21.
To hold the adjoining ends of rails in correct position, the rail fastenings to be used are
A
fish plates
B
spikes
C
bearing plates
D
anchors
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To hold the adjoining ends of rails in correct position, the rail fastenings to be used are
fish plates
spikes
bearing plates
anchors
The yard used for cleaning, repairing, servicing, watering, etc., is known as
marshalling yard
locomotive yard
none of the above
goods yard
The yard for reception, sorting and reforming of goods trains is known as
marshalling yard
locomotive yard
all of the above
goods yard
The tolerance on cross levels under loaded condition is
8 mm
10 mm
12 mm
6 mm
The system in which position of trains, and signals are displayed and controlled is known as
automatic block system
centralised traffic control system
automatic train control system
absolute block system
The stations which do not have any signal are known as
B-class stations
crossing stations
terminal stations
A-class stations
The stations which are provided to facilitate overtaking of trains are known as
way-side stations
flag stations
all the above
crossing stations
The station where traffic flow is in 3 or more directions is known as
flag station
terminal station
junction
crossing station
The station consisting of a block hut only and having home and warner signals is classified as
B-class station
C-class station
D-class station
A-class station
The specified throw of switch on broad gauge is
89 mm
95 mm
104 mm
110 mm
The spacing of sleepers is kept
closer near the joints
same throughout
closer at the middle of rails
none of these
The sleeper which has excellent ability to absorb shock is
wooden sleeper
steel sleeper
cast iron sleeper
concrete sleeper
The sleeper that needs the least maintenance is
wooden sleeper
steel sleeper
cast iron sleeper
concrete sleeper
The sleeper in the form of two bowls placed under each rail and connected by a tie bar is known as
box sleeper
pot sleeper
plate sleeper
none of the above
The size of broken stone ballast used for metal sleepers with rounded edges is
25 mm
32 mm
40 mm
50 mm
The signals in the form of circular discs with red bands on while backgrounds are
stop signals
warner signals
shunting signals
starter signals
The shape of vertical curve used by Indian Railways is
circular
parabolic
catenery
lemniscate
The rail section, nowadays, used in India is
bull headed
double headed
flat footed
I-section
The rail section first designed in India was
full headed
double headed
flot footed
I-section
The purpose of providing ballast below sleepers is to
transfer the load over wider area
absorb the shocks
improve drainage
all the above