ABSA 3B2 – Review Exam Questions
And Answers
CHAPTER'S 1 2 & 3 - 14 questions on exam chapter 1
199. In an impulse steam turbine nozzle, the following events take
place:
1) The steam pressure decreases
2) The enthalpy of the steam decreases
3) The velocity of the steam increases
4) The volume of the steam increases
a. 1, 2, 4
b. 1, 3, 4
c. 2, 3, 4
d. 1, 2, 3, 4
e. 1, 2, 3 -
correct answer ✅d. 1, 2, 3, 4
200. Turbine nozzles convert heat energy into:
a. Potential energy
b. Enthalpy
c. Eddy-currents
d. Kinetic energy
,ABSA 3B2 – Review Exam Questions
And Answers
e. Pressure -
correct answer ✅d. Kinetic energy
201. The purpose of the bucket or moving blade on the rotor is to
convert the ____________ energy of the steam into ________
energy:
a. heat, potential
b. kinetic, useful
c. kinetic, mechanical
d. heat, kinetic
e. mechanical, kinetic -
correct answer ✅c. kinetic, mechanical
2. In an impulse turbine as the steam passes through the moving
blades the ________ drops but the ______ remains the same:
a. velocity, pressure
b. enthalpy, velocity
c. pressure, velocity
d. volume, velocity
e. velocity, kinetic energy -
correct answer ✅a. velocity, pressure
,ABSA 3B2 – Review Exam Questions
And Answers
203. The pressure at the outlet from the moving blades is the same
as the pressure at the inlet to the moving blades in __________
turbine:
a. a topping
b. a reaction
c. a back-pressure
d. an impulse
e. an extraction -
correct answer ✅d. an impulse
204. Steam turbine stationary nozzles serve to:
1) Decrease steam pressure
2) Increase steam enthalpy
3) Decrease steam friction
4) Increase steam velocity
a. 1, 2, 3
b. 1, 3, 4
c. 1, 4
d. 2, 3
e. 2, 3, 4 -
correct answer ✅c. 1, 4
, ABSA 3B2 – Review Exam Questions
And Answers
205. On an extraction turbine the extraction pressure is:
a. Not critical
b. Varied according to turbine load
c. Maintained constant regardless of turbine load
d. Proportional to the turbine load
e. Reduced if load increases -
correct answer ✅c. Maintained constant regardless of turbine load
206. A back-pressure turbine which exhaust steam to an old boiler
header still supplying steam to an old boiler header still supplying
steam to an old lower pressure turbine is called:
a. Condensing-bleeder turbine
b. Cross compound turbine
c. Condensing turbine
d. Topping turbine
e. Mixed pressure turbine -
correct answer ✅d. Topping turbine
207. A topping turbine is a special application of a ________
turbine:
And Answers
CHAPTER'S 1 2 & 3 - 14 questions on exam chapter 1
199. In an impulse steam turbine nozzle, the following events take
place:
1) The steam pressure decreases
2) The enthalpy of the steam decreases
3) The velocity of the steam increases
4) The volume of the steam increases
a. 1, 2, 4
b. 1, 3, 4
c. 2, 3, 4
d. 1, 2, 3, 4
e. 1, 2, 3 -
correct answer ✅d. 1, 2, 3, 4
200. Turbine nozzles convert heat energy into:
a. Potential energy
b. Enthalpy
c. Eddy-currents
d. Kinetic energy
,ABSA 3B2 – Review Exam Questions
And Answers
e. Pressure -
correct answer ✅d. Kinetic energy
201. The purpose of the bucket or moving blade on the rotor is to
convert the ____________ energy of the steam into ________
energy:
a. heat, potential
b. kinetic, useful
c. kinetic, mechanical
d. heat, kinetic
e. mechanical, kinetic -
correct answer ✅c. kinetic, mechanical
2. In an impulse turbine as the steam passes through the moving
blades the ________ drops but the ______ remains the same:
a. velocity, pressure
b. enthalpy, velocity
c. pressure, velocity
d. volume, velocity
e. velocity, kinetic energy -
correct answer ✅a. velocity, pressure
,ABSA 3B2 – Review Exam Questions
And Answers
203. The pressure at the outlet from the moving blades is the same
as the pressure at the inlet to the moving blades in __________
turbine:
a. a topping
b. a reaction
c. a back-pressure
d. an impulse
e. an extraction -
correct answer ✅d. an impulse
204. Steam turbine stationary nozzles serve to:
1) Decrease steam pressure
2) Increase steam enthalpy
3) Decrease steam friction
4) Increase steam velocity
a. 1, 2, 3
b. 1, 3, 4
c. 1, 4
d. 2, 3
e. 2, 3, 4 -
correct answer ✅c. 1, 4
, ABSA 3B2 – Review Exam Questions
And Answers
205. On an extraction turbine the extraction pressure is:
a. Not critical
b. Varied according to turbine load
c. Maintained constant regardless of turbine load
d. Proportional to the turbine load
e. Reduced if load increases -
correct answer ✅c. Maintained constant regardless of turbine load
206. A back-pressure turbine which exhaust steam to an old boiler
header still supplying steam to an old boiler header still supplying
steam to an old lower pressure turbine is called:
a. Condensing-bleeder turbine
b. Cross compound turbine
c. Condensing turbine
d. Topping turbine
e. Mixed pressure turbine -
correct answer ✅d. Topping turbine
207. A topping turbine is a special application of a ________
turbine:
