Квиз. 2 вариант

What color should the master switches?

• Blue

• Orange

• Red

• Black

How many points may result for the teams with safety uncritical rule violations with a minor benefit to the team that cannot be changed at the event?

• 10 points

• 20 points

• 30 points

• 40 points

How many different tires are allowed on a car?

• All tires on the car must be of the same manufacturer, compound and size

• All tires on the vehicle must be of the same manufacturer and compound but may have different sizes

• Tires are not regulated

• All tires on one axle must be of the same manufacturer, compound and size

• The vehicle may have different tires on all four corners but the configuration must be the same as presented during tech inspection

A horizontal pipe increases from cross-section 1 with A1 = 2.55 cm2 to cross-section 2 with A2 = 7.1 cm2. In cross-section 1 there is a pressure of p1 = 1.2 bar and a flow rate of v1 = 5 m/s. The density of water is 997 kg/m3. Calculate the pressure in bar in cross-section 2 for the flowing water. Round to two decimals.

Mathematical Equivalence

ON

Coco, the three-legged cat with a mass of 3.5 kg, is standing still on a horizontal frictionless surface. While playing with a ball of yarn, having a mass of 0.05 kg, Coco kicks it backwards with one of her three legs so hard that the ball of yarn reaches a speed of 2.3 m/s.

• 0.033 m/s forwards

• 0.077 m/s forwards

• 0.033 m/s backwards

• 0.077 m/s backwards

• no answer is correct

How long will it take to charge a 6,1kWh battery from the 20% of SOC, with an initial voltage of 510V, to the 80% of SOC, with a final voltage of 550V, using a 5,5kW charger with a current setpoint of 12A and 580V of maximum voltage? Round your answer.

• 32 minutes

• 40 minutes

• 47 minutes

• 53 minutes

Your front hoop bracing member consists of a round straight tube made out of baseline material with the dimension 25.4 mm outer diameter and 1.6 mm wall thickness and a total length of 968 mm.
What is the percent increase of the bending stiffness (defined as EI) if you use a round straight closed section tube with the dimension 30 mm outer diameter and 1.5 mm wall thinkness. Round solution to one decimal place.
How much percent increase the weight for this tube? [r=7.874 g/cm³] Round Solution to one decimal place.

• 60.7, 8.6

• 60.7, 12.3

• 52.8, 12.3

• 52.8, 8.6

Heating up an ideal block of aluminum:
Mass 2.4kg, specific heat capacity 900J/kgK, heating power 2000W.
Calculate the time in secounds [s] necessary to heat up this ideal block to 80°C starting at 25°C.
Round to nearest integer.

Mathematical Equivalence

ON