500 Best Concrete Technology- MCQ
Q161). Weight batching is done by
a).Spring dial scale
b).Platform weighing machine
c).Portable weigh batchers
d).All of these
Correct Answer:
All of these
Explanation:
Q162). When the batching of material is done by weight
a).The bucket in which the material is to be weighed should be cleaned thoroughly
b).The weighing machine should be levelled before placing the material
c).The chart should be prepared indicating the weight of each material used for different strengths of concrete
d).All of the above
Correct Answer:
All of the above
Explanation:
Q163). The measuring 50 litres of aggregate, the inner dimensions of a farma should be
a).25 cm x 25 cm x 40 cm
b).29 cm x 29 cm x 48 cm
c).30 cm x 30 cm x 50 cm
d).31 cm x 31 cm x 52 cm
Correct Answer:
31 cm x 31 cm x 52 cm
Explanation:
Q164). The mixer, which produces a steady stream of concrete as long as it is in operation, is known as
a).Non tilting batch mixer
b).Tilting type batch mixer
c).Continuous mixer
d).None of these
Correct Answer:
Continuous mixer
Explanation:
Q165). The process of mixing, transporting, placing and compacting the cement concrete should not take more than
a).30 minutes
b).60 minutes
c).90 minutes
d).120 minutes
Correct Answer:
30 minutes
Explanation:
Q166). For continuous transportation of concrete, the method used is
a).Transport of concrete by pans
b).Transport of concrete by wheel barrows
c).Transport of concrete by belt concrete conveyors
d).Transport of concrete by pumps
Correct Answer:
Transport of concrete by belt concrete conveyors
Explanation:
Q167). For concreting of tunnel lining, the concrete is transported by
a).Pumps
b).Pans
c).Wheel barrows
d).Containers
Correct Answer:
Pumps
Explanation:
Q168). The concrete can be lifted by pumps through a maximum vertical distance of
a).10 m
b).20 m
c).30 m
d).50 m
Correct Answer:
50 m
Explanation: