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Stationary Engineer Practice Quiz Latest Update Actual Exam Questions and 100% Verified Detailed Correct Answers with Rationale Guaranteed A+ Verified by Professor
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Course
Stationary Engineer Practice
Institution
Stationary Engineer Practice
Stationary Engineer Practice Quiz Latest Update Actual Exam Questions and 100% Verified Detailed Correct Answers with Rationale Guaranteed A+ Verified by Professor
Stationary Engineer Practice Quiz Latest Update
2024-2025 Actual Exam Questions and 100%
Verified Detailed Correct Answers with Rationale
Guaranteed A+ Verified by Professor
Questions and Answers
• 1.
1. The lowest visible water level in the gauge glass is ___ above the top of
the boiler tubes on a scotch marine boiler.
o A.
2"
o B.
3"
o C.
12"
o D.
6"
• Correct Answer
A. 2"
, • Explanation
The lowest visible water level in the gauge glass is 2" above the top of the boiler
tubes on a scotch marine boiler. This is important because it ensures that there is
enough water in the boiler to prevent overheating and damage to the tubes. It
also allows for proper monitoring and maintenance of the water level in the boiler.
• Rate this question:
• 32
• 0
• 2.
1. The three classes of feedwater pumps are _______________,
_______________, and _____________.
o A.
Reciprocating, centrifugal, and rotary
o B.
Reciprocating, centrifugal, and screw
o C.
Reciprocating, scroll, and centrifugal
o D.
Positive displacement, reciprocating, and centrifugal
• Correct Answer
A. Reciprocating, centrifugal, and rotary
• Explanation
The correct answer is "reciprocating, centrifugal, and rotary". These three classes
refer to different types of feedwater pumps. Reciprocating pumps use a piston or
plunger to create pressure and move the fluid. Centrifugal pumps use centrifugal
force to move the fluid and are commonly used in industrial applications. Rotary
pumps use rotating mechanisms to move the fluid, such as gears or vanes.
Therefore, the correct answer includes all three types of pumps.
• Rate this question:
• 13
• 0
, • 3.
1. The minimum size for the connection in between the gauge glass and the
water column is _____.
o A.
3/8"
o B.
3/4"
o C.
1/2"
o D.
1/4"
• Correct Answer
C. 1/2"
• Explanation
The minimum size for the connection between the gauge glass and the water
column is 1/2". This means that the diameter of the connection should be half an
inch. It is important to have a proper size for the connection to ensure that there
is adequate flow of water between the gauge glass and the water column. Having
a smaller size could restrict the flow, while a larger size may lead to leakage or
improper readings. Therefore, 1/2" is the correct minimum size for the
connection.
• Rate this question:
• 11
• 0
• 4.
1. _____________ is the replacement for refrigerant R-22.
o A.
R-410a
o B.
, R-134a
o C.
R-401a
o D.
R-123
• Correct Answer
A. R-410a
• Explanation
R-410a is the replacement for refrigerant R-22. Refrigerant R-22 is being phased
out due to its harmful effects on the ozone layer. R-410a is a more
environmentally friendly alternative that does not contribute to ozone depletion. It
is commonly used in air conditioning systems as a refrigerant.
• Rate this question:
• 6
• 0
• 5.
1. A refrigerant system using R-134a is running at 148 psi on the discharge
and 16psi on the suction. What is the compression ratio of the
compression?
o A.
9.2:1
o B.
5.3:1
o C.
10:1
o D.
8:1
• Correct Answer
B. 5.3:1
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