The accepted speed of the moving stair is mm/second.
A450 mm
B300 mm
C200 mm
D150 mm
No.1 PSC Learning App
★
★
★
★
★
Related Questions:
The longest of the chain lines, used in making a survey is
For the irrigation of crops the base period B, duty d and Δ are related to as
If a 20 m chain gets displaced from correct alignment by a perpendicular distance d meter, then the error is given by
The tendency of a material to fracture without appreciable deformation is called
The property of a soil which permits flow of water through interconnected voids is called