রেলওয়ে ইঞ্জিনিয়ারিং

• ০০। 30 m long rails are used in
• ক) India
• খ) Pakistan
• গ) Russia
• ঘ) U.S.A.
• ঙ) U.K.

• ০১। A CST-9 sleeper consists of
• ক) two inverted triangular pots on either side of rail seat
• খ) a central plate with a projected key and box on the top of plate
• গ) a tie bar and 4 cotters to connect two cast iron plates
• ঘ) a single two way key provided on the gauge side to hold the rail to sleeper
• ঙ) all the above.

• ০২। A kink is made in stock rails, ahead of the toe of switch at a distance of
• ক) 10 cm
• খ) 15 cm
• গ) 20 cm
• ঘ) 30 cm

• ০৩। A mono-block sleeper has
• ক) square section
• খ) rectangular section
• গ) trapezoidal section
• ঘ) semi-circular section
• ঙ) none of these.

• ০৪। A scissors cross over consists of one diamond and
• ক) one turn out
• খ) two turn outs
• গ) three turn outs
• ঘ) four turn outs
• ঙ) no turn out.

• ০৫। A scissors cross-over consists of
• ক) two pairs of points, four acute angle crossings and two obtuse angle crossings
• খ) four pairs of points, four acute angle crossings and four obtuse angle crossings
• গ) four pairs of points, six acute angle crossings and two obtuse angle crossings
• ঘ) two pairs of points, six acute angle crossings and four obtuse angle crossings.

• ০৬। A triangle of railway consists of
• ক) three turn outs
• খ) one turn out and two diamonds
• গ) two turn outs and one split
• ঘ) one turn out, one split and one diamond.

• ০৭। A triangle used for turning the face of locomotives, consists of
• ক) three turn outs
• খ) one turn out and two splits
• গ) two turn outs and one split
• ঘ) three splits.

• ০৮। A turn-in-curve is defined as
• ক) a curve introduced between two straights
• খ) a reverse curve
• গ) a reverse curve introduced in continuity of a turn out
• ঘ) a spiral transition curve.

• ০৯। A welded rail joint is generally
• ক) supported on a sleeper
• খ) supported on a metal plate
• গ) suspended
• ঘ) none of these.

• ১০। A wing rail is renewed or reconditioned if its maximum vertical wear is
• ক) 9.5 m
• খ) 7.5 m
• গ) 5.5 m
• ঘ) 5.0 m

• ১১। According to Railway Board, no diamond crossing should be flatter than
• ক) 1 in 6
• খ) 1 in
• গ) 1 in 12
• ঘ) 1 in 16

• ১২। Advantage of automatic signalling, is:
• ক) increased safety
• খ) reduction in delays
• গ) increase in track capacity
• ঘ) all the above.

• ১৩। An extra 7.5 cm ballast width is not provided on outer side on a curve, if its degree is
• ক) 6°
• খ) 5°
• গ) 4°
• ঘ) 3°
• ঙ) 2°

• ১৪। Anti-creep anchors are fixed to rails by
• ক) wedging
• খ) spring grip
• গ) clamping
• ঘ) all the above.

• ১৫। Arrangement made to divert the trains from one track to another, is known as
• ক) railway point
• খ) railway crossing
• গ) turnout
• ঘ) railway junction
• ঙ) none of these.

• ১৬। At a rail joint, the ends of adjoining rails, are connected with a pair of fish plates and
• ক) 2 fish bolts
• খ) 4 fish bolts
• গ) 6 fish bolts
• ঘ) 8 fish bolts

• ১৭। Ballast packed below and around the sleepers to transfer the load from sleepers to formation, generally consists of
• ক) broken stones
• খ) gravels
• গ) moorum
• ঘ) all the above.

• ১৮। Bearing plates are used to fix
• ক) flat footed rails to the wooden sleepers
• খ) double headed rails to the wooden sleepers
• গ) bull headed rails to the wooden sleepers
• ঘ) flat footed rails to the cast iron sleepers
• ঙ) none of these.

• ১৯। Bending of rail ends due to loose packing under a joint and loose fish Bolts, is known
• ক) buckling
• খ) hogging
• গ) creeping
• ঘ) none of these.