1.
What is the minimum width of tabs used for a lap belt mount and anti-submarine belt mount when mounted separately and also when together?
Correct Answer
D. There is no such rule
2.
The head restraint’s mounting and attachment must be strong enough to withstand a force of ___ applied in a rearward direction.
Correct Answer
A. 890 N
Explanation
The correct answer is 890 N. The head restraint's mounting and attachment need to be strong enough to endure a force of 890 N applied in a rearward direction. This force is necessary to protect the occupant's head and neck from injury during a rear-end collision by preventing excessive movement and providing support.
3.
A sleeve butt joint can be used for attaching roll hoop bracing. What is the minimum prescribed grade and diameter of the bolt that is used in it?
Correct Answer
C. 9.8 and 6mm respectively
Explanation
A sleeve butt joint is a type of joint used for attaching roll hoop bracing. In this joint, a sleeve is used to connect two pieces of material together. The minimum prescribed grade of the bolt used in this joint is 9.8, which indicates a high tensile strength. The diameter of the bolt used in this joint is 6mm, which refers to the thickness of the bolt. Therefore, the correct answer is 9.8 and 6mm respectively.
4.
Adequate isolation must be provided to ensure the driver doesn’t come in contact with any surface whose temperature exceeds 60oC. To incorporate this, the minimum isolation thickness for heat transfer through conduction, convection, and radiation is?
Correct Answer
A. 8mm, 25mm, 0.4mm respectively
Explanation
The correct answer is 8mm, 25mm, 0.4mm respectively. This means that the minimum isolation thickness for heat transfer through conduction is 8mm, through convection is 25mm, and through radiation is 0.4mm. Adequate isolation is necessary to prevent the driver from coming in contact with surfaces that have a temperature exceeding 60oC. By providing the specified thickness of insulation, the heat transfer through different modes can be effectively minimized, ensuring the driver's safety.
5.
Which of the following rules DO NOT come under non-applicable rules for alternative frames?
Correct Answer
C. With proper gusseting and/or triangulation, it is not permissible to fabricate the Side Impact Structural members from more than one piece of tubing.
Explanation
The given statement is a non-applicable rule for alternative frames. It states that it is not allowed to fabricate the Side Impact Structural members from more than one piece of tubing, even with proper gusseting and/or triangulation. This means that the Side Impact Structural members must be made from a single piece of tubing, regardless of any additional reinforcement techniques used.
6.
The average piston speed for a given motorcycle engine undergoing speed test is 914.4m/min and the corresponding speed at the crankshaft was found to be 5000rpm. If the speed of the crankshaft is observed as 7000rpm, what could be the average piston speed?
Correct Answer
A. 1280.16m/min
Explanation
When the speed of the crankshaft increases from 5000rpm to 7000rpm, it implies that the engine is running at a higher speed. As a result, the average piston speed will also increase. Therefore, the correct answer is 1280.16m/min, as it represents the increased average piston speed corresponding to the higher crankshaft speed.
7.
The average piston speed for a given motorcycle engine undergoing speed test is 914.4m/min and the corresponding speed at the crankshaft was found to be 5000rpm. The approximate stroke length of the piston is?
Correct Answer
B. 9cm
Explanation
The average piston speed is calculated by multiplying the stroke length by the speed of the crankshaft. In this case, we are given that the average piston speed is 914.4m/min and the speed of the crankshaft is 5000rpm. To find the stroke length, we can rearrange the formula and solve for it.
Stroke length = average piston speed / speed of crankshaft
Stroke length = 914.4m/min / 5000rpm
Converting rpm to min by dividing by 60:
Stroke length = 914.4m/min / (5000rpm / 60min)
Stroke length = 914.4m/min / 83.33rpm/min
Calculating the stroke length:
Stroke length ≈ 10.97cm
Therefore, the approximate stroke length of the piston is 10cm.
8.
Any portion of the roll bar, roll bar bracing, or frame which might be in contact with the drivers helmet must be covered with padding of a minimum thickness of ___
Correct Answer
D. 0.5 in
Explanation
The correct answer is 0.5 in. The roll bar, roll bar bracing, or frame that may come into contact with the driver's helmet must be covered with padding of at least 0.5 inches in thickness. This is to ensure the driver's safety by providing cushioning and reducing the risk of injury in the event of a collision or impact.
9.
For an FSAE car-
Statement 1- There can be 4 brake systems, 1 on each wheel
Statement 2- There can be 3 brake systems, 2 for the front wheels and 1 for LSD
Statement 3- there can be 2 brake systems, 1 for each LSD
Now which of the following is correct-
Correct Answer
C. All statements are true
Explanation
All statements are true. This is because an FSAE car can have multiple brake systems, depending on the design and requirements. Statement 1 suggests that there can be 4 brake systems, one for each wheel. Statement 2 suggests that there can be 3 brake systems, with 2 for the front wheels and 1 for the Limited Slip Differential (LSD). Statement 3 suggests that there can be 2 brake systems, one for each LSD. Therefore, all three statements can be true depending on the specific configuration of the FSAE car.
10.
The length of the filler neck for a given fuel tank is 174mm and its vertical height is 125mm. The angle of the filler neck w.r.t the horizontal is?
Correct Answer
C. 46 deg
Explanation
Based on the given dimensions, the filler neck has a length of 174mm and a vertical height of 125mm. To find the angle of the filler neck with respect to the horizontal, we can use trigonometry. The tangent of an angle is equal to the ratio of the opposite side to the adjacent side. In this case, the opposite side is the vertical height of 125mm and the adjacent side is the length of 174mm. Therefore, the tangent of the angle is 125/174. Using a calculator, we find that the angle is approximately 46 degrees.