alignment trade science test

Question 1

the higher you are from sea level the __________________ the atmospheric pressure

Answer 1

lower

Question 2

atmospheric pressure at sea level is

Answer 2

1.01 bar

Question 3

a vacuum occurs when the pressure in a confined space is less than the pressure around it. a perfect vacuum is

Answer 3

o psia and -14.7psig

Question 4

a manometer is an accurate means of reading a vacuum

Answer 4

true

Question 5

Charles law considers ____________ as a constant

Answer 5

pressure

Question 6

when using the horizontal cross dial readings, if you zero the A dial on the right side when looking at MTBS from the Fixed machine, you zero the _______ o’clock reading on dial B and the _________ o’clock reading on the dial A

Answer 6

3,9,

Question 8

the X value in the cross dial formula measures the distance between coupling halves

Answer 8

false

Question 9

if the base plate surface is not level for your drive, what would you look for

offset alignment issues

shaft deflection

soft foot

shaft run-out

Answer 9

soft foot

Question 10

to find L1 and L2 lengths, you will measure from

dial A

Dial B

center of the coupling

none of the above

Answer 10

dial a

Question 11

jacking bolts/screws are used to

position machine to be moved in the vertical and horizontal position and lock machine into place when done the alignment

adjust machine to be moved horizontally and hold machine in place when adding shims under the feet

help hold shims in place

used for rough alignment only

Answer 11

adjust machine to be moved horizontally and hold machine in place when adding shims under the feet

Question 13

when you can’t use dials to measure misalignment and have to use feeler gages of calipers to measure the misalignment, can you use the cross dial formula to calculate the shim moves

yes

no

Answer 13

no

Question 15

when beginning the alignment, (before the use of the dials) you should first align the machine_____________ before ___________________

angularly, offset

horizontally, vertically

horizontally, angularly

vertical, offset

Answer 15

horizontally, vertically

Question 16

when accurate shaft alignment has been achieved, a condition know as _________ exit

centerline conformity

concentricity

eccentricity

vertical polarity

Answer 16

concentricity

Question 17

grout used for filling anchor bolt holes or filling voids under base plates has a mix of

1 part cement, 2 parts sand, 3 parts 3/8” aggregate, water for stiff consistency

1 part cement, 2 parts sand, 1 part 3/8” aggregate, water for stiff consistency

1 part cement, 2 parts sand, no aggregate, water to allow you to pour (fluid consistency)

1 part cement, 2 parts sand, no aggregate, water for stiff consistency

Answer 17

1 part cement, 2 parts sand, no aggregate, water to allow you to pour (fluid consistency)

Question 18

cement base grout can be worked on in ______ and reaches full compressive strength after ___________

3-7 days, 18 weeks

1 days, 4 weeks

1 day, 8 weeks

3-7 days, 4 weeks

Answer 18

3-7 days, 4 weeks

Question 19

dowel diameter is ____________ for indirect drive equipment

1/2 the diameter of the hold down bolts

size on size of the hold down bolts

1 1/2 times the diameter of the hold down bolts

Option 4

Answer 19

size on size

Question 20

when using laser alignment equipment, you would mount the transmitter on the ________________

MTBM

MTBS

stationary machine

you mount the transmitter on both machines

Answer 20

stationary machine

Question 21

a compressor is working at a high attitude. if you compared it to one running at a low altitude machine, the high altitude machine would produce___________________ compressed air over the same time period

more

less

the same

any of the above

Answer 21

less

Question 22

if you heat a gas in a confined space, the pressure will go _______________because the molecules move _____________

down, faster

down, slower

up, slower

up, faster

Answer 22

up faster

Question 22

if you calculated the power consumption of the compressors in the above question, the ______________ would use more power in the same time period

machine at high altitude

machine at low altitude

Answer 22

machine at low altitude

Question 23

to create flow in a compressed air system, you will need a______________ restriction manometer pressure differential a storage tank

Answer 23

pressure differential

Question 24

the absolute scale that works with Celsius is the _______________ Rankine kelvin fahrenheit vacuum

Answer 24

kelvin

Question 25

Pascal's law states energy cannot be created nor destroyed kinetic energy and potential energy in a flowing pipe will be constant pressure in a confined space will transmit equally in all directions pressure and flow creates velocity

Answer 25

pressure in a confined space will transmit equally in all directions

Question 26

Boyle's law considers ______________________ as a constant pressure volume temperature all the above

Answer 26

tempature

Question 26

when there is constant flow in a pipe, the velocity of the gas will _______________ when the pipe size_____________. according to Bernoulli decrease, increases increase, increases decrease, decreases stay the same, increases

Answer 26

decrease, increases

Question 27

Gay - Lussac's law considers ____________________ as a constant (according to the module) pressure volume temperature both the 1st and 2nd answers are correct

Answer 27

volume

Question 28

when calculating any gas law, you must always convert pressure to psig temperature to degrees C both pressure and temperature to absolute you do not need to convert any calculations

Answer 28

both pressure and temperature to absolute

Question 29

if force = pressure x area, than area = _____________ force/volume force x pressure force/pressure pressure/volume

Answer 29

force/pressure