4.1 Which ONE of the following pieces of equipment is used to set the wheel alignment of a motor vehicle?
A - NSC Mechanical Technology Automotive - Question 4 - 2018 - Paper 1
Question 4
4.1 Which ONE of the following pieces of equipment is used to set the wheel alignment of a motor vehicle?
A. Pressure tester?
B. Torsion tester
C. Bubble gauge
D. W... show full transcript
Worked Solution & Example Answer:4.1 Which ONE of the following pieces of equipment is used to set the wheel alignment of a motor vehicle?
A - NSC Mechanical Technology Automotive - Question 4 - 2018 - Paper 1
Step 1
Which ONE of the following pieces of equipment is used to set the wheel alignment of a motor vehicle?
96%
114 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
The correct answer is A. Pressure tester, as it is specifically used for checking the pressure levels required for proper wheel alignment.
Step 2
What is the purpose of a wheel balancer?
99%
104 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
The purpose of a wheel balancer is to balance B. the wheels for static and dynamic balance, ensuring stability and even wear.
Step 3
Identify the type of supercharger shown in FIGURE 4.3 below.
96%
101 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
The supercharger shown in Figure 4.3 is the C. Centrifugal supercharger, which is commonly used for forced induction in engines.
Step 4
The power of an engine may be defined as …
98%
120 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
The power of an engine can be defined as B. a force that overcomes resistance and causes movement, which quantifies the engine's ability to do work.
Step 5
What will be the brake power of an engine if the engine develops torque of 180 Nm at 3 000 r/min?
97%
117 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
To calculate the brake power, use the formula:
ext{Power (kW)} = rac{ ext{Torque (Nm)} imes ext{RPM}}{9.5488}
Substituting in the values, we find:
ext{Power} = rac{180 imes 3000}{9.5488} = 56.55 kW
Thus, the answer is C. 56.55 kW.
Step 6
The relationship between the total volume of a cylinder when the piston is at bottom dead centre to the combustion chamber volume in the cylinder is known as the …
97%
121 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
This relationship is defined as A. compression ratio, which compares the volume of the cylinder when the piston is at the bottom dead centre to that at the top dead centre.
Step 7
Which device controls the modern electronic automatic transmission of a vehicle?
96%
114 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
The device that controls modern electronic automatic transmission is A. Electronic control unit, which manages the transmission system effectively.
Step 8
What is the effect of the gear ratio on the road speed of a motor vehicle?
99%
104 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
A higher gear ratio increases the road speed, thus the answer is C. A higher gear ratio increases the road speed. It allows the vehicle to cover more distance with less engine effort.
Step 9
What type of gear train is shown in FIGURE 4.10 below?
96%
101 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
The gear train shown in Figure 4.10 is classified as A. Epicyclic gear train, often used in automatic transmissions.
Step 10
What is the effect of a large positive caster angle on the wheels of a vehicle?
98%
120 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
The effect of a large positive caster angle is A. The pressure increases, which results in improved directional stability.
Step 11
What is the definition of static balance of a wheel and tyre assembly?
97%
117 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
Static balance can be defined as D. Equal distribution of all weight, essential for smooth rotation and stability.
Step 12
Which exhaust emission control device is used to convert toxic gases and pollutants to less toxic gases from the exhaust gases of an internal combustion engine?
97%
121 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
The device used for this purpose is A. Catalytic converter, which reduces harmful emissions from combustion engines.
Step 13
Which ONE of the following safety measures must be taken into consideration when testing or repairing an alternator?
96%
114 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
The safety measure to consider is A. Always connect the positive and negative cables of the tester to the relevant poles of the battery, to ensure safe operation.
