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Ex3 TechCamp Flashcards | StudBud
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Ex3 TechCamp
Ex3 TechCamp
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1
Consider the gears transmission in figure. Knowing that the numbers of teeth are z_{IN}=8 and z_{OUT}=42 compute \tau
5.25
Impossible to determine
0.19
0.56
2
The powertrain scheme in figure represents a BEV vehicle
False
True
3
Given the Drag force formulation: F_{DRAG}=\frac{1}{2}\rho V^2AC_d, what does represent V?
Air pressure
Vehicle speed
Air speed
Relative speed between air and vehicle
4
Consider the figure. Which kind of standardized test does it represent?
Step steer
Straight line acceleration
Moose test
Steering pad
5
When a vehicle is oversteering?
\alpha_R=0
\alpha_R>\alpha_F
\alpha_F>\alpha_R
\alpha_F=\alpha_R
6
Which is the correct formulation of
Lift force
?
F_{LIFT}=\frac{1}{2}\rho V^3AC_l
F_{LIFT}=\frac{1}{2}\rho V^2AC_l
F_{LIFT}=\frac{1}{2}\rho V^2AC_d
F_{LIFT}=\frac{1}{2}V^2AC_l
7
What is the effect on vehicle handling of putting a rear spoiler on an understeering vehicle?
Understeer increases
Drag decreases
The vehicle becomes neutral
Oversteer increases
8
A vehicle with tyres of radius R=0.35 m, has a max speed of v=250 km/h. What is its speed if tyres have now R=0.4 m?
v=286 km/h
Impossible to determine
v=243.7 km/h
The speed remains the same
9
The vehicle travels in an air flow represented by the arrow. How do you expect the aerodynamic yaw moment M_z to be?
Very high
Impossible to be determined
Near or completely zero
-∞
10
Typical commercial cars are
Neutral
Oversteering
Understeering
