7practicas

Oscilloscopes typically measure (4.4). * A = the voltage and other parameters of processed signal. f.

Time domain reflectometer is uses to (TDR): (4..4). C) Check standing waves in transmission lines in order to detect damaged wiring. d.

Built in test equipment tests (BITE) (4.2). A) may be also done by B1 licensed technician, not only by B2. ddd.

The maintenance function of Bite system is (4.3). A) available to technician only on ground. dddd.

What is so called ACARS system? (4.2). A) System which sends BITE maintenance data to ground maintenance station. ddd.

Typical minimum instrumentation on pitot-static test equipment consist of: (4.5). B) Altimeter, vertical and speed indicators. dddd.

Is functional test of the system needed after special test equipment test has been performed? (4.7). Yes. dddd.

Use of special electronic test equipment is (4.2). B) in domain of B2 licenced technician. f.

Pitot-static test equipment shall be checked (4.6). C) each time prior the use. d.

What are oscilloscopes for? (4.4). C) To measure variations of parameter in a function of time. d.

How can avionics test equipment be classified? (4.3). B) Shop test equipment and portable test equipment. d.

Automatic test equipment is used for (ATE): (4.7). B) To interface and test various avionics on the aircraft. d.

A generator type of special test equipment (4.4). A) provides the known signal or stimulus which is then proceeded by the tested unit. ddd.

What are data bus analyzers used for? (4.7). A) They are used to test digital systems. xddd.

Data bus analyzers are typically plugged into (4.7). B) location where LRU was removed. ddd.

Spread Spectrum Time Domain Refrectometer is among others used (4.5). *A = to locate the problem on the electrical lines, so mechanic can go and repair the line at that spot. d.

The Marker Beacon Receiver has?. * C = Specialised test equipment. d.

Which tool is used to find the center of a shaft or other cylindrical work? (3.2). B) combination set —> (sliding caliper.). d.

Basic classification of avionics test equipment divides (4.3). * B) equipment on shop and portable test equipment. ddd.

Why you should never use Carbon Dioxide fire extinguisher for Class D fire? (1.8). *B) Because of its cooling effect metal can explode. dddd.

The tolerance is (6.3). A) the difference between "upper" and "lower limits. dd.

Minimum separation between wire bundle and movable controls (7.27). *B) shall be at least 1/2 inch when bundle is displaced by light hand pressure in direction of controls. dd.

Drip loop is installed on wiring : (7.23). *C) To prevent water or condensation collected in sleeves and drained out from these sleeves. dffd.

Ground wires and jumpers terminated to shield must be? (7.3). *C) Of the same wire specification as the shielded wire. ddd.

Rolling type flaring tools are used (9.6). *C) for soft aluminium, copper and bras tubes. ddd.

Dashed lines in the different schematics mean (5.17). *C) hidden lines. ddsd.

First four chapters in ATA 100 specifications are intended for (5.26). *C) airline use. ddd.

What does it mean RBL 59.0? (5.8). *B) Means station which is 59 inch on the RH side of the airplane measured from the centerline of fuselage. dd.

Deviations for (6.3). *B) holes are indicated by capital letters and shafts by small letters. ddd.

If teeth of gear are meshed to low in relation to the teeth (12.2). *A) there will be no lash and consequently no proper lubrication. ddd.

If teeth of gears are meshed to high in relation to the theeth (12.2). *A = the load can break the upper part of the teeth. ddd.

Cables are inspected for any broken wire (13.6). *C) by passing cloth over the inspected area of cable and by visual inspection. ddd.

With liquid penetrant inspection (18.48. *A) we can locate the damage in material on the surface of part only. ddd.

At roller bearing installation (11.5). *A) Force for press fit is always transmitted from inner ring to outer and viceversa. dd.

Small indentations in the race of a ball bearing indicates (11.3). c Brinelling. ddd.

Can we weld aluminium and magnesium together ? (15.27). *B) Never. sss.

Do you have to weigh the aircraft after major modification or equipment change ? (16.26). *B) Yes, if SB says so. Aircraft can be weighted or CG can me mathematically calculated. ddd.

What statement for grinding is correct one ? (3.30). *B) Wet grinding applies water for cooling, faster grinding and washes away metal bits and abrasives. s.

BITE is so called Build-in-test-equiment and serves for (4.2). *C) internal testing of each electronic LRU. d.

ATA 100 subject specification consists of (5.23). *A) first par of numbers is chapter, second par of numbers is subchapter and third pair of number is page numbers. sddd.

Drip Loop must be arranged? (7.23). *A) As not to fall on the equipment which might get damaged. On moisture-resistant connectors, the drip loops may be as per figures allowing any fluid to run off the wire or cable before entering the connector. ddd.

Aircraft is weighted with (16.19). *C) fuel tanks either totally full, partly full or empty. Non usable fluids may be filled in components (oils in engines and landing gear struts). d.

A check for a cable pulling out of a swaged fitting is by (13.3). *B) Looking for a shinny surface near the fitting. d.

Hard or overweight landing is the one (19.4). *A) with exceeded vertical speed component. ddd.

Which is the purpose of Maintenance Planning Dept. in the air carrier's Engineering (20.9). *A) It defines work packages for Aircraft Maintenance, assures on the time accomplisment of tasks from Maintenance Program and does Record Keeping. df.

The bend radius of a wire may be reduced to three times the outide diameter of the wire if (7.22). *C) The wire is supported at each end of the bend. d.

The gear pattern is the contact area for one gear to the another. Ideallly the contat pattern will be located (12.2). *C) in the middle of the gear teeth. ddd.

After swaging of end terminal to a cable perform the proof loading test with (13.3). *C) 60% of its rated braking strength. dd.

Copper chill bars are used (15.37). *B) to be placed near the welding position in order to absorb the heat from surrounding area. d.

Rust on ferrous materials is (8.11) *. B) not a protection oxide as some corrosion on other materials might be. ddd.

An aircraft which has negative moment when calculating CG (16.8). *B) Wil have a longer take-off line. dd.

Aircraft can be weighted (16.9). *C) by weighing heads installed on jacks or weighing platform cells. ddd.

An installation drawing is (5.3). *A) the one which gives full information of a part in finally installed position. dd.

ATA chapter 24 stands for (5.26) *. B) electrical systems. ds.

Allen wrench is used for (3.13). *A) tightening of special type of recessed screw. d.

Which tool can be ued to measure de alignment of a roto shaft or the plane rotation of a disck (3.7). *A) dial inadicator. ddd.

Water fire extinguishers are suitable for extinguising following fire! (1.7). *B) They are good for paper and wood fire but never use them for metal caused fires. dd.

What may happen when you handle oxygen works with hands dirty of petroleum products?(1.5). *B) Explosion or fire may happen. dd.

Personal tools that are use for work on aircraft must be (2.2). *A) daily controlled. dd.

ATA chapter 35 stands for (5.26). *C) oxygen systems NOTE: Atmosphere composition 78% Nitrogen and 21% Oxygen. dd.

What does it mean WL 70.0? (5.8). *A) Means station which is 70 inch higher from the Water Line (WL). dd.

Pictorial drawings are pictures (5.9). *B) showing part as it appears to the eye. dd.

Dimensions of hole 2.27 to 2.31 and of pin 2.29 to 2.33 presents (6.2). *A) interference fit. ddd.

Which clearance must have press force to be installed? (6.3). *C) Interference. dd.

Terminal block is (7.8). *C) where more wire terminals are connected together. ff.

What is wire shielding important for? (7.29). *A) To eliminate Electromagnetic Interference (EMI) which may be caused by un-shielded wire. fff.

Fireproof junction box shall be made of (7.11). *C) stainless steel. ff.

Which wires doe not need any identification marking? (7.21). *C) Wires shorter than 3 inch. fff.

Slack between two wire bundle supports may be (7.24). *A) maximum 1/2 inch when bundle is displaced by light hand pressure in direction of controls. fff.

The female part of connector has (7.14). *A) sockets. ff.

Use a coaxial cables with solid center conductor (7.16). *B) is recommended against the stranded center conductor. ff.

Why bends on rigid pipes are mandatory? (9.3). *A) To compensate different loads on pipes caused during installation and/or operation inchanging pressure and temperature conditions. ff.

To correctly tension control cables you need: (13.9). *C) To have control surface locked in the cable sectors and adjust turnbuckles equally. fff.

Soft soldering is usually used for joining (15.3). *A) copper and brass where leak joint proof is needed. ff.

When freezing precipitation exists and there is a risk of contamination of the surface at a time commercial aircraft departure (17.8). *C) aircraft shall be de-iced. ff.

Maximum take off weight is (16.5). *B) the maximum weight of the aircraft on take off roll. ff.

Forward and aft limits of CG (16.20). *B) Are specified by the manufacturer. fff.

TIG welding of aluminium uses (15.30). *B) argon or helium shielding gases, but argon is preferable. ff.

What weld is a good weld? (15.23). *B) The one which shows no signs of blowholes, posority and projecting globules. ff.

A person should approach or leave a helicopter in the pilot's field of vision whenever the engine is running to avoid (1.3). *A) the tail rotor. fff.

Long wires shall be identified (7.18). *B) at each end and 15 inch maximum intervaks along the wire length. fff.

Shielding is the process of applying metallic covering to wiring (7.20). *A) to reduce the efects of EMI (Electro Magnetic Interference). fff.

When producing new rigid pipes avoid (9.2). *B) producing pipes without bends. fff.

Can electric current flowing through the bearing damage it) (11.4). *C) Yes, because at the contact surfaces of ball and outer or inner rings arcs are created. ff.

Can overheated spring exercise its initial function? (10.2). *A) No, because by heating material loose elasticity. fff.

Pressure stream cleaning of installed bearings (11.2). *B) Must be avoided in any case as brings internal pollution in bearings and washes away lubricant. ff.

A chain removed for routine inspection is checked for: (12.4). *A) Elongation, wear and possible corrosion. fff.

Hot start of the engine (17.18). *B) occurs when during eengine start EGT exceeds allowable limits. ff.

Jacking of a large aircraft is usually performed by (17.6). *A) Two jacks points on wings, one jack point in nose area and one support point at the back of the fuselage. fff.

Life limited items on the aircraft are components (18.9). *B) that have to be replaced after certain period of operation regardless their operational functionality. ff.

To prevent expansion of corrosion (18.13). *C) Whenever found shall be throughout removed. ff.

Where in AMM you can find standard practices for overhaull and repair? (18.67). *B) AMM ATA chapters 12 and 20. fff.

The allowable wear of the cable be found in (13.6). *B) AMM chapter 20. rr.

Inspection after hard landing is consisted inspection in more stages. After stage 1 finished without findings (19.4). *B) stage 2 is not necessary to be performed. rr.

How can we determine the loss of strength of aluminium alloy exposed to the heat or fire. (19.4). *B) By conductivity test. rr.

What is Service Bulletin (20.3). *A) SB is notification of the aircraft type operator about the availability of the modification or inspection. rrr.

Is recommended Service Bulletin (SB) mandatory to be performed on the aircraft? (20.4). *A) No, it is decision of operator to implement it or not. rr.

An alert Service Bulletin concerns (20.4). *C) and element or system affecting safety. rr.

AN INSULATION DRAWING IS: *A) THE ONE WHICH GIVES FULL INFORMATION OF A PART IN FINALLY INSTALLED POSITION. dsdd.

THE NECESSARY LENGTH (SLACK) OF WIRE BUNLES MUST BE AVAILABLE TO?. *C) PERMIT TWO RETERMINATION WITHOUT REPLACEMENT OF WIRES. d.

WHY JACKS PADS ARE NECESSARY TO BE USED DURING JACKING OF AIRCRAFT?. *C ) TO PROTECT AIRFRAME STRUCTURE OF JACKS AND SPREAD WEIGHT FORCE ON LARGE AREA. dddd.

Aircraft technical log book shall (20.8). *A) be approved by the operator's authority. ddd.

Aircraft maintenance program shall be approved by (20.2). *B = competent authority of the state of the operator. 33.

When installing CRES material with magnesium or aluminium materials (14.32). *B) apply surface protection in order to prevent mating of these materials with each other. d.

Them minimum radius of bend of wire in bundles may not be less than (7.22). *A) Ten times of the largest diameter wire in the bundle. kkkk.

Important part of probes inspection is (18.8). *C) Both other answers are correct. d.

What does it mean FS 160.0? (5.8). *B) It means Fuselage Station which 160 inch back from the airplane station 00.0. jjjj.

First step of successful trouble shooting is (18.68). *C) is gathering as much as possible transparent information about the problem. sd.

On hoses, the inspection criteria requires(9.9). *A)Check according to AMM for permitted damage. D.

What is Hold Over Time (HOT) ? (17.9). *C) Estimated time in which anti-de icing fluid prevents formation of frost or ice. df.

Material simbols on drawings show (5.20). *B) what material the part is made of. d.

What is dimension deviation? (6.3). *B) Difference between nominal dimension and actual dimension. d.

Regarding the drainage of moisture away from connector which statement is correct? (7.15). *B) wiring shall be routed in away that moisture is drainage away from connector or if that is not possible, connector shall be sealed. d.

The best position of the attachment hardware of the clamp is when (7.24). *A) POSITIONED ABOVE THE CLAMP. df.

EWIS contains (7.2). *C) Wires, splices,connectors,bus bars, groundings. d.

The smallest rivet pitch allowed is (8.6). *B) 3 times of rivet diameter. d.

May we use welded stainless stilll members as a structural members of construction? (5.24). *B) No, because when welded loses it strength. d.

Cargo placed aft of the CG will produce (16.9). *B) Positive moment. d.

Before aircraft is weighted (16.16). *B) shall be leveled in longitudinal and lateral axis. sds.

Which of the metals is the most chemically active in regards of corrosion? (18.13). *B = Magnesium. dd.

HIRF stands for (19.3). *C) High Intensity Radiated Fields. ds.

Lighting strike damages (19.2). *C) non-conductive materials. d.

What kind of damage is the most common after hard landing ? (19.4). *A) Wrinkle skin and lose rivets. dddd.

What Halons are recommended for use on Aircraft? (1.10). *C) 1211 and 1301. ddddd.

Vernier scale on a micrometer enables (3.6). *B) to read a fraction of the division that is indicated on the thimable scale. ds.

Overheating of the bearing is usually caused by (11.3). *A) lack of sufficient lubrication. d.

The best way of bearing lubrication is by (11.6). *C) grase using pressure bearing lubrication tool. d.

If you find manufacturer's wire splice in the control cable (13.9). *A) additionaly measure cable tension to be sure everything is in order. dc.

Can aircraft be loaded in a way moment falls out of predefined CG limits? (16.24). *B) No. jjjjjj.

Points forward of the datum line are(16.9). *A) Negative. d.

Towing of the aircraft with inoperative brakes is (17.21). *B) possible providing person with chocks walking along with the aircraft movement. d.

What is the difference between bonding and grounding of aircraft while re-fueling? (17.30). *C) Grounding is connecting aircraft to the fuel truck. d.

What happens to a part or component over reparable limit? (18.31). *A) If structural part or component is over reparable limits, it must be replaced and can not be repaired any more. d.

Any repair on the aircraft (18.25). *A) may in no way decrease the strength of the aircraft structure. d.

Holes and a few projecting globules are found in a weld. What action should be taken? (15.23). *B) remove all the old weld, and reweld the joint. d.

The datum line on the aircraft is (16.3). *A) Imaginary vertical plane from which all horisontal measurements are taken. ddd.

May aircraft fly with some failed systems? (20.10). *A) Yes, but only if deficiency is allowed according to MEL. dddd.

Primarily purpose of conduit is (7.27). *B) mechanical protection of wires. cdd.

The minimum edge distance for the countersunk rivets is. *A) 2 times of rivet diameter. jjjj.

Rigid pipes are designed with bends to. *A) allow expansion and retraction due to heat an absortion of vibrations. sdss.

A fuel that vaporizes too readly may cause. *C) Grounding is connecting aircraft to the fuel truck. dc.

Negligible damage is damage that. *B) can be repaired by installing the splice or patch. dd.

When aircraft is ETOPS approved preflight check must be performed by. *C = Personel holding etops pre-flight check authoritation. jjjj.

Wire clamps on A/C shall be installed in intervals (7.23). *B) not exceding 24 inch. jjjjj.

Interference fit has limits always such that (6.2). *B = what ever two matching parts we take their dimensions will interfere. s.

If rivet hole is bigger than the rivet shank the rivet is installed with (6.4). *A) Clearance fit. s.

The max allowable elongation of a chain is. *C) The major factor during the inspection and possible reason for chain replacement. sd.

Titanium must be kept apart from aluminium,steel and magnesium to. *C) prevent galvanic corrosion. jjjj.

When rivets is removed and if rivet hole is larger than before. *B) one size bigger rivet must be used. jjjj.

Trouble shooting procedures are (18.67). *B = Self produced procedures which lead us to as possible defect rectification. df.

The presence of chipped and cracked paint around the rivet heads. *C) may indicate shifted or lose rivets. sd.

If we weld is done in more than one pass it is important to. *B) removes oxides carefully before welding over them. cdcds.

Anodised surfaces of aluminium alloys. *C) may not be treated by steel wool, steel brushes or any abrasive materials. d.

What does a release to service to an aircraft confirm? *. B) confirm the ordered works were done according to relevant standards. d.

Use of coaxial cables with solid center conductor (7.16). *C ) = is not recommended at all. jjjjj.

Analyzer i sthe type off special test equipment used to (4.4). *B = Generate signal and measure response on that signal. jjjj.

Is dry powder extinguisher recommended in aviation (1.10). *C = No, because remainded powder creates cleaning difficulties and can damage electronic equipment. d.

Use of workshop material which is unctrolled is (2.3). *C = in aviation not allowed. d.

When drilling holes in metal larger than 3/16 inch (3.34). *A = pilot hole with smaller drill should be done first. d.

Detail drawing of a parts is (5.3). *C = is a description of a single part up to every detail. d.

If dimension of part is 30mm and has tolerance +0.25 that means (5.21). *B = that part may be 30mm minimum and 30.25mm maximum dimension. sd.

wiring diagram shows (5.16). *A = the wires and all elements connected in the separate electric system. dddd.

Aluminum terminal lug may be (7.8). *A = used for aluminum wires only. j.

The minimum bend radius for a coaxial radio frequency cable is? (7.22). *B = Six times the outside diameter of the cable. sdsds.

Testing coaxial cable (7.15). *C = the resistance between conductor and shielding must be infinite. f.

Mating of adjacent connectors shall (7.14). *B = not be possible. d.

Wires and cables support is used to? (7.15). *C = Both answer are correct. ddd.

Drill hole for rivet should be (8.10). *A = 0.003 inch bigger than rivet diameter. dd.

The minimum edge distance for the universal rivets is (8.6). *B = 2 times of rivet diameter. d.

What are most often damages of a spring? (10.2). *A = Corrosion, fatigue and over-temperature. dddd.

Which is the role of regular greasing at roller bearings (11.5). *C = To wash-away internal pollution and restore lubrication capabillity of grease. ds.

Bruising is caused by (11.3). *B = fine particle contamination either from the bearing itself or from outside teh bearing. ddd.

Splicing of cables is (13.3). *C = allowed but only in areas where cable doesn't run over some pulleys or fair-leads. kjh.

What is the proof loading for cables after swaging? (13.3). *B = 60% of breaking load. d.

Sandbag forming is one (14.28). *A = mannual-hand forming method. khjg.

After repair of composite material assure (14.40). *C = that conductivity in composite material is restored. sdfgsdfg.

If the weld is done in more than one pass it is important to (15.36). *B = remove oxides carefully before welding over them. ffdf.

An aircraft should never been re-fueled when (17.30). *C = Weather radar operating. d.

Which areas are critical during the anti-icing application? (17.10). *A = Pitot-static probes, AOA probes, landing gears. d.

In which manual can you finde detail instruction for repair of component that has been removed from the aircraft. (18.5). *A = Overhaul manual (OM) or component maintenance manual (CMM). d.

Through transission ultrasonic inspection uses (18.5). *A = Two transducers - transmitter on one side of the part and receiver on the other side of the measured part. fgsdfg.

Lightning strike damages (19.2). *C = non-conductive materials. gdsfg.

Where are most probable locations of damage after the lightning strike? (19.2). *A = On wingtips, nose or landing gear, horizontal and vertical stabilizer, fuselage rivets, antennas. d.

Smaller aircraft may have more frequent maintenance checks because of (19.5). *C = Landings on uneven-grass runways (field). df.

Aircraft technical log book shall (20.8). *A =be approved by the operator's authority. df.

Aircraft maintenance program is based on (20.2). *C = Operator's Maintenance Program Document (MPD). d.

Pre-flight check and transit check is (20.8). *C = operators responsability and is therefore signed by the flight crew. ddd.

Calibration of special equipment shall be performed: (4.7). *C = On regular basis. d.

Analyzer is type of special test equipment used to (4.4). *B = generate signal and measure response on that signal. ddd.

What does ACARS do? (4.2). *C = Sends BITE maintenance data to the ground. sd.

Oscilloscope is the instrument for: (4.4). *C = Both above. d.