4-54.
Which of the following statements
4-57.
concerning the operation of the
vane-type motor illustrated in
figure 10-13 of your textbook is
false?
1.
The rotor turns because area
A is greater than area B
2.
The pressure of the driving
force is equal in all
directions
3.
When the rotor turns
clockwise,
the vanes tend to
bend backward due to
centrifugal force
4.
The potential energy of the
driving force is converted
into kinetic energy in the
form of rotary motion and
force
4-55.
Piston-type motors and variable-
displacement pumps are often
combined to form a hydraulic
transmission.
The advantages of
such a transmission over a
mechanical transmission include
which of the following?
4-58.
1.
Smooth acceleration and
deceleration
2.
Shock load effect reduction
3.
Smooth operating action
4.
All of the above
REFER TO FIGURE 10-16 IN YOUR TEXTBOOK
IN ANSWERING QUESTIONS 4-56 THROUGH
4-58.
4-56.
The direction of the hydraulic
motor is controlled by which of
the
1.
2.
3.
4.
Which of the following statements
concerning the design of the
hydraulic transmission
illustrated in figure 10-16 of
your textbook is true?
1.
The A-end is a variable-
displacement axial-piston
motor, and the B-end is a
fixed-displacement axial-
piston pump
2.
The A-end is a fixed-
displacement axial-piston
pump , and the B-end is a
variable-displacement axial-
piston motor
3.
The A-end is a variable-
displacement axial-piston
pump, and the B-end is a
fixed-displacement axial-
piston motor
4.
The A-end is a fixed-
displacement axial-piston
motor, and the B-end is a
variable displacement axial-
piston pump
The B-end of the speed gear is a
fixed-displacement motor whose
pistons make a full stroke for
every revolution of the output
shaft
1.
True
2.
False
Learning Objective:
Identify
functions, operating
characteristics, and construction
features of various types of
following components?
turbines.
Electric motor
Hydraulic pump
4-59.
Which of the following is NOT a
Prime mover
use of turbines?
B-end
1.
Convert kinetic energy of gas
to mechanical energy
2.
Supply fluid flow in
hydraulic systems
3.
Drive electric generators
4.
Drive pumps
4-60.
Which of the following turbine
parts convert(s) kinetic energy
to mechanical energy?
1.
Blade
2.
Nozzle
3.
Both 1 and 2 above
4.
Rotor
30