and parents are in the ratio 2:1 and the ages of wife and husband are in the ratio 5:7.What will be the age of husband? A.65 B.75 C.72 D.70
Last Answer : Answer : D (70) ExplanationSum of ages is 360 years.The ratio of children and parents ages is 2:1. Total age of parents = 360 x 1 / 3 = 120 years Ratio of wife and husband age is 5:7. Therefore, the age of husband = 120 x 7 / 12 = 70 Hence the age of husband is 70 years.
Description : The ordinary and maximum tolerance limit of sound by human being is – (1) 50 db to 70 db (decibel) (2) 60 db to 80 db (decibel) (3) 65 db to 75 db (decibel) (4) 70 db to 85 db (decibel)
Last Answer : (2) 60 db to 80 db (decibel) Explanation: Normal speech is about 60 dB (decibels). A dangerous sound is anything that is 80 dB or higher which can lead to hearing loss. At 70 dB or ... the risk of harm to healthy ears is negligible. Listening to sound above 80 decibels can cause profound deafness.
Description : Percentage of water in buffalo milk is:- a. 65-67 % b. 70-75 % c. 80-85 % d. 87-90 %
Last Answer : d. 87-90 %
Description : The ordinary and maximum tolerance limit of sound by human being is (1) 50 db to 70 db (decibel) (2) 60 db to 80 db (decibel) (3) 65 db to 75 db (decibel) (4) 70 db to 85 db (decibel)
Last Answer : 60 db to 80 db (decibel)
Description : Pick up the incorrect statement from the following: (A) Space between the exterior walls of a warehouse and bag piles should be 30 cm (B) Cement bags should preferably be piled on wooden planks (C) Width and height of the pile should not exceed 3 m and 2.70 m respectively (D) None of these
Last Answer : Answer: Option D
Description : For an ordinary Portland cement (A) Residual does not exceed 10% when sieved through IS Sieve No. 9 (B) Soundness varies from 5 to 10 mm (C) Initial setting time is not less than 30 minutes (D) Compressive stress after 7 days, is not less than 175 kg/cm2
Last Answer : (C) Initial setting time is not less than 30 minutes
Description : Consider the following statements: Maximum slenderness ratio of load-bearing masonry walls for a dwelling having more than two storeys shall not exceed. 1. 12, if lime mortar is used 2. 18, if cement-lime mortar 1:2:9 is used 3. 24, ... ? (a) 1 and 2 only b) 2 and 3 only c) 1 and 3 only d)1, 2 and 3
Last Answer : b) 2 and 3 only
Description : Maximum slenderness ratio for load-bearing masonry wall in cement mortar, as per IS code, shall not exceed. (a) 13 (b) 20 (c) 27 (d) 30
Last Answer : (c) 27
Description : In fineness test on cement, residue left on I.S. sieve no.9 shall not exceed __________ by weight of the sample of cement [ A ] 5% [ B ] 10% [ C ] 15% [ D ] 20%
Last Answer : [ B ] 10%
Description : In Portland Blast furnace slag cement, the blast furnace slag content shall not exceed [ A ] 50% [ B ] 65% [ C ] 80% [ D ] 90%
Last Answer : [ B ] 65%
Description : The Pitch of helixes in circular columns shall not exceed [ A ] 25 mm [ B ] 50 mm [ C ] 60 mm [ D ] 75 mm
Last Answer : [ D ] 75 mm
Description : Every member of National commission shall hold office for a term of ___ year or up to the age of ___ years, whichever is less. a) 5 ,65 b) 6,67 c) 5,67 d) 5,70
Last Answer : d) 5,70
Description : Every member of state commission shall hold office for a term of ___ year or up to the age of ___ years, whichever is less. a) 5 ,65 b) 6,67 c) 5,67 d) 5,70
Last Answer : c) 5,67
Description : The condition not applicable to water cement ratio law, is (A) Internal moisture conditions on hydration continue till complete strength is gained (B) Concrete specimens may be tested at any temperature (C) Concrete specimens need be of same age (D) Concrete specimens need be of same size
Description : Pick up the correct statement from the following: (A) The concrete gains strength due to hydration of cement (B) The concrete does not set at freezing point (C) The strength of concrete increases with its age (D) All the above
Description : Addition of pozzolana to cement (A) Decreases workability (B) Increases strength (C) Increases heat of hydration (D) None of these
Description : Addition of pozzolana to cement causes (A) Reduction in permeability (B) Loss of heat of hydration (C) Reduction in bleeding (D) All the above
Description : Di-calcium silicate (C2S) (A) Hydrates rapidly (B) Generates less heat of hydration (C) Hardens rapidly (D) Provides less ultimate strength to cement
Description : Tricalcium aluminate (C3A) (A) Reacts fast with water (B) Generates less heat of hydration (C) Causes initial setting and early strength of cement (D) Does not contribute to develop ultimate strength
Description : Pick up the incorrect statement from the following: (A) The degree of grinding of cement, is called fineness (B) The process of changing cement paste into hard mass, is known as setting of ... (D) The heat generated during chemical reaction of cement with water, is known as heat of hydration
Last Answer : Answer: Option C
Description : Portland pozzolana cement possesses (A) Higher resistance to chemical attack (B) Lower heat of hydration (C) Lower shrinkage on drying (D) All the above
Description : Addition of pozzolana to ordinary Portland cement increases (A) Bleeding (B) Shrinkage (C) Permeability (D) Heat of hydration
Description : The presence of dicalcium silicate in cement. (a) Hydrates the cement slowly. (b) Generates less heat of hydration. (c) Has more resistance to sulphate attack. (d) All of these
Last Answer : (d) All of these
Description : The presence of tricalcium silicate in cement (a) Hydrates the cement rapidly (b) Generates less heat of hydration. (c) Offer high resistance to sulphate attack (d) All of these
Last Answer : (a) Hydrates the cement rapidly
Description : According to Census 2001, what is the percentage of Indian population below the age 40? (1) 75 (2) 70 (3) 65 (4) 60
Last Answer : (1) 75 Explanation: As per Census 2001, the population below 15 years was 35 percent, > 60 years was 8 percent, and between 15 and 59 years of age was 57 percent of the total population. India has ... census, the percentage of Indian population below the age 6 is 13.1% and above the age 6 is 86.9
Description : Percentage content of silica in window glass, is (A) 40 to 45 (B) 50 to 55 (C) 60 to 65 (D) 70 to 75
Description : The percentage of alumina and silica in good fire clay vary respectively is (A) 25, 75 (B) 30, 70 (C) 35, 65 (D) All of these
Last Answer : Answer: Option A
Description : In India, which one of the following should be considered the right combination of the age in days and live body weight in kg for a lamb for its weaning ? (A) 20 days to 30 days and 6 kg to 7 kg (B) 45 days to 60 ... (D) 75 days to 90 days and 12 kg to 15 kg (E) 55 days to 70 days and 9 kg to 11 kg
Last Answer : (C) 105 days to 120 days and 18 kg to 21 kg
Description : According to IS: 456, maximum water-cement ratio should be [ A ] 0.45 [ B ] 0.55 [ C ] 0.65 [ D ] 0.75
Last Answer : [ B ] 0.55
Description : Generally during summer and khurq’ seasons annual plants produce bloom in how many days ? (a) 60 — 70 days (b) 70 —— 80 days (c) 70 — 75 days (d) 50 – 60 days
Last Answer : (c) 70 — 75 days
Description : A moist soil sample weighing 108 g has a volume of 60 cc. If water content is 25% and value of G = 2.52, the void ratio is (A) 0.55 (B) 0.65 (C) 0.75 (D) 0.80
Last Answer : (C) 0.75
Description : The sum of the percentage of tricalcium silicate and dicalcium silicate for Portland cement varies from. (a) 50 to 60% (b) 60 to 70% (c) 70 to 80% (d) 80 to 90%
Last Answer : (c) 70 to 80%
Description : X, Y, Z started a business by a share of 8:6:9. The time for which they invested was 6:7:8. The difference in the profit of X and Z is what % of difference in the profit of Zand Y? A) 65 B) 80 C) 55 D) 75
Last Answer : Answer: B) Ratio of investment =8:6:9 Ratio of time =6:7:8 Ratio of X,Y,Z=48:42:72 =8:7:12 (X-Z)/(Z-Y) = 4/5 *100 =80%
Description : (3) preventing rapid setting of cement Explanation: Portland cement clinker is a hydraulic material which shall consist of at least two-thirds by mass of calcium silicates, the remainder consisting of ... mixed with water by way of a complex series of chemical reactions still only partly understood.
Last Answer : Milk is a colloidal system in which: (1) Water is dispersed in fat (2) Fat is dispersed in water (3) Fat and water are dispersed in each other (4) Fat is dissolved
Description : If water content of a soil is 40%, G is 2.70 and void ratio is 1.35, the degree of saturation is (A) 70 % (B) 75 % (C) 80 % (D) 85 %
Description : If the radius of curvature of a hill road is 50 m, the percentage grade compensation should be (A) 60/R (B) 70/R (C) 75/R (D) 80/R
Description : The height of the sink of wash basin above floor level is kept (A) 60 cm (B) 70 cm (C) 75 cm to 80 cm (D) 80 cm
Last Answer : (C) 75 cm to 80 cm
Description : The minimum width of a septic tank is taken (A) 70 cm (B) 75 cm (C) 80 cm (D) 90 c
Last Answer : (B) 75 cm
Description : If is the percentage of water required for normal consistency, water to be added for determination of initial setting time, is (A) 0.70 P (B) 0.75 P (C) 0.80 P (D) 0.85 p
Description : The maximum time lag between the primer coat and the Ist finishing coat shall not exceed a) 3 days b) 7 days* c) 4 days d) 12 days
Last Answer : b) 7 days*
Description : The value of gas constant 'R' is (A) 1.987 cal/gm mole °K (B) 1.987 BTU/lb. mole °R (C) Both (A) and (B) (D) Neither (A) nor (B)
Last Answer : (C) Both (A) and (B)
Description : For a ribbed slab (A) Clear spacing between ribs shall not be greater than 4.5 cm (B) Width of the rib shall not be less than 7.5 cm (C) Overall depth of the slab shall not exceed four times the breadth of the rib (D) All the above
Description : When each particle of aggregates is thinly coated with cement paste, a heterogeneous solid is formed, which is known as (A) Hydration (B) Gel (C) Concrete (D) None of these
Description : Hydration of cement is due to chemical action of water with (A) Tricalcium silicate and dicalcium silicate (B) Dicalcium silicate and tricalcium aluminate (C) Tricalcium aluminate and tricalcium alumino ferrite (D) All the above
Description : Pick up the correct statement from the following: (A) Water cement paste hardens due to hydration (B) During hardening cement binds the aggregates together (C) Cement provides strength, durability and water tightness to the concrete (D) All the above