Mechanic Diesel - Mock Test 15

Question 1 / 10

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What is the primary purpose of an On-Board Diagnostics (OBD) system in a vehicle? / Hindi Translation

To track and regulate a car’s performance by collecting information from sensors. / Hindi Translation

To increase the engine's horsepower and torque output. / Hindi Translation

To cool the engine's exhaust gases before they are released. / Hindi Translation

To store excess fuel for use during high-speed operation. / Hindi Translation

Question 2 / 10

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According to Module 15, what is the typical pressure range for a fuel pump test? / Hindi Translation

0.500 to 0.750 kg/cm / Hindi Translation

1.0 to 1.5 kg/cm / Hindi Translation

0.176 to 0.264 kg/cm / Hindi Translation

2.0 to 2.5 kg/cm / Hindi Translation

Question 3 / 10

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What does the first character, a letter, in an OBD II Diagnostic Trouble Code (DTC) identify? / Hindi Translation

The type of fuel used in the vehicle. / Hindi Translation

The specific technician who performed the scan. / Hindi Translation

The vehicle's manufacturing date. / Hindi Translation

Which control system set the code. / Hindi Translation

Question 4 / 10

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What component in a low-pressure fuel supply circuit is responsible for drawing fuel from the tank and sending it through the filter? / Hindi Translation

The fuel injector / Hindi Translation

The fuel pump / Hindi Translation

The common rail / Hindi Translation

The pressure sensor / Hindi Translation

Question 5 / 10

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In the dismantling procedure for an inline pump, what action is performed immediately after removing any protective covers? / Hindi Translation

Disconnect the pump from the piping system. / Hindi Translation

Remove the bolts holding the pump casing. / Hindi Translation

Remove the shaft and bearings. / Hindi Translation

Clean all components thoroughly. / Hindi Translation

Question 6 / 10

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What does a flashing Malfunction Indicator Light (MIL) indicate? / Hindi Translation

The problem is minor and can be addressed later. / Hindi Translation

The fuel level is low. / Hindi Translation

The problem is urgent and requires immediate attention. / Hindi Translation

The OBD system is performing a routine check. / Hindi Translation

Question 7 / 10

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During the assembly of an inline pump, what tool must be used to tighten fasteners to the manufacturer's specified value? / Hindi Translation

A standard wrench / Hindi Translation

A torque wrench / Hindi Translation

Pliers / Hindi Translation

A hammer / Hindi Translation

Question 8 / 10

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What is the function of the Electronic Control Unit (ECU) in a diesel engine management system? / Hindi Translation

It physically pumps fuel from the tank. / Hindi Translation

It cools the engine oil. / Hindi Translation

It receives signals from sensors and decides the opening time of the injector. / Hindi Translation

It filters the air entering the intake manifold. / Hindi Translation

Question 9 / 10

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After separating the casing of an inline pump during dismantling, which set of components should be removed next? / Hindi Translation

The protective covers. / Hindi Translation

The bolts holding the casing. / Hindi Translation

The shaft, bearings, impeller, and seals. / Hindi Translation

The fluid remaining in the piping. / Hindi Translation

Question 10 / 10

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The high-pressure fuel supply circuit contains which of the following components? / Hindi Translation

Fuel tank and fuel filter / Hindi Translation

Fuel lines and low-pressure pump / Hindi Translation

High-pressure pump and common rail / Hindi Translation

Throttle position sensor and crank position sensor / Hindi Translation