ELEC 6400 - Internal Combustion Gen-Sets (Chp 33)

Question 1

The most common starting method on large diesel engines used as drivers for auxiliary generator sets is:

A) Electric motor starting
B) Exciter generator reverse starting
C) Compressed air motor starting
D) Gas or steam turbine auxiliary shaft starting
E) Compressed air to cylinder starting

Answer 1

E) Compressed air to cylinder starting

Question 2

To be synchronized with and electrical system an alternator set must have identical:

A) Frequency, phase, and current
B) Frequency, current, and voltage
C) Current, voltage, and phase
D) Frequency, voltage, and current
E) Frequency, voltage, and phase

Answer 2

E) Frequency, voltage, and phase

Question 3

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 metering usage panel
B) An electrical panel
C) A motor/generator control panel
D) A remote starting panel
E) A synchronizing panel

Answer 3

E) A synchronizing panel

Question 4

Standby generation must be:

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

Answer 4

D) Maintained ready to be started at any time

Question 5

An indicator of the efficiency of a diesel engine is:

A) Jacket water temperature
B) Jacket water level
C) Cylinder exhaust temperature
D) Lube oil level
E) Lube oil pressure

Answer 5

C) Cylinder exhaust temperature

Question 6

Standby generator sets require adequate:

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

Answer 6

B) Air, fuel, coolant, and lubricating oil