Section A
CONFIDENTIAL
EFV 1072
Pneumatic And
Electropneumatic Tech.
Jan Jun 2011CONFIDENTIAL
EFV 1072
INSTITUT KEMAHIRAN MARASUNGAI PETANIKEDAH
PRACTICAL TEST 1JAN JUN 2011 SESSION
SUBJECT:EFV 1072 PNEUMATIC & ELECTROPNEUMATIC
TECHNOLOGY (PRACTICAL)DATE
:MAC 2010DURATION:3 HOURS
COURSE:SKEIDO NOT OPEN THIS QUESTION BOOKLET UNTIL YOU TOLD TO
DO SOInstructions:
1. This question booklet consists of Two (2) tasks. Answer both
tasks.2. Read the instruction carefully before you doing the
practical.
3. Write your answer at answer sheet.
4. Inform the instructor when you are finishing the job.
Prepared by:
Checked by:
..
..
(PN.ROSNANI ALI)
(EN. AZHARI BIN AHMAD)
This booklet consists 6 printed pages including this page.TEST
1
COURSESKEITIME
TITLE
FUNCTIONAL TEST ON PNEUMATIC SYSTEM.
SUBJECTEFV 1072 PNEUMATIC & ELECTROPNEUMATIC TECHNOLOGY
SEMESTER/SESSION1/ JAN JUN 2011
STUDENT NAME
TASK 1 :
Figure 1
TOOLS/EQUIPMENT/MATERIALSNO
ITEMS
QUANTITY
1
Double acting cylinder
1
2
5/2 way double solenoid valve1
3
3/2 way push button spring return valve243/2 way roller lever
spring return valve
1
5One way flow control valve1
6Quick exhaust valve17Two pressure valve
1
8Miscellaneous :
Air tube
As required
PROCEDURE
1. Construct the circuit in figure 1 on workstation.
2. Connect the air tubing and cable wire to the components
according to the circuit diagram.
3. Observe the movement double acting cylinder when the push
button is press according to the table 1.4. Describe the cylinder
movement and draw the displacement step diagram.5. Show the circuit
to the examiner to confirm the operation.
TASK 2 :PROCEDURE:1. Read the problem description given
below.
2. List the appropriate components used.
3. Draw the pneumatic circuit diagram.
Problem description
With the help of the vertical switching point, soft cool
(lignite) briquettes are to be fed to an upper or lower conveyor,
according to selection.
The destination of the swiveling slide (upper or lower) is
decided by means of a valve with selector switch. The upper motion
of the double acting cylinder (1A) is take place in t1 = 3s; the
downward motion in t2 = 2.5s. In the initial position, the cylinder
assumes the retracted end position.
Task 1:1. Table 1
SW1
SW2
OUTPUT
CYLINDER MOTION
OFF
OFF
OFF
ON
ON
OFF
ON
ON
2. Describe the cylinder movement
3. Draw the displacement-step diagram
Task :
1. Components list:
_____________________________________
_____________________________________
_____________________________________
_____________________________________
_____________________________________
_____________________________________
_____________________________________
_____________________________________
2. Pneumatic circuit diagram.
SW1
SW2
LS
LS
LS
LS
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