Related Questions

Hollow shafts can be made as strong as solid shafts by making the twisting moments of both the shafts same. Shafts made by __________ have residual stresses.
A Forging
B Cold rolling
C Hot rolling
D Casting
Sewer ventilating columns are generally placed at
A Distances 150 m to 300 m
B Upper ends of branch sewers
C Every change in the size of sewers
D All the above
If the flame of a miner's safety lamp in the upper layers of the sewer forms an explosive, the sewer certainly contains
A Hydrogen sulphide
B Carbon dioxide
C Methane
D Oxygen
It is required to connect two parallel shafts, the distance between whose axes is small and variable. The shafts are coupled by
A Universal joint
B Knuckle joint
C Oldham's coupling
D Flexible coupling
Drop manholes at the junctions of sewer lines, are provided if
A Invert level of a branch sewer is more than 60 cm that of the main sewer
B Sewer line runs along a main road
C Ordinary manhole cannot be built
D Two sewer lines intersect
The trap which is provided to disconnect the house drain from the street sewer is called
A Master trap
B Intercepting trap
C Interception manhole
D All the above
Sewer manholes are generally provided at
A The change of gradient
B The change of direction
C The junctions of sewers
D All of these
The means of access for inspection and cleaning of sewer line is known as
A Inlet
B Manhole
C Drop manhole
D Catch basin
Inter-distance between ventilation columns in a sewer line is kept
A 25 to 50 m
B 50 m to 100 m
C 100 m to 150 m
D 150 m to 300 m
The arrangement made for passing the sewer line below an obstruction below the hydraulic gradient lines called
A Inverted syphon
B Depressed sewer
C Sag pipe
D all of these

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