Cranes And Hoists

Question 1

What are the two basic types of cranes?

Answer 1

1. Hydraulic
2. Conventional

Question 2

What type of crane is this?

What unique qualities does it have?

Answer 2

• Industrial Crane
• Front and rear wheel steering (can crab walk)

Question 3

What type of crane is this?

Answer 3

Rough Terrain Crane

Question 4

What type of Crane is this?

Answer 4

Carrier-Mounted Telescopic Boom Crane

Question 5

What type of crane is this?

Answer 5

Carrier-Mounted Lattice Boom Crane

Question 6

What type of crane is this?

Answer 6

Crawler-Mounted Lattice Boom Crane

Question 7

What is Blocking?

Answer 7

Material that you place under the floats to increase the support area

Question 8

What are these called?

Answer 8

Outrigger Floats

Question 9

What must Outrigger Floats be used with?

Answer 9

Blocking

Question 10

What is a cranes boom subjected to if not leveled before lifting?

Answer 10

Side Loading

Question 11

What is a Stabilizer with regard to cranes?

Answer 11

A hinged or telescopicing leg that is lowered to the ground to support the truck or crane carrier.

Question 12

What is a outrigger?

Answer 12

A telescoping horizontal beam to which a vertical hydraulic cylinder with a pad (float) is attacked.

Question 13

What is an “On Rubber Crane”

Answer 13

A crane that remains on its tires.

Question 14

What is a Fulcrum?

Answer 14

The tipping axis of an object.

Question 15

What is Sweep Area?

Answer 15

The total area a cranes boom can swing over.

Question 16

Where is the most dangerous position of the boom when lifting?

Answer 16

Over one outrigger (over one corner)

Question 17

Who is more at risk when electrical power lines are contacted on a crane, the operator or workers nearby?

Answer 17

Workers nearby.

Question 18

Before working near power lines you should do what?

Answer 18

Inform the local power company and request the power turned off