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

A follower rest should make use of a lathe to machine.

When using centre lathe, why should you use short sleeves or close fitting sleeves be worn?

What tools has to be used for enlarging a hole after drilling operation?

Packing rings installed on auxiliary turbines are lubricated by _____.

Before using an all-purpose electric measuring instrument (multimeter) utilizing internal batteries to supply power for resistance measurements, you should first _____

Which method is often used to detect external defects in welded metals?

The term refering to the number of teeth per inch on a hacksaw blade is known as the ?

The drill size is marked on the ?

If the drill point lips are ground at different angles, the drill will?

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

Used to reduce cargo pump leakage to the pump room bilge of a tanker ship is the _____.

Temporary repairs to an open DC propulsion armature coilcan be made by _____.

How would you checked the alignment of coupling faces?

What operation is used in smoothing and squaring the surface of a round hole?

The dead center of a lathe can be used only after the end of the work piece.How does the the hold the workpiece?

What is the cause of a bluish smoke observed in the exhaust off am operating diesel engine?

What is the purpose of improving the characteristics of a metal, especially steel, by heating it to a high temperature, though below the melting point, then cooling it, usually in air?

In general practice, which one makes common measurement on circular and curved surfaces in machine shops?

Which of the following files will have coarsely spaced teeth?

What is this kind of metal which is light, strong and corrosion-resistant used as the plate material in plate-type heat exchanger?

The lower water seal on a diesel engine wet cylinder liner must allow for liner expansion and contraction. This seal is most commonly a _____.

Which of the files listed will have coarsely spaced teeth?

which one of the list should a flat chisel is the proper tools used for cutting?

What tools has to be used for enlarging a hole after drilling operation?

A diesel engine fails to start due to excessive water in the fuel. Which items on the list where the water should removed before the engine can be started?

Hacksaw cutting is more effective when pressure is applied on the ?

What is the primary used of a soft faced hammer or mallet?

When tightening the nozzle nut of fuel injector, which of the following tools is used?

The number of screw threads per inch for a Standard National Coarse 1/2 inch bolt is:

Which of the following spanners is preferable to use?

The lower water seal on a diesel engine wet cylinder liner must allow for liner expansion and contraction. This seal is most commonly a _____.

Which one of the following files types are always Mill files?

Which material can be drilled at the highest speed?

In measuring the clearances between the main engine bearings and the crankshaft, which of these materials is commonly applied?

Tubing is sized by:

What procedure must be formed before doing any maintenance on a hydraulic system, i.e. there is still stored energy in the accumulator?

Low pressure steam is used to keep air from leaking into turbine casing along the turbine shaft. For this purpose, which of the following steam systems is used?

As per regulations permit to repairs the boiler safety valves while installed on a main propulsion boiler and may be made by ______.

What do you call the operation of machining a uniformly roughened or checked surface on round stock in a lathe?

A crack, located in the shell plating or deck plating of a ship, may be temporarily weld repair from increasing in length by ____.

When using a hand held hacksaw the correct maximum rate of speed for cutting should be:

What metal is used as an alloying material in the manufacture of varius special steels?

Which of the following kind of metal is ductile and maleable that can be ccorroded by air or water?

During cutting in milling when the chips begin to produce long and continuous, it is best that the feed is _____.

When it necessary to open a refrigeration system for repairs and the system will be open for more than a few minutes, the open ends of the system should be _____.

The best method of fixing a winch motor bearing of the sealed type tha is running hot is to _____.

Heat damage to fuel injection nozzles on small high-speed diesel engines can be prevented by ____.

Which features of a centrifugal pump reduce the need for renewing worn impellers and pump casings?

When renewing sections of pipe in a hydraulic system, it should always indicate the nominal pipe size of the piping?

What do you call that instrument use to take misalignment of the crankshaft?

A micrometer screw has a pitch of ?

When the timing gear backlash for a Roots-type blower has become excessive, the problem is properly repaired by _____.

In electric arc welding, what purpose does the electrode coating serve?

Which non-ferous alloy is most commonly used for heat exchanger tubes and possesses a high resistance to corrosion?

If you suspect that a gage is sticking and giving an inccurate reading, you should ______.

Accidental ground in a shipboard electrical system must be repaired as soon as possible as they will _____.

How do you call a welding process with the work in the positive pole and the electrode in the negative pole?

What is the end of shaft condition before the maintenance repair is carried out?

What safety precautions should be done changing the spindle speeds on a lathe machine?

What machine which can flatter surface on horizontal, vertical or angular plane?

Which of the files listed is commonly referred to as a "rat-tail"file?

What operation can be done during external cleaning of boiler tubes in order to prevent the accumulation of carbon deposits?

Which of the following process will a hacksaw blade start a cut more easily?

When saw blades are fixed in a hand-held hacksaw frame, which of the following can move forward and reverse stroke?

Which of the listed metals can usually be drilled without lubrication?

The gasket and the broken studs have been replaced on a tank manhole cover. Which of the following methods is satisfactory for testing the repair?

What is known as a welding done with a shielded or unshielded carbon or metal electrode

When steel, cast iron, or other metals with surface scale are being turned, what roughing cut should be taken first?

What is the terms rough, coarse, bastard, second cut smooth and dead smooth refer to?

Diesel engine piston ring ends can be machined in different shapes. The step-cut ring end offers the advantage of:

Which one of the following chisels should be used for cutting oil grooves?

What is inert gas use as shielded gas in MIG and TIG welding?

The loop seal connected to the main condenser returns the drains from the ____ .

Which of the listed metals can usually be drilled without lubrication?

Which of the following propeller materials will not require stress relief treatment after minor repairs, straightening of the tips or the thinning of the blade edges?

What should you avoid increased pressure on a drill as the drill point begins to breakthrough the bottom of the work piece?

Tapping threads into a blind hole should be finished by using a:

Which of the listed tools should be used to remove a tapered roller bearing from a shaft?

Before boring a blind tapered hole, a good shop practice to follow is ______.

What is commonly used by a machinist and repairman in fixing files with coarsely teeth?

What is the ultimate stress of mild steel used in boiler plates?

Which of the following problems is the main source of fuel pump and injection system malfunctions?

What fitting is ideal for connecting pipes with big diameters of equal length?

To prevent vibration damage to the fuel supply line of a diesel engine, you may use:

Pipe threads are made of what tools are you use?

When copper plates are used for making gaskets, it is usually annealed by heating red cherry color, what is the complete process?

What do you call a lathe dog fitted with a headless set screw?

Babbit metal is used to make?

When replacing packing rings in the stuffing boxes of reciprocating pump piston rods, the ends of the rings should be cut?

Which of the following characteristics is true relative to meshing with corrosion protection oils, as the resultant mixture?

Which of the following process of annealing copper plates that are used for gaskets?

A dial indicator is used to measure?

The gasket and the broken studs have been replaced on a tank manhole cover. Which of the following methods is satisfactory for testing the repair?

This method is used for joining sheet metal and for attaching studs, rods and busses,etc., to plates _____.

Why must a close fitting, buttoned up overall be worn using a lathe?

To repair or replace defective diesel engine high pressure fuel pipe it must be of the same length and diameter as the original piping _____.

When using centre lathe, why should you short sleeves or close fitting sleeves be worn?

What precaution should be followed when using a chisel having a mushroom head?

Which of the following metal material has the lowest cutting speed for an effective rough cutting operation if a high-speed cutter is to be used in the modern milling machine onboard?