I need help with this practice exam plz$!$

$1.$ The blocks made in labs are cubes:

a$.$ With $90$ degree angles which can be measured using protractor

b$.$ with $90$ degree angles which can be measured using a height gauge

c$.$ The flatness of the faces can be measured with depth gauge micrometer

d$.$ the parallelism of the faces can be measured using a height gauge

e$.$ a and d

$2.$ Which of the following is a non$-$traditional joining process?

a$.$ fastening

b$.$ riveting

c$.$ polishing

d$.$ soldering

e$.$ laser and EB welding

$3.$ What is the difference between H and T in aluminum alloy designation?

a$.$ H is standing for hardness such as HRc$,$ HV$,$ HK$...$

b$.$ H can be quarter$-,$ haft$-$ or full$-$hard

c$.$ T means tempers

d$.\backslash ($ T $\backslash )$ is a measure for toughness and resilience

e$.$ none of the above

$4.$ Outside calipers are:

a$.$ vernier micro$-$calipers

b$.$ pocket slide calipers

c$.$ tools to measure length or OD

d$.$ telescoping gauges

e$.$ angle gauges

$5.$ Reamers used in the labs for the blocks:

a$.$ are all straight six$-$fluted

b$.$ should be run on a lathe or mill at slower speeds than straight turning

c$.$ should be lubricated and blow$-$cleaned during reaming

d$.$ all are correct except e

e$.\backslash (11/16\backslash )$ in OD

$6.$ Operator's skill level in sheet metal forming is a function of:

a$.$ none of the following

b$.$ Emodulus

c$.$ yield strength

d$.$ sheet thickness

e$.$ bending dies used

$7.$ Travelers can be used to:

a$.$ map the route from $\backslash ($ A $\backslash )$ to $\backslash ($ B $\backslash )$

b$.$ answers the three questions customers would ask before awarding a PO

c$.$ as a cost management tools

d$.$ b and c

e$.$ validate routers

What is the diflerwnce beoween AA E$061-$T$4$ and AA Coc$1-$Tu$?$

a T$6$ a naturally aged, T$4$ is furmace agod then acrk$-$hardened

T$6$ is strmin$-$hardened to three$-$quarters hard

c$.$ T$3$ is hardened by cold working

d$.$ both are stress rellerved by thermal inpuat

e$.$ T$4$ is naturally aged after quenching

A round keyway in at round shaf can be produced by:

a$.$ facing$-$off on a turret lathe

b$.$ miling wth a bal$-$nosed cutter

c$.$ waterget milting

d$.$ e$-$chem polfishing

a wire EDM

Continuous casting is:

a$.$ none of the following

b$.24-7$ casting of ingots in three shifts without interruption

c$.$ very cost$-$effective for large production of steel ingots with more consistent properties

d$.$ casting and forming ingots in one process without cooling down to room temperature

e$.$ required very extensive capital investment which rarely makes economic sense

Hot tears in castings are caused by:

a$.$ Lueder's bands

b$.$ difference in cooling rates and difference in local surface to volume ratios

c$.$ highly uniform solidification rate

d$.$ shrinkage

e$.$ b$,$ c and d

Sand casting is:

a$.$ using non$-$reusable sand for permanent molds

b$.$ appropriate for large and very high precision castings

c$.$ making a pattem of the part without shrinkage factor

d$.$ making a wax pattern for the core

e$.$ none of the above

Routers are:

a$.$ updated cost estimates after receiving P$.$O$.$

b$.$ lists of work instructions such as how to set up a machine

c$.$ compositions of metal alloys

d$.$ required to set up climb milling if conventional milling is not feasible

e$.$ instructions how to go from a drawing to a sand cast part

The threaded base of a light bulb can be produced cost$-$effectively by:

a$.$ turning on CNC lathes

b$.$ laser beam cutting

c$.$ wire EDM

d$.$ spin casting

e$.$ none of the above

Losi wax casting is:

a$.$ thin shell casting with permanent molds

b$.$ When both mold and pattern are non$-$permanent

c$.$ better than die casting in term of surface quality

d$.$ lost$-$foam die casting

e$.$ plaster$-$mold die casting