A: change from diesel oil to heavy fuel oil for mail engine
B: pump out bilge water
C: change sea chest from lower level one to high level one
D: test emergency generator
举一反三
- When the ships is going to enter into the harbor, ____. A: change from heavy fuel oil to diesel oil for main engine B: pump out bilge water C: change sea chest form high level one to lower level one D: test emergency generator
- Which of the following conditions indicates the dilution of diesel engine lube oil by fuel oil?（） A: Water discharging from the water outlet of the lube oil purifier B: Fuel oil discharging from the water outlet of the lube oil purifier C: Lube oil discharging from the water outlet of the lube oil purifier D: A change in the lube oil viscosity
- The in the lubricating system draws oil from the oil pan and sends it to all working parts in the engine. A: fuel pump B: oil pump C: diesel pump D: gasoline pump
- In one day, Sue can change the oil on 20 cars or change the tires on 20 cars. In one day, Fred can change the oil on 20 cars or change the tires on 10 cars. Sue and Fred can gain from trade if Sue changes the ( ) and Fred changes the ( ). A: tires; oil B: oil; oil C: oil; tires D: tires; tires
- _____is generally not included in the fuel used for the main engine of the ship. A: Diesel oil B: Heavy oil C: Low sulfur heavy oil D: Gasoline
内容
- 0
The economy's inflation rate is the（ ）. A: change in the gross domestic product from the previous period. B: percentage change in the price level from the previous period. C: price level in the current period. D: change in the price level from the previous period.
- 1
If there is water in fuel oil， the revolution of the engine will （）.
- 2
When economists talk about growth in the economy, they measure that growth as the A: absolute change in nominal GDP from one period to another. B: percentage change in nominal GDP from one period to another. C: absolute change in real GDP from one period to another. D: percentage change in real GDP from one period to another.
- 3
Dirt in the fuel oil system of a diesel engine can cause （）.
- 4
Check the engine oil level and add if necessary．