Description : Wp and Wf are the weights of a cylinder containing partially compacted and fully compacted concrete. If the compaction factor (Wp/Wf ) is 0.95, the workability of concrete is (A) Extremely low (B) Very low (C) Low (D) High
Last Answer : Option D
Description : For concreting of heavily reinforced sections without vibration, the workability of concrete expressed as compacting factor should be (A) 0.75 - 0.80 (B) 0.80 - 0.85 (C) 0.85 - 0.92 (D) Above 0.92
Last Answer : Answer: Option D
Description : The specific gravity of petrol is about a. 0.65 b. 0.75 c. 0.85 d. 0.95
Last Answer : ANSWER b. 0.75
Description : Suggest the compaction factor for the following degree of workability.
Last Answer : Suggest the compaction factor for the following degree of workability.
Description : 52 Scythians (Sakas) invaded the Gandharan region in: A. 65 BC B. 75 BC C. 85 BC D. 95 BC
Last Answer : ANSWER: B
Description : Carbon percentage (by weight) in crude petroleum may be about (A) 65 (B) 75 (C) 85 (D) 95
Last Answer : (C) 85
Description : A trader sells 145 m of cloth for Rs 12325 at the profit of Rs 10 per metre of cloth. What is the cost price of 1 m of cloth? 1. Rs 65 2. Rs 75 3. Rs 95 4. Rs 85
Last Answer : 2. Rs 75
Description : Workability of concrete mix with low water cement ratio is determined by (A) Tensile strength test (B) Slump test (C) Compaction factor test (D) Flexural strength test
Last Answer : Answer: Option C
Description : The workability of concrete is expressed by (a) Water-cement ratio (b) Slump value (c) Compaction factor (d) Both (a) and (b)
Last Answer : (d) Both (a) and (b)
Description : As the workability increases compaction factor [ A ] Decreases [ B ] Increases [ C ] Remains same [ D ] None of the above
Last Answer : [ B ] Increases
Description : Workability of a concrete – mix is determined by (i)Slump cone test (ii)Compaction factor test (iii)Vee bee test [ A ] i [ B ] ii [ C ] i and ii [ D ] i, ii and iii
Last Answer : [ D ] i, ii and iii
Description : Workability of concrete mix with low water cement ratio is determined by [ A ] Tensile strength test [ B ] Slump cone test [ C ] Compaction factor test [ D ] Flexural strength test
Last Answer : [ C ] Compaction factor test
Description : While determining the workability of concrete mix, the compaction factor test is ------than the slump cone test [ A ] Less accurate [ B ] More accurate [ C ] Approximate method [ D ] None of the above
Last Answer : [ B ] More accurate
Description : A compaction factor of 0.75 indicates ________workability [ A ] Very low [ B ] Low [ C ] Medium [ D ] High
Last Answer : [ A ] Very low
Description : Describe the procedure for determination of workability by compaction factor method.
Last Answer : Procedure for determination of workability by compaction factor method: The procedure of determining the workability of concrete using compaction factor as per IS: 1199-1959 is as follows. 1. Take the freshly ... upon calculated C.F., the degree of workability can be designated as follows.
Description : What illumination factor is normally considered in computing parabolic antenna gain in microwave communications? A. 0.54 B. 0.65 C. 0.75 D. 0.85
Last Answer : A. 0.54
Description : Respiratory quotient of an average mixed diet is about (A) 0.65 (B) 0.7 (C) 0.75 (D) 0.85 MINERAL METABOLISM 201
Last Answer : Answer : D
Description : Average stock of firm is Rs. 80,000, the opening stock is Rs. 10,000 less than closing stock. Find opening stock. (A) Rs. 95,000 (B) Rs. 85,000 (C) Rs. 90,000 (D) Rs. 75,000
Last Answer : Answer: Rs. 75,000
Description : Water comprises approximately ____ percent of cleaning and sanitizing solutions. a. 80 to 89 c. 90 to 95 b. 95 to 99 d. 75 to 85
Last Answer : b. 95 to 99
Description : A soil sample of mass specific gravity 1.92 has moisture content 30%. If the specific gravity of solids is 2.75, the degree of saturation, is (A) 95.4 % (B) 95.5 % (C) 95.6 % (D) 95.7 %
Description : For high degree of workability, the slump value should vary between (a) 0 to 25mm (b) 25 to 50mm (c) 50 to 80mm (d) 80 to 100mm
Last Answer : (d) 80 to 100mm
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 : 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 : About ____ percent of the proteins of white flour are relatively insoluble. a. 55 c. 75 b. 65 d. 85
Last Answer : d. 85
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 : What is the characteristic impedance of a single wire with a diameter d= 0.25 mm placed at the center between grounded parallel planes separated by 1 mm apart. The wire is held by a material with a velocity factor of 0.75. A. 85 Ω B. 63 Ω C. 50 Ω D. 75 Ω
Last Answer : D. 75 Ω
Description : The coefficient of venturi-flume, generally, lies between (A) 0.3 to 0.45 (B) 0.50 to 0.75 (C) 0.75 to 0.95 (D) 0.95 to 1.0
Description : If d is the economic designed depth of a slab, the thickness of the cement concrete pavement slab at interior, is kept (A) 1.275 d (B) 1.125 d (C) 0.85 d (D) 0.75 d
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 : It takes 0.4 hrs to drive from the garage to the head of the route, 0.4 hrs to drive between the route head and disposal site and 0.25 hrs to return from the disposal site. It takes 0.2 hrs to offload a truck at the ... loading time as 30 minutes. (a) 4.15 hrs (b) 4.25 hrs (c) 4.75 hrs (d) 4.85 hrs
Last Answer : (a) 4.15 hrs
Description : If ‘W’ is the percentage of water required for normal consistency of cement, water to be added for determination of initial setting time is (a) 0.50 W (b) 0.62 W (c) 0.75 W (d) 0.85 W
Last Answer : (d) 0.85 W
Description : If the sides o a slab simply supported on its edges and spanning in two way are equal, then the maximum bending moment is multiplied by. (a) 0.25 (b) 0.50 (c) 0.75 (d) 0.85
Last Answer : (b) 0.50
Description : As per IS : 1172-1963, water required per head per day for average domestic purposes, is (A) 50 litres (B) 65 litres (C) 85 litres (D) 135 litres
Last Answer : (D) 135 litres
Description : The specific gravity of quartz, is (A) 2.65 (B) 2.72 (C) 2.85 (D) 2.90
Last Answer : (A) 2.65
Description : The specific gravity of Calcite is (A) 2.65 (B) 2.72 (C) 2.85 (D) 2.90
Last Answer : Answer: Option B
Description : A car is travelling at 90 km/hour on a rough road where the coefficient of friction between the road and the tyre is 0.5. The distance the car will skid before stopping when the brakes are jammed suddenly would be a.127.4 m b.95.55 m c.63.7 m d.31.85 m e.90 m
Last Answer : c. 63.7 m
Description : A cannon of weight 10 tonnes fires a shell of 50 kg with a muzzle velocity of 900 m/sec at an angle of 30?. The time taken for the shell to emerge from the barrel is 0.004 sec. The velocity of the cannon would be a.3.9 m/sec b.7.8 m/sec c.8.95 m/sec d.1.95 m/sec e.5.85 m/sec
Last Answer : a. 3.9 m/sec
Description : The ratio of the depth of flow to the diameter of the channel for maximum discharge in a circular channel in open channel flow is (A) 0.1 (B) 0.55 (C) 0.95 (D) 1.85
Last Answer : (C) 0.95
Description : How many % of adults primarily use their smartphones to access content/information? A. 0.85 B. 0.9 C. 0.95 D. 0.97
Last Answer : C. 0.95
Description : A steam calorimeter receives steam from a pipe at 0.1 MPa and 20°SH. For a pipe steam pressure of 2 MPa, what is the quality of the steam? a) 95.56% b) 70.10% c) 95.20% d) 85.10% Formula: h1 = hf1 + x1hfg1
Last Answer : 265.4°C, 430.7kJ/kg, 71.4kJ/kg, 1.0327kJ/(kg)(K),502.1 kJ/kg
Description : The factor which affects the compaction, is (A) Moisture content (B) Compacting content (C) Method of compaction (D) All the above
Last Answer : (D) All the above
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
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 : Design yield stress for steel in tension and compression is [ A ] 0.65 fy [ B ] 0.87 fy [ C ] 0.75 fy [ D ] None of the above
Last Answer : [ B ] 0.87 fy
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 : If He charges 17.95 for each CD and his expenses include 1250 for duplicating equipment and 0.65 for each blank CD which equation shows the profit (p) for selling n CD's?
Last Answer : What is the answer ?
Description : An area is declared drought affected if its mean rainfall is less than (A) 50 % (B) 60 % (C) 75 % (D) 85 %
Last Answer : (D) 85 %