If you have steel wire ropes leading in the same direction with other ropes, which will take the most of the load? ___ .
A: Steel wire rope.
B: Manila.
C: Nylon.
D: Polypropylene rope.
A: Steel wire rope.
B: Manila.
C: Nylon.
D: Polypropylene rope.
A
举一反三
- 73. If you have steel wire ropes leading in the same direction with other ropes, which will take the most of the load?
- A steel wire with the diameter of d=1mm is wound around a winding drum with the diameter of 2m. Knowing that the allowable stress of the steel wire is [σ] =200MPa, E=200GPa, determine the maximum stress and the largest size of diameter of the steel wire.
- The wire ropes and blocks, or pulleys, on a ship are called（）. A: the apparatus B: equipment C: riggings D: fitting
- The wire ropes which_______ the car are fixed to a heavy counterweight. A: support B: hold C: install D: move
- Manila slings should not be used to load（）. A: cotton B: lumber C: steel D: tire
内容
- 0
We are one of the leading exporters___________ the export of building materials such as prepainted steel and galvanized steel which you will see at our site demonstration.
- 1
The player’s career is hanging by a_____ after this latest injury to his knee. A: string B: rope C: thread D: wire
- 2
The tackle that raises and lowers the boom is（）. A: the cargo fall B: The cargo hoisting wire rope C: the topping lift D: the cargo whi
- 3
When diesel powered trackless transportation equipment causes serious underground air pollution, Which of the following option can be considered?( ) A: Electricity B: Wire rope C: Winch D: Gasoline
- 4
What are the ropes for rock-climbing made of A: Elastic fabrics. B: Special belts. C: Some kind of special plastic. D: Nylon.