美国学术能力评估考试（SAT）
单选题A rectangular fish tank has a base 2 feet wide and 3 feet long. When the tank is partially filled with water, a solid cube with an edge length of 1 foot is placed in the tank. If no overflow of water from the tank is assumed, by how many inches will th
题目
1/6
1/2
2
3
4
参考答案和解析
When a solid cube with an edge length of 1 foot is placed in the fish tank, it displaces a volume of water that is equal to the volume of the cube, which is 1×1×1 or 1 cubic foot. If h represents the change in the number of feet in the height of the water in the fish tank, then
Volume of displaced water = 2×3 ×h = 1
h = 1/6 foot
Hence, the number of inches the level of the water in the tank will rise is 1/6 ×12 or 2.
相似问题和答案
第1题：
When removing the cap from a sounding tube on a ship，the sound of air escaping indicates the tank ______．
A.Is full
B.May be partially flooded
C.Level has dropped
D.Is completely flooded
第2题：
one meter from the tank bottom and one meter below the tank top
one half the ullage of the tank and one meter below the tank top
one half the ullage of the tank and one meter above the tank bottom
at three meter intervals from the tank top to the bottom
第3题：
A tank has been sealed and unventilated(不通风的) for a long period of time. Which of the following conditions does this indicate?
A.The tank is safe to enter
B.The tank is especially dangerous to enter
C.Carbon monoxide(一氧化物) is present
D.Water vapor present when the tank was sealed has oxidized(使氧化)
第4题：
one meter from the tank bottom and one meter below the tank top
one half the ullage of the tank and one meter below the tank top
one half the ullage of the tank and one meter above the tank bottom
at three meter intervals from the tank top
第5题：
for the release of air from the cooling water
providing expansion room for heated cooling water
a place for implementing water and water treatment agent
all of the above
第6题：
换料水（贮存）箱 refueling water (storage) tank
正确答案: 存放含硼水的水箱。换料时用箱中的水充满换料水池，换料后再打回箱中存放，同时可作为应急堆芯冷却系统和安全壳喷淋系统的水源。
第7题：
The tank must be gas freed
The tank must be ballasted
The tank must be vented to the atmosphere
The bypass valve must also be closed
第8题：
A tank 36 ft. by 36 ft. by 6 ft. is filled with water to a depth of 5 ft. If a bulkhead is placed in the center of the tank running fore-and-aft along the 36-foot axis，how will the value of the moment of inertia of the free surface be affected?
A.The moment of inertia would remain unchanged
B.The moment of inertia would be 1/4 its original value
C.The moment of inertia would be 1/2 the original value
D.None of the above
第9题：
Washing water should be recirculated if possible because it has the same electric potential as the cargo tank being cleaned
The hoses to portable cleaning machines should be disconnected before the machines are removed from the tank
The principal hazard with steaming cargo tanks is raising the ambient temperature above the flame point of the cargo residue
Steam cleaning and water washing are both capable of generating electrostatic charges within a tank
第10题：
leaky pipe
opened inlet valve
too much water in tank
None of the above