Four-Stroke Cycle

Додано: 25 січня
Предмет: Англійська мова, 11 клас
10 запитань
Запитання 1

What type of engines do automobiles and tractors commonly have?

варіанти відповідей

Electric engines


Internal combustion engines

Steam engines

Hybrid engines

Запитання 2

How many operations are there in the four-stroke cycle?

варіанти відповідей

Two


Three

Four

Five

Запитання 3

What is the first operation in the four-stroke cycle, and what happens during this operation?

варіанти відповідей

Compression; air and fuel are drawn into the cylinder

Intake; air and fuel are drawn into the cylinder

Power stroke; fuel ignites and provides power

Exhaust; burnt gases are forced out


Запитання 4

What occurs during the compression stroke in the four-stroke cycle?

варіанти відповідей

Air and fuel are drawn into the cylinder


The exhaust valve opens

The piston compresses the air between the piston and the cylinder head

The piston moves down the cylinder

Запитання 5

What happens during the power stroke of the four-stroke cycle?



варіанти відповідей

Air and fuel are drawn into the cylinder

The piston compresses the air

The burnt gases are forced out

The fuel ignites, providing power, and the piston moves down

Запитання 6

When does the exhaust stroke occur in the four-stroke cycle?

варіанти відповідей

After the intake stroke

Before the compression stroke

After the power stroke

Before the power stroke

Запитання 7

What is the role of the exhaust valve during the exhaust stroke?

варіанти відповідей

Opens to draw in air and fuel

Closes to compress the air

Opens to force out burnt gases

Closes to ignite the fuel

Запитання 8

What types of engines exist for the four-stroke cycle, and which types do farm tractors commonly have?

варіанти відповідей

Electric and hybrid engines; both types

Diesel and steam engines; diesel engines

Diesel and gasoline engines; both types

Gasoline and electric engines; gasoline engines

Запитання 9

What ignites the fuel in diesel engines during the four-stroke cycle?

варіанти відповідей

Electric spark

Highly compressed air

Exhaust gases

Intake stroke

Запитання 10

In gasoline engines during the four-stroke cycle, what ignites the fuel?

варіанти відповідей

Electric spark

Highly compressed air

Exhaust gases

Intake stroke

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