The object of providing a point lock is None of these to detect any obstruction between and tongue rail to ensure that the point may not be operated while the train is on it to ensure that each switch is correctly set TRUE ANSWER : ? YOUR ANSWER : ?
Vertical curves are provided where algebraic difference between grades is equal to or less than 2 mm/m less than 4 mm/m more than 2 mm/m more than 4mm/m TRUE ANSWER : ? YOUR ANSWER : ?
Normally the limiting value of cant is (where G is the gauge.) G/12 G/10 G/8 G/15 TRUE ANSWER : ? YOUR ANSWER : ?
Stretcher bar is provided To permit lateral movement of the tongue rail To maintain the two tongue rails at the exact distance To ensure exact gauge at the toe of the switch as well as the nose of crossing To prevent any vertical movement between the wing rail and nose of crossing TRUE ANSWER : ? YOUR ANSWER : ?
A treadle bar is used for interlocking points and signal track maintenance setting marshalling yard signals setting points and crossings TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following factors govern the choice of the gauge ? i) volume and nature of traffic ii) speed of train iii) physical features of the country The correct answer is both (ii) and (iii) only (i) both (i) and (ii) (i), (ii) and (iii) TRUE ANSWER : ? YOUR ANSWER : ?
Largest percentage of material in the rail is in its foot head and foot both web head TRUE ANSWER : ? YOUR ANSWER : ?
Maximum value of ‘throw of switch’ for Broad Gauge track is 89 mm 95 mm 115 mm 100 mm TRUE ANSWER : ? YOUR ANSWER : ?
Largest dimension of a rail is its height Any of these head width foot width TRUE ANSWER : ? YOUR ANSWER : ?
Study the following statements regarding creep. i) Creep is greater on curves than on tangent railway track, ii) Creep in new rails is more than that in old rails, iii) Creep is more on steep gradients than on level track. The correct answer is (i), (ii) and (iii) only (i) (ii) and (iii) (i)and(ii) TRUE ANSWER : ? YOUR ANSWER : ?