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Chapter 16 USE OF AUTOMOTIVE DIAGNOSTIC SCANNER FOR FAULT FINDING OF IC ENGINE MCQs

1. Parts of EFI system that convert physical parameters into electrical signals are called:

(A) Sensor


(B) Actuator


(C) ECU


(D) Injectors




2. Fuel injectors in EFI system are controlled by:

(A) Sensor


(B) Actuator


(C) ECU


(D) Injectors




3. In EFI system electric fuel pump is fitted:

(A) In oil sump


(B) On cylinder block


(C) On cylinder head


(D) In fuel tank




4. In EFI system quantity of air is controlled by:

(A) Sensor


(B) Choke valve


(C) ECU


(D) Throttle valve




5. In EFI system during idling speed air fuel mixture is controlled by:

(A) ISCV


(B) Actuator


(C) ECU


(D) Injectors




6. In computer-controlled ignition system switching transistor is fitted in:

(A) COP unit


(B) Ignition distributor


(C) ECU unit


(D) Both b & c




7. In computer-controlled ignition system primary circuit is completed through:

(A) Sensor


(B) Ignitor


(C) Signal generator


(D) None of these




8. In VVT-i system spool valve assembly is fitted on:

(A) Crank case


(B) Cylinder block


(C) Cylinder head


(D) Cam sprocket




9. In VVT-i system hydraulic pressure is used to rotate:

(A) Inlet cam shaft


(B) Intake cam sprocket


(C) Rocker arms


(D) Hydraulic bucket




10. In VVT-i system is designed to control the intake cam shaft within a range of:

(A) 14 degree


(B) 24 degree


(C) 34 degree


(D) 44 degree




11. In port body fuel injection system fuel injector sprays fuel in:

(A) Throttle body


(B) Inlet manifold


(C) Combustion chamber


(D) Pre combustion chamber




12. In EFI system fuel injectors are opened by:

(A) Air pressure


(B) Fuel pressure


(C) Hydraulic pressure


(D) ECU




13. Devices which are used to convert electric power into mechanical work are called:

(A) Sensor


(B) Actuator


(C) Ignitor


(D) Generator




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