Forums > Engine > Expired / Motor Plants and Auxiliary Boilers: The symbol with the output 'ee' shown in the illustration, ...
| Question #259 | |
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| Link to Question | |
| The symbol with the output 'ee' shown in the illustration, is properly called a blocking valve. Which of the following statements describes its function when incorporated into a slow speed diesel engine pneumatic control circuit? Illustration MO-0116 | |
| A) The device is used to interrupt the control signal to port "J" of the air start distributor shown in illustration MO-0053. | |
| B) The blocking device prevents direct hydraulic flow from operating the reversing mechanism. | |
| C) All speed signals emanating from the throttle lever are diminished by half due to the blocking effect of this valve. | |
| D) The device is used to interrupt the pneumatic signal to port "A" of the distributor shown in illustration MO-0053. | |
| Posted: 15 Jun 2015 16:47 UTC | Post #1 |
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| Thestempa26 Engine |
Member Total Posts: 10 |
| There is a drawing missing. | |
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