1. .1: Centre of gravity of volume of liquid displaced is called.
(A) Centre of buoyancy
(B) Metacentric
(C) Centroid
(D) Centre of gravity
2. .2: A body is said to be in stable equilibrium when its Centre of gravity lies at the position as compared with its metacenter.
(A) Anywhere
(B) Coincides
(C) Above
(D) Below
3. .3: The distance between Centre of gravity of a floating body and its metacenter is called as.
(A) Metacentric depth
(B) Full height
(C) Full depth
(D) Gravity depth
4. .4: In case of stable equilibrium metacenter lies at the position as compared with Centre of gravity.
(A) Above
(B) Coincide
(C) Below
(D) Anywhere
5. .5: Depth of immersion of a floating body is called as
(A) Toe
(B) Draft
(C) Heel
(D) Buoyancy
6. .6: The resultant upward pressure experienced by a floating body is called.
(A) Viscosity
(B) Adhesion
(C) Buoyancy
(D) Raising
7. .7: Metacentric height in meters of a merchant ship is kept as
(A) 1.5 to 4.5 m
(B) 0.30 to 1.00 m
(C) 1.00 to 1.5 m
(D) 0.00 to 0.30 m
8. .8: A floating body has zero metacenter height, it will be in such type of equilibrium:
(A) Stable
(B) Neutral
(C) Unstable
(D) Any one
9. .9: The value of minimum moment of inertia of the plate size 6 cm x 8 cm
(A) 256 cm⁴
(B) 240 cm⁴
(C) 512 cm⁴
(D) 144 cm⁴
10. .10: A piece of wood of sp. gravity of 0.6 and 10 cm deep is floating in fresh water; its immersed depth will be.
(A) 6 cm
(B) 5 cm
(C) 8 cm
(D) 10 cm
11. .11: A body will sink down if its specific gravity is ____ than that of liquid.
(A) Less
(B) Greater
(C) Equal
(D) No effect
12. .12: Formula used to determine metacentric height “GM” of a floating body by experimental method.
(A) GM = I/V
(B) GM = BM - BG
(C) w·d / w·tan θ
(D) GM = w·d / W·tan θ