TRBN 6013 - Microturbines (Chp 32)

Question 1

Starting a microturbine:

A) Cannot be automatic
B) Requires constant supervision
C) Needs extensive operator input
D) Requires a large checklist
E) Is fully automatic

Answer 1

E) Is fully automatic

Question 2

A microturbine system is most likely not to have a/an:

A) Alternator
B) Control system
C) Rotating speed less than 50 000 rev/min
D) Insulation package to control noise
E) Heat recovery boiler on the exhaust

Answer 2

C) Rotating speed less than 50 000 rev/min

Question 3

What types of energy is supplied to a system by a microturbine?

A) Pulse and potential
B) Mechanical and translational
C) Electricity and heat
D) Hydraulic and vibrational
E) Kinetic and momentum

Answer 3

C) Electricity and heat

Question 4

The lubricating fluid in a microturbine is:

A) Alcohol
B) Graphite
C) Air
D) Helium
E) Mineral oil

Answer 4

C) Air

Question 5

A major advantage of microturbines is that they:

A) Are very quiet in operation
B) Require no pressurized oil system for lubrication
C) Automatically produce 60 Hz electricity
D) Use steam for fuel
E) Produce very cool exhaust

Answer 5

B) Require no pressurized oil system for lubrication

Question 6

The output from a microturbine is:

A) In phase with the system grid
B) Low frequency
C) Connected directly to the system grid
D) Synchronized by means of a converter
E) Supplied at a constant frequency

Answer 6

D) Synchronized by means of a converter

Question 7

A microturbine combined heating system consists of:

A) Axial compressor, combustor, turbine, boiler and hydronic system
B) Compressor, gear box, flame tube, condenser
C) Reciprocating compressor, combustor, turbine, boiler and hydronic heating system
D) Recycle gas generator, turbine, boiler, incinerator
E) Rotary Gear compressor, turbine, generator

Answer 7

A) Axial compressor, combustor, turbine, boiler and hydronic system