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What speed of the engine were the diesel engines having a rated speed of 400 rpm.

[Back]

Medium-speed

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54 questions

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What speed of the engine were the diesel engines having a rated speed of 400 rpm.

Medium-speed

True or False. The lubricating oil also used as a cleaner and in some engines as a coolant?

True

Which of the ff. is an advantages of a slow-speed diesel engine?

Power

Where do we store the Lubrication oil onboard?

Sump tank

What special type of oil is use for lubricating cylinder liner of the main engine?

Cylinder oil

In a two stroke cycle, How many times should the piston must move up and down the cylinder?

This Method of Scavenging is were the exhaust valve mounted in the cylinder head.

Uni flow

This system is to provide the right amount of fuel at the right moment and in a suitable condition for the combustion process.

Fuel injection

Which of the company that installed their first diesel engine in a ship, the freight boat 'Venoge'

Sulzer

In a four stroke cycle, How many times should the crankshaft revolve?

True or False. Is the Main engine can be designed to manoeuvre on heavy fuel oil & diesel oil?

True

On Engine starting. The manoeuvring handle is moved to _______. This will admit compressed air into the cylinders in the correct sequence to turn the engine in the desired direction.

Start

What engines are often used as direct drives for generation of electrical power? I Slow-speed engine II Medium-speed engine III High-speed engine

II and III

When the engine is over heating. What item do it need to lower the temperature?

Cooling water system

Checked all various _FW_ tanks, filters, valves and drains

True

There are two cooling water, one is use for other purpose & the other is used for engine. What cooling water is used for other purpose?

. LT (Low Temperature cooling water)

It is an arrangement to reduce medium speed engine drive down to suitable propeller revolution.

Turning Gear

Preparations for standby of Engine All control equipment and __alarms__ should be examined for correct operation.

True

Preparations for standby of Engine All the visible returns are observed and lubricating oil pumps and circulating __water__ pumps are started.

True

Preparations for standby of Engine Auxiliary scavenge blowers, if manually operated, should be __stop__.

False

Preparations for standby of Engine Warmed through by circulating __cold water__ through the jackets, etc. This will enable the various engine parts to expand in relation to one another.

False

How many starts is required for an air bottle storage capacity?

Waste Heat Recovery system would be that the high temperature stage was used for ___________?

Electricity production

It is a reversible – electric motor which drives a worm gear which can be connected with the toothed flywheel.

Turning Gear

On Engine starting.When the engine reaches its firing speed the manoeuvring handle is moved to the _______ position. Fuel is admitted and the combustion process will accelerate the engine and starting air admission will cease.

Running

A device to connect on separate driving unit from the unit it drives.

Clutches

Preparations for standby of Engine The fuel oil system is checked and circulated with __hot oil__.

True

Preparations for standby of Engine The turning gear __Dis-engaged__ and the engine turned through several complete revolutions.

True

The cooling water outlet temperature is usually maintained at about ______°C ?

78-82 °C

Preparations for standby of Engine The turning gear is __engaged__ and if possible the engine should be turned over on air before closing the indicator cocks.

False

What engines are used for speed reduction, as main propulsion engines ? I Slow-speed engine II Medium-speed engine III High-speed engine

II and III

Diesel engines are started by supplying ___________________ into the cylinders in the appropriate sequence for the required direction.

Compressed air

The temperature of the cooling water is closely controlled using what valve ?

Three way control

This motor is also used to turn the engine one or two revolutions prior to starting.

Turning Gear

This is to ensure that the engine is free to turn and that no water has collected in the cylinders is called.

Running check

There are two cooling water, one is use for other purpose & the other is used for engine. What cooling water is used for cooling the engine?

. LT (Low Temperature cooling water)

Type of steam turbine where the rotor derives its rotational force form the impact force

Impulse turbine

Type of steam turbine that works on the principle that the rotor spins, from a reaction force

Reaction turbine

Is a device which extracts thermal energy from pressurized steam and uses it to do mechanical work

Steam turbine

Gas turbine are not self starting. a starting ____ is used

Motor

Service air compressor. it compresses air to the _____ of only 7 bars and later used in service and control airlines

Low pressure

On a gas turbine power plant. how much power is used to drive the compressor

The running speed of gas turbine is in the range of blah blah blah

1100- 1260 C

Like in steam turbine, the gas turbine also has _____and moving blased

Stationary

On gas turbine power plan, less pollution and less water is required

True

Gas turbine unit has a HIGH thermal efficiency

FALSE

On gas turbine power plant, the Cost of maintenance is HIGH

False

On gas turbine power plant. EXPENSIVE FUEL such are kerosine, paraffin, benzene and powered coal

False

Main air compressor. these are air compressors are high pressure compressors has a minimum pressure value of ____ bars used to run the main engine

30 bars

On gas turbine, in combustion chamber, the greater the pressure of air,

The better the fuel air mixture burns

On a gas turbine, the ______suck in air and compresses it, thereby increasing its pressure

Air compressor

Gas turbines burns fuels like PULVERIZED (powdered) Coal

True

Which of the following statement of the working principle of gas turbine is not correct

The fuel and compressed air are mixed in air compressors

Which kind of fuel can be burn in a gas turbines

Powdered Coal, oil, natural gas