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WorksheetsOCS Final Assessment Dhaka Metro Client
Total questions: 20
Worksheet time: 7mins
The minimum working clearance in 1500V DC OCS is __________.
2M
1M
3M
4M
1500V DC Live metal to earth static clearance is ___________.
150 mm
200 mm
100 mm
250 mm
Which type of Cantilever?
Push off
Pull off
Overlap Center
Overlap Inter
Insulators used in DMRT project is made up of
Porcelain
Composite
Glass
None of these
Identify the dimensions.
L1, L2, L3
L3, L4, L5
H, M, L
L1, L4, L5
What is the spacing distance of Hangers in throughout the span.
9 M
Less than 5M
Less than 10 M
Less than 9 M
Cut in insulator is required at Section insulator and IOL locations
False
True
In DMRT project Pulley type balancer mechanical ratio is
1 : 3
1 : 4
1 : 5
1 : 2
What type of spring tension balancer is used for OCS contact wire.
NS 400 -2
NS 450 -2
NS 250 - 2
NS 150 -2
Cross section of Feeder/Messenger wire in Feeder Messenger System (FMS) is
350 Sq.mm
250 Sq.mm
356 Sq.mm
256 Sq.mm
In depot the OCS Contact wire in Simple Catenary System size is
170 Sq.mm
110 Sq.mm
None of these
150 Sq.mm
Size of the ‘G’ jumper in main line at DMRT OCS project is
210 Sq.mm
105 Sq.mm
356 Sq.mm
110 Sq.mm
Encumbrance at support of OCS should be ________.
500 mm
1000 mm
1500 mm
2000 mm
Kinks or twists of contact wire shall be accepted.
False
True
What type of Disconnector switch is used in DMRT projects.
Single Pole Motorized
Double Pole Manual
Single Pole Manual
All the above
Wire separation provided for IOL is
150 mm
250 mm
450 mm
400 mm
Find the wrong statement.
IOL air clearance is 400 mm
Turnout OCS is above 5cm from mainline
4 span overlaps adopted in DMRT
‘G’ jumper is provided at IOL
RTU stands for _________.
Remote Transmission Unit
Regional Transmission Unit
Remote Terminal Unit
Railway Terminal unit
LBS stands for -----------.
Level Break Switch
Low Break Switch
Load Break Switch
Load Disconnector Switch
The stagger of OCS contact wire should not exceed _________.
500 mm
100 mm
250 mm
350 mm
