USCG QMED: Qualified Member of Engine Department Exam Practice Test
USCG QMED: Qualified Member of Engine Department Exam के लिए अपना आत्मविश्वास बढ़ाएँ। अवधारणाओं का अभ्यास करें, उत्तरों को समझें और हर सवाल के साथ अपना ज्ञान मज़बूत करें।
एक नमूना सवाल आज़माएँपरीक्षा का परिचय और विवरण
US Coast Guard QMED प्रमाणन परीक्षा जो इंजन कक्ष संचालन, मशीनरी रखरखाव, विद्युत प्रणालियों और वाणिज्यिक समुद्री इंजन विभाग रेटिंग के लिए सुरक्षा को कवर करती है।
नमूना प्रश्न
अभ्यास कैसे काम करता है, यह जानने के लिए एक उत्तर चुनें और व्याख्या देखें।
A boiler safety valve lifts slightly below normal steaming pressure after maintenance. The steam gauge was recently replaced and has not been compared with a test gauge. What should be verified before adjusting the safety valve spring?
During maneuvering, one starting-air branch pipe grows warm while the engine is running ahead and no starting command is being given. Receiver pressure is slowly falling. Which condition best fits these symptoms?
A pump shaft coupling was reassembled after bearing replacement. At startup, vibration is high, and a dial indicator check shows angular misalignment between motor and pump flanges. What should be done before extended operation?
A three-phase galley exhaust fan has been running for months. Today it hums, starts slowly, and trips its overload after a contactor was replaced. Line voltage is present on the supply side, but one load-side phase is missing. What failure best explains the symptoms?
A generator trips on reverse power shortly after paralleling. Bus voltage and frequency were matched at closing, but the diesel engine fuel rack then moved toward shutdown. What does the reverse-power trip protect against?