Putting additives into diesel engine cooling water is primarily designed to prevent?

A leaking suction valve in the second stage of a two stage, high pressure, air compressor can cause excessively high?

What can cause dirt in a fuel oil system to the diesel engine?

Which of the listed devices is often clutched to the flywheel of small and medium size diesel engines for the purpose of starting?

The insertion of shims between the foot of a marine type connecting rod and a bearing box would result in

When the pressure on a compound gage is released, the gage pointer is returned to zero psig by action of the _____.

What dou call a component used to thoroughly separate small, fine, dust-like particulate contamination from hydraulic fluid?

While your standing your engine room watch at sea, you notice the D.C. heater level dropping rapidly as indicated by the remote level indicator. Which of the following actions should be taken?

Which of the following statements concerning cylinder liner wear in a single acting diesel engine is correct?

Which of the following precautions should be observed concerning the introduction of a fire resistant fluid into a hydraulic system?

Leakage of hydraulic fluid from around the shaft of a hydraulic motor may be caused by ___.

While your vessel is steaming with one boiler, the automatic combustion control system sensing line for the idle boiler is accidentally opened. How will this effect the steaming boiler?

Acetylene should never be used at pressure in excess of 15 psig because the ?

In which of the listed hydraulic system components could an O-ring seal be satisfactory used in providing a seal?

Which of the following is true concerning the hose threads on compressed gas oxy- acetylene regulators and torches ?

The large number of mechanical and pulsating vibrations developed in a diesel engine may damage an attached?

What causes the possibility of non-atomized fuel dripping from the fuel injection nozzles after injection of the fine fuel mist has finished?

Which of the following material has high tensile strength and corrosion resistance and has been used to replace steel metal in both flat plate form and in matched-metal die processes where parts are molded in the preformed shape?

Which ring dam arrangement should be used for centrifugal purification?

Which of the following refers to the distance between the piston top at BDC and TDC?

What is the use of strainers in hydraulic systems?

What type of fits is necessary in the assembly of mating parts with the use of hydraulic press?

Acetylene should never be used at pressure in excess of 15 psig because the ?

What size of the circular bar is required to make a hexagonal nut of 16mm sides?

When normal operating pressure is applied to the hydraulic oil in a high pressure system, the oil?

Which of the listed interlocks stops the valve in the remote operating valve line of air starting system from opening?

Why should a return lines in a non-pressurized hydraulic system reservoir enter the tank well below the fluid surface level?

The longer the ignition delay period resulting from improper use of low cetane fuel, the ?

Automatic control valves for steam service require periodic maintenance inspections because they.

What is the possible cause why a lube oil pump fails to build up discharge pressure?

Below are some of the causes of high exhaust gas temperature except?

On a large low-speed main propulsion diesel engine, lower main bearing wear is usually measure by using a/an _____.

The best way to recondition a defective fuel injector is to ?

An O-ring seal in a hydraulic system will begin to leak when it has lost its interference fit due to?

What is the fusion of two metals joined together to produce a strong bind as one metal?

Worn main bearings will cause the compression ratio of an auxiliary diesel engine to?

Which of the following centrifugal pump components converts the liquid kinetic energy of velocity to the potential energy of pressure?

The leaking valves in a low pressure, reciprocating, air compressor can result from?

Fusible link fire dampers are operated by ____.

High jacket cooling water temperature for all cylinders is caused by?

The purpose of the diffuser in a boiler burner assembly is to _____.

What will happen if a diesel engine is running in about to dry fuel oil day tank?

What is the complete tool used for manually cutting threads on pipe?

The insulation and screen of diesel engine exhaust manifold shoul be put back after each overhaul because it?

Increased internal leakage, in addition to poor hydraulic system response, and inadequate lubrication, is the result of ?

With an increase in temperature, the volume of hydraulic oil ____.

When arc welding, the flux that covers the electrode is used to ____.

When the pressure on a compound gage is released, the gage pointer is returned to zero psig by action of the?

With respect to diesel fuel, the ease with which a cold engine will start is dependent upon the?

Why would you cut a hole in a boiler tube which has been plugged?

What is the used of jacking gear on main propulsion turbines?

Which one of the following tool used in precision work to smooth or enlarge a slightly undersized hole?

During the operation of a lube oil centrfuge, a thin emulsion interface occurs between the lube oil and seal. The position of this interface is determined by the _____.

An advantage of aluminum pistons, when compared to cast iron piston is?

Why is a hydraulic linear actuator fitted with a cushioning device?

Dirty intercoolers on an air compressor will cause?

Which of the following problems occurring in a hydraulic system can be caused by using an oil having a viscosity lower than specified?

In the case of a variable speed centrifugal pump?

How can the leak in a hydraulic system in a hatch cover be remedied?

Where is the charge for an air starting system stored?

What do you cal the portion of a hydraulic hose that determines its overall strength?

Some fluid filters used in hydraulic systems are designed to cope with increasing pressure differentials by?

The ventilation system aboardships has fire dampers restrained by fusible links that will?

An acceptable method of temporary repairs in the vessels hulls is?

If the hydraulic governor has been drained and refilled with fresh oil, the engine should be operated until it reaches normal temperature, then the air should be purged by ______

What would you do after adding grease to a ball bearing with a hand held grease gun?

What is the principal or main hazard to personnel when a diesel nozzle tester is in use?

Which internal combustion engine starting system uses a vane type fluid motor?

To determine the main bearing clearances in a diesel engine, you should use?

While at sea, during your watchin the engine room of a steam turbine driven vessel, you notice the main lube oil pump suction strainer vacuum differential has been increasing. To correct this you should ____

Which of the following is the proper maintenance for a lube oil pump?

When conducting a routine hydrostatic test on a water-tube boiler, you should _____.

The measure gap between the face of the burner atomizer tip nut and the diffuser plate, is determined by the setting of the _____.

Diesel engine starting difficulties due to cold intake air temperatures, can be overcome by using a/an?.

Which of the following operating conditions can occur when shims are removed from the joint between the foot of a marine type diesel engine connecting rod and the bearing box?

Thermocouple pyrometers are sued on large, main propulsion diesel engines to indicate the temperature of the ?

What is caused by restriction occurring in the small orifices of pneumatic control system components?

The ignition quality of a fuel oil is an important operational consideration because it?

When checking the tightness of nuts and bolts during a diesel engine crankcase and hold-down bolt inspection, the quickest and most effective method is?

What is the next task after fitted of pipings are welded?

Thermocouple pyrometers are sued on large, main propulsion diesel engines to indicate the temperature of the ?

Which pressure in an operating hydraulic system is developed _____.

Where does the generator cooling water comes from during dyr-docking?

In certain cases, a cylinder liner can be refinished rather than replaced. When properly honed, the?

If during operation and the air compressor pressure will not raise, the probable cause maybe?

What care and attention should be maintained in a hydraulic system after installing a new hydraulic pump in it?

What will be the effect of an improperly maintained filter used in a hydraulic system?

If the hydraulic governor has been drained and refilled with fresh oil, the engine should be operated until it reaches normal temperature, then the air should be purged by?

To properly use a tube expander, the expander should be placed in the tube to be rolled so that the _____.

Modern trnds show that the full flow filters used in multi-operation hydraulic systems would most likely be located ______.

For any piston ring to operate smoothly without scuffing, the ring must be ?

An internal bypass is provided on some hydraulic system suction strainers to help reduce the possibility of?

Low scavenging pressure delivered to the engine can cause?

A work piece has been mounted between centers and a test cut machined at each end to check alignment of the lathe centers. If the test cut on the tailstock end is deeper than the test cut on the headstock end, the tailstock must be moved?

Which of the devices is commonly used in measuring the clearances between the main engine bearings and the crankshaft?

Which characteristic or condition will have the greatest effect on increasing a hydraulic oil's viscosity?

What type of hydraulic pumps most commonly used in steering systems?

Which of the following is the proper maintenance for a lube oil pump?

What power is required in maintaining the hydraulic consumer system?

A roller bearing should normally be filled to what fraction of its space cavity?