OIC-EW MARINA REVIEWER / QUIZ COMPETENCE 4 - PART 6 - Seaman Kowts

COMPETENCE 4 -Operate Main and Auxiliary Machinery and – Associated Control Systems

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#1. . When you are starting a diesel engine at temperature below 70 deg. F the functional resistance to turning will be _________.

Reduce by increasing lube oil pressure

Controlled by reducing the compensation ratio

Directly proportional to lube oil viscosity

Eliminated by eating the intake air

Incorrect!

#2. If the pressure indicates 30 PSI what will be the equivalent in kgs/cm2?

1.8

2.1

2.8

3.1

Incorrect!

#3. What is the approximate composition of air by mass?

23% oxygen and 77% nitrogen

27% oxygen and 73% nitrogen

23% oxygen 77% hydrogen

27% oxygen and 73% hydrogen

Incorrect!

#4. Two governors on diesel engines driving the same load require which of the following characteristics?

Speed droop and isochronous

Speed droop and high sensitivity

Isochronous and high sensitivity

Speed droop, isochronous and high sensitivity

Incorrect!

#5. What are the product of kinetic viscosity and the density of the oil at the temperature?

Absolute density

Absolute viscosity

Kinematics viscosity

Viscosity index

Incorrect!

#6. Turbulence is created in the cylinder in the cylinders of a diesel engine to _______.

obtained injection lag

help mix fuel and air

increases combustion pressures

Incorrect!

#7. What kind of heat must be added to convert and ice (solid heat) to water (liquid state)?

latent heat of fusion

sensible heat

latent heat of vaporization

applied heat

Incorrect!

#8. This type of heat when added to a substance, it will result to a change in physical state without changing its temperature.

sensible heat

latent heat

latent heat of fusion

laten heat of vaporization

Incorrect!

#9. This is the temperature of a liquid in which boiling occurs?

saturation temperature

superheated temperature

vaporization

latent heat

Incorrect!

#10. What is the equivalent of zero (0) Kelvin to degrees centrigade?

-273º C

-460º C

-32º C

-180º C

Incorrect!

#11. The pressure gauge indicates 2.5 kgs. Per cm2. What will be the pressure equivalent in pounds per square inch ( PSI )?

35.5

38.6

42.8

45.5

Incorrect!

#12. What is the distance from the centroidal axis of an area at which the entire area could be concentrated?

Moment of inertia

Moments of gyration

Mass moment of inertia

Mass of moment of composite bodies

Incorrect!

#13. Power is defined as the _______.

rate of doing work

amount of force needed to overcome friction

amount of work accomplished

distance through which an object is moved

Incorrect!

#14. The relationship between viscosity and specific gravity is:

Liquids with different viscosities will always have the same specific gravity

Liquids with different viscosities will never have the same specific gravity

Viscosity and specific gravity are directly proportional

Viscosity and specific gravity are not related in that one does not define or limit the other

Incorrect!

#15. With a decreasing scavenging air pressure and increasing scavenging air temperature, the specific fuel consumption of the engine will:

remains constant

not affect the engine performance

be reduced

increased

Incorrect!

#16. A tonnage tax is levied according to the (NOT ENGINEERING QUESTION) INVALID

Gross tonnage of vessel

Maximum deadweight cargo tonnage on board

Displacement tonnage of the vessel

Net tonnage of vessel

Incorrect!

#17. What is the chemical symbols for fuel butane?

C4H10

C3H8

C2H6

C7H16

Incorrect!

#18. . The removing of moisture from air is a process known as :

humidification

dehumidification

vaporization

evaporation

Incorrect!

#19. The property of the body which resist changes in its state of rest or uniform motion in a straight called ________.

Kinetic energy

Potential energy

Inertia

Radius of gyration

Incorrect!

#20. With reference to anti-corrosive zincs when you do replace it with new one in case of sea water cooling engine?

If the zinc became less than 40% of its original size

If the zinc became brittle at the time of inspection

If the zinc became less than 15% of its original size

If the zinc have been in use for the last six months

Incorrect!

#21. What is a measure of the internal resistance of the fluid to the movement of the plate?

Specific viscosity

Absolute viscosity

Kinematic viscosity

Average viscosity

Incorrect!

#22. It is the equivalent reading in Fahrenheit if the temperature reading is -40 degrees Celsius.

-32

-40

+32

+40

Incorrect!

#23. What element would thickened the lubricating oil when added?

Bentonite

Potassium

Zinc

Lead

Incorrect!

#24. In chemical notation a small suffix is used with the (symbol) letter to indicate the number of _____.

Atoms

Molecules

Weight

Mass

Incorrect!

#25. What law staes that if the pressure of a confined gas is constant, the volume is directly proportional to the absolute temperature?

Dalton's law

Kirchoff's law

Law of Heat flow

Charle's law

Incorrect!

#26. With temperature held constant of a perfect gas , then the volume of a given mass is inversely proportional to the pressure of the gas is inversely proportional to the pressure of the gas.

combination gas law

Charle's Law

Boyle's Law

Standard Gas Law

Incorrect!

#27. During a change in temperature, the heat involved is known as:

sensible

latent

total

residual

Incorrect!

#28. The push or pull exerted on a body is called:

Inertia

Moment

Force

Motion

Incorrect!

#29. This kind of heat involves a transformation of matter form one physical state to another without changing its temperature.

latent heat of fusion

applied heat

sensible heat

latent heat of vaporization

Incorrect!

#30. Which of the following describes the purpose of a striker of double plate?

It provides landing surface for the sounding bob of a tank sounding tape

It provides to absorb machinery vibration

It provides a surface for the application of force

It provides to prevents valve stem over travel

Incorrect!

Finish

There are 30 questions for the actual examination for Competence 4 for OIC-EW with a passing rate of 70%. This means that you are only allowed to make 9 mistakes.

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Results

#1. . When you are starting a diesel engine at temperature below 70 deg. F the functional resistance to turning will be _________.

#2. If the pressure indicates 30 PSI what will be the equivalent in kgs/cm2?

#3. What is the approximate composition of air by mass?

#4. Two governors on diesel engines driving the same load require which of the following characteristics?

#5. What are the product of kinetic viscosity and the density of the oil at the temperature?

#6. Turbulence is created in the cylinder in the cylinders of a diesel engine to _______.

#7. What kind of heat must be added to convert and ice (solid heat) to water (liquid state)?

#8. This type of heat when added to a substance, it will result to a change in physical state without changing its temperature.

#9. This is the temperature of a liquid in which boiling occurs?

#10. What is the equivalent of zero (0) Kelvin to degrees centrigade?

#11. The pressure gauge indicates 2.5 kgs. Per cm2. What will be the pressure equivalent in pounds per square inch ( PSI )?

#12. What is the distance from the centroidal axis of an area at which the entire area could be concentrated?

#13. Power is defined as the _______.

#14. The relationship between viscosity and specific gravity is:

#15. With a decreasing scavenging air pressure and increasing scavenging air temperature, the specific fuel consumption of the engine will:

#16. A tonnage tax is levied according to the (NOT ENGINEERING QUESTION) INVALID

#17. What is the chemical symbols for fuel butane?

#18. . The removing of moisture from air is a process known as :

#19. The property of the body which resist changes in its state of rest or uniform motion in a straight called ________.

#20. With reference to anti-corrosive zincs when you do replace it with new one in case of sea water cooling engine?

#21. What is a measure of the internal resistance of the fluid to the movement of the plate?

#22. It is the equivalent reading in Fahrenheit if the temperature reading is -40 degrees Celsius.

#23. What element would thickened the lubricating oil when added?

#24. In chemical notation a small suffix is used with the (symbol) letter to indicate the number of _____.

#25. What law staes that if the pressure of a confined gas is constant, the volume is directly proportional to the absolute temperature?

#26. With temperature held constant of a perfect gas , then the volume of a given mass is inversely proportional to the pressure of the gas is inversely proportional to the pressure of the gas.

#27. During a change in temperature, the heat involved is known as:

#28. The push or pull exerted on a body is called:

#29. This kind of heat involves a transformation of matter form one physical state to another without changing its temperature.

#30. Which of the following describes the purpose of a striker of double plate?

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