3. The text contains different mistakes: 4 — in spelling, 3 — in grammar. Cor-
rect the mistakes and rewrite the text.
Modern internal combustion engines can to be clasified in a number of
different ways. Several or all of these classifications can be use at the same
time to identify a given engine. Thus, a modern engine might be calles a re-
ciprocating, spark-ignition, four-stroke cycle, I-head, woter-cooled, gasoline,
multipoint port fuel injection avtomobile engine.
4. Answer these multiple-choice questions about engineering materials tech-
nology.
1.
What types can engines according to the type of ignition be divided into?
A. spark-ignition and compression-ignition engines
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B. cylinder-ignition and piston-ignition engines
C. valve-ignition and crankshaft-ignition engines
2.
What types can engines depending on the engine cycle be divided into
?
A. three-stroke cycle and five-stroke cycle
B. four stroke cycle and two-stroke cycle
C. six-stroke cycle and seven-stroke cycle
3.
What engine has two piston movements over one revolution for each cycle?
A. a rotary engine
B. a four stroke cycle engine
C. a two-stroke cycle engine
4.
How are the internal combustion engines called in accordance with the
valve location?
A. J-head engines and K-head engines
B. Y-head engines and B-head engines
C. I-head engines and L-head engines
5
. How are engines called with pistons positioned in a circular plane around
a circular crankshaft?
A. reciprocating engines
B. radial engines
C. rotary engines
6
. How are the opposed-cylinder engines often called?
A. house engines
B. flat engines
C. room engines
7
.
How many strokes occur in the Wankel engine?
A. two strokes
B. four strokes
C. eight strokes
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