For the purpose of track maintenance, the number of turn out equivalent to one track km are
A. 1
B. 2
C. 5
D. 10
The formation width for a railway track depends on the
i) type of gauge
ii) number of tracks to be laid side by side
iii) slope of sides of embankment or cutting
The correct answer is
A. only (i)
B. both (i) and (ii)
C. both (i) and (iii)
D. (i), (ii) and (iii)
Heel divergence is
A. Always less than flange-way clearance
B. Equal to flange-way clearance
C. Always greater than flange-way clearance
D. Sometimes greater than flange-way clearance
Which one of the following rail failures is caused by loose fish bolts at expansion joints?
A. crushed head
B. angular break
C. split head
D. transverse fissures
The desirable rate of change of cant deficiency in case of Metre Gauge is
A. 20 mm/sec
B. 35 mm/sec
C. 55 mm/sec
D. 65 mm/sec
The height of the center of arm of a semaphore signal above the ground is:
A. 5.5 m
B. 6.5 m
C. 7.5 m
D. 8.5 m
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)
Ordinary rails are made of
A. mild steel
B. cast iron
C. wrought iron
D. High carbon steel
Metal sleepers are superior to wooden sleepers with respect to:
A. cost
B. life
C. track circuiting
D. fastening
If the depth of neutral axis for a singly reinforced rectangular section is represented by kd in working stress design, then the value of k for balanced section:
A. depends on as, only
B. depends on ACbC only
C. depends on both crst and acbc
D. is independent of both
The percentage of reinforcement in case of slabs, when high strength deformed bars are used is not less than
A. 0.15
B. 0.12
C. 0.30
D. 1.00
The effect of creep on modular ratio is:
A. To decrease it
B. To increase it
C. Either to decrease or to increase it
D. To keep it unchanged
The minimum cover to the ties or spirals should not be less than:'
A. 15 mm
B. 20 mm
C. 25 mm
D. 50mm
Ultimate strength of cold drawn high steel wires:
A. Increases with increase in diameter of bar
B. Decreases with increase in diameter of bar
C. Does not depend on diameter of bar
D. None of the above
For a slab supported on its four edges with corners held down and loaded uniformly, the Marcus correction factor to the moments obtained by Grashoff Rankine’s theory:
A. Is always less than 1
B. Is always greater than 1
C. Can be more than 1
D. Can be less than 1
A T-shaped retaining wall mainly consists of:
A. One cantilever
B. Two cantilevers
C. Three cantilevers
D. Four cantilevers
The recommended value of modular ratio for reinforced brick work is:
A. 18
B. 30
C. 40
D. 58
A higher modular ratio shows:
A. Higher compressive strength of concrete
B. Lower compressive strength of concrete
C. Higher tensile strength of steel
D. Lower tensile strength of steel
Modulus of rupture of concrete is a measure of
A. Flexural tensile strength
B. Direct tensile strength
C. Compressive strength
D. Split tensile strength
The effective and actual lengths of a cantilever are same if continuous at the support:
A. Unstrained against torsion at the support and free at the end
B. With partial restraint against torsion of the support and free at the end
C. Restrained against torsion at the support and free at the end
D. None of these
Principle of superposition is applicable when:
A. Deflections are linear functions of applied forces
B. Material obeys Hooke's law
C. The action of applied forces will be affected by small deformations of the structure
D. None of the above
Which of the following is not the displacement method?
A. Equilibrium method
B. Column analogy method
C. Moment distribution method
D. Kani's method
If b is the wheel track of a vehicle and h is the height of centre of gravity above road surface, then to avoid overturning and lateral skidding on a horizontal curve, the centrifugal ratio should always be:
A. Less than b2h and greater than co-efficient of lateral friction
B. Less than b2h and also less than co-efficient of lateral friction
C. Greater than b2h and less than co-efficient of lateral friction
D. Greater than b2h and also greater than coefficient of lateral friction
Highway facilities are designed for
A. annual average hourly volume
B. annual average daily traffic
C. thirtieth highest hourly volume
D. peak hourly volume of the year
With increase in speed of the traffic stream, the minimum spacing of vehicles
A. Increases
B. decreases
C. first decreases and then increases after reaching a minimum value at optimum speed
D. first increases and then decreases after reaching a maximum value at optimum speed
The absolute minimum radius of curve for safe operation for a speed of 110 kmph is:
A. 110 m
B. 220 m
C. 440 m
D. 577 m
The suitable surfacing material for a bridge deck slab is:
A. sheet asphalt
B. bituminous carpet
C. mastic asphalt
D. rolled asphalt
In highway construction, rolling starts from:
A. Sides and proceed to center
B. Center and proceed to sides
C. One side and proceed to other side
D. Any of the above
On a right angled road intersection with two way traffic, the total number of conflict points is:
A. 6
B. 11
C. 18
D. 24
The effect of grade on safe overtaking sight distance is:
A. to increase it on descending grades and to decrease it on ascending grades
B. to decrease it on descending grades and to increase it on ascending grades
C. to increase it on both descending and ascending grades
D. to decrease it on both descending and ascending grades
To calculate the minimum value of ruling radius of horizontal curves in plains, the design speed is given by:
A. 8 kmph
B. 12kmph
C. 16kmph
D. 20 kmph
The maximum allowable Los Angeles abrasion value for high quality surface course is:
A. 10%
B. 20 %
C. 30%
D. 45 %
Which of the following is indicated by a warning sign ?
A. level Crossing
B. no parking
C. end of speed limit
D. overtaking prohibited
Bar charts are suitable for:
A. Minor works
B. Major works
C. Large projects
D. All the Above
For a given size of bucket, the ideal output of a dragline will be least in:
A. Moist loam
B. Sand and gravel
C. Good common earth
D. Wet sticky clay
In the time-cost optimisation, using CPM method for network analysis, the crashing of the activities along the critical path is done starting with the activity having:
A. Longest duration
B. Highest cost slope
C. Least cost slope
D. Shortest duration
For which of the following materials, the output of power shovels for a fixed shovel size will be maximum:
A. Moist loam
B. Good common earth
C. Well blasted rock
D. Wet sticky clay
Crash project duration is obtained by summing the
A. Normal durations for all the activities
B. Crash durations for all activities
C. Crash durations for all the activities along the critical path obtained by taking into account the normal duration for all the activities
D. Crash durations for all the activities along the critical path obtained by taking into account the crash duration for all the activities
Rolling resistance of a wheel depends upon:
(i) Vehicle load
(ii) Grade
(iii) Ground conditions
A. Only (i) is correct
B. (i) and (ii) are correct
C. (i) and (iii) are correct
D. (ii) and (iii) are correct
Total float for any activity is defined as the difference between:
A. Its latest finish time and earliest start time for its successor activity
B. Its latest start time and earliest start time
C. Its latest start time and earliest finish time
D. Its earliest finish time and earliest start time for its successor activity
The time corresponding to minimum total project cost is
A. Crash time
B. Normal time
C. Optimistic time
D. Between normal time and crash time
If ‘H’ is the height of wall between centers of supports, then the effective height of wall where concrete floors have a bearing on wall irrespective of the direction of span will be:
A. 0.75 H
B. 0.85 H
C. 1.0 H
D. 1.5 H
If the eccentricity ratio is more than 124, then increase in the permissible stress in the design of wall subjected to eccentric loading as per code is:
A. 10%
B. 25%
C. 3313%
D. 50%
The bending stress in a wall or column subjected to effective vertical load need not be considered, if the eccentricity ratio is:
A. Less than or equal to 124
B. Less than or equal to 16
C. More than 124
D. Less than or equal to 112
For masonry built in 1 : 1 : 6 cement-lime-sand mix mortar or equivalent, the horizontal shear stress permissible on the area of a mortar bed joint is:
A. 0.15 MPa
B. 0.125 MPa
C. 0.1 MPa
D. 0.075 MPa
If ‘H’ is the height of wall between centers of supports, then the effective height of wall where concrete floors have a bearing on wall irrespective of the direction of span will be:
A. 0.75 H
B. 0.85 H
C. 1.0 H
D. 1.5 H
If the eccentricity ratio is more than 124, then increase in the permissible stress in the design of wall subjected to eccentric loading as per code is:
A. 10%
B. 25%
C. 3313%
D. 50%
The bending stress in a wall or column subjected to effective vertical load need not be considered, if the eccentricity ratio is:
A. Less than or equal to 124
B. Less than or equal to 16
C. More than 124
D. Less than or equal to 112
For masonry built in 1 : 1 : 6 cement-lime-sand mix mortar or equivalent, the horizontal shear stress permissible on the area of a mortar bed joint is:
A. 0.15 MPa
B. 0.125 MPa
C. 0.1 MPa
D. 0.075 MPa
Effects of shear force and axial force on plastic moment capacity of a structure are respectively to:
A. Increase and decrease
B. Increase and increase
C. Decrease and increase
D. Decrease and decrease
The slenderness effect of a wall is considered if the effective height of the wall exceeds the thickness:
A. 8 times
B. 10 times
C. 12 times
D. 16 times
If the main reinforcement of the slab is parallel to a T-beam, the transverse reinforcement at mid span of the slab is provided at least __ of main reinforcement:
A. 40%
B. 50%
C. 60%
D. 70%
The three moments equation is applicable only when:"
A. The beam is prismatic
B. There is no settlement of supports
C. There is no discontinuity such as hinges within the span
D. The spans are equal
