Top 250+ Solved Railway Bridge and Tunnel Engineering MCQ Questions Answer
Q. If the standard length of a B.G. crossing is 597 cm, the number of crossing, is
a. 1 in 8½
b. 1 in 12
c. 1 in 16
d. None of these
Q. Switch angle is the angle between
a. The gauge face of the stock rail and tongue rail
b. The outer face of the stock rail and tongue rail
c. The gauge face of the stock rail and outer face of the tongue rail
d. The outer face of the stock rail and the gauge face of the tongue rail
Q. On Broad Gauge main lines with maximum traffic loads, the rail section preferred to, is
a. 29.8 to 37.3 kg/m
b. 32.5 to 42.5 kg/cm
c. 44.7 to 56.8 kg/m
d. None of these
Q. The treadle bar is provided
a. In the middle of the track a little in front of the toes of the tongue rail
b. Near and parallel to inner side of one of the rails
c. At right angle to the rail
d. Near and parallel to inner side of both the rails
Q. Heel of crossing is the line joining
a. Ends of splice rail and point rail
b. Ends of lead rails butting the crossing
c. Ends of wing rails
d. Throat and actual nose of crossing
Q. The main advantage of a cement concrete sleeper, is:
a. Its heavy weight which improves the track modulus
b. Its capacity to maintain gauge
c. Its suitability for track circuiting
d. All the above
Q. Stock rails are
a. Parts of crossing
b. Fitted against check rails
c. Fitted against tongue rails
d. Laid between heel of switch and nose of crossing
Q. Continuity of electric current across welded rail joints, is maintained by
a. Welding ends of a wire to each rail
b. Placing an insulated plate underneath the rails
c. Placing insulation in expansion gaps
d. None of these
Q. Consider the following statements about concrete sleepers. 1. They improve the track modulus. 2. They have good scrap value. 3. They render transportation easy. 4. They maintain the gauge quite satisfactorily. Of these statements
a. 1 and 2 are correct
b. 2 and 3 are correct
c. 3 and 4 are correct
d. 1 and 4 are correct
Q. The arrangement of rails which permit trains to cross another track and also to divert to the other track, is called
a. Diamond crossing
b. Diamond crossing with single slip
c. Diamond crossing with double slip
d. Cross over
Q. On either side of the centre line of rails, a cant of 1 in 20 in the sleeper is provided for a distance of
a. 150 mm
b. 165 mm
c. 175 mm
d. 185 mm
Q. In a B.G. railway track, the specified ruling gradient is 1 in 250. The horizontal curve of3° on a gradient of 1 in 250 will have the permissible gradient of
a. 1 in 257
b. 1 in 357
c. 1 in 457
d. 1 in 512
Q. A CST-9 sleeper consists of
a. Two inverted triangular pots on either side of rail seat
b. A central plate with a projected key and box on the top of plate
c. A tie bar and 4 cotters to connect two cast iron plates
d. All the above
Q. Staggered rail joints are generally provided
a. On curves
b. On tangents
c. On bridges
d. In tunnels
Q. The following tests are conducted for rails: (i) Falling weight test (ii) Tensile test (iii) Hammer test The compulsory tests are
a. Only (i)
b. (i) and (ii)
c. (ii) and (iii)
d. (i) and (iii)