500 Best Highway Engineering MCQ
Q145). Longitudinal joints in concrete pavements
a).Divide the pavement into lanes
b).Take care of the unequal settlement of the sub grade
c).Help in laying out concrete in convenient widths
d).All of the above
Correct Answer:
All of the above
Explanation:
Q146). The longitudinal joint in concrete pavements, as recommended by IRC, is of
a).Tongue and groove type
b).Butt type
c).Weakened plane type
d).Hinged type
Correct Answer:
Butt type
Explanation:
Q147). Tie bars in longitudinal joints in concrete pavements
a).Ensure firm contact between slab faces
b).Prevent abutting slabs from separating along the longitudinal joint
c).Act as load transfer devices
d).All of the above
Correct Answer:
All of the above
Explanation:
Q148). The transverse joint may be a
a).Expansion joint
b).Contraction joint
c).Warping joint
d).All of these
Correct Answer:
All of these
Explanation:
Q149). To prevent the development of excessive compressive stresses in the concrete pavements as a result of expansion caused by increase in temperature, the type of transverse joint provided is
a).Constructed joint
b).Contraction joint
c).Expansion joint
d).All of these
Correct Answer:
Expansion joint
Explanation:
Q150). The maximum spacing of contraction joints in unreinforced concrete slavs for a slab thickness of 20 cm is
a).4.5 m
b).10 m
c).15 m
d).20 m
Correct Answer:
4.5 m
Explanation:
Q151). The dowel bars are used in rigid pavements for
a).Resisting tensile stresses
b).Resisting bending stresses
c).Resisting shear stresses
d).Transferring load from one portion to another
Correct Answer:
Transferring load from one portion to another
Explanation:
Q152). According to IRC recommendations, the width of transverse expansion joint should be ………. Extending to full length of slab
a).10 mm
b).20 mm
c).30 mm
d).40 mm
Correct Answer:
20 mm
Explanation: