The exhaust boilers are used to recover some of （） carried in the exhaust gas from the main engine.
In a two-stroke engine, there are always a series of openings known as （）, and in some circumstances, there are also openings known as （）, in the part of the cylinder liner.
The cylinder liner forming the cylinder wall and the inside of the water jacket is called a（）
In order to distribute the side pressures over a wide area of the cylinder walls and liners, which of the listed types of pistons are used in modem low pressure air compressors?（）
An efficient seal between the cylinder block and cylinder heads on many diesel engines is obtained with（）
The cylinder head, cylinder liner and （） form the combustion chamber.
All the rings are slightly rounded on their external top and bottom edges to keep the oil film on the cylinder liner during （） for new piston rings.
Diesel engine cylinder head test cocks are used to（）
Cracks in cylinder and cylinder covers may （） from unequal heating.
Fusible plugs are installed in fire-tube boilers to （）.
The cylinder covers and the liners are bolted together by means of studs （） the cylinder frames.
How are the pressure and temperature affected in a diesel engine cylinder during compression?（）
Auxiliary boilers are divided into several classifications, one of which is （）.
Diesel engine cylinder head test cocks are used to （）
The gas loads on the engine structure are constrained by means of hydraulically preloaded （） which connect the bed plate, frame sections and cylinder jackets into a single unit.
The cooling water jacket is common to all the cylinders but there are often （） to ensure that each cylinder receives the right amount and flow of water.
Which of the following statements concerning the water tube and fire tube boilers is not true?（）
Bottom blow valves are installed on auxiliary water-tube boilers to （）
A-frames are mounted on the bed plate and support （） and cylinder block.
In each cylinder cover there are two or three holes for （）
Mechanical lubricators for diesel engine cylinders are usually small reciprocating pumps which are （）.
The cylinder covers and the liners are bolted together by means of （）.
Cylinders of marine diesel engines are normally cooled by （）.
Auxiliary boilers are divided into several classifications, one of which is（）
