NTN FireTeam Mechanical Aptitude - Part
2.1 Exam Practice Guide 2026
1. Consider the belt e. C turns clockwise at 25 RPM
drive system.
Which of the fol- Explanation: Axle A is the start of the system, as indicated by the word 'input.' The
lowing statements disc on axle A is half the diameter of the one it is directly connected to on axle
is true? B. So, for every 1 rotation of A, B would perform half a rotation.The second disc
on axle B is connected to a disc on axle C, and is once again half the diameter
a. B turns of the disc on C. So, for every 1 rotation of B, there is half a rotation of C.
anti-clockwise at So, for every 1 rotation of A, there is 0.5 rotations of B, and therefore 0.25
50 RPM rotations of C. If A is rotating at 100 RPM (revolutions per minute), then C is
b. C turns rotating at a quarter of that, or 25 RPM.Axle A rotates clockwise, so B and C will
anti-clockwise at also rotate in the same direction.
25 RPM
c. A and C turn
clockwise and B
turns anti-clock-
wise
d. C turns clock-
wise at 400 RPM
e. C turns clock-
wise at 25 RPM
2. Which of the above c. C
systems requires
the least force at F Explanation: C would require the least force to lift the weight. This is because of
to lift the weight of the pulley system employed in scenario C. The more pulleys you have the more
1 kg? parts of the rope act on the weight.
a. A
b. B
c. C
, NTN FireTeam Mechanical Aptitude - Part
2.1 Exam Practice Guide 2026
d. They are all the
same
e. B and C do not
work
3. Considering the c. C
above systems, if
you want to lift the Explanation: C would require the greatest length of rope to lift the weight by that
weight by 100mm, distance. The distance that the weight is lifted by depends on how many pulleys
which rope will there are. Each pulley used is an occasion when the rope is looped around. The
have to be pulled more times the rope is looped around, the further it has to be pulled to raise the
further? pulley and the weight attached to it.
a. A
b. B
c. C
d. They are all the
same
e. B and C do not
work
4. If you want the b. B must be lighter than A
beam to balance:
a. B must be heav- Explanation: The distance from the fulcrum (point on which the beam rests) and
ier than A the weight used are proportional to the force produced. As a weight is placed
b. B must be further away from the fulcrum, the force increases. Therefore, if the distance
lighter than A
2.1 Exam Practice Guide 2026
1. Consider the belt e. C turns clockwise at 25 RPM
drive system.
Which of the fol- Explanation: Axle A is the start of the system, as indicated by the word 'input.' The
lowing statements disc on axle A is half the diameter of the one it is directly connected to on axle
is true? B. So, for every 1 rotation of A, B would perform half a rotation.The second disc
on axle B is connected to a disc on axle C, and is once again half the diameter
a. B turns of the disc on C. So, for every 1 rotation of B, there is half a rotation of C.
anti-clockwise at So, for every 1 rotation of A, there is 0.5 rotations of B, and therefore 0.25
50 RPM rotations of C. If A is rotating at 100 RPM (revolutions per minute), then C is
b. C turns rotating at a quarter of that, or 25 RPM.Axle A rotates clockwise, so B and C will
anti-clockwise at also rotate in the same direction.
25 RPM
c. A and C turn
clockwise and B
turns anti-clock-
wise
d. C turns clock-
wise at 400 RPM
e. C turns clock-
wise at 25 RPM
2. Which of the above c. C
systems requires
the least force at F Explanation: C would require the least force to lift the weight. This is because of
to lift the weight of the pulley system employed in scenario C. The more pulleys you have the more
1 kg? parts of the rope act on the weight.
a. A
b. B
c. C
, NTN FireTeam Mechanical Aptitude - Part
2.1 Exam Practice Guide 2026
d. They are all the
same
e. B and C do not
work
3. Considering the c. C
above systems, if
you want to lift the Explanation: C would require the greatest length of rope to lift the weight by that
weight by 100mm, distance. The distance that the weight is lifted by depends on how many pulleys
which rope will there are. Each pulley used is an occasion when the rope is looped around. The
have to be pulled more times the rope is looped around, the further it has to be pulled to raise the
further? pulley and the weight attached to it.
a. A
b. B
c. C
d. They are all the
same
e. B and C do not
work
4. If you want the b. B must be lighter than A
beam to balance:
a. B must be heav- Explanation: The distance from the fulcrum (point on which the beam rests) and
ier than A the weight used are proportional to the force produced. As a weight is placed
b. B must be further away from the fulcrum, the force increases. Therefore, if the distance
lighter than A
