DIYguru® Entrance Test for admission into Electric Vehicle PG Certification Programme Govt. (ASDC & AICTE) approved Program
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Answered
Review
Question 1 of 45
1. Question
1 points
Answer in True/False.
i) High power motors cannot be designed for lower voltages.
ii) In fixed gear system, design of motor is very important.
iii) Efficiency in variable gear system is high
Correct
Incorrect
Question 2 of 45
2. Question
1 points
The capacity of lead acid cell is measured in
Correct
Incorrect
Question 3 of 45
3. Question
1 points
Match the Following:
Correct
Incorrect
Question 4 of 45
4. Question
1 points
The direction of speed of BLDC motor can be changed by
Correct
Incorrect
Question 5 of 45
5. Question
1 points
Storage batteries are rated according to
Correct
Incorrect
Question 6 of 45
6. Question
1 points
Moment of inertia of a wheel is 1000 kgm2 . At a given instant, its angular velocity is 10 rad/sec. After the wheel rotates through an angle of 100 radians, the angular velocity of the wheel is 100 rad/sec. The torque applied on wheel in Nm is
Correct
Incorrect
Question 7 of 45
7. Question
1 points
Due to low inertia, BLDC motors have
Correct
Incorrect
Question 8 of 45
8. Question
1 points
Consider a DC motor with armature voltage = 125 V and armature resistance = 0.4 ohm. It is running at 1800 rpm under no load condition. The rated armature current is 30 A. Calculate the rated speed of the motor
Correct
Incorrect
Question 9 of 45
9. Question
1 points
If the wheel diameter, gear ratio and speed of the vehicle are all doubled, what will be its effect on the rpm of the electric motor? Choose the correct option
Correct
Incorrect
Question 10 of 45
10. Question
1 points
When force and displacement are in the same direction, the kinetic energy of the body ___________?
Correct
Explanation: When force and displacement are in the same direction, the kinetic energy of the body increases. The increase in kinetic energy is equal to the work done on the body.
Incorrect
Explanation: When force and displacement are in the same direction, the kinetic energy of the body increases. The increase in kinetic energy is equal to the work done on the body.
Question 11 of 45
11. Question
1 points
When we steer a bicycle round a bend with both our hands on the handlebars, we apply?
Correct
Explanation: A pair of equal and opposite forces acting on a body along two different lines of action constitutes a couple. A Couple has a turning effect, but no resultant force acts on a body. When we steer a bicycle round a bend with both our hands on the handlebars, we add a couple.
Incorrect
Explanation: A pair of equal and opposite forces acting on a body along two different lines of action constitutes a couple. A Couple has a turning effect, but no resultant force acts on a body. When we steer a bicycle round a bend with both our hands on the handlebars, we add a couple.
Question 12 of 45
12. Question
1 points
Which of the following is also known as the law of inertia?
Correct
Explanation: According to Newton’s first law of motion, everybody continues in its state of rest or uniform motion unless an external force acts upon it. This inability of a body to change its state of rest or of uniform motion along a straight path is called inertia of a body. Hence the first law of motion is also called a law of inertia.
Incorrect
Explanation: According to Newton’s first law of motion, everybody continues in its state of rest or uniform motion unless an external force acts upon it. This inability of a body to change its state of rest or of uniform motion along a straight path is called inertia of a body. Hence the first law of motion is also called a law of inertia.
Question 13 of 45
13. Question
1 points
When a spring is compressed or stretched, the potential energy of the spring?
Correct
Explanation: The potential energy of a spring increases when it is compressed or stretched because work is done on it when it is compressed or stretched.
Incorrect
Explanation: The potential energy of a spring increases when it is compressed or stretched because work is done on it when it is compressed or stretched.
Question 14 of 45
14. Question
1 points
What happens to the potential energy when one proton and one electron are brought close together?
Correct
Explanation: The potential energy gets decreased when a proton and an electron are brought close because the work is done by the force of attraction between them.
Incorrect
Explanation: The potential energy gets decreased when a proton and an electron are brought close because the work is done by the force of attraction between them.
Question 15 of 45
15. Question
1 points
What sort of energy does flying bird possess?
Correct
Explanation: A flying bird possesses both kinetic and potential energies because it is at a certain height above the ground and moving with a certain velocity.
Incorrect
Explanation: A flying bird possesses both kinetic and potential energies because it is at a certain height above the ground and moving with a certain velocity.
Question 16 of 45
16. Question
1 points
The scientific principle that makes hydraulic systems possible is
Correct
Pascal’s principle is the basis of hydraulic system which states that the water exerts pressure in all direction.
Incorrect
Pascal’s principle is the basis of hydraulic system which states that the water exerts pressure in all direction.
Question 17 of 45
17. Question
1 points
Magnetic lines of force of a bar magnet do not intersect because
Correct
A point always has a single net magnetic field
Incorrect
A point always has a single net magnetic field
Question 18 of 45
18. Question
1 points
The magnetism of a magnet is due to
Correct
Spin motion of electrons
Incorrect
Spin motion of electrons
Question 19 of 45
19. Question
1 points
What does the muffler do?
Correct
Incorrect
Question 20 of 45
20. Question
1 points
What is the purpose of this?
Correct
Incorrect
Question 21 of 45
21. Question
1 points
What Is this?
Correct
Incorrect
Question 22 of 45
22. Question
1 points
What Does this Do?
Correct
Incorrect
Question 23 of 45
23. Question
1 points
What Is this ?
Correct
Incorrect
Question 24 of 45
24. Question
1 points
Identify This
Correct
Incorrect
Question 25 of 45
25. Question
1 points
What is the purpose of this?
Correct
A radiator is a type of heat exchanger. It is designed to transfer heat from the hot coolant that flows through it to the air blown through it by the fan.
Incorrect
A radiator is a type of heat exchanger. It is designed to transfer heat from the hot coolant that flows through it to the air blown through it by the fan.
Question 26 of 45
26. Question
1 points
Identify this object? it is found in front of the engine.
Correct
Incorrect
Question 27 of 45
27. Question
1 points
What recharges the battery while your car is running?
Correct
The battery is charged by an alternator on modern cars, or by a dynamo on earlier ones. Both are types of generator, and are driven by a belt from the engine .
Incorrect
Question 28 of 45
28. Question
1 points
The Hybrid Electric Vehicle consists of :
Correct
Incorrect
Question 29 of 45
29. Question
1 points
Which of the following is NOT the type of Hybrid Vehicle?
Correct
Incorrect
Question 30 of 45
30. Question
1 points
What affect do petrol and diesel engines have on the environment? Click on the correct statement
Correct
Incorrect
Question 31 of 45
31. Question
1 points
By what name are traditionally powered vehicles, equipped with a start-stop system, sometimes also known?
Correct
Incorrect
Question 32 of 45
32. Question
1 points
Which vehicle uses a high-voltage battery?
Correct
Incorrect
Question 33 of 45
33. Question
1 points
Which of the following vehicles produces zero emissions?
Correct
Incorrect
Question 34 of 45
34. Question
1 points
Which vehicle has the smallest number of principle components?
Correct
Incorrect
Question 35 of 45
35. Question
1 points
What is meant by the term regeneration?
Correct
Incorrect
Question 36 of 45
36. Question
1 points
What makes the risk of an electric shock from a high-voltage battery possibly more dangerous than that from an AC circuit?
Correct
Incorrect
Question 37 of 45
37. Question
1 points
What voltage is likely to be available from the battery of an electric vehicle or hybrid?
Correct
Incorrect
Question 38 of 45
38. Question
1 points
In an electric car, the accelerator pedal hooks to a pair of these to relay the information to the controller about how much power it should deliver.
Correct
The accelerator pedal hooks to a pair of potentiometers (variable resistors), and these potentiometers provide the signal that tells the controller how much power it is supposed to deliver. The controller can deliver zero power (when the car is stopped), full power (when the driver floors the accelerator pedal), or any power level in between.
Incorrect
The accelerator pedal hooks to a pair of potentiometers (variable resistors), and these potentiometers provide the signal that tells the controller how much power it is supposed to deliver. The controller can deliver zero power (when the car is stopped), full power (when the driver floors the accelerator pedal), or any power level in between.
Question 39 of 45
39. Question
1 points
How does running a car air conditioner on “max” affect fuel economy?
Correct
Running any electrical accessory reduces fuel economy, having the air conditioner on the maximum setting can cut efficiency 5 to 25 percent, according to the U.S. Department of Energy.
Incorrect
Running any electrical accessory reduces fuel economy, having the air conditioner on the maximum setting can cut efficiency 5 to 25 percent, according to the U.S. Department of Energy.
Question 40 of 45
40. Question
1 points
When force and displacement are in the same direction, the kinetic energy of the body ___________?
Correct
Explanation: When force and displacement are in the same direction, the kinetic energy of the body increases. The increase in kinetic energy is equal to the work done on the body.
Incorrect
Explanation: When force and displacement are in the same direction, the kinetic energy of the body increases. The increase in kinetic energy is equal to the work done on the body.
Question 41 of 45
41. Question
1 points
When we steer a bicycle round a bend with both our hands on the handlebars, we apply?
Correct
Explanation: A pair of equal and opposite forces acting on a body along two different lines of action constitutes a couple. A Couple has a turning effect, but no resultant force acts on a body. When we steer a bicycle round a bend with both our hands on the handlebars, we add a couple.
Incorrect
Explanation: A pair of equal and opposite forces acting on a body along two different lines of action constitutes a couple. A Couple has a turning effect, but no resultant force acts on a body. When we steer a bicycle round a bend with both our hands on the handlebars, we add a couple.
Question 42 of 45
42. Question
1 points
Which of the following is also known as the law of inertia?
Correct
Explanation: According to Newton’s first law of motion, everybody continues in its state of rest or uniform motion unless an external force acts upon it. This inability of a body to change its state of rest or of uniform motion along a straight path is called inertia of a body. Hence the first law of motion is also called a law of inertia.
Incorrect
Explanation: According to Newton’s first law of motion, everybody continues in its state of rest or uniform motion unless an external force acts upon it. This inability of a body to change its state of rest or of uniform motion along a straight path is called inertia of a body. Hence the first law of motion is also called a law of inertia.
Question 43 of 45
43. Question
1 points
When a spring is compressed or stretched, the potential energy of the spring?
Correct
Explanation: The potential energy of a spring increases when it is compressed or stretched because work is done on it when it is compressed or stretched.
Incorrect
Explanation: The potential energy of a spring increases when it is compressed or stretched because work is done on it when it is compressed or stretched.
Question 44 of 45
44. Question
1 points
What happens to the potential energy when one proton and one electron are brought close together?
Correct
Explanation: The potential energy gets decreased when a proton and an electron are brought close because the work is done by the force of attraction between them.
Incorrect
Explanation: The potential energy gets decreased when a proton and an electron are brought close because the work is done by the force of attraction between them.
Question 45 of 45
45. Question
1 points
Frenchmen Gustave Truave developed first Electric Vehicle in the year