MM "A School" Test 1 with Verified Answers
1. Anything which flows or can be
made to flow is called...
FLUID
2. Force is measured in what units? POUNDS OR TONS
3. Fluid power is defined as what? POWER TRANSMITTED & CON-
TROLLED THROUGH THE USE OF A
PRESSURIZED FLUID
4. Streamline flow where...
1. Anything which flows or can be FLUID
made to flow is called...
2. Force is measured in what units? POUNDS OR TONS
3. Fluid power is defined as what? POWER TRANSMITTED & CON-
TROLLED THROUGH THE USE OF A
PRESSURIZED FLUID
4. Streamline flow where particles LAMINAR FLOW
flow smoothly is called?
5. A random or erratic pattern of flow TURBULENT FLOW
is called?
6. What is the purpose of a hydraulic CONVERT MECHANICAL FORCE &
pump? MOTION INTO INCREASED FLUID
PRESSURE
7. What are the 2 classifications of FIXED DISPLACEMENT & VARIBLE
hydraulic pumps? DISPLACEMENT
8. Which hydraulic pump delivers flu- FIXED(CONSTANT)
id at a constant flow rate?
9. A pump that can change fluid flow VARIABLE
rate without changing the speed of
the prime mover is called?
10. What are the 2 types of fluid stor- RESERVOIRS FOR SMALL SYS-
age and what sized systems are TEMS,
they used for? SUMPS FOR LARGE SYSTEMS
11. What valve maintains system pres- UNLOADING VALVE
sure by diverting fluid flow back to
sumps or reservoirs?
12. What converts fluid power to me- ACTUATOR
chanical motion & force?
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, MM "A School" Test 1 with Verified Answers
13. What converts fluid power to linear CYLINDER
mechanical force & motion?
14. What can be made to work in ei- SINGLE CYLINDER; SINGLE PISTON
ther a single direction or both di-
rections?
15. What type of actuator is used for TELESCOPING
long work strokes?
16. What valve maintains a specific SEQUENCING VALVE
pressure on one area of the sys-
tem?
17. What is the purpose of hydraulic REMOVES HEAT GENERATED BY
system heat exchangers? THE EQUIPMENT TO MAINTAIN THE
OPTIMAL OPERATING TEMP. OF
THE HYDRAULIC FLUID
18. True or False: Liquid is com- FALSE
pressed to create hydraulic pres-
sure?
19. What is the purpose of the steering CONVERT AN ELECTRICAL SIGNAL
gear? FROM BRIDGE OR MECHANICAL
SIGNAL FROM TRICKWHEEL TO PO-
SITION & HOLD THE SHIP'S RUD-
DER AT A SELECTED ANGLE UN-
DER LOAD CONDITIONS
20. What is the purpose of the main PROVIDES HIGH PRESSURE HY-
pump? DRAULIC FLUID TO RAM CYLINDER
TO MOVE RAM
21. What is the purpose of the auxiliary PROVIDES FLUID FOR THE REPLIN-
pumps? SHING & SERVO CIRCUITS
22. What is meant by the term "Elec- ELECTRIC MOTOR DRIVEN HY-
tro-Hydraulic" system? DRAULIC PUMP THAT CREATES
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