Exhaust temperature increases in all cylinders, the possible cause may be（）

(1) increased scavenging air temperature

(2) air in fuel pumps and fuel valves

(3) fouling of air and gas passages

[单选题]The rising of the exhaust temperature in manifold pipe may NOT result from （）.A . too great a loadingB . fouled turbochargerC . bad combustionD . excessive air

[单选题]B．y comparing the exhaust gas temperature of each cylinder, the operator can determine if the load is balanced throughout the engine The device most commonly used is aA．tachometerB．pyrometerC．dynamometerD．calorimeter

[单选题]Meyer Company increases the promised payments for all employees in its defi

[单选题]All other things being equal, a decrease in expected yield volatility most

[单选题]Suppose inflation increases due to increases in government spending and a r

[单选题]In the sentence “In some designs the cylinder oil is timed so that the oil injects only on the piston ring belt, the "piston ring belt" means （）.A . piston crownB . piston ring grooveC . piston skirtD . piston ring area

[单选题]（） supplies pilot air to control the cylinder air start valves.A . An air compressorB . An indicator cockC . An air distributorD . A safety valve

[单选题]E．xhaust gas pyrometers are useful forA．detecting faulty combustion in individual cylindersB．adjusting fuel racks to maintain equal loading between cylindersC．adjusting the load limit setting of the governor at idle conditionsD．calculating engine hor

[单选题]Exhaust valve grooving and corrosion is caused by certain components of residual fuel oilThese components are sodium, sulfur, and （）.A . vanadiumB . carbonC . copperD . ash

[单选题]The opening of an exhaust valve on a modem, large, low-speed, main propulsion diesel engine may be actuated by （）.A . direct action of cam shaftB . compressed air pressureC . hydraulic “push rods”D . direct action of the main piston movin