How is the water circulated between water and steam drums in a water tube D- type boiler?

Which of the following conditions should be used to support the need to change the lube oil when there has been an increase in the neutralization number?

When removing the cap from a sounding tube on a MODU, the sound of air escaping indicates.

A fluctuating and unsteady vacuum in an evaporator may be caused by _____________.

When there is excessive ingress of water in the engine room onboard causing dangerous levels of bilge water,

A primary element used with flow measurement devices highly suitable for liquids containing solids in suspension, is a ____________.

The purpose of bilge keels as an example is to reduce the amplitude of roll. What arrangements need to be made on a ship to achieve the following:

Excessive leakage and premature failure of valve packing is a result of ____________.

While starting a hydraulic anchor windlass, you observe that hydraulic pressure does not develop in spite of the proper operation of the electric drive motor. Which of the following actions should you take FIRST to restore pressure?

Which of the following statements about the design of D- type boilers, is false?

An insulation resistance test is performed on a particular piece of electric equipment. In addition to the resistance reading, what information listed below should be entered in the electrical log?

Prior to major overhaul of main engine onboard, the engine room crane is tested by

In Stern tube, aft of FOREWARD SEAL is leaking then

If the watch keeping engineer encounters a Main Engine Slow down alarm he should__

If a radial piston hydraulic pump fails to deliver rated fluid volume, the cause can be

The temperature at which water vapor in the atmosphere begins to condense is called the ____________.

A first stage unloader installed in a low pressure air compressor is unable to completely retract. This will result in ____

The burner assembly on an automatically fired auxiliary boiler fitted with variable capacity, pressure atomizing burners, maintains steam pressure by

Fuses are rated in _

Steam stop valve is eased of its seat during boiler start up from cold

Air is removed from refrigeration system by (1) ________ at receiver after (2) ________ (3) ___ Gas in receiver

The seating material for perfectly sealing type Ball valves is usually made up of

The principal purpose of sub cooling liquid refrigerant prior to its entering the expansion valve is to _

Restrictions occurring in the small orifices of pneumatic control system components can be caused by

A partial opening of which of the following kinds of valves can lead to wire -drawing of its seat?

The heat removed from the refrigerant in the condenser of a refrigeration plant is the

A casing drain is provided for axial piston and bent axis variable stroke pumps to ___________.

A generator has been exposed to water and is being checked for its safe operation. Therefore, it is necessary to _______________.

The zipper of an immersion suit should be lubricated with _____________.

Galvanic action which of the following is false.

Water leaking from a pump packing gland is kept away from the bearing housing by the use of

Sequential starting of machineries after black out in engine room is necessary

When replacing ball bearings on an electric motor shaft, you should _____________.

Water carryover from boiler onboard through the steam causes

A pump is defined as "a device that _____________."

A solid stream of water might be useful in fighting a burning oil fire on deck when it is used ____________.

Short cycling of a fridge compressor can occur in which of the following cases?

Which of the following types of coatings used in tanks of a chemical carrier provides a comprehensive protection against most solvents?

A diffuser is provided at the end of a mechanical atomizer in boiler onboard

Increasing the speed of a rotary pump above its rated speed will result in most of the following conditions to occur?

Salinity of distilled water produced from fresh water generator onboard depends on

Which of the following types of steam traps uses the pressure energy of the steam to close the outlet ?

Which of the following is the material used for manufacturing tube plates of a shell and tube type heat exchanger?

Duty of standby person at the entrance of the enclosed compartment during enclosed space entry is

After packing is added to the stern tube stuffing box, which of the following procedures should be observed to insure even tightening of the gland?

If the pointer fails to return to zero when a megger is disconnected, the_____________.

Presence of catalytic fines in fuel oil is significant to engineers on board because_

If a bilge pump is able to develop vacuum, but is unable to sufficiently pump out the bilges, you would check for ________.

The amount of fuel oil atomized by a return flow oil burner is directly controlled by the

The terms rough, coarse, bastard, second cut, smooth, and dead smooth refer to the ________.