MCQOPTIONS
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MCQOPTIONS
This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your Ic Engine knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Catalytic converters use lambda sensors to keep ______________ |
| A. | exhaust temperature constant |
| B. | exhaust pressure constant |
| C. | excess air ratio within a range |
| D. | flow rate of air constant |
| Answer» D. flow rate of air constant | |
| 2. |
Knock sensors use ______________ |
| A. | thermistors |
| B. | thermocouples |
| C. | piezoelectric pickup |
| D. | flap type sensors |
| Answer» D. flap type sensors | |
| 3. |
Hot-wire sensors are used for the measurement of ______________ |
| A. | temperature |
| B. | pressure |
| C. | mass flow rate |
| D. | smoke intensity |
| Answer» D. smoke intensity | |
| 4. |
Seebeck effect is used in ______________ |
| A. | thermistors |
| B. | thermocouples |
| C. | rtd |
| D. | hot-wire sensor |
| Answer» C. rtd | |
| 5. |
Thermistors are desirable because of their ______________ |
| A. | linear output |
| B. | large temperature coefficient |
| C. | suitability for high temperature |
| D. | none of the mentioned |
| Answer» C. suitability for high temperature | |
| 6. |
What is the disadvantage of the piezoelectric pressure pickup? |
| A. | it can only give pressure difference |
| B. | it can measure only low pressure |
| C. | it is not suitable for dynamic measurement |
| D. | has too much sensitivity |
| Answer» B. it can measure only low pressure | |
| 7. |
LVDT is used to measure ______________ |
| A. | crank angle |
| B. | engine speed |
| C. | large displacements |
| D. | gas temperature |
| Answer» D. gas temperature | |
| 8. |
Hall effect pickup use ______________ |
| A. | inductive transducers |
| B. | potentiometers |
| C. | thermistors |
| D. | semiconductors |
| Answer» E. | |
| 9. |
What are the important parameters in a gasoline engine that can be controlled? |
| A. | air-fuel ratio |
| B. | mixture distribution between cylinders |
| C. | ignition timing |
| D. | all of the mentioned |
| Answer» E. | |
| 10. |
Which of the following is the main aim of an engine management system to achieve? |
| A. | high reliability and durability with lowest possible initial cost |
| B. | high power output and torque |
| C. | low levels of gaseous and particulate emissions |
| D. | all of the mentioned |
| Answer» E. | |