A piece weighing 3 kg in air was found to weigh 2.5 kg when submerged in water. Its specific gravity is (A) 1 (B) 5 (C) 7 (D) 6

A piece weighing 3 kg in air was found to weigh 2.5 kg when submerged in water. Its specific
gravity is
(A) 1
(B) 5
(C) 7
(D) 6
by

1 Answer

Answer :

Answer: Option D
by

Related questions

An odd shaped body weighing 7.5 kg and occupying 0.01 m3 volume will be completely submerged in a fluid having specific gravity of (A) 1 (B) 1.2 (C) 0.8 (D) 0.75

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Last Answer : Answer: Option D

A piece of metal weighing 55 grams weighs only 50 grams when suspended in water. What is its specific gravity?

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A piece of wood having weight 5 kg floats in water with 60% of its volume under the liquid. The specific gravity of wood is (A) 0.83 (B) 0.6 (C) 0.4 (D) 0.3

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A piece of metal of specific gravity 7 floats in mercury of specific gravity 13.6. What fraction of its volume is under mercury? (A) 0.5 (B) 0.4 (C) 0.515 (D) 0.5

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In Joule's experiment, an insulated container contains 20 kg of waterinitially at 25°C. It is stirred by an agitator, which is made to turn by aslowly falling body weighing 40 kg through a height of 4 m. The process isrepeated 500 times. The acceleration due to gravity is 9.8 ms-2. Neglectingthe heat capacity of agitator, the temperature of water (in °C) is(A) 40.5(B) 34.4(C) 26.8(D) 25

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Last Answer : (B) 34.4

A solid metallic block weighing 5 kg has an initial temperature of 500°C. 40 kg of water initially at 25°C is contained in a perfectly insulated tank. The metallic block is brought into contact with water. Both of them come to equilibrium. Specific heat of block material is 0.4 kJ.kg-1. K-1. Ignoring the effect of expansion and contraction and also the heat capacity to tank, the total entropy change in kJ.kg-1, K-1is (A) -1.87 (B) 0 (C) 1.26 (D) 3.91

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A piece of metal of specific gravity 13.6 is placed in mercury of specific gravity 13.6, what fraction of it volume is under mercury? (A) The metal piece will simply float over the mercury (B) The metal piece will be immersed in mercury by half (C) Whole of the metal piece will be immersed with its top surface just at mercury level (D) Metal piece will sink to the bottom

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Last Answer : Answer: Option C

A submerged body is said to be in a stable equilibrium, if its centre of gravity __________ the centre of buoyancy. (A) Coincides with (B) Lies below (C) Lies above (D) None of these

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Last Answer : Answer: Option B

The line of action of the buoyant force acts through the (A) Centroid of the volume of fluid vertically above the body (B) Centre of the volume of floating body (C) Center of gravity of any submerged body (D) Centroid of the displaced volume of fluid

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Last Answer : Answer: Option D

The sag of 50 m tape weighing 4 kg under 5 kg tension is roughly (A) 0.043 m (B) 0.053 m (C) 0.063 m (D) 0.083 m

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A pile is being driven with a drop hammer weighing 1800 kg and having a free fall of 1.00 m. If the penetration with last blow is 5 mm, the load carrying capacity of the pile, -according to the Engineering News formula, is (A) 100 tonnes (B) 50 tonnes (C) 20 tonnes (D) 10 tonnes

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Last Answer : (D) 10 tonnes

The breaking strength of a rope is 400 N. A fireman weighing 60 kg slides down the rope. The rope will break if a.107 dynes b.the acceleration is 7.5 m/s2 c.the acceleration is 1.2 m/s2 d.the acceleration is 3.1 m/s2 e.the slides with an acceleration of 15 m/s2

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Last Answer : c. the acceleration is 1.2 m/s2

A rectangular tank 10 m x 5 m in plan and 3 m deep is divided by a partition wall parallel to the shorter wall of the tank. One of the compartments contains water to a depth of 3 m, and the other a lighter liquid of specific gravity 0.75 to a depth of 2 m. The resultant pressure thrust on the partition wall is (a) 1000 kg (b) 1500 kg (c) 2000 kg (d) 2500 kg

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19. The density of a liquid in kg/m3 is numerically equal to its specific gravity. A) True B) False

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If 850 kg liquid occupies volume of one cubic meter, men 0.85 represents its (A) Specific weight (B) Specific mass (C) Specific gravity (D) Specific density

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A man weighing 60 kg jumps on a vehicle of weight 240 kg moving with a velocity of 36 km/hours. The velocity of the vehicle after the man has jumped would be a.Less than 3.6 km/hour b.3.6 km/hour c.More than 3.6 km/hour d.4.5 km/hour e.None of the above

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The porosity of a certain soil sample was found to be 80% and its specific gravity was 2:7; the critical hydraulic gradient will be estimated as (a) 0.34 (b) 0.92 (c) 1.0 (d) 1.5

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A body weighing one tonne falls through 8 cm on to a spring of stiffness 500 kg/cm the spring will be compressed through a.8 cm b.6 cm c.4 cm d.10 cm e.12 cm

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About 6.25 g of haemoglobin is produced and destroyed in the body each day and the total amount of haemoglobin in a normal healthy 70 kg weighing male adult is (A) 250 g (B) 150 g (C) 100 g (D) 70 g

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Last Answer : (C) Lies below its centre of buoyancy

The line of action of the buoyant force passes through the centre of gravity of the (A) Submerged body (B) Displaced volume of the fluid (C) Volume of fluid vertically above the body (D) Horizontal projection of the body

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For a stable equilibrium of a submerged body (where, G and B are centres of gravity & buoyancy respectively). (A) G is above B (B) B is above G (C) B & G coincide (D) None of these

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Last Answer : (B) B is above G

The line of action of the buoyant force acts through the (A) Centroid of the displaced volume of fluid (B) Centre of gravity of a submerged body (C) Centroid of the volume of any floating body (D) None of these

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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

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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 %

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If a rock weighing 2200 N is dropped from a height of 15 m what is its KE just before it hits the ground Remember weight is measured in newtons (N) and is equal to mass times gravity.?

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A man weighing 96 kg, consists of approximately _______________ litres of water. (a) 501 (b) 66.51 (c) 821 (d) 421

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A piece of wetted wood just floats in water. When placed in an oil of specific gravity 0.75, it will a.Float with upside down b.Sink c.Float for sometime and then sink d.Float with 3/4 of volume above the liquid surface e.Float with 1/4 of volume above the liquid level

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A man wished to move a block of size 3 m x 3 m weighing 80 kg. The coefficient of friction between the block and the ground is 0.27. Which of the following methods should be used? a.Slide along the ground by pushing b.Ask for cranes c.Pull it d.Tip it over e.Lift it bodily

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A crate weighing 40 kg rests on a cart moving with an acceleration W. The coefficient of friction between the cart and the crate is a.2.45 m/sec2 b.4.00 m/sec2 c.0.25 m/sec2 d.4.16 m/sec2 e.1.25 m/sec2

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Last Answer : a. 2.45 m/sec2

I can't walk with anything weighing 15 , 20 kg on my head, I think my back is breaking, what should I do ?

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As i was standing on a weighing machine inside a lift it recorded 50 kg wt. Suddenly for few seconds it recorded 45 kg wt.

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For a good building stone, its specific gravity should the greater than (A) 1.5 (B) 1.7 (C) 2.2 (D) 2.7

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Fundamental relationship between dry density ( d), specific gravity (G), water content ( ) and percentage of air voids (na) is: (A) d = (1 - na) G (1 + ) (B) d = (1 + na) G (1 + ) (C) d = (1 + na) G (1 - ) (D) d = (1 - na) G (1 - )

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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 bubbles was 1415 g and the weight of pycnometer filled with water alone was 1275 g. The moisture content in the soil is (A) 24.2 % (B) 18.2 % (C) 53.8 % (D) None of these

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A body whose true weight is 14 kg appears to weigh 15 kg when weighed with the help of a spring balance in a moving lift. The acceleration of the lift at the time was a.1 m/sec2 b.0.7 m/sec2 c.0.5 m/sec2 d.1.4 m/sec2 e.0.35 m/sec2

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Last Answer : b. 0.7 m/sec2