/50 The DIYguru Entrance Test (DET) has begun! Remember to read each question carefully and choose the best answer. Good luck! You can do this! 🚗⚡ Time's Up! The quiz timer has ended. Thank you for participating in the DET Test. Your responses have been recorded. Click Submit to see your score. Great effort, and we hope you learned something new! ⚡🚗 The DIYguru Entrance Test (The DET Test) Welcome to the DIYguru Entrance Test (DET Test)! The DET Test consists of 50 multiple-choice questions (MCQs) designed to assess your knowledge in electrical & mechanical fields. This test will evaluate your eligibility for the DIYguru programs in EV technology, as well as your general technical aptitude. Please read the instructions carefully: - The DET test is of 50 marks total. Each question carries 1 mark. - You will have 25 minutes to complete the quiz, so read each question carefully. - Each question has four options, but only one correct answer. Please select the option that you believe is the most accurate. - The passing score for the DET test is set at 50%. Each correct answer will contribute to your overall score. Make sure to review your answers carefully before submitting the quiz. - At the end of the quiz, you will receive your score along with the number of correct responses (only first response will be counted). Note: Students who perform well in this eligibility exam will get the chance to book an exclusive one-on-one counseling session with an EV expert, based on their DET score. Best of luck! 🚗⚡ Please fill the details: NameEmailPhone NumberAre you a DIYguru/Internshala student?Are you a DIYguru/Internshala student?YesNoPlease select your highest qualification:Please select your highest qualification:M.Tech / M.S / Ph.DB.Tech / B.EB.Sc / DiplomaOthers (e.g., B.A, B.Com, etc.)What is your current status?What is your current status?Working professionalStudentOn a career breakHow did you find us?How did you find us?Google SearchFacebookInstagramFriendsNewspaperOrganisation 1 / 50 1. The condition that results in large quantities of CO emission is? A. Low temperature combustion B. High temperature combustion C. Insufficient air during combustion D. Insufficient fuel during combustion 2 / 50 2. A step-up transformer increases? A. Current B. Voltage C. Power D. Frequency 3 / 50 3. The type of load for which the voltage regulation of a transformer is negative is? A. Resistive B. Inductive C. None of the given options D. Capacitive 4 / 50 4. Three resistances of 10 ohms, 15 ohms, and 30 ohms are connected in parallel. The total resistance of the combination is? A. 10 ohms B. 65 ohms C. 15 ohms D. 5 ohms 5 / 50 5. Which type of heat transfer does not require a medium? A. Radiation B. Convection C. Conduction D. Diffusion 6 / 50 6. For the same peak value, which of the following wave has the least mean value? A. Square wave B. Half wave rectified sine wave C. Sine wave D. Triangular wave 7 / 50 7. The main disadvantage of the Ward Leonard control method is? A. High maintenance cost B. High initial cost C. Low efficiency at light loads D. All of the given options 8 / 50 8. What is the formula for calculating electrical power in a circuit? A. Power = V / I B. Power = V × I C. Power = I × R D. Power = R × V 9 / 50 9. All the rules and laws of D.C. circuit also apply to A.C. circuit containing? A. Inductance only B. All of the given options. C. Resistance only D. Capacitance only 10 / 50 10. The main function of an exhaust muffler is the? A. Reduction of nitrogen oxide in the exhaust gases B. Reduction of the exhaust gas volume C. Optimisation of exhaust efficiency D. Reduction of exhaust noise 11 / 50 11. Which component stores electrical energy in an electric field? A. Inductor B. Capacitor C. Resistor D. Transformer 12 / 50 12. Short circuit test on transformers is conducted to determine? A. Hysteresis losses B. Eddy current losses C. Core losses D. Copper losses 13 / 50 13. Which of the following capacitors is marked for polarity? A. Paper B. Air C. Electrolytic D. Mica 14 / 50 14. Which of the following materials has the least resistivity? A. Lead B. Zinc C. Mercury D. Copper 15 / 50 15. The process of heat transfer through a solid material is called? A. Radiation B. Convection C. Diffusion D. Conduction 16 / 50 16. The instrument used to measure atmospheric pressure is? A. Thermometer B. Hygrometer C. Barometer D. Ammeter 17 / 50 17. What is the primary function of a governor in an engine? A. Increase fuel efficiency B. Control speed C. Reduce friction D. Power generation 18 / 50 18. The function of a governor in automobiles is to? A. Maintain constant engine speed B. Limit the power C. Maximise the fuel economy D. Limit the vehicle speed 19 / 50 19. The insulation on a current-carrying conductor is provided? A. Both of the given factors B. To prevent leakage of current C. To prevent shock D. None of the given factors 20 / 50 20. What is the device called that converts mechanical energy into electrical energy? A. Generator B. Motor C. Transformer D. Capacitor 21 / 50 21. What is the purpose of a flywheel in an engine? A. Increase friction B. Provide lubrication C. Reduce weight D. Store energy 22 / 50 22. 1 volt/metre is same as? A. 1 metre/coulomb B. 1 newton metre C. 1 newton/columb D. 1 joule/coulomb 23 / 50 23. In a series circuit with unequal resistances? A. The highest resistance has the highest voltage drop B. The lowest resistance has the highest current C. The highest resistance has the most current D. The lowest resistance has the highest voltage drop 24 / 50 24. Which of the following components of a D.C. generator plays a vital role for providing direct current of a DC generator? A. Commutator B. Equalizer rings C. Eye bolt D. Dummy coils 25 / 50 25. The capacitors used in single-phase capacitor motors have no? A. Voltage rating B. Dielectric medium C. Polarity marking D. Definite value 26 / 50 26. Specific resistance of a substance is measured in? A. Ω/m B. m/Ω C. Ω-m D. Ω/m² 27 / 50 27. A series motor is best suited for driving? A. Shear and punches B. None of the given options C. Machine tools D. Cranes and hoists 28 / 50 28. In a shunt generator, the voltage build up is generally restricted by? A. Speed limitation B. Saturation of iron C. Insulation restrictions D. Armature heating 29 / 50 29. The starter motor is driven by? A. Chain drive B. Gear drive C. Flat belt drive D. V-belt drive 30 / 50 30. Which law of thermodynamics states that energy cannot be created or destroyed? A. Third law B. Second law C. Zeroth law D. First law 31 / 50 31. Conductance : mho : : ? What can come next? A. Capacitance : henry B. Inductance : farad C. Resistance : ohm D. Lumen : steradian 32 / 50 32. Varistors are? A. Insulators B. Non-linear resistors C. Carbon resistors D. Resistors with zero temperature coefficient 33 / 50 33. For which of the following ampere second could be the unit? A. Energy B. Reluctance C. Power D. Charge 34 / 50 34. When one leg of parallel circuit is opened out the total current will? ( A. Decrease B. No change C. Increase D. Become zero 35 / 50 35. With rise in temperature the resistance of pure metals? A. Remains constant B. Increases C. First increases and then decreases D. Decreases 36 / 50 36. Voltage dependent resistors are used? A. To suppress surges B. For inductive circuits C. As heating elements D. As current stabilizers 37 / 50 37. What is the device used to measure torque in a rotating system? A. Barometer B. Hygrometer C. Tachometer D. Dynamometer 38 / 50 38. Dielectric strength ...... with increasing thickness? A. None of the given options B. Decreases C. Increases D. Remains unaltered 39 / 50 39. What is the term for the distance between two consecutive crests of a wave? A. Frequency B. Wavelength C. Amplitude D. Period 40 / 50 40. The starting winding of a single-phase motor is placed in? A. Field B. Rotor C. Armature D. Stator 41 / 50 41. Which of the following motors would you select for vacuum cleaners? A. Repulsion motor B. Reluctance motor C. Hysteresis motor D. Universal motor 42 / 50 42. The speed of a D.C. shunt motor can be increased by? A. Reducing the resistance in the field circuit B. Increasing the resistance in armature circuit C. Reducing the resistance in the armature circuit D. Increasing the resistance in field circuit 43 / 50 43. In a DC generator, the iron losses mainly take place in? A. Yoke B. Armature rotors C. Commutator D. Armature conductors 44 / 50 44. A transformer can have regulation closer to zero? A. On overload B. On full-load C. On zero power factor D. On leading power factor 45 / 50 45. The retardation test is applicable to shunt motors and generators and is used to find? A. The eddy current losses B. The copper losses C. The friction losses D. The stray losses 46 / 50 46. Which of the following motors, on removal of load, will run at the highest speed? A. Series motor B. Cumulative compound C. Shunt motor D. Differential compound 47 / 50 47. The efficiency of a machine is defined as? A. Output/Input B. Output × Input C. Input/Output D. Input × Output 48 / 50 48. Which type of stress is produced in a material when it is compressed? A. Bending stress B. Compressive stress C. Tensile stress D. Shear stress 49 / 50 49. In an electrical circuit, what is the function of a fuse? A. Increase current B. Protect the circuit C. Stabilize voltage D. Decrease power 50 / 50 50. In an electric kettle, water boils in 10 minutes. It is required to boil the water in 5 minutes, using the same supply mains? A. Length of heating element has no effect on heating of water B. None of the given factors C. Length of heating element should be increased D. Length of heating element should be decreased Your score is 0%
The DIYguru Entrance Test (DET) has begun!
Remember to read each question carefully and choose the best answer. Good luck!
You can do this! 🚗⚡
Time's Up!
The quiz timer has ended. Thank you for participating in the DET Test. Your responses have been recorded.
Click Submit to see your score. Great effort, and we hope you learned something new! ⚡🚗
The DIYguru Entrance Test (The DET Test)
The DET Test consists of 50 multiple-choice questions (MCQs) designed to assess your knowledge in electrical & mechanical fields. This test will evaluate your eligibility for the DIYguru programs in EV technology, as well as your general technical aptitude.
Please read the instructions carefully:
- The DET test is of 50 marks total. Each question carries 1 mark.
- You will have 25 minutes to complete the quiz, so read each question carefully.
- Each question has four options, but only one correct answer. Please select the option that you believe is the most accurate.
- The passing score for the DET test is set at 50%. Each correct answer will contribute to your overall score. Make sure to review your answers carefully before submitting the quiz.
- At the end of the quiz, you will receive your score along with the number of correct responses (only first response will be counted).
Note: Students who perform well in this eligibility exam will get the chance to book an exclusive one-on-one counseling session with an EV expert, based on their DET score.
Best of luck! 🚗⚡
Please fill the details:
1 / 50
1. The condition that results in large quantities of CO emission is?
2 / 50
2. A step-up transformer increases?
3 / 50
3. The type of load for which the voltage regulation of a transformer is negative is?
4 / 50
4. Three resistances of 10 ohms, 15 ohms, and 30 ohms are connected in parallel. The total resistance of the combination is?
5 / 50
5. Which type of heat transfer does not require a medium?
6 / 50
6. For the same peak value, which of the following wave has the least mean value?
7 / 50
7. The main disadvantage of the Ward Leonard control method is?
8 / 50
8. What is the formula for calculating electrical power in a circuit?
9 / 50
9. All the rules and laws of D.C. circuit also apply to A.C. circuit containing?
10 / 50
10. The main function of an exhaust muffler is the?
11 / 50
11. Which component stores electrical energy in an electric field?
12 / 50
12. Short circuit test on transformers is conducted to determine?
13 / 50
13. Which of the following capacitors is marked for polarity?
14 / 50
14. Which of the following materials has the least resistivity?
15 / 50
15. The process of heat transfer through a solid material is called?
16 / 50
16. The instrument used to measure atmospheric pressure is?
17 / 50
17. What is the primary function of a governor in an engine?
18 / 50
18. The function of a governor in automobiles is to?
19 / 50
19. The insulation on a current-carrying conductor is provided?
20 / 50
20. What is the device called that converts mechanical energy into electrical energy?
21 / 50
21. What is the purpose of a flywheel in an engine?
22 / 50
22. 1 volt/metre is same as?
23 / 50
23. In a series circuit with unequal resistances?
24 / 50
24. Which of the following components of a D.C. generator plays a vital role for providing direct current of a DC generator?
25 / 50
25. The capacitors used in single-phase capacitor motors have no?
26 / 50
26. Specific resistance of a substance is measured in?
27 / 50
27. A series motor is best suited for driving?
28 / 50
28. In a shunt generator, the voltage build up is generally restricted by?
29 / 50
29. The starter motor is driven by?
30 / 50
30. Which law of thermodynamics states that energy cannot be created or destroyed?
31 / 50
31. Conductance : mho : : ? What can come next?
32 / 50
32. Varistors are?
33 / 50
33. For which of the following ampere second could be the unit?
34 / 50
34. When one leg of parallel circuit is opened out the total current will? (
35 / 50
35. With rise in temperature the resistance of pure metals?
36 / 50
36. Voltage dependent resistors are used?
37 / 50
37. What is the device used to measure torque in a rotating system?
38 / 50
38. Dielectric strength ...... with increasing thickness?
39 / 50
39. What is the term for the distance between two consecutive crests of a wave?
40 / 50
40. The starting winding of a single-phase motor is placed in?
41 / 50
41. Which of the following motors would you select for vacuum cleaners?
42 / 50
42. The speed of a D.C. shunt motor can be increased by?
43 / 50
43. In a DC generator, the iron losses mainly take place in?
44 / 50
44. A transformer can have regulation closer to zero?
45 / 50
45. The retardation test is applicable to shunt motors and generators and is used to find?
46 / 50
46. Which of the following motors, on removal of load, will run at the highest speed?
47 / 50
47. The efficiency of a machine is defined as?
48 / 50
48. Which type of stress is produced in a material when it is compressed?
49 / 50
49. In an electrical circuit, what is the function of a fuse?
50 / 50
50. In an electric kettle, water boils in 10 minutes. It is required to boil the water in 5 minutes, using the same supply mains?
Your score is
