CDX Section 8 Cummins

It is reported that there is a ____ decrease or more engine power output when NG is used.

NG fueled engines require a compression ratio of ______ to achieve the cylinder temperatures needed to ignite the fuel.

Which Cummins engine is designated for off-road applications?

What charging system fuel pressure is applied to all timing and metering solenoids?

If a truck can travel up a _____ degree slope in the lowest gear with engine at peak torque, it has 100% gradability.

The DEF dosing valve can deliver DEF droplets as small as __________ microns.

In which year did Cummins stop the production of the N-14?

What does Cummins call the timing gear composed of two gears that are spring loaded

Which injector nozzle design is utilized in the Cummins CELECT fuel system?

Which cylinder liner type is used within the Cummins L- and C- Series engines?

Engines are categorized within __________ broad categories depending on the work they perform.

The new X12 engine weighs __________ less than the ISX12 engine.

Which EGR system type is used by Cummins midrange diesel engines?

First generation XPI HPFPs used ceramic plungers, which have a __________ color.  

Which company did Cummins collaborate with in the development of the Cummins mid-range engine platforms?   

Which cold engine starting aid is used by all Cummins ISB, ISC, and ISL engines?

The hydraulic link that receives pressurized engine oil during a ISX15 engine braking is located within which component?

Which component is NOT associated with the XPI control system?

Under normal operating conditions the EGR gas temperatures are typically around __________.

What voltage is applied to operate the XPI fuel system injector?

The XPI fuel injector performance test uses __________ different simulated conditions.

At what percentage of DPF loading will the red stop MIL illuminate?

Where is the CELECT fuel system shutoff solenoid located?

Cummins HD engines installed in North American vehicles represents less than __________ of their global production.

What is the name of the Class 7 electric truck that Cummins developed in 2019?

In which year did the B-Series parent bore block switch from a cast iron construction to CGI construction? 

A XPI system high-pressure pump with two bumps on the cam lobe will produce a fuel pressure spike every ______ degrees.

Which material is used to make the electrode and ground straps of a spark plug that will be used in a NG fueled engine?

Which Cummins B-Series engine was the first in production?

A LNG fueled truck has a typical maximum range of __________ miles. 

What is the purpose of the window in a open window design piston?

How is the metering function controlled on the PT unit injector?

Which vehicle manufacturer offered their customers a Cummins diesel 5.0 L V-bank engine in their pickup trucks?

A technician should use which type of towel for fuel system work?

During which engine operating condition is the fuel pressure within the fuel rail the highest?

Which Chinese truck manufacturer did Cummins partner with to develop the current X12 engine? 

During exhaust braking, the VGT nozzle will be close to nearly __________ to increase exhaust backpressure.

A technician should store fuel system diagnostic and service tools in a __________.

Which component is NOT used in any of Cummins high-pressure EGR systems?

The fuel supply gear pump output pressure may approach ___________ psi in a PT system.

Which factor has no effect on PT gear type fuel transfer pump?

Cummins has now added a ___________ connector to access a separate CAN backbone called the private CAN. 

How many plungers are located within a HPI-TPI injector?

How many programmable governor types are available in the Interact software system under the heading governor switch?

At what temperature with the CNG pressure relief devise melt?