Engineering Questions with Answers - Multiple Choice Questions
Steam Turbines MCQ’s – Mixed Pressure Turbine Performance
1 - Question
Mixed pressure steam turbines are driven by _________ kinds of steam.
a) 1
b) 2 or more
c) 3
d) 5
View Answer
Answer: b
Explanation: Mixed pressure turbines are driven by two or more kinds of steam.
2 - Question
In mixed pressure turbine existing boiler can be combined with new boiler.
a) True
b) False
View Answer
Answer: a
Explanation: Both the steams are fed into turbine independently and in this type of turbine existing boiler can be combined with new boiler.
3 - Question
In dual heat sources optimum heat for each condition cannot be selected in mixed pressure turbine.
a) True
b) False
View Answer
Answer: b
Explanation: In dual heat sources optimum heat for each condition can be selected in mixed pressure turbine.
4 - Question
Radial turbines gain their high efficiencies at the speed ratio of ___________
a) 0.5
b) 0.7
c) 1
d) 2.6
View Answer
Answer: c
Explanation: Radial turbines get their peak efficiencies at the speed ratio of 0.7
5 - Question
Radial turbine has _______ degree of freedom when compared to mixed flow turbine.
a) more
b) less
c) equal
d) none of the mentioned
View Answer
Answer: b
Explanation: Radial turbine has less degree of freedom when compared to mixed flow turbine.
6 - Question
The blade inlet angle at radial blade section is ________ in mixed flow turbine.
a) non zero
b) zero
c) depends on the mass flow rate
d) none of the mentioned
View Answer
Answer: a
Explanation: The blade inlet angle at radial blade section is non zero in mixed flow turbine.
7 - Question
Stress levels in mixed flow turbine are ________
a) high
b) less
c) medium
d) none of the mentioned
View Answer
Answer: b
Explanation: Stress levels in mixed flow turbines are less.
8 - Question
Mixed flow turbines are designed at ________ inertia.
a) high
b) medium
c) low
d) none of the mentioned
View Answer
Answer: c
Explanation: Mixed flow turbines are designed at low inertia
9 - Question
Radial turbines are characterized by ____________
a) radial fibers
b) centrifugal compressors
c) radial compressors
d) none of the mentioned
View Answer
Answer: a
Explanation: Radial turbines are characterized by radial fibers.
10 - Question
Turbochargers in automobiles works under _______ pulsation inlet flows.
a) low
b) high
c) medium
d) none of the mentioned
View Answer
Answer: b
Explanation: Turbochargers in automobiles works under high pulsation inlet flows.