Question 65Motor Plants - Assistant Engineer70% to pass
Diesel engine automated control systems may utilize sensing devices of dual function, with sensing ranges providing both alarm and engine shut down capability. Which of the key points listed would only require an alarm sensor?
AI Explanation
The correct answer is D) Lube oil sump level.
The lube oil sump level only requires an alarm sensor, not an engine shutdown sensor. This is because a low lube oil sump level is an early indication of a potential issue, and the alarm will alert the operator to investigate and take corrective action before the engine is damaged. Engine shutdown is not necessary for a low lube oil sump level alone.
In contrast, the other options (lube oil pressure and temperature, jacket water pressure and temperature, and engine overspeed) can directly lead to engine damage if not addressed promptly, so they require both alarm and engine shutdown sensors to protect the engine.
Related Questions
#63 A normally operating diesel engine is shutdown by_______________. #64 Load control on a diesel engine is accomplished by_______________. #66 The pneumatic circuit shown in the illustration is part of a control system used with large low-speed diesel engines. The arrangement may be used to control_______________. Illustration MO-0118 #67 The 3-position, 4-way directional control valve with a 30 bar output at "ee" as shown in the illustration (MO-0116) is a blocking valve associated with the engine turning gear. Which of the following statements describes its function when incorporated into a slow-speed diesel engine starting control air distributor as shown in the illustration (MO-0053)? Illustrations MO-0053 and MO-0116#68 Which of the following statements describes the operation of the circuit shown in the illustration? Illustration MO-0114