CDC Power Pro
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1. What will happen if the generator's voltage is incompatible with the electri-
cal service?
-The voltage regulator will struggle to maintain the correct voltage
-The dampener windings on the rotor will create an imbalance load
-Equipment will burn up or operate incorrectly
-Load will operate as the normal until correct voltage is supplied: Equipment
will burn up or operate incorrectly
2. Which of the following does not need to be known to complete a load
survey?
-Frequency the load operates on
-Voltage supplied to the load
-Open transition or Closed transition
-Number of phases supplied to the facility: Open transition or Closed transition
3. Why must the transfer switch have a switched neutral?
-To allow for stepping the load onto the generator
-To protect the facility from ground faults occurring on the generator
-To protects the generator from ground faults occurring on the utility
-To supply the load with correct voltage and frequency: To protects the gener-
ator from ground faults occurring on the utility
4. In order for the facility load to operate properly the generator and transfer
switch must do what?
-Convert voltage and frequency to match the electrical service
-Supply higher voltage to push the current faster
-Come with a load to ensure enough load is available.
-Provide the same number of phases as the electrical service: Provide the same
number of phases as the electrical service
5. What are PLC's replacing?
-DCS
-ECMs
-Programmable Logic Controllers
-Electromechanical Relays: Electromechanical Relays
6. How is power supplied to single unit PLCs?
-Modularly
-internally
-Thermal Dynamics
-Externally: Internally
7. What hosts the PLC logic, memory and communications?
-Random Access Memory
-Inputs
, CDC Power Pro
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-Central Processing Unit
-Outputs: Central Processing Unit
8. What was invented to ease the transition for technicians programming
PLCs, while they replaced mechanical relay logic systems?
-Low Level Text
-Ladder Logic
-Sequential Function Charts
-CPUs: Ladder Logic
9. What type of corrosion is known to be the most common and destructive
when two different types of metal contact each other with moisture present?
-Galvanic
-Intergranular
-Pitting
-Stress: Galvanic
10. Which Mechanical removal type uses abrasive paper to remove light cor-
rosion not deeply pitted into metal?
-Sanding
-Scuff Sanding
-Wire Brushing
-Grinding: Sanding
11. Which is a temporary protection of Painted or unpainted surfaces where
the coating has been damaged or removed?
-Paint
-Sealent
-Both A & B
-Compound: Compound
12. Which common cleaning removal type combines mechanical force from
spray with the reactions of the chemical used in the solution?
-Immersion
-Foamers
-Spray Washing
-Hand: Spray Washing
13. What is the purpose of installing engine pre-heating devices?
-To suspend containment in the lubrication oil prior to conducting annual
maintenance on a generator ser
-to keep the scale from building up in the engine and radiator jackets
-to prevent damage to the starter motor caused by long crank cycle duration
-To prevent damage caused by cold starts and rapid acceleration to rated
RPM: To prevent damage caused by cold starts and rapid acceleration to rated RPM
, CDC Power Pro
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14. What is the weakness of the Direct Immersion (Coolant type) pre-heating
device?
-Uses diesel fuel as the energy source to heat up the engine coolant
-Heat loss over distance creates cold pockets
-If the heater is at or above the water jacket, it will ineffectively heat the engine
-Must be located by the heater, close enough that the circulating pump will not
be overworked: Heat loss over distance creates cold pockets
15. Which Method of coolant pre-heating function strictly operates off
on-board battery voltage?
-Force Circulation
-Direct Immersion
-Fuel-fired
-Thermosiphon: Fuel-fired
16. Which method of air pre-heating strictly operates off on-board battery
voltage
-Forced circulation
-Direct immersion
-Heating blankets
-Glow Plugs: Glow Plugs
17. When the piston begins to travel downward in the cylinder, what occurs?
-Creates a combustion event
-ignition occurs
-Creates a vacuum
-Injection occurs: Creates a vacuum
18. When fuel is mixed with air and ignited by an electric spark from the
ignition system, what occurs?
-Combustion
-Scavenging
-BDC
-Compression: Combustion
19. What is the purpose of the flywheel?
-Stores rotational energy to ensure rotation of the crankshaft
-Holds sprigs and valves in place
-Controls the opening and closing of intake and exhaust valves
-Offsets the weight of the connecting rod and pistons: Stores rotational energy
to ensure rotation of the crankshaft
20. If the piston reaches its upper limit of travel, what is it called?
-Top Dead Center (TDC)
-Bottom Dead Center (BTC)
, CDC Power Pro
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-Exhaust Stroke
-Compression Stroke: Top Dead Center (TDC)
21. How may complete revolutions of the crankshaft are required for a
two-stroke engine
-One
-Two
-Three
-Four: One
22. What type of valves are located in the overhead valve train of a two-stroke
diesel engine?
-Relief
-Intake
-Exhaust
-Fuel: Exhaust
23. What supplies fresh air to the air box in a two stroke diesel engine?
-Supercharger
-Blower
-Auxiliary fuel pump
-Fuel pump: Blower
24. When does the intake event begins on a two-stroke diesel engine?
-When the piston uncovers the intake ports
-when the piston moves upwards
-when the blower starts to operate
-when the piston moves upward and the blower starts to operate: When the
piston uncovers the intake ports
25. If coolant comes into direct contact with the cylinder liner, then what type
of liner is used?
-A lubrication liner
-An air cooled liner
-A dry liner
-A wet liner: A wet liner
26. If the cylinder head forms the top of the combustion chamber, then what
component forms the bottom of the combustion chamber?
-The oil pan
-The valve train
-The connecting rod
-The piston: The piston
27. What is the purpose of a four-stroke diesel engine?
-Convert the hydraulic energy of burning fuel, into the mechanical energy of
Study online at https://quizlet.com/_edjkde
1. What will happen if the generator's voltage is incompatible with the electri-
cal service?
-The voltage regulator will struggle to maintain the correct voltage
-The dampener windings on the rotor will create an imbalance load
-Equipment will burn up or operate incorrectly
-Load will operate as the normal until correct voltage is supplied: Equipment
will burn up or operate incorrectly
2. Which of the following does not need to be known to complete a load
survey?
-Frequency the load operates on
-Voltage supplied to the load
-Open transition or Closed transition
-Number of phases supplied to the facility: Open transition or Closed transition
3. Why must the transfer switch have a switched neutral?
-To allow for stepping the load onto the generator
-To protect the facility from ground faults occurring on the generator
-To protects the generator from ground faults occurring on the utility
-To supply the load with correct voltage and frequency: To protects the gener-
ator from ground faults occurring on the utility
4. In order for the facility load to operate properly the generator and transfer
switch must do what?
-Convert voltage and frequency to match the electrical service
-Supply higher voltage to push the current faster
-Come with a load to ensure enough load is available.
-Provide the same number of phases as the electrical service: Provide the same
number of phases as the electrical service
5. What are PLC's replacing?
-DCS
-ECMs
-Programmable Logic Controllers
-Electromechanical Relays: Electromechanical Relays
6. How is power supplied to single unit PLCs?
-Modularly
-internally
-Thermal Dynamics
-Externally: Internally
7. What hosts the PLC logic, memory and communications?
-Random Access Memory
-Inputs
, CDC Power Pro
Study online at https://quizlet.com/_edjkde
-Central Processing Unit
-Outputs: Central Processing Unit
8. What was invented to ease the transition for technicians programming
PLCs, while they replaced mechanical relay logic systems?
-Low Level Text
-Ladder Logic
-Sequential Function Charts
-CPUs: Ladder Logic
9. What type of corrosion is known to be the most common and destructive
when two different types of metal contact each other with moisture present?
-Galvanic
-Intergranular
-Pitting
-Stress: Galvanic
10. Which Mechanical removal type uses abrasive paper to remove light cor-
rosion not deeply pitted into metal?
-Sanding
-Scuff Sanding
-Wire Brushing
-Grinding: Sanding
11. Which is a temporary protection of Painted or unpainted surfaces where
the coating has been damaged or removed?
-Paint
-Sealent
-Both A & B
-Compound: Compound
12. Which common cleaning removal type combines mechanical force from
spray with the reactions of the chemical used in the solution?
-Immersion
-Foamers
-Spray Washing
-Hand: Spray Washing
13. What is the purpose of installing engine pre-heating devices?
-To suspend containment in the lubrication oil prior to conducting annual
maintenance on a generator ser
-to keep the scale from building up in the engine and radiator jackets
-to prevent damage to the starter motor caused by long crank cycle duration
-To prevent damage caused by cold starts and rapid acceleration to rated
RPM: To prevent damage caused by cold starts and rapid acceleration to rated RPM
, CDC Power Pro
Study online at https://quizlet.com/_edjkde
14. What is the weakness of the Direct Immersion (Coolant type) pre-heating
device?
-Uses diesel fuel as the energy source to heat up the engine coolant
-Heat loss over distance creates cold pockets
-If the heater is at or above the water jacket, it will ineffectively heat the engine
-Must be located by the heater, close enough that the circulating pump will not
be overworked: Heat loss over distance creates cold pockets
15. Which Method of coolant pre-heating function strictly operates off
on-board battery voltage?
-Force Circulation
-Direct Immersion
-Fuel-fired
-Thermosiphon: Fuel-fired
16. Which method of air pre-heating strictly operates off on-board battery
voltage
-Forced circulation
-Direct immersion
-Heating blankets
-Glow Plugs: Glow Plugs
17. When the piston begins to travel downward in the cylinder, what occurs?
-Creates a combustion event
-ignition occurs
-Creates a vacuum
-Injection occurs: Creates a vacuum
18. When fuel is mixed with air and ignited by an electric spark from the
ignition system, what occurs?
-Combustion
-Scavenging
-BDC
-Compression: Combustion
19. What is the purpose of the flywheel?
-Stores rotational energy to ensure rotation of the crankshaft
-Holds sprigs and valves in place
-Controls the opening and closing of intake and exhaust valves
-Offsets the weight of the connecting rod and pistons: Stores rotational energy
to ensure rotation of the crankshaft
20. If the piston reaches its upper limit of travel, what is it called?
-Top Dead Center (TDC)
-Bottom Dead Center (BTC)
, CDC Power Pro
Study online at https://quizlet.com/_edjkde
-Exhaust Stroke
-Compression Stroke: Top Dead Center (TDC)
21. How may complete revolutions of the crankshaft are required for a
two-stroke engine
-One
-Two
-Three
-Four: One
22. What type of valves are located in the overhead valve train of a two-stroke
diesel engine?
-Relief
-Intake
-Exhaust
-Fuel: Exhaust
23. What supplies fresh air to the air box in a two stroke diesel engine?
-Supercharger
-Blower
-Auxiliary fuel pump
-Fuel pump: Blower
24. When does the intake event begins on a two-stroke diesel engine?
-When the piston uncovers the intake ports
-when the piston moves upwards
-when the blower starts to operate
-when the piston moves upward and the blower starts to operate: When the
piston uncovers the intake ports
25. If coolant comes into direct contact with the cylinder liner, then what type
of liner is used?
-A lubrication liner
-An air cooled liner
-A dry liner
-A wet liner: A wet liner
26. If the cylinder head forms the top of the combustion chamber, then what
component forms the bottom of the combustion chamber?
-The oil pan
-The valve train
-The connecting rod
-The piston: The piston
27. What is the purpose of a four-stroke diesel engine?
-Convert the hydraulic energy of burning fuel, into the mechanical energy of
