Unit 1/3/4

Question 1

In building the Egyptian pyramids, blocks of stones weighing about 2-1/2 tons were moved upward using a(n) ___________.

Answer 1

Inclined plane

Question 2

The giant stone slabs of Stongehenge were brought to an upright position using a series of ________ & fulcrums.

Answer 2

Levers

Question 3

What device did Polynesian workers use to erect 50-ton stone monoliths on Easter Island?

Answer 3

Wedge

Question 4

A jack handle is an example of a(n) __________.

Answer 4

Lever

Question 5

The most primary of machine principles used in rigging operations is the _________.

Answer 5

Wheel

Question 6

Blocks, when reeved, become a _________, which by definition is a device by which forces may be advantageously applied to do work.

Answer 6

Machine

Question 7

Blocks, when reeved, work like a machine, yet are not 100% efficient because of ________.

Answer 7

Friction

Question 8

If the lead line enters the standing block first, is it included in determining the number of parts of line?

Answer 8

No

Question 9

The increase in load-carrying ability is accompanied by a corresponding decrease in ___________.

Answer 9

Speed of travel

Question 10

Wire rope consists of many individual wires laid into a number of strands which are, in turn, laid around a ____________.

Answer 10

Center core

Question 11

The distance in which a strand makes a revolution around the rope is called _________.

Answer 11

Lay length

Question 12

Fatigue is caused by the constant _________ of the rope over sheaves and around drums.

Answer 12

Bending

Question 13

Abrasion is caused by _______.

Answer 13

Friction

Question 14

What is the minimum acceptable safety factor for rigging ropes?

Answer 14

5

Question 15

What is the single most important operational check to be made on hoisting and rigging equipment?

Answer 15

Rope and rigging inspection

Question 16

Shock loading may cause a rope to ___________.

Answer 16

Overstress

Question 17

What is the main object of external lubrication?

Answer 17

Filling the gaps between the strands and rope

Question 18

Spliced eyes must incorporate ____________ to maintain rope strength and reduce wear.

Answer 18

Rope thimbles

Question 19

What is the most common method used to make an eye?

Answer 19

A cable clip

Question 20

When making a cable clip connection, which clamp offers the greatest efficiency?

Answer 20

Long, double base clamp

Question 21

True or false: It is a good practice to give rope a certain length of service, then replace the rope regardless of its condition.

Answer 21

True

Question 22

True or false: If there is any evidence of a wire break in one lay, the rope should be replaced.

Answer 22

False

Question 23

True or false: Corrosion is more dangerous than wear.

Answer 23

True

Question 24

Should you ever use a clip to directly connect two straight lengths of rope?

Answer 24

No

Question 25

These two rope conditions decrease the rope's load capacity by 50%.

Answer 25

Knots and bends

Question 26

A hitch reduces a rope's load capacity by what percentage?

Answer 26

0.25

Question 27

10:1 is the safety ratio of what equipment?

Answer 27

Lifelines

Question 28

Always keep tag lines ___.

Answer 28

Dry

Question 29

This is the only natural rope acceptable for use in rigging.

Answer 29

#1 grade manila rope

Question 30

What is the #1 killer of riggers?

Answer 30

Electrocution

Question 31

What are the measurements of 6 x 19 x 1/2 x 10' wire rope?

Answer 31

6 strands containing 19 wires with a diameter of 1/2" and a length of 10 feet

Question 32

In what configuration does the capacity of a sling equal its rated capacity?

Answer 32

Vertical

Question 33

This configuration doubles the capacity of a sling:

Answer 33

Basket

Question 34

Choking reduces the capacity of a sling by this percentage:

Answer 34

0.25

Question 35

Name the 3 types of wire rope core:

Answer 35

Fiber Core (FC), Stainless Steel (SS), and Independent Wire Rope Core (IWRC)

Question 36

This is distance it takes for 1 strand to make a full revolution around the rope axis

Answer 36

Lay length

Question 37

If there are 3 broken wires in one strand in one rope lay, you must take this kind of rope out of service.

Answer 37

Running rope

Question 38

If there are 5 broken wires in one strand in one rope lay, you must take this kind of rope out of service.

Answer 38

Standing rope

Question 39

Running rope must be taken out of service if there are this many randomly broken wires found within one rope lay:

Answer 39

6

Question 40

Standing rope must be taken out of service if there are this many randomly broken wires in one rope lay:

Answer 40

10

Question 41

Who can destroy broken equipment?

Answer 41

The competent person

Question 42

How often should rigging equipment be inspected?

Answer 42

Daily, before use

Question 43

Sudden release of tension cause this condition in wire rope:

Answer 43

Bird caging

Question 44

You need these 3 components when creating an eye in a wire rope:

Answer 44

3 rope clamps, a thimble, a torque wrench

Question 45

A spliced eye without a thimble can reduce the efficiency of the connection by as much as this percentage:

Answer 45

10%

Question 46

Torque clamps to these specifcations:

Answer 46

Manufacturer's specifications

Question 47

What is the minimum distance between fist grimps/clamps?

Answer 47

2 inches