ট্রান্সপোর্টেশন ইঞ্জিনিয়ারিং MCQ
141. A track is laid over-
sleepers
rails
formation
ballast
142. The minimum depth of ballast for broad gauge tracks on Indian railways is-
200mm
300mm
250mm
350mm
143. The rail seat is given a slope of-
1 in 20
1 in 40
1 in 10
1 in 30
144. In coning of wheels, the wheels are given a slope of-
1 in 20
1 in 25
1 in 30
1 in 40
145. The gauge is widened on curves of -----4.5° curvature.
equal to
less than
more than
infinity
146. The main device used for interlocking is-
point lock
detector
treadle bar
all of these
147. Which of the following is a cast-iron sleeper?
box sleeper
pot sleeper
plate sleeper
all of these
148. The best wood for sleepers is-
sal
teak
deodar
chir
149. The largest dimension of a rail section is-
head width
height
foot width
all of these
150. Round spikes are not used for fixing --- rails on wooden sleepers.
flat footed
double headed
bull headed
all of these
151. To prevent the change in gauge and creep, the steel sleepers are fixed by clips, bolts and-
one key
two keys
three keys
four keys
152. The number of sleepers used per rail length on the track is known as-
sleeper strength
sleeper density
sleeper ratio
all of these
153. Creep is the----- movement of rails.
longitudinal
lateral
vertical
154. The track from which train diverts is known as-
turn-out
crossing track
main line
point
155. The mass of a rail chair is about-
10kg
22kg
15.6kg
30kg
156. কোন ধরনের রেলপথ সবচেয়ে চওড়া? [BPSC-22]
Narrow Gauge
Broad Gauge
Mitre Gause
Mix Gauge
ব্যাখ্যা: ব্যাখ্যা: রেলপথের চওড়াগুলো হলো-
১। ব্রড গেজ- ১৬৭৬ মিমি
২। মিটার গেজ- ১০০০ মিমি
৩। ন্যারো গেজ- ৭৬২ মিমি
157. কেন্দ্রাতিগ অনুপাত রেলসড়কে কত? [BBA-23]
১/৪
১/৮
১/৬
১/১০
ব্যাখ্যা: ব্যাখ্যাঃ রেলসড়কে কেন্দ্রাতিগ অনুপাত = 1/8
সড়কপথে কেন্দ্রাতিগ অনুপাত = 1/4
158. Superelevation on curves is provided by means of-
cant-board
spirit level
straight edge
all of these
159. To keep the railway yard dry, the ballast used is-
sand
coal ash
broken stone
both a and b
160. The width of top portion of a flat- footed rail is-
66.67mm
73.25mm
69.80mm
75.87mm