2A656 CDC 2
.jpg "2A656 CDC 2 - Quiz")
Electrical & Enviornmental 5 Level Test
- 1.
Screwdrivers are sized by the length of the?
- A.
Blade
- B.
Shank
- C.
Handle
- D.
Ferrule
Correct Answer
B. Shank -
- 2.
When striking an object with a hammer, the hammer face should be?
- A.
Parallel to the work
- B.
Offset to the work
- C.
Slightly angled
- D.
Slightly open
Correct Answer
A. Parallel to the work -
- 3.
What kind of pliers are good for pulling cotter pins?
- A.
Snap rings
- B.
Vise grip
- C.
Long-nose
- D.
Diagonal cutting
Correct Answer
D. Diagonal cutting -
- 4.
One advantage of box-end wrenches is that they?
- A.
Are the fastest to use
- B.
Can be hammered on saftley
- C.
Are not likely to slip off the nut
- D.
Are easy to use on recessed bolts
Correct Answer
C. Are not likely to slip off the nut -
- 5.
Which wrench is usually the strongest, fastest, and safest to in a tool hit?
- A.
Socket
- B.
Box-end
- C.
Open-end
- D.
Adjustable
Correct Answer
A. Socket -
- 6.
When filing aluminum or lead, you should use?
- A.
Rasp
- B.
Scribe
- C.
Mill file
- D.
Triangular file
Correct Answer
A. Rasp -
- 7.
What type of gauge would you use to measure an actuating switch clearance?
- A.
Gap
- B.
Thread
- C.
Pressure
- D.
Thickness
Correct Answer
D. Thickness -
- 8.
The last verification date on a tourques wrench must not exceed?
- A.
60 workdays
- B.
30 workdays
- C.
60 calender-days
- D.
30 calender-days
Correct Answer
C. 60 calender-days -
- 9.
A precaution concerning tourque wrenches is to?
- A.
Never use an extension with a tourque wrench
- B.
Never use another wrench to secure a bolt before torquing
- C.
Never use a tourque wrench that has been dropped unless it has been verified
- D.
Always calculate the leverage advantage before using a tourque wrench above its rated compacity
Correct Answer
C. Never use a tourque wrench that has been dropped unless it has been verified -
- 10.
Before storing a tourque wrench you have used, you should?
- A.
Lubricate it with a light oil
- B.
Set it at its lowest setting
- C.
Check it for accuracy
- D.
Set it at zero setting
Correct Answer
B. Set it at its lowest setting -
- 11.
Tubing used in aircraft oxygen, fuel, lubrication, fire extinguishing, instruments, hydraulic, and vent lines is?
- A.
Stainless steel and teflon alloy
- B.
Stainless steel and copper tubing
- C.
Aluminum alloy and copper tubing
- D.
Aluminum alloy and stainless steel
Correct Answer
D. Aluminum alloy and stainless steel -
- 12.
A properly installed bolt has a minimum of how many threads protruding through the nut?
- A.
Four
- B.
Three
- C.
Two
- D.
One
Correct Answer
C. Two -
- 13.
When tourquing a bolt assembly, what is the force applied to overcome friction?
- A.
Torsion
- B.
Tension
- C.
Tensile
- D.
Shear
Correct Answer
A. Torsion -
- 14.
When installing a cotter pin, ensure the prong that bends over the bolt shank does not exceed the bolt nut?
- A.
Grip
- B.
Width
- C.
Length
- D.
Diameter
Correct Answer
D. Diameter -
- 15.
Wire insulation may consist of several layers of nonconducting material that provides?
- A.
Thermal protection and fluid resistance
- B.
A method of identification
- C.
Protection from freezing
- D.
Strength and flexibility
Correct Answer
A. Thermal protection and fluid resistance -
- 16.
Which technical order (TO) provides instructions for the Brady Wire Making System?
- A.
00-20-1
- B.
00-20-2
- C.
1-1A-8
- D.
1-1A-14
Correct Answer
D. 1-1A-14 -
- 17.
Wires and wire bundles should be supported by clamps or grommets at intervals of no more than?
- A.
15 inches
- B.
20 inches
- C.
24 inches
- D.
26 inches
Correct Answer
C. 24 inches -
- 18.
Which color code and corresponding wire sizes are valid for a preinsulated terminal?
- A.
Yellow- 12 and 10
- B.
Brown- 22 and 20
- C.
Blue- 20 and 18
- D.
Red- 16 and 14
Correct Answer
A. Yellow- 12 and 10 -
- 19.
The indent-type crimping tool should be used only on?
- A.
Preinsulated splices
- B.
Preinsulated terminals
- C.
Noinsulated terminals
- D.
Noninsulated terminal boards
Correct Answer
C. Noinsulated terminals -
- 20.
When joining copper and aluminum terminal lugs together on the same terminal board stud, separate them with?
- A.
A steel washer
- B.
A copper washer
- C.
A cadmium-plated washer
- D.
An aluminum-alloy washer
Correct Answer
C. A cadmium-plated washer -
- 21.
What do you use as junction points for circuits that are frequently disconnected?
- A.
Conneector plugs
- B.
Terminal boards
- C.
Shielded wires
- D.
Splices
Correct Answer
A. Conneector plugs -
- 22.
When heat is applied to thermofit material, which is used in compact wire bundles, it will shrink by at least?
- A.
One and a half times its original diameter
- B.
One-fourth its original diameter
- C.
One-half its original diameter
- D.
One time its original diameter
Correct Answer
C. One-half its original diameter -
- 23.
Never use cushioned clamps in any bonding or grounding connection, because the cushion acts as?
- A.
A conductor
- B.
An insulator
- C.
A semi conductor
- D.
An alternate path for current
Correct Answer
B. An insulator -
- 24.
After a bonding or grounding jumper is insulated, it should read no more than?
- A.
0.02 ohms
- B.
0.01 ohms
- C.
0.2 ohms
- D.
0.1 ohms
Correct Answer
D. 0.1 ohms -
- 25.
Oxide film is removed from the surface of metals durning the soldering process by the use of?
- A.
A bristle brush
- B.
The soldering flux
- C.
A soldering iron tip
- D.
An approved solvent
Correct Answer
B. The soldering flux -
- 26.
In order to clean a plated soldering tip, use?
- A.
A fine file while the tip is cold
- B.
A course file while the tip is hot
- C.
An abrasive cloth while the tip is hot
- D.
An abrasive cloth while the tip is cold
Correct Answer
D. An abrasive cloth while the tip is cold -
- 27.
Thermal shunts are used in soldering because they?
- A.
Make the part heat faster
- B.
Protect heat-sensitive components
- C.
Keep the lead and component at the same temperature
- D.
Give good holding action to the component being soldered
Correct Answer
B. Protect heat-sensitive components -
- 28.
You can best determine a soldered connection's quality by?
- A.
Reducing it slightly
- B.
Prying on it with a soldering aid
- C.
Giving it a thorough visual inspection
- D.
Pulling on it gently with your fingers
Correct Answer
C. Giving it a thorough visual inspection -
- 29.
Prior to soldering electronic equipment, ensure the equipment is?
- A.
Disconnected from the power source
- B.
Connected to the power source
- C.
Protected from voltage spikes
- D.
Properly grounded
Correct Answer
A. Disconnected from the power source -
- 30.
How should you test the heat of a soldering iron?
- A.
Submerge the tip in flux
- B.
Hold the tip near your face
- C.
Touch the tip to the solder, near your body
- D.
Touch the tip to the solder, away from your body
Correct Answer
D. Touch the tip to the solder, away from your body -
- 31.
How should you remove excess solder from the soldering iron tip?
- A.
Give the iron a quick flip
- B.
Wipe the iron on a damp sponge of rag
- C.
Gently tap the iron on a trash can edge
- D.
Let the iron cool and file away excess
Correct Answer
B. Wipe the iron on a damp sponge of rag -
- 32.
An acceptable tinned wire has?
- A.
No insulation clearance and wire strands covered with solder, but still visible
- B.
No insulation clearance and wire starands covered in solder, but not visible
- C.
An insulation clearance equal to the diameter of the wire and wire strands covered with solder, but still visible
- D.
An insulation clearance equal to the diameter of the wire and wire strands partially covered with solder, and still visible
Correct Answer
C. An insulation clearance equal to the diameter of the wire and wire strands covered with solder, but still visible -
- 33.
What do you have when you have a cold solder joint?
- A.
Low resistance to current
- B.
High resistance to current
- C.
An acceptable solder joint
- D.
A bright and shiney solder joint
Correct Answer
B. High resistance to current -
- 34.
During soldering, apply the proper amount of solder directly to the?
- A.
Iron tip
- B.
Component
- C.
Connection
- D.
Heat bridge
Correct Answer
C. Connection -
- 35.
Which choice best describes a good solder connection?
- A.
A dull grey appearance
- B.
No pits or holes and has a good concave fillet
- C.
No pits or holes and has a good convex fillet
- D.
Bright and shiny with a minimum of pits or holes
Correct Answer
B. No pits or holes and has a good concave fillet -
- 36.
When marking wire connections to turret terminals, wrap the wire around the terminal at least?
- A.
90 degrees
- B.
180 degrees
- C.
270 degrees
- D.
360 degrees
Correct Answer
B. 180 degrees -
- 37.
To connect wires or component leads to flat perforated terminals, the wrap must be?
- A.
45 degrees
- B.
60 degrees
- C.
90 degrees
- D.
180 degrees
Correct Answer
D. 180 degrees -
- 38.
What is the heaviest duty soldering iron you normally use in soldering a printed circuit board?
- A.
20 watts
- B.
27 watts
- C.
30 watts
- D.
35 watts
Correct Answer
B. 27 watts -
- 39.
You should clean the circuit board connection within how long after it has cooled?
- A.
30 minutes
- B.
60 minutes
- C.
90 minutes
- D.
120 minutes
Correct Answer
C. 90 minutes -
- 40.
Unclinched-lead terminations are of what type?
- A.
Special
- B.
Convex
- C.
Standard
- D.
Concave
Correct Answer
A. Special -
- 41.
How should a clinched-lead terminal lay in respect to the printed circuit pad?
- A.
90 degrees from the pad
- B.
180 degrees from the pad
- C.
Flat on the pad and in the direction of the printed circuit wiring pattern
- D.
Flat on the pad facing away from the direction of the circuit wiring pattern
Correct Answer
C. Flat on the pad and in the direction of the printed circuit wiring pattern -
- 42.
How should you hold a printed circuit board to desolder a component?
- A.
Flat
- B.
Vertically
- C.
Horizontally
- D.
45 degrees from vertical
Correct Answer
B. Vertically -
- 43.
To clean tinned, lead-plated circuit boards, use?
- A.
A medium-bristle brush and alcohol
- B.
A stiff-bristle brush and alcohol
- C.
An eraser and approved solvent
- D.
An approved solvent
Correct Answer
A. A medium-bristle brush and alcohol -
- 44.
When soldering a module-type package to a printed cicuit board, ensure the connection is soldered within?
- A.
3 seconds
- B.
5 seconds
- C.
7 seconds
- D.
10 seconds
Correct Answer
B. 5 seconds -
- 45.
You must repair a circuit board conductor if it has a nick that extends what part of its width?
- A.
10 percent
- B.
15 percent
- C.
20 percent
- D.
25 percent
Correct Answer
D. 25 percent -
- 46.
When repairing a damaged terminal on a circuit board, the replacement foil should overlap the connecting circuit conductor by at least?
- A.
1.250 inch
- B.
0.250 inch
- C.
0.125 inch
- D.
0.0125 inch
Correct Answer
C. 0.125 inch -
- 47.
How many British thermal units (BTUs) does it take to raise the temperature of 5 pounds of water 5 degrees F?
- A.
1
- B.
5
- C.
17
- D.
25
Correct Answer
D. 25 -
- 48.
A permanant magnet?
- A.
Loses its retentivity
- B.
Keeps its magnetism
- C.
Loses its permiablility
- D.
Keeps small amounts of reluctance
Correct Answer
B. Keeps its magnetism -
- 49.
The greater the current flow through an electromagnet, the?
- A.
Greater the retentivity
- B.
Lesser the field strength
- C.
Greater the field strength
- D.
Higher the core reluctance
Correct Answer
C. Greater the field strength -
- 50.
The intensity of electrical current flow is measured in?
- A.
Volts
- B.
Cycles
- C.
Amperes
- D.
Coulombs
Correct Answer
C. Amperes -
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Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.
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Current Version
-
Feb 15, 2013Quiz Edited by
ProProfs Editorial Team -
Apr 13, 2012Quiz Created by
Nevin Karthikezhiyam
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