In modern spark ignition engines, there are different active cylinder number applications to ensure fuel economy and low

emissions. $($TRUE or FALSE$)$

Turbocharging systems are applied in modern spark ignition engines to provide fuel economy and low emissions.

$($TRUE or FALSE$)$

In modern spark ignition engines, exhaust gas recirculation $($EGR$)$ systems are applied to provide fuel economy.

$($TRUE or FALSE$)$

Nitric oxide emissions are reduced with exhaust gas recirculation $($EGR$)$ systems. $($TRUE or FALSE$)$

Exhaust gas recirculation $($EGR$)$ systems are used especially in idle operation. $($TRUE or FALSE$)$

Since nitric oxide emissions increased in spark ignition engines with direct injection of fuel into the cylinder, operating with

extremely lean mixture, these engines were withdrawn from the market. $($TRUE or FALSE$)$

In spark ignition engines, catalyst efficiency control is provided by on$-$board diagnostic systems. $($TRUE or FALSE$)$

In spark ignition engines, oxygen sensor control is provided by on$-$board diagnostic systems. $($TRUE or FALSE$)$

In spark ignition engines, EGR system control is provided by on$-$board diagnostic systems. $($TRUE or FALSE$)$

In spark ignition engines, weather control is provided by on$-$board diagnostic systems. $($TRUE or FALSE$)$

In spark ignition engines, idle air$/$fuel equivalence coefficient control is provided by on$-$board diagnostic systems. $($TRUE or

FALSE$)$

Which of the following is not required from the fuel supply in diesel engines;

a$)$ Injecting a certain amount of fuel.

b$)$ Injecting fuel into the desired cylinder.

c$)$ Controlling the spray rate.

d$)$ Igniting the sprayed fuel.

e$)$ Being able to stop spraying suddenly.

Mechanical pumps used in diesel engines are divided into two: with and without cam shaft. $($TRUE or FALSE$)$

Sequential pumps in diesel engines generally have camshaft$-$activated pumps for each cylinder. $($TRUE or FALSE$)$

Distributor pumps in diesel engines have higher pressures and have a single pump. $($TRUE or FALSE$)$

Distributor pumps in diesel engines are preferred in small diesel engines. $($TRUE or FALSE$)$

Mechanically controlled common pressure chamber fuel supply systems in diesel engines are no longer used.

$($TRUE or FALSE$)$

The pressure in the electronically controlled common pressure chamber fuel supply systems in diesel engines has reached

$2200$ bar. $($TRUE or FALSE$)$

Fuel injection patterns in diesel engines vary depending on engine size. In large diesel engines, narrow cone angle and

surface evaporating fuel supply are preferred. $($TRUE or FALSE$)$

The pre$-$combustion chamber fuel supply system invented by Ricardo provided rapid combustion and was therefore applied

to automobiles. $($TRUE or FALSE$)$

Individual pump fuel supply systems are used in large diesel engines used in ships and electricity generation facilities.

$($TRUE or FALSE$)$

In sequential pumps of diesel engines, the fuel supply amount is provided by changing the stroke of the pump piston. $($TRUE

or FALSE$)$

In sequential pumps of diesel engines, the fuel supply amount is provided by rotating the pump piston around its axis.

$($TRUE or FALSE$)$