MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
This section includes 50 Mcqs, each offering curated multiple-choice questions to sharpen your Cummins knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
How many ways to start services? |
| A. | Started |
| B. | Bound |
| C. | a & b |
| D. | None of the above. |
| Answer» D. None of the above. | |
| 2. |
Definition of Loader? |
| A. | loaders make it easy to asynchronously load data in an activity or fragment. |
| B. | loaders make it easy to synchronously load data in an activity or fragment. |
| C. | loaders does not make it easy to asynchronously load data in an activity or fragment. |
| D. | None of the above |
| Answer» B. loaders make it easy to synchronously load data in an activity or fragment. | |
| 3. |
What is the difference between Activity context and Application Context? |
| A. | The Activity instance is tied to the lifecycle of an Activity. while the application instance is tied to the lifecycle of the application, |
| B. | The Activity instance is tied to the lifecycle of the application, while the application instance is tied to the lifecycle of an Activity. |
| C. | The Activity instance is tied to the lifecycle of the Activity, while the application instance is tied to the lifecycle of an application. |
| D. | None of the above |
| Answer» B. The Activity instance is tied to the lifecycle of the application, while the application instance is tied to the lifecycle of an Activity. | |
| 4. |
You can shut down an activity by calling its _______ method |
| A. | onDestory() |
| B. | finishActivity() |
| C. | finish() |
| D. | None of the above |
| Answer» D. None of the above | |
| 5. |
Which are the screen sizes in Android? |
| A. | small |
| B. | normal |
| C. | large |
| D. | All of the above |
| Answer» E. | |
| 6. |
Which of the important device characteristics that you should consider as you design and develop your application? |
| A. | Screen size and density |
| B. | Input configurations |
| C. | Device features |
| D. | All of the above |
| Answer» E. | |
| 7. |
When contentProvider would be activated? |
| A. | Using Intent |
| B. | Using SQLite |
| C. | Using ContentResolver |
| D. | None of the above |
| Answer» D. None of the above | |
| 8. |
Which component is not activated by an Intent? |
| A. | Activity |
| B. | Services |
| C. | ContentProvider |
| D. | BroadcastReceiver |
| Answer» D. BroadcastReceiver | |
| 9. |
What are the indirect Direct subclasses of Services? |
| A. | RecognitionService |
| B. | RemoteViewsService |
| C. | SpellCheckerService |
| D. | InputMethodService |
| Answer» E. | |
| 10. |
Parent class of Service? |
| A. | Object |
| B. | Context |
| C. | ContextWrapper |
| D. | ContextThemeWrapper |
| Answer» D. ContextThemeWrapper | |
| 11. |
What are the indirect Direct subclasses of Activity? |
| A. | LauncherActivity |
| B. | PreferenceActivity |
| C. | TabActivity |
| D. | All the above |
| Answer» E. | |
| 12. |
What are the Direct subclasses of Activity? |
| A. | AccountAuthenticatorActivity |
| B. | ActivityGroup |
| C. | ExpandableListActivity |
| D. | all the above |
| Answer» E. | |
| 13. |
Parent class of Activity? |
| A. | Object |
| B. | Context |
| C. | ActivityGroup |
| D. | ContextThemeWrapper |
| Answer» E. | |
| 14. |
Once installed on a device, each Android application lives in_______? |
| A. | device memory |
| B. | external memory |
| C. | security sandbox |
| D. | None of the above |
| Answer» D. None of the above | |
| 15. |
The term used to designate electrical pressure is: |
| A. | voltage |
| B. | current |
| C. | resistance |
| D. | conductance |
| Answer» B. current | |
| 16. |
A switch is a device that: |
| A. | short circuits complex circuits |
| B. | holds a fuse |
| C. | has double poles |
| D. | opens or completes a current path |
| Answer» E. | |
| 17. |
Which unit of charge contains 6.25 × 10^18 electrons? |
| A. | An ampere |
| B. | A coulomb |
| C. | A volt |
| D. | A joule |
| Answer» C. A volt | |
| 18. |
What are the unit and symbol for current? |
| A. | Ampere, A |
| B. | Ampere, Q |
| C. | Ampere, l |
| D. | Coulomb, I |
| Answer» D. Coulomb, I | |
| 19. |
Current equals: |
| A. | coulombs × time |
| B. | coulombs / time |
| C. | voltage × time |
| D. | voltage / time |
| Answer» C. voltage × time | |
| 20. |
A voltmeter is used: |
| A. | to measure current |
| B. | in series with the circuit |
| C. | in parallel with the circuit |
| D. | to measure coulombs |
| Answer» D. to measure coulombs | |
| 21. |
The negative and positive charge symbols are assigned (in that order) to the: |
| A. | proton and electron |
| B. | electron and proton |
| C. | atom and nucleus |
| D. | electron and element |
| Answer» C. atom and nucleus | |
| 22. |
How is the layer of P-substrate, that intimate the provision of channel for electrons by touching substrate to metal -oxide film with the semantic behaviour of N-channel, can be referred as? |
| A. | N-type Inversion layer |
| B. | P-type Inversion layer |
| C. | Both |
| D. | None of the above |
| Answer» B. P-type Inversion layer | |
| 23. |
In practical applications, battery voltage: |
| A. | is restored as soon as disconnect occurs |
| B. | is lowered as the load increases |
| C. | may be stored indefinitely |
| D. | will be reduced to zero as power is drawn |
| Answer» C. may be stored indefinitely | |
| 24. |
Primary batteries, unlike secondary batteries, may be: |
| A. | charged once |
| B. | used once |
| C. | recharged over and over |
| D. | stored indefinitely |
| Answer» C. recharged over and over | |
| 25. |
Which action plays a significant role in enhancing the conductivity of channel by inducing the free electrons especially in enhancement mode of N-channel MOSFET? |
| A. | Inductor action |
| B. | Capacitor action |
| C. | Resistive action |
| D. | Filter action |
| Answer» C. Resistive action | |
| 26. |
The input current of JFET and MOSFET are basically the leakage currents of ______ & ______ respectively |
| A. | forward-biased PN junction & capacitor |
| B. | reversed-biased PN junction & capacitor |
| C. | forward-biased PN junction & inductor |
| D. | reversed-biased PN junction & inductor |
| Answer» C. forward-biased PN junction & inductor | |
| 27. |
Which resistive component is designed to be temperature sensitive? |
| A. | Thermistor |
| B. | Rheostat |
| C. | Potentiometer |
| D. | Photoconductive cell |
| Answer» B. Rheostat | |
| 28. |
An atom’s atomic number is determined by the number of: |
| A. | neutrons minus protons |
| B. | protons |
| C. | electrons |
| D. | neutrons |
| Answer» C. electrons | |
| 29. |
What is the color code for a 220 omega 5% resistor? |
| A. | Red, Red, Brown, Gold |
| B. | Orange, Orange, Black, Gold |
| C. | Red, Red, Black, Gold |
| D. | Red, Red, Brown, Silver |
| Answer» B. Orange, Orange, Black, Gold | |
| 30. |
FETs are widely applicable in oscilloscopes and voltmeters as an input amplifier as compared to bipolar transistors due to ______. |
| A. | ability of minimizing the loading effect with high input resistance |
| B. | ability of maximizing the loading effect with high input resistance |
| C. | ability of minimizing the loading effect with low input resistance |
| D. | ability of maximizing the loading effect with low input resistance |
| Answer» B. ability of maximizing the loading effect with high input resistance | |
| 31. |
How does the FET operate before the pinch-off region with small value of drain-to-source voltage in accordance to the control of drain-to-source resistance by the bias voltage? |
| A. | As a Voltage Controlled Resistor |
| B. | As a Voltage Dependent Resistor |
| C. | As a Voltage-Variable Resistor |
| D. | All of the above |
| Answer» E. | |
| 32. |
What is the major functioning role of VVR in the multistage AGC amplifier circuit during an increment in the signal level? |
| A. | Variation in control of input signal level |
| B. | Variation in voltage gain of multistage amplifier |
| C. | Variation in current gain of multistage amplifier |
| D. | Variation in control of output signal level |
| Answer» C. Variation in current gain of multistage amplifier | |
| 33. |
An electric motor with 'constant output power' will have a torque-speed characteristic in the form o a |
| A. | straight line through a origin |
| B. | straight line parallel to speed axis |
| C. | circle about origin |
| D. | rectangular hyperbola |
| Answer» E. | |
| 34. |
The passive 2-port network is in a steady state. Compared to its input, the steady state output can never offer |
| A. | higher voltage |
| B. | lower impedance |
| C. | greater power |
| D. | better regulation |
| Answer» D. better regulation | |
| 35. |
The rms value of the voltage V(t) =3 + 4 cos (3f) is |
| A. | √ 17V |
| B. | 5V |
| C. | 3.7 V |
| D. | (3 + 2 √ 2) V |
| Answer» B. 5V | |
| 36. |
A power supply having output resistance 1.5Ω supplies a full load current of 500mA to a 10Ω load. Determine percent voltage regulation of the supply. |
| A. | 15% |
| B. | 20% |
| C. | 45% |
| D. | 80% |
| Answer» B. 20% | |
| 37. |
The ratio of resistances of a 110 W, 220 V lamp to that of a 55 W, 110 V lamp will be at the respective voltages |
| A. | 1 |
| B. | 2 |
| C. | 4 |
| D. | 8 |
| Answer» C. 4 | |
| 38. |
Which of the following is not the disadvantage of lower power factor? |
| A. | Larger copper losses |
| B. | Greater conductor size |
| C. | Voltage regulation |
| D. | lesser kVA rating |
| Answer» E. | |
| 39. |
Consider that m elements are to be sorted. What is the worst case time complexity of bubble sort ? |
| A. | O(1) |
| B. | O(log n) |
| C. | O(n) |
| D. | O(n2) |
| Answer» E. | |
| 40. |
The C declaration int A[5][7] Contains x elements, each of these elements is itself an array containing y integers. What is the value of 2x+y |
| A. | 17 |
| B. | 24 |
| C. | 35 |
| D. | None of these |
| Answer» B. 24 | |
| 41. |
What is the order to access the elements of a pushdown stack ? |
| A. | First In First Out |
| B. | Last In First Out |
| C. | Last In Last Out |
| D. | First In Last Out |
| Answer» C. Last In Last Out | |
| 42. |
Which of the following is the function/s of the database administration? |
| A. | Application checking |
| B. | Database access planning |
| C. | Computer applications management |
| D. | All of these |
| Answer» C. Computer applications management | |
| 43. |
What of the following sorting procedure is the slowest? |
| A. | Bubble sort |
| B. | Quick sort |
| C. | Heap sort |
| D. | Shell sort |
| Answer» B. Quick sort | |
| 44. |
What is the function of application programs in the DBMS approach? |
| A. | processing functions |
| B. | storage functions |
| C. | access control |
| D. | None of these |
| Answer» B. storage functions | |
| 45. |
Which of the following has highest thermal diffusivity? |
| A. | Iron |
| B. | Lead |
| C. | Wood |
| D. | None of these |
| Answer» C. Wood | |
| 46. |
Neutral flame is used for welding |
| A. | Brasses only |
| B. | Bronzes only |
| C. | Brasses and bronzes |
| D. | None of these |
| Answer» D. None of these | |
| 47. |
Naphthenic acid is a: |
| A. | Nitrogen compound |
| B. | Hydrocarbon |
| C. | Oxygen compound |
| D. | None of these |
| Answer» D. None of these | |
| 48. |
CnH2n+2 is the general formula of : |
| A. | Paraffins |
| B. | Naphthenes |
| C. | Olefins |
| D. | Aromatics |
| Answer» B. Naphthenes | |
| 49. |
The number of independent elastic constants for a linear elastic isotropic and homogenous material is |
| A. | 4 |
| B. | 3 |
| C. | 2 |
| D. | 1 |
| Answer» D. 1 | |
| 50. |
The stiffness coefficient kij; indicates |
| A. | Force at i due to a unit deformation at j |
| B. | Deformation at j due to a unit force at i |
| C. | Deformation at I due to a unit force at j |
| D. | Force at j due to a unit deformation at i |
| Answer» B. Deformation at j due to a unit force at i | |