# Physics Exam Quiz: Test Your Basics!

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Catherine Halcomb
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Quizzes Created: 1428 | Total Attempts: 5,984,636
Questions: 15 | Attempts: 177

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Science has played a significant role in development. To grasp basic science knowledge, your concepts on physics should be clear. Take this quiz to test your learning about different physics rules and theories. Read the questions carefully and answer. All the best!

• 1.

### For the front hoop bracings, one of the bracings is a pipe of diameter 29.27mm and the other is a tube of diameter 30.94mm. They have the same specifications. Are they in compliance with the rules?

• A.

Yes

• B.

No

• C.

Maybe

• D.

Can't say

C. Maybe
Explanation
The question provides information about the front hoop bracings, stating that one is a pipe with a diameter of 29.27mm and the other is a tube with a diameter of 30.94mm. It also mentions that they have the same specifications. However, it does not specify what the rules or compliance requirements are. Therefore, without knowing the specific rules or criteria that need to be met, it is impossible to determine whether the bracings are in compliance or not.

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• 2.

### The distance between a topmost point on the front hoop(on the centreline of the tube) and the point where the front hoop bracing is connected to the front hoop is 49 mm. When a driver has normally seated, the distance between the line drawn from the top of the main hoop to the front hoop's top is 75 mm. The main hoop is inclined 0.0827 radians in the direction of the driving wheels and the main hoop bracing is inclined 0.6454 radians in the opposite direction of the driving wheels. Will this pass TI?

• A.

Yes

• B.

No

• C.

Maybe

• D.

Can't say

C. Maybe
Explanation
The question provides information about the distances and inclinations of the main hoop and front hoop in a vehicle. However, it does not provide any specific criteria or regulations for passing TI (Technical Inspection). Therefore, without additional information about the TI requirements, it is uncertain whether the given measurements and inclinations would pass TI. Hence, the answer is "Maybe".

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• 3.

### Two team members are presenting the BPP. After the introduction, team member A forgets all his text. Luckily, team member B can finish the presentation by herself. After the presentation is completed, the competition judges have a few questions for the team members. Which statement is correct?

• A.

None of the team members may answer questions from the judges

• B.

Both team members may answer questions from the judges.

• C.

Only team members B may answer questions from the judges

• D.

Only team members A may answer a question from the judges

B. Both team members may answer questions from the judges.
Explanation
Both team members may answer questions from the judges because even though team member A forgot their text, team member B was able to finish the presentation by herself. This implies that both team members are knowledgeable about the topic and capable of answering questions.

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• 4.

0
• 5.

### A team has decided to use a metal matrix compound of mild steel in the vehicle. Does this classify as an alternative material?

• A.

Yes

• B.

No

• C.

Maybe

• D.

Can't say

A. Yes
Explanation
Using a metal matrix compound of mild steel in the vehicle can be classified as an alternative material because it is different from the traditional material typically used in vehicles, which is usually just mild steel. The team's decision to use this alternative material suggests that they are exploring different options to enhance the vehicle's performance or characteristics.

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• 6.

### Which element is not allowed to be contained in AIRs?

• A.

Phosphorous

• B.

Silicon

• C.

Iron

• D.

Mercury

• E.

Helium

D. Mercury
Explanation
Mercury is not allowed to be contained in AIRs because it is a toxic and volatile element. It can easily vaporize and become a hazardous gas at room temperature. Therefore, it is not safe to include mercury in the composition of AIRs.

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• 7.

### All electrically conductive parts of the vehicle (e.g., parts made of steel, (anodized) aluminum, any other metal parts, etc.) which are within 100mm of any tractive system or GLV component, and any driver harness mounting points, seat mounting points, and driver controls must have a resistance to GLV system ground below.

• A.

300 mOhms (measured with a current of 1A)

• B.

300 mOhms (measured with a current of 0.5A)

• C.

5 ohm

A. 300 mOhms (measured with a current of 1A)
Explanation
All electrically conductive parts of the vehicle that are within a certain proximity to certain components must have a resistance to the GLV system ground below a certain threshold. The correct answer is 300 mOhms (measured with a current of 1A), which means that the resistance of these parts should be below 300 mOhms when measured with a current of 1A. This ensures that the vehicle's electrical system functions properly and safely.

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• 8.

### A steady DC current is flowing through a coil with an inductance of 248mH. The stored energy in the magnetic field is 431J. By how much does the current have to be increased, if the stored energy should be increased by 300J? All options given in Amps

• A.

17.824

• B.

76.78

• C.

17.82

• D.

17.822

• E.

76.77

• F.

76.87

A. 17.824
Explanation
The stored energy in a magnetic field is given by the formula E = 1/2 * L * I^2, where E is the energy, L is the inductance, and I is the current. In this case, the initial energy is 431J and the initial current is unknown. We can rearrange the formula to solve for the initial current: I = sqrt(2E/L). Plugging in the values, we get I = sqrt(2*431J/248mH). Solving this equation gives us the initial current as approximately 17.824 Amps. To increase the stored energy by 300J, we need to find the new current. Plugging in the new energy value of 731J into the formula, we get I = sqrt(2*731J/248mH), which gives us the new current as approximately 22.076 Amps. Therefore, the current needs to be increased by approximately 4.252 Amps.

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• 9.

### What is the peak voltage value of a single-phase sinusoidal 600V AC RMS signal?

• A.

832.74

• B.

848.53

• C.

858.23

• D.

838.91

B. 848.53
Explanation
The peak voltage value of a single-phase sinusoidal AC signal can be calculated by multiplying the RMS value by the square root of 2. In this case, the RMS value is 600V, so the peak voltage value would be 600V * âˆš2 = 848.53V.

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• 10.

### Opening the shutdown circuit must occur if the implausibility is persistent for more than ___ ms.

500
Explanation
If the implausibility persists for more than 500 ms, it is necessary to open the shutdown circuit. This means that if the issue or problem continues for longer than half a second, the shutdown circuit needs to be activated to prevent further damage or malfunction. This is likely a safety mechanism to protect the system from any potential harm that may occur if the implausibility persists for an extended period of time.

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• 11.

### There are two aircraft made in the year 1920 the propeller of aircraft 1 is rotating in an anti-clockwise direction while the propeller of the other rotates in a clockwise direction. The aircraft takes right turn to what will happen to aircraft 1 and 2.

• A.

1 and 2 both will move up

• B.

1 will move up while 2 will move down

• C.

1 will move down while 2 will move up

• D.

1 and 2 both will move down

B. 1 will move up while 2 will move down
Explanation
Since the propeller of aircraft 1 is rotating in an anti-clockwise direction, it will create a force that pushes the aircraft upwards. On the other hand, the propeller of aircraft 2 is rotating in a clockwise direction, which will create a force that pushes the aircraft downwards. Therefore, aircraft 1 will move up while aircraft 2 will move down.

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• 12.

### For business plan presentation a team was judged by a panel of three judges. the judge 1 awards 5,6,12,6,7,7,8,7 and 4 score for BPES, Novelty ,content,Finances,deep dive topic,demonstration,delivery,questions and general impression. The 2nd judge awards 7,7,13,6,5,7,9,7 and 5 score for BPES, Novelty ,content,Finances,deep dive topic,demonstration,delivery,questions and general impression while the 3rd judge awards 4,7,9,6,9,7,5,7 and 4 score for BPES, Novelty ,content,Finances,deep dive topic,demonstration,delivery,questions and general impression. If the highest score of the team participating in the finals is 72, what will be the score of the team in BPP?

• A.

60.28

• B.

58.98

• C.

57.68

• D.

62.76

• E.

Cannot be determined

E. Cannot be determined
• 13.

### A solid sphere of mass m and radius r is resting on a horizontal surface.A horizontal impulse of E is applied at a height h from the ground. Find the value of h so that sphere performs pure rolling motion after it has been struck.

7r/5
Explanation
To achieve pure rolling motion, the sphere must have both translational and rotational motion simultaneously. This means that the impulse applied at height h must provide enough torque to overcome the initial angular momentum of the sphere. The angular momentum depends on the moment of inertia, which for a solid sphere is (2/5)mr^2, and the angular velocity. Since the sphere is at rest initially, the angular velocity is zero. By applying the impulse at a height of 7r/5, the torque produced will be sufficient to set the sphere into pure rolling motion, with no slipping.

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• 14.

### An extra member is added from the main hoop to the front hoop (above the side impact structure). Percy is the shortest driver of the team. The shaded part depicts the bodywork. Will this chassis pass TI?

• A.

Yes

• B.

No

• C.

Maybe

• D.

Can't say

B. No
Explanation
The addition of an extra member from the main hoop to the front hoop above the side impact structure suggests that the chassis has been modified. However, the fact that Percy is the shortest driver of the team implies that the modification may not be suitable for all drivers. Therefore, it is likely that the chassis will not pass TI (Technical Inspection) as it may not meet the necessary safety requirements for all drivers.

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• 15.

### Which one of the following is the right fit type for the following 1- Ball bearing into a bore 2- Tire on the rim 3- Lugnuts on studs

• A.

1- Interference, 2-Loose, 3-Loose

• B.

1-Loose, 2-Interference, 3-Loose

• C.

1-Interference, 2-Interference, 3-Loose

• D.

1-Interference, 2-Interference, 3-Line on line

• E.

1-Loose, 2-Loose, 3-Line on line

D. 1-Interference, 2-Interference, 3-Line on line
Explanation
When fitting a ball bearing into a bore, an interference fit is required to ensure a tight and secure connection. Similarly, when fitting a tire on a rim, an interference fit is necessary to prevent the tire from slipping off. However, when fitting lugnuts on studs, a line on line fit is preferred as it allows for easy installation and removal of the lugnuts without compromising the stability of the connection.

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• Current Version
• Mar 21, 2023
Quiz Edited by
ProProfs Editorial Team
• Mar 09, 2021
Quiz Created by
Catherine Halcomb

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