MODULE 06 - MOCK TEST 40 MARKS

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High carbon steel contain carbon

1 point

a) 0.10 to 0.30 percent

b) 0.30 to 0.50 percent

c) 0.50 to 1.05 percent

Clear selection

Which nut can be rotated by finger

1 point

a) Wing nut

b) Plane check nut

c) Castellated nut

Clear selection

hacksaw blade teeth are

1 point

a) 12 to 1 4 TPI

b) 14 TO 32 TPI

c) 14 TO 42 TPI

Clear selection

Turnbuckle is

1 point

a. Two threaded terminal and barrel

b. Two threaded terminal

c. One threaded terminal and other barrel

Clear selection

Melting point of steel?

1 point

A.2600 F

B.1100 f

C. 1300-1600 f

Clear selection

7 x 9 cable means

1 point

a) nineteen strands for seven wire each

b) seven strands of nineteen wire each

c) both

Clear selection

---- is high in hardness , strength, and corrosion resistant properties

1 point

a) high carbon steel

b) nickel steel

c) chrome –nickel

d) chromium steel

Clear selection

Inconel is

1 point

a) nickel – chromium steel alloy

b) nickel – chromium iron alloy

c) copper and zinc alloy

Clear selection

Aircraft flaring tool must have flaring angle of?

1 point

a) 40-47 degree

b) 35-37 degree

c) 45-47 degree

Clear selection

The most common rotating beam or rotating cantilever test of the the material

1 point

a) Impact test

b) Torsion test

c) Fatigue test

Clear selection

The thickness of cadmium platting deposit is dependent upon the

1 point

a) Voltage & current

b) Time & voltage

c) Time & current density

Clear selection

The type of self locking nut currently in use are the

1 point

a) Boot self locking nut

b) Elastic stop nut

c) Both

Clear selection

The use where the desired tightness can be obtain with the finger and where the assembly is frequently removed

1 point

a) Plane check nut AN 316

b) The light hex nut AN 340 & AN 345

c) The wing nut AN 350

Clear selection

Flare less tube installation

1 point

a) It is important that the find tightness commence at the point where the nut just being to bottom

b) As in (a) and use a wrench and turn the nut 1/6 turn

c) As in (b) and use a wrench on the connector to prevent it from turning the nut

Clear selection

The plastic cannot be reshaped once being cored by heat

1 point

a) Thermoplastic

b) Monolitic

c) Thermosetting

Clear selection

MTCS

1 point

a) A rivet coated with zinc chromate is yellow

b) A rivet anodized surface is Perl gray

c) A rivet metal sprayed is silvery gray color

d) All

Clear selection

In needle bearing

1 point

a) The length of the roller is equal to the dia of the roller

b) The length of roller is many times longer than dia

c) The dia of the roller is 2 times larger than roller

Clear selection

a file test is a method of determining the hardness

1 point

a) a piece of material by trying to cut into if with the corners of a file

b) a piece of material by trying to cut into if without the corners of a file

c) both

Clear selection

Which rivet are used in the interior of the aircraft where clearance is not required

1 point

a) Round head rivet

b) Brazier head rivet

c) Universal head rivet

Clear selection

The strength of which cannot increase by heat treatment

1 point

a) Beryllium copper

b) Aluminum bronze

c) Muntz metal

d) Monel

Clear selection

Type of damage and defect in composite

1 point

a) Crack

b) As in (a) and cosmetic

c) As in (b) and impact

d) As in (c) and holes

Clear selection

MTCS

1 point

a) 10 gauge- blue

b) 15 gauge- red

c) 11 gauge- yellow

Clear selection

In a simpler gear train

1 point

a) At least two or more gear rotate at different shafts

b) As in (a) even number of gear rotate in same direction

c) As in (b) odd number of gear rotate in opposite direction

d) As in (a) even number of gear rotate in opposite direction

Clear selection

When copper wire is replaced by Al wire

1 point

a) Copper wire 2times larger than Al wire

b) Al wire is 2 times larger than copper wire

c) Copper wire 6 times larger than aluminum wire

Clear selection

Shearodising carried out by heating the part in a closed rotating chamber containing

1 point

a) Al oxide at 1400° F

b) Zinc oxide at 1400°F

c) Zinc oxide at 700°F

Clear selection

The hardness test is made with a diamond penetrator in the form of square base pyramid

1 point

a) Brinnel

b) Rockwell

c) Vickers

Clear selection

Scratch abrasion or minor corrosion are smoothed out

1 point

a) Bushing tool

b) Bushing tool & Al wool

c) Al wool

Clear selection

In case of diameter pitch

1 point

a) Higher diameter pitch smaller tooth size

b) Higher dia larger tooth size

c) Lower dia smaller tooth size

Clear selection

MTCS

1 point

a) Group 2 bearing have the largest radius internal clearance

b) Group 4 bearing have the smaller internal clearance & normally used in precision work

c) Normal group bearing are used for most general application where only on owing is interface fit

Clear selection

The spring is used for compression and tension load

1 point

a) Helical spring & tension spring

b) Torsion spring

c) Leaf spring

Clear selection

The fitting are used to joint hydraulics line in areas where connection that is visually maintenance free

1 point

a) Swaged fitting

b) Union fitting

c) Cryot fitting

Clear selection

Which type of corrosion has also called false brinneling

1 point

a) Stress corrosion

b) Integranular corrosion

c) Fretting corrosion

d) Dissimilar metal corrosion

Clear selection

MTCS

1 point

a) Clevis bolt used in tension

b) Eye bolt is used in shear only

c) Jo bolt has the high shear and tensile strength

Clear selection

1100 rivet is used

1 point

a) Soft material

b) Structure part

c) Hard material

Clear selection

In which corroding action take place

1 point

a) 100 &3003

b) 21127 & 2017

c) 3003 & 2017

d) 7075 &2117

Clear selection

The material used for welding

1 point

a) chrome vanadium

b) molybdenum

c) chrome molybdenum

Clear selection

The purpose of lubricant are

1 point

a) Lubricate the area of rubbing contact eg. Between the rolling element

b) As in (a ) cage

c) As in (b) protect from corrosion

d) As in (c) dissipate heat

Clear selection

The disadvantage of titanium is

1 point

a) High melting point

b) Brittle due to long time air

c) both

Clear selection

Which process have wear resistance surface or case over a strong tough case

1 point

a) Annealing

b) normalising

c) Case hardening

Clear selection

The extra flexible cable used in aircraft

1 point

a) Used in primary control

b) As in (a) & not adjusted frequently

c) As in (b) & 7×19

Clear selection

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