hi there everybody its Richard McMunn
here from the Career Guidance company
how to become calm and I've created a
fantastic new mechanical comprehension
test video for you I'm gonna give you
some questions to try yourself straight
off the bat give them a go there's a
timer for each question see how you get
on some of them are relatively easy some
are Oh some of them are a lot tougher
and then at the end I'm gonna give you
the answers and explanation so the rules
of the mechanical comprehension test are
as follows
you have just 12 seconds to answer each
question that follow so you've got to
work really quickly put yourself under a
bit of pressure that's the only way you
will improve there are 10 questions in
total so it's not gonna take you that
long to work through it answers and
explanations as I mentioned will be
provided so I'll give you the answer and
the exploration so that you learn as you
go if you disagree with any of them
please put your your comments and
thoughts in the questions below the
video please work through the test from
beginning to end so give it a go like I
say won't take you that long and good
luck ok let's get straight into it if
you if you want to put your answer to
the questions below the video in the
comment section please feel free to do
so but like I said I'll give you the
answers at the end ok let's get into it
you have got a timer on each page which
will tick down once it's finished I'll
move on to the next question so you've
got 12 seconds each one here we go
question 1 which load is the lightest A
or B both the same ok so question 1
which load is the lightest load a load B
or both the same question number 2 at
which point would it be easier to haul
up load X a both the same B point a C
point B you go to 12 seconds that's
going down okay moving on now to
question number 3 in the following cog
and belt system which cog will rotate
the least number of times in 50 minutes
is it a cog a B cog B or C both the same
so which cog will rotate the least
number of times in 50 minutes a B or
both the same okay next one question
number four if will be moves
anti-clockwise at a speed of a hundred
revolutions per minute how will will
wheel D move and at what speed a
clockwise faster be clockwise slower C
anti-clockwise faster or D
anti-clockwise slower so a B C or D okay
we are approaching halfway through a
test now hope you still with me question
number five if cog a turns
anti-clockwise as indicated so you can
see their cog a is shown as going
anti-clockwise which way will cog C turn
is it a clockwise be anti clockwise will
see backwards and forwards off you go
so that's question 5 halfway through to
testcomplete hope you still with me
question number six on the weighing
scales which is the heaviest load load a
load B or C both the same
moving on to question number seven how
much force is required to lift that 75
kilogram weight is it a 15 kilograms be
37 point 5 kilograms see 75 kilograms or
D 150 kilograms so how much force is
required to lift at 75 kilogram weight
okay you're doing great question number
8 slightly harder now question eight cog
a the one on the left has 12 teeth and
cog B has 18 teeth
if cogbi completes two full turns how
many rotations will cog a complete is a
three rotations B two rotations C 1.5
rotations will D one rotation only
there's a timer going death
okay moving on to question 9 which
direction should the wind blow in order
for the plane to take off with the
shortest runway is the a or B so which
direction should the wind blow in order
for the plane to take off with the
shortest runway question number 10 how
much weight in kilograms will will you
need to be added in order to balance the
beam so how much weight in kilograms
will need to be added in order to
balance the beam is the a 10 kilograms B
20 kilograms C 40 kilograms or D 80
kilograms so the weight will go here on
the right don't forget to look at the
distances 2 meters and 4 meters the
clock's ticking down off you go
okay if you stuck with me and you've got
to question ten well done I'm gonna come
to the answers now um guys I'd really
appreciate it if you gave the video a
thumbs-up if you'd like this test so far
I'm now gonna give you the answers and
explanations don't forget to also
subscribe to the channel and if you
found it difficult please do let me know
or whether you found it easy put it in
the comment section below
let's get straight into the answers
question one which load is the lightest
okay and it is load a load a is the
lightest now just because it is larger
in size the load B doesn't mean it is
heavier now the clue is in the way the
loads are distributed across the fulcrum
point here across the seesaw B is
pushing down which means that load B
sorry
load a is the lighter so be as heavy in
than a solo day is the lightest okay so
hope you got that one right to let me
know in the comment section if you did
question number two which point would it
be easier to haul up load X so load X is
here is it easier at Point a or point B
well it's actually easier the answer EC
point B now the explanation is the
mechanical advantage at point B is two
therefore it will be easier to hold the
load up at point B then at Point a which
will be less than two mechanical
advantage okay question number three and
by the way if you're struggling with
mechanical advantages and hang on until
the end of the video because I'll tell
you where you can get free mechanical
comprehension test guide that will
explain all about mechanical advantage
question number three in the following
coggan belt system which cog will rotate
the least number of times in 50 minutes
is it a cog a B cog B or C both the same
well the answer is cog a and the
expiration is the largest cog will
always rotate the least number of times
in any given time frame doesn't matter
whether it's ten minutes 50 minutes or
50 hours and also conversely the
smallest cog will rotate the most time
so always remember that question number
four if will be the large one on the
Left moves anti-clockwise which is that
way at a speed of a hundred revolutions
per minute how will wield e the smallest
one
right-hand-side movin at what speed well
the correct answer is anti-clockwise
faster so if one cog rotates
anti-clockwise which B is that means
that all of them will rotate
anti-clockwise now because cog D is
smaller in size it will therefore rotate
faster so the answer is C anti-clockwise
faster question number five if cog a
turns anti-clockwise so obviously
anti-clockwise is against the way a
clock would normally go
so clockwise is the way their hands and
a clock would go to the right and
anti-clockwise is round to the left
so if cog a turns anti-clockwise which
way will cog see turn well the answer is
anti-clockwise because cog a is turning
anti-clockwise which means a central
large cog rotates clockwise therefore C
rotates anti-clockwise question six on
the wane scales which is the heaviest
load so how many of you put a will a
correct answer is they are both the same
see now the Wayne scales are level
therefore the weights must be equal
regardless of the size and always look
out for that mechanical comprehension
tests okay this sort of like trick
questions because most people go well
the one that's heaviest is a because
it's a largest and it's not necessarily
the case question number seven this is a
difficult one how much force is required
to lift that load to lift the weight
okay the answer is thirty seven point
five kilograms if you've got that one
correct please put it in the comment
section below as you've done really well
most people will get that wrong now the
explanation is this type of pulley
system as a mechanical advantage of two
therefore to lift the 75 kilogram weight
it requires 75 kilograms divided by two
equals thirty seven point five kilograms
well I can mentioned earlier before I'm
going to tell you in a minute where you
can get a free mechanical concepts guide
that will teach you all about how to
pass mechanical advantage test questions
now this is a tough one again question
eight cog a has 12 t even could be
larger one as eighteen if cogbi
completes two full turns how many
rotations will COG a complete and the
correct answer is
three rotations so each full turn of
cogbi will result will result in 18
teeth divided by 12 teeth equals 1.5
rotations so two turns of Kobe will
result in COG a completing three
rotations question number 9 which
direction should the wind blow in order
for the blade plane to take off with the
shortest runway oval the answer is a now
in order for the plane to take off with
a shortest runway the aircraft requires
a headwind so it needs to be going into
the head into the head when you notice
that at a lot of air at airports
wherever they are the pilots will always
try and take off into the headwind
that's why you have one of those like
wind socks
you usually orange and it will tell the
pilots which way they're blowing and
they always try and take off into a
headwind because that creates lift okay
number 10 a difficult one how much
weight in kilograms will be needed sorry
will need to be added in order to
balance the beam so some people would
have put be 20 kilograms but there is a
trick here and if you look there these
two metres difference there but for and
how many of you put the answer is 40
kilograms if you did be really honest
put it in the comment section below but
the correct answer is actually a which
is 10 kilograms now the distance of the
weights from the fulcrum and balance
point is double so it's 2 meters there
and it's 4 meters there therefore the
weight required to balance should be
halved so the correct answer is 10
kilograms I hope you got that right we
did world up ok do you want that free
guide that I mentioned about how to pass
mechanical comprehension tests and click
the link below this video to get your
free guide ok it's a PDF download so you
can have it literally within 1 minutes
time and start practicing it looks like
that loads of mechanical comprehension
tests introduction pack in there loads
of sample questions as well just click
the link directly below the video
like I said I'd love it if you gave me a
thumbs up hold really appreciate that
guys spend a lot of time creating these
videos I'd really appreciate it don't
forget to subscribe to channel and say
hi in the comment section below what you
thought about the test questions and how
you particularly got on how many you got
out of 10 and then I hope you have a
wonderful day and thank you very much
for watching