MCQOPTIONS
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MCQOPTIONS
This section includes 657 Mcqs, each offering curated multiple-choice questions to sharpen your Testing Subject knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
The metering rod used in an economizer ___________ |
| A. | is tapered |
| B. | is not tapered |
| C. | may be tapered |
| D. | none of the mentioned |
| Answer» D. none of the mentioned | |
| 2. |
Economizer allows a large opening to the main jet when the throttle is ____________ beyond a specified limit. |
| A. | closed |
| B. | opened |
| C. | partially opened |
| D. | none of the mentioned |
| Answer» C. partially opened | |
| 3. |
Economizer is also known as ___________ |
| A. | power enrichment system |
| B. | power less system |
| C. | power throttle system |
| D. | none of the mentioned |
| Answer» B. power less system | |
| 4. |
In order to accelerate the vehicle and consequently its engine, the mixture required is very ___________ |
| A. | rich |
| B. | lean |
| C. | thin |
| D. | none of the mentioned |
| Answer» B. lean | |
| 5. |
The solenoid valve operated idling circuit reduces ___________ |
| A. | engine performance |
| B. | hydrocarbon emissions |
| C. | co emissions |
| D. | none of the mentioned |
| Answer» C. co emissions | |
| 6. |
Dieseling may take place due to ___________ |
| A. | engine idling speed set to high |
| B. | increase in compression ratio due to carbon deposits |
| C. | inadequate or low octane rating |
| D. | all of the mentioned |
| Answer» E. | |
| 7. |
An SI engine sometimes continues to run for a very small period even after the ignition is switched off. This phenomenon is called? |
| A. | idling |
| B. | dieseling |
| C. | throttling |
| D. | none of the mentioned |
| Answer» C. throttling | |