3/13/25, 1:49 PM Detroit Stationary Engineer 3rd Class Practice Exam 1 (2025) comprehensive questions and verified detailed solutions ( MULT…
Detroit Stationary Engineer 3rd Class Practice
Exam 1 (2025) comprehensive questions and
verified detailed solutions ( MULTIPLE
CHOICES) |100% CORRECT!!
Save
Terms in this set (100)
Lost motion in a duplex a. Is necessary
direct acting boiler feed
pump:
a. Is necessary
b. Should be avoided
c. Is due to wear on the
tappets and callas.
A scotch marine boiler is: a. Horizontal fire tube boiler
a. Horizontal fire tube
boiler
b. Vertical fire tube boiler
c. Water tube boiler
Lead is the amount the a. Crank is on dead center
valve is open when the:
a. Crank is on dead
center
b. Valve is midway on its
stroke
c. Eccentric is exactly 90
degrees ahead of the
crank
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,3/13/25, 1:49 PM Detroit Stationary Engineer 3rd Class Practice Exam 1 (2025) comprehensive questions and verified detailed solutions ( MULT…
The slippage of a good a. 5%
pump should not exceed:
a. 5%
b. 10%
c. 15%
The engine having the c. Cross compound engine
most parts subjected to
bearing wear is:
a. Simple D slide valve
engine
b. Tandem-compound
engine
c. Cross compound
engine
A spring loaded pop a. Suddenly
safety valve opens wide,
when pressure actuated:
a. Suddenly
b. Slowly
c. Either A or B
depending on the
pressure
Of the pumps listed c. Centrifugal type
below, the one having an
over speed trip device is:
a. Reciprocating direct
acting type
b. Plunger type
c. Centrifugal type
Of the following pumps, b. Rotary pump
the one best suited for
handling viscous oils is
the:
a. Centrifugal pump
b. Rotary pump
c. Turbine pump
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, 3/13/25, 1:49 PM Detroit Stationary Engineer 3rd Class Practice Exam 1 (2025) comprehensive questions and verified detailed solutions ( MULT…
All vertical tube boilers c. Fire or water tube type
are of the:
a. Fire tube type
b. Water tube type
c. Fire or water tube type
For water service, the a. Steel
piping most subject to
corrosion:
a. Steel
b. Copper
c. Iron
While in successful c. A pressure below 14.7 psig
operation:
a. Pressure above 14.7
psig
b. Atmospheric pressure
c. A pressure below 14.7
psig
The height of the water in c. 3/4 the height of the air chamber
an air chamber of a pump
should be at least:
a. 1/4 the height of the air
chamber
b. 1/2 the height of the air
chamber
c. 3/4 the height of the air
chamber
The least amount of scale c. Superheated steam
and corrosion producing
substance in the feed
water and steam cycle is
in:
a. Feed water
b. Saturated steam
c. Superheated steam
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Detroit Stationary Engineer 3rd Class Practice
Exam 1 (2025) comprehensive questions and
verified detailed solutions ( MULTIPLE
CHOICES) |100% CORRECT!!
Save
Terms in this set (100)
Lost motion in a duplex a. Is necessary
direct acting boiler feed
pump:
a. Is necessary
b. Should be avoided
c. Is due to wear on the
tappets and callas.
A scotch marine boiler is: a. Horizontal fire tube boiler
a. Horizontal fire tube
boiler
b. Vertical fire tube boiler
c. Water tube boiler
Lead is the amount the a. Crank is on dead center
valve is open when the:
a. Crank is on dead
center
b. Valve is midway on its
stroke
c. Eccentric is exactly 90
degrees ahead of the
crank
https://quizlet.com/1017783433/detroit-stationary-engineer-3rd-class-practice-exam-1-2025-comprehensive-questions-and-verified-detailed-solut… 1/25
,3/13/25, 1:49 PM Detroit Stationary Engineer 3rd Class Practice Exam 1 (2025) comprehensive questions and verified detailed solutions ( MULT…
The slippage of a good a. 5%
pump should not exceed:
a. 5%
b. 10%
c. 15%
The engine having the c. Cross compound engine
most parts subjected to
bearing wear is:
a. Simple D slide valve
engine
b. Tandem-compound
engine
c. Cross compound
engine
A spring loaded pop a. Suddenly
safety valve opens wide,
when pressure actuated:
a. Suddenly
b. Slowly
c. Either A or B
depending on the
pressure
Of the pumps listed c. Centrifugal type
below, the one having an
over speed trip device is:
a. Reciprocating direct
acting type
b. Plunger type
c. Centrifugal type
Of the following pumps, b. Rotary pump
the one best suited for
handling viscous oils is
the:
a. Centrifugal pump
b. Rotary pump
c. Turbine pump
https://quizlet.com/1017783433/detroit-stationary-engineer-3rd-class-practice-exam-1-2025-comprehensive-questions-and-verified-detailed-solut… 2/25
, 3/13/25, 1:49 PM Detroit Stationary Engineer 3rd Class Practice Exam 1 (2025) comprehensive questions and verified detailed solutions ( MULT…
All vertical tube boilers c. Fire or water tube type
are of the:
a. Fire tube type
b. Water tube type
c. Fire or water tube type
For water service, the a. Steel
piping most subject to
corrosion:
a. Steel
b. Copper
c. Iron
While in successful c. A pressure below 14.7 psig
operation:
a. Pressure above 14.7
psig
b. Atmospheric pressure
c. A pressure below 14.7
psig
The height of the water in c. 3/4 the height of the air chamber
an air chamber of a pump
should be at least:
a. 1/4 the height of the air
chamber
b. 1/2 the height of the air
chamber
c. 3/4 the height of the air
chamber
The least amount of scale c. Superheated steam
and corrosion producing
substance in the feed
water and steam cycle is
in:
a. Feed water
b. Saturated steam
c. Superheated steam
https://quizlet.com/1017783433/detroit-stationary-engineer-3rd-class-practice-exam-1-2025-comprehensive-questions-and-verified-detailed-solut… 3/25
