Quick Quiz 4

1.      An object with a volume of 600 Ltrs is neutrally buoyant in fresh water. What is its weight?

a.      618 Kg

b.      583 Kg

c.      600 Kg

d.      The answer cannot be determined

2.      An object is negatively buoyant in salt water. What would happen to this object if placed in fresh water?

a.      The answer cannot be determined

b.      It would float

c.      It would sink

d.      It would be neutral

3.      A neutrally buoyant object with a weight of 180 Kg is in salt water. What is its volume?

a.      180 Ltrs

b.      185 Ltrs

c.      175 Ltrs

d.      The answer cannot be determined

4.      An outboard motor weighing 325 Kg with a volume of 50 Ltrs has been dropped in salt water. What is the minimum amount of water you would need to displace using a lifting device to surface it?

a.      273.5 Ltrs

b.      276.5 Ltrs

c.      265.5 Ltrs

d.      285 Ltrs

5.      An object with a volume of 25 Ltrs, is neutrally buoyant in salt water. What is its weight?

a.      25.8 Kg

b.      24.3 Kg

c.      25 Kg

d.      The answer cannot be determined

6.      An object is positively buoyant in salt water. What would happen to that object if placed in fresh water?

a.      It would float

b.      It would sink

c.      It would be neutral

d.      The answer cannot be determined

7.      An object has been lost in fresh water, has a weight of 600 Kg and a volume of 400 Ltrs. How much air would have to be added to lifting device to bring it to the surface?

a.      188 Ltrs

b.      212Ltrs

c.      200 Ltrs

d.      218 Ltrs

8.      An object has a negative buoyancy of 60 Kg in salt water. Its volume if 35Ltrs. What is its weight?

a.      The answer cannot be determined

b.      96 Kg

c.      95 Kg

d.      34 Kg

9.      An object is neutrally buoyant in fresh water. What would happen to this object if placed in salt water?

a.      It would float

b.      It would sink

c.      It would be neutral

d.      The answer cannot be determined

10.      An object with a volume of 289 Ltrs lies in salt water. It weighs 333 Kg. How much air would what is the minimum size of lift bag that could be used to bring it to the surface?

a.      34 Ltrs

b.      52 Ltrs

c.      54 Ltrs

d.      44 Ltrs

11.      A barrel with a weight of 20 Kg and a volume of 100 Ltrs is in salt water. How much weight would have to be placed inside this barrel to make it 30 kg negative?

a.      83 Kg

b.      113 Kg

c.      107 Kg

d.      153 Kg

12.      An object with a weight of 60 Kg in neutral in fresh water. What is its volume?

a.      62 Ltrs

b.      58 Ltrs

c.      60 Ltrs

d.      The answer cannot be determined