Book 2 Chapter 33: Internal Combustion (IC) Engine Gen-Sets

Question 1

The alternator output must be the same as that of the system relative to which of the following?
A) The phase sequence must be the same
B) The phase must be the same
C) The frequencies must be the same
D) All of the above

Answer 1

D) All of the above

Question 2

Temperatures are very important, and sometimes the cooling system includes a __________ which has pressures associated with it.
A) Circulating pump
B) Water cooler
C) Air cooler
D) Temperature gauge

Answer 2

A) Circulating pump

Question 3

The normal supply pressure of the compressed air used for starting the engine is at about:
A) 2500 kPa (362.6psi)
B) 1500 kPa (217.6psi)
C) 2000 kPa (290.1psi)
D) 1250 kPa (181.3psi)

Answer 3

C) 2000 kPa (290.1psi)

Question 4

The most common starting method on large diesel engines used as drivers for auxiliary generator sets is:
A) Gas or steam turbine auxiliary shaft starting
B) Electric motor starting
C) Compressed air motor starting
D) Compressed air to cylinder starting
E) Exciter generator reverse starting

Answer 4

D) Compressed air to cylinder starting

Question 5

To be synchronized with an electrical system an alternator set must have identical:
A) Frequency, voltage, and phase
B) Current, voltage, and phase
C) Frequency, current, and voltage
D) Frequency, phase and current
E) Frequency, voltage and current

Answer 5

A) Frequency, voltage, and phase

Question 6

The name of the panel that allows an internal combustion engine generator set to automatically generate power into the grid is called a/an:
A) A motor/generator control panel
B) An electrical panel
C) A metering usage panel
D) A remote starting panel
E) A synchronizing panel

Answer 6

E) A synchronizing panel

Question 7

Standby generation must be:
A) Able to supply 60% load
B) At lease 50% available
C) Maintained ready to be started at any time
D) Used for spare parts
E) Only able to be used when power is overpriced

Answer 7

C) Maintained ready to be started at any time

Question 8

An indicator of the efficiency of a diesel engine is:
A) Jacket water temperature
B) Lube oil pressure
C) Lube oil level
D) Cylinder exhaust temperature
E) Jacket water level

Answer 8

D) Cylinder exhaust temperature

Question 9

Standby generator sets require adequate:
A) Gas pressure, heating supply, lighting, and fan pressure
B) Refrigerant, water pressure, voltage, and steam pressure
C) Domestic water flow, hot water temp, bus load, and chiller load
D) Condenser water, air pressure, pH, and biocide level
E) Air, fuel, coolant, and lubricating oil

Answer 9

E) Air, fuel, coolant, and lubricating oil

Question 10

Which of the following is not a starting method for IC Gen-sets?
A) Compressed air to cylinder starting
B) Manual crank
C) Electric
D) Compressed air starting motor

Answer 10

B) Manual crank

Question 11

Temperatures are very important, and sometimes the cooling system includes a ________ which has pressures associated with it.
A) Temperature gauge
B) Water cooler
C) Air cooler
D) Cooling tower
E) Circulating pump

Answer 11

E) Circulating pump

Question 12

The facilities alternator output must be the same as that of the utilities system relative to which of the following?
A) The wattage on each must be the same
B) The amperage on each must be the same
C) The impedance on each must be the same
D) The voltage on each must be the same
E) The resistance on each must be the same

Answer 12

D) The voltage on each must be the same

Question 13

Proper routine pre-start and operational checks may include all of the following except the:
A) Lubrication system
B) Machine exhaust temperatures
C) Atmospheric weather conditions
D) Start-up energy used
E) Cooling system

Answer 13

C) Atmospheric weather conditions

Question 14

An electric starter rotates an internal combustion engine via a ring gear on the ___________.
A) Governor
B) Flywheel
C) Crankshaft
D) Reducing gear
E) Driveshaft

Answer 14

B) Flywheel

Question 15

The normal supply pressure of the compressed air used for starting the engine is at about:
A) 3000kPa (435.1psi)
B) 1500kPa (217.5psi)
C) 2000kPa (290.1psi)
D) 2500kPa (362.6psi)
E) 1250kPa (181.3psi)

Answer 15

C). 2000kPa (290.1psi)

Question 16

The facilities alternator output must be the same as that of the utilities system relative to which of the following:
A) The wattage on each must be the same
B) The resistance on each must be the same
C) The amperage on each must be the same
D) The frequencies must be the same
E) The impedance on each must be the same

Answer 16

D) The frequencies must be the same

Question 17

If compressed air is used to start an IC gen-set, the _________ is a critical issue.
A) The battery voltage
B) Shaft temperature
C) Cylinder pressure
D) Speed of rotation

Answer 17

C) Cylinder pressure

Question 18

Larger engines incorporate a system whereby compressed air is directed _______ in order to cause engine rotation.
A) To the motor crank
B) To the turbine
C) On to the flywheel
D) To the starter motor
E) Onto the top of the piston

Answer 18

E) Onto the top of the piston

Question 19

An electric starter motor on an internal combustion engine is usually supplied with _________ volt DC power.
A) 12
B) 6
C) 24
D) 32
E) 110

Answer 19

A) 12