Procedures Flashcards
(125 cards)
0
Q
What are the three main parts that make up the construction of the standard screw driver?
A
The handle. The shank. And the end (blade).
1
Q
What is the purpose of screwdrivers?
A
Driving and removing screws.
2
Q
How much of the screw slot should be filled by the blade of a screw driver for proper fit?
A
At least 75%
3
Q
What screwdriver has flukes that are angled at 30 degrees and a Blunt end?
A
The Phillips head screwdriver.
4
Q
What percent of the Phillips screwhead cavity should be filled by a Phillips screwdriver?
A
100%
5
Q
What structural application are reed and prince screws generally used?
A
Airframe
6
Q
What types of pliers are manufactured with straight serrated jaws for gripping objects?
A
Combination jaw pliers
7
Q
What types of pliers are used only for cutting small material such as wire or cotter pins?
A
Diagonal pliers
8
Q
What type of wrench is referred to as a knuckle buster because of the consequences mechanics frequently suffer from wrong use?
A
Crescent adjustable wrenches
9
Q
What is the most common adjustable pipe wrench?
A
The stillson wrench
10
Q
When a stillson wrench is used, which jaw should provide the twisting force?
A
The fixed jaw
11
Q
What type of wrench should you use on a chromium played pipe?
A
A strap wrench
12
Q
What hammer is used by ABH?
A
The ball peen hammer
13
Q
How should the blade be installed in the frame of the hacksaw?
A
With the teeth facing away from the handle.
14
Q
Why should the blade of the hacksaw be installed with the teeth facing away from the handle?
A
Hacksaws cut on the push stroke only
15
Q
Three types of wrecking bars?
A
The small claw tool, crowbar, and large claw tool.
16
Q
What wrench is used with nuts in which notches have been cut into their outer edges?
A
The hook spanner
17
Q
What size bolts or rods are larger bolt cutters able to cut?
A
lots or rods up to one-half inch.
18
Q
What type of wrench is used when a definite force must be applied to a nut or bolt head?
A
A torque wrench
19
Q
Three most commonly used torque wrenches?
A
The micrometer-setting, dial-indicating, and deflecting-beam.
20
Q
What type of torque wrench emits an audible click when you reach your desired torque value?
A
The micrometer setting wrench
21
Q
What does the accuracy of torque measuring generally depend on?
A
How the threads are cut and the cleanliness of the threads
22
Q
What does a torque wrench measure?
A
The amount of turning or twisting force applied to a nut of bolt in inch or foot pounds.
23
Q
What should you do before plugging tools into a power source?
A
Be sure the proper voltage is supplied as specific for that particular tool and that the tool is properly grounded.
24
What is the difference between the 1/2 inch portable electric drill and the 1/4 inch electric drill?
The 1/2 inch electric drill gas slower RPM and more torque.
25
What jobs can be done with portable power sanders. Either electric or pneumatic?
Scaling rust, removing paint, and smoothing flight decks prior to laying nonskid materials.
26
What is the average size disk sander used in the navy?
7 or 9 inches
27
What authority determines the recommended air supply pressure when a pneumatic tool is being used?
The manufacturer.
28
When referring to a jitterbug, what tool are you Useing?
The rotary impact scaler
29
Why scaler is used to clean out corner not reachable by the rotary scaler?
The needle impact scaler
30
The model KDC deck cleaning machine is capable of removing nonskid at what rate?
250 to 500 square feet per hour.
31
What measuring tool is used when exact measurements are required?
The micrometer caliper (mike)
32
How accurate is the micrometer caliper when properly used?
Within .001 of an inch.
33
What is the simplest and most common if all measuring tools?
The steel rule
34
Why can't melt or wood folding rules be relied on for extremely accurate measurements?
Because a certain amount if play developed at the joints after they have been used.
35
What is a dynamometer?
An apparatus for measuring force or energy.
36
When using the windup type of tape, which was should you always turn the crank?
Clockwise
37
What should be done before portable electric tools are used for the first time after procurement?
They should be inspected and approved for shipboard use by the ships electrical safety officer.
38
What publication should you refer to for information on hearing conservation?
OPNAVINST 6260.2
39
What kind of portable electric tools should be used where flammable vapors, gases or exposed explosives are present?
Class 1, group D, or better
40
In what conditions should rubber gloves be worn when using portable electric tools?
Wet decks, bilge areas, working over the side, and In boats.
41
What kind of extension cords should be used aboard ships?
Only 3 wire extension cords that have 3 pronged plugs and 3 slot receptacles.
42
What is the minimum length of extension cords used aboard ship?
25 feet long, with no more than two cords connected together.
43
How long are repair locker and CV flight deck extension cords?
100 feet long
44
What parts of pneumatic tools should you pay particular attention to when inspecting then at regular intervals?
The on-off control valve trigger guard, hose connections, glide clips on hammers, and the chucks of readers and drills.
45
What is the purpose of the automatic excess flow shutoff valves which should be incorporated in the quick disconnect fittings in pneumatic tools?
It automatically shuts off the air at the air lines before changing grinding wheels, needles, chisels or other cutting or drilling bits.
46
What is a safety lock off device?
It is any operating control that requires positive action by the operator before the tools can be turned on.
47
When should you wear electrical grade insulating rubber gloves?
When working with portable electric tools or equipment in damp locations or when it is necessary to work on love electrical circuits or equipment.
48
What knot is used primarily to secure tag lines during aircraft hoisting operations?
The bowline
49
When are eye splices and back splices used?
In the fabrication of tag lines
50
What knots are used rose cute line to round stock or Clevis hooks?
The becket bend and half hitch
51
What are the components of a block?
A block consists of one or more sheaves (pulleys) fitted In a wood or metal frame (shell) supported b a hook or shackle inserted in the strap of the block.
52
What is a sheave?
It is a round, grooved wheel over which the rope runs.
53
What is the function of the straps on a block?
They are the framework that holds the block together and supports the pin on Which the sheaves rotates.
54
What is the swallow of a block?
It is the opening through which the rope passes.
55
What is the function of a block in a tackle assembly?
To change the direction of pull or provide mechanical advantage, or both.
56
What type of line should be used with fiber line blocks?
Good grade Manila or the equivalent.
57
What type of wire is used with wire rope blocks?
Plow steel or the equivalent.
58
What is a tackle?
An assembly of blocks and ropes used to gain a mechanical advantage in lifting or pulling.
59
What is meant by the term fall?
A rope, either Manila or wire, reeved through a pair of blocks to form a tackle.
60
What is the hauling part of a tackle?
It is the part of the fall leading from one of the blocks upon which the power is exerted.
61
What is the standing part of a tackle?
The end of the fall of the blocks
62
What is the movable or running block of the tackle?
It is the block attached to a fixed object or support
63
What is the mechanical advantage of a tackle?
It is the term applied to the relationship between the load being lifted and the power required to lift that load.
64
What is the easiest way to determine the mechanical advantage of a tackle?
By counting the number of parts of the falls at the movable or running block.
65
What would be the mechanic advantage of a gun tackle?
2
66
What happens to the mechanical advantage when any tackle is inverted?
A mechanical advantage of 1 is always gained because the number if parts at the movable block is increased.
67
Three common types of tackle?
The gun tackle, single luff tackle, and twofold purchase.
68
What combination makes up the gun tackle?
Two single sheave blocks
69
What is the mechanical advantage of a twofold purchase?
4
70
What would be the mech. Adv. of a twofold purchase if it were inverted?
5
71
What are the natural fibers used by the navy in making lines?
Abaca, agave, sisal, hemp, jute, and cotton.
72
What are the components of a line in increasing order of size?
Fibers, yarns, and strands.
73
How should right-laid line be coiled down?
Right handed or clockwise
74
What is the difference between nylon line and natural fiber line?
Nylon lines will stretch under a load and recover to it's normal size when tension is removed
75
What is the critical point when stretching nylon line?
Stretch of 40% of it's length
76
At what point will nylon line part?
50% stretch
77
How is a cool of nylon rope opened?
It should be unreeled in the same manner as wire rope
78
Critical length to which a 200 foot nylon line can be stretched?
280 feet
79
What line is 6 inches in circumference and is used for towing or mooring?
A hawser
80
What size line is the largest line issued by the navy for general shipboard use?
A 10 inch line
81
What is small stuff?
It is line less than 1 3/4 inches in circumference
82
What is the largest small stuff?
24 thread, it has 3 strands, each contains 8 yarns
83
What is marline?
It is 2 strand, left laid stuff, roughly made up, and tarred a dark brown.
84
What is seizing stuff?
It is small stuff laid up right-handed by machine
85
How is the size of small stuff designated?
By number of yarns it contains multiplied by the number of strands
86
What is the function of stabilizing lines?
They are intended for attachment between the aircraft and a crane to prevent oscillations while the load is suspended and in transit from the salvage site.
87
What are tag lines?
They are hand held stabilizing lines
88
What is the function of securing lines?
Securing lines are used to secure equipment such as an aircraft to a dolly to the flight deck during the jettison operations.
89
What are tending lines?
Tending lines are primarily used for personal safety. They are used when a crew member is operating in an area requiring the use of a harness.
90
How should a line be stowed when it's wet?
Laid on gratings in long fakes.
91
The signs of line deterioration sure to age or exposure?
Gradual change in color of inner parts of strands
92
Signs of line deterioration due to misuse or abuse?
Bristling ends of broken or dislodged yarns
93
What condition indicates that a line has deteriorated as a result if overstrain?
Bristles and shows decrease in diameter
94
How does a 6 x 37 wire rope differ from a 6 x 19 wire rope?
The 6 x 37 has more wires in each strand
95
Minimum tensile strength the navy specifies for wires in cranes, cargo gear, towing gear, ext. ?
220,000 pounds per square inch
96
Steel used most often in navy?
Plow steel
97
What is preformed wire?
Special purpose wire where each strand is shaped so that it lies in with the others the way a strand does in line
98
Difference between nonpreformed wire and preformed wire?
Preformed is more flexible, it lasts longer and is more expensive. Nonpreformed is stiffer and it's strands have a strong tendency to fly apart if not kept tightly whipped or seized
99
How does spring lay wire compare with all-steel wire of corresponding size?
It is weaker but more flexible
100
What lubricant is recommended for use on wire rope used for exposed running rigging?
Graphite grease.
101
Why should you always wear gloves when handling wire rope?
Protect hands from fishhooks
102
Best way to uncoil new coil of wire rope?
Unwind it by rotating the entire coil
103
Formula for breaking strength of Manila line?
BS=c2x900 pounds
104
Formula for breaking strength of nylon?
BS = C2 x 2400 pounds
105
Formula for breaking strength of wire rope?
BS = C2 x 8000 pounds
106
How do you find circumference of a line when only diameter is known?
Multiplying the diameter by 3
107
How do you compute the safe working load of a rope?
Find breaking strength and divide by one of the safety factors based on the ropes condition
108
What would be the safe working load formula for a new piece of 2 inch circumference Manila line?
SW = BS/4
109
What is safe working load of new wire rope 4 inches in circumference?
(SW = BS/4) = (SW = C2 x 8000 pounds) = (SW = 16 x 8000 pounds) = (SW = 128,000 pounds)
110
How does corrosion endanger equipment?
By reducing it's strength and changing the mechanical characteristics of the metals used in it's construction
111
What factors will determine what form the corrosion of a metal surface will take?
The corrosion-producing agents present, the atmospheric conditions and the metal involved
112
What combination of elements produces the main source of corrosion?
Water and water vapor containing salt combined with oxygen In the atmosphere.
113
Three types of corrosion?
Surface, galvanic, and intergranular corrosion
114
Common example of surface corrosion?
Iron rust
115
What form does corrosion take on I painted aluminum alloy?
White or grey powdery deposits on the metal surface
116
How is corrosion recognized on painted aluminum alloy ?
Paint or playing appears to lift off the surface. Blistering appearance and or discoloration.
117
How can you recognize corrosion on magnesium alloys?
Magnesium corrosion products are white and quite large compared to the size of the base metal being corroded. The deposits have a tendency to raise slightly and the corrosion spreads fast.
118
What type of corrosion results when two different metals are connected and exposed to salt water?
Galvanic
119
What type of corrosion is not visible on the surface of the metal?
Intergranular
120
What two types of corrosion is the ABH Mainly concerned?
Galvanic and surface
121
First step to be taken in getting rid of corrosion that is discovered on the painted surface of a structure?
Remove paint from affected area
122
What is the purpose of a corrosion correction treatment?
It involves the neutralization of any residual materials that may remain in puts and crevices and restoration of permanent protective coatings and paint finishes.
123
What is the most practical method of controlling metal corrosion?
Consistent preventive maintenance
124
What are the important factors that should be considered before choosing a cleaning agent for metal surfaces?
The type and surfaces to be cleaned such as painted or untainted surfaces and whether they are exterior or interior parts.
