CRDe PRE_TEST ZCCM

Write the full form of OBD ?

• On Board Diagnostic
• One Band Diode
• One Band Direction
• DON’T KNOW

What is Injector Quantity Adjustment (IQA) ?

• IQA is maping & coding of individual injector characteristics

• IQA is selection of good injectors

• IQA is selection of bad & good injectors

• DON’T KNOW

Within an engine CRDe, what will happen if we interchange the injector assembly ?

• performance will deteriote

• engine will not start

• Starting problem will come

• DON’T KNOW

In an CRDe engine, is it possible to push start the tractor without battery ?

• No, it is not possible

• Yes, it is possible in first gear

• Yes, it is possible in slopes

• DON’T KNOW

What is a SENSOR ?

• convert physical / mechanical quantities to electrical signals

• converting the electrical energy into mechanical quantities

• senses the actuation of a device

• DON’T KNOW

What is an ACTUATOR ?

• converting the electrical energy into mechanical quantities

• convert physical / mechanical quantities to electrical signals

• senses the actuation of a device

• DON’T KNOW

Why PILOT Injection is used in CRDe system ?

• to reduce NOISE

• to reduce EMISSION

• to reduce VIBRATION
• DON’T KNOW

Why POST Injection is used in CRDe system ?

• to reduce EMISSION

• to reduce NOISE

• to reduce VIBRATION
• DON’T KNOW

In CRDe engine, how the quantity of fuel to be injected is varied ?

• by varying duration of opening time of the injector

• by varying the pressure of the COMMON RAIL

• by varying the pressure of the FUEL PUMP

• DON’T KNOW

In CRDE engine, what should be done during air bleeding the fuel system ?

• from diesel filter to high pressure pump bleeding screw, air bleeding can be done as per requirement

• from diesel filter to high pressure pipe ends, air bleeding can be done as per requirement

• air bleeding must be done only from high pressure pipe ends

• DON’T KNOW