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MCQOPTIONS
This section includes 2374 Mcqs, each offering curated multiple-choice questions to sharpen your Embedded Systems knowledge and support exam preparation. Choose a topic below to get started.
| 501. |
An equilateral triangle of side 10 cm is held parallel to horizontal plane and base is parallel to xy reference line. The length of line from side view will be _____ |
| A. | 8.66 cm |
| B. | 10 cm |
| C. | 0 cm |
| D. | 12.47 cm |
| Answer» B. 10 cm | |
| 502. |
An equilateral triangle of side 10 cm is held parallel to horizontal plane and base is parallel to xy reference line. The length of line from front view will be _____ |
| A. | 8.66 cm |
| B. | 10 cm |
| C. | 0 cm |
| D. | 12.47 cm |
| Answer» C. 0 cm | |
| 503. |
Why are functions extern by default? |
| A. | Because functions are always private |
| B. | Because those are not visible throughout the program |
| C. | Because those can’t be accessed in all parts of the program |
| D. | Because those are visible throughout the program |
| Answer» B. Because those are not visible throughout the program | |
| 504. |
If extern variable is initialized with the declaration then _______________________ |
| A. | Also the header file with definition is required |
| B. | The header file with definition must be included |
| C. | There is no need to include any other header file for definition |
| D. | The extern variable produces compile time error |
| Answer» D. The extern variable produces compile time error | |
| 505. |
If the definition is given in the header file that we include then ________________ |
| A. | The program can run successfully |
| B. | Also the program should define the extern variable |
| C. | The extern variable must contain two definitions |
| D. | Extern variable can’t be used in the program |
| Answer» B. Also the program should define the extern variable | |
| 506. |
What will be the output of the program? |
| A. | 10 |
| B. | 11 |
| C. | Run time error |
| D. | Compile time errorView Answer |
| Answer» E. | |
| 507. |
Which is the correct syntax for extern function declaration? |
| A. | extern function_name(argument_list); |
| B. | extern return_type function_name(argument_list); |
| C. | extern (return_type)function_name(argument_list); |
| D. | return_type extern function_name(argument_list); |
| E. | function_name(argument_list);d) return_type extern function_name(argument_list); |
| Answer» C. extern (return_type)function_name(argument_list); | |
| 508. |
Which is the correct syntax for extern variable declaration? |
| A. | extern data_type variable_name; |
| B. | extern variable_name; |
| C. | data_type variable_name extern; |
| D. | extern (data_typ |
| E. | variable_name; |
| Answer» B. extern variable_name; | |
| 509. |
Which of the following results in the allocation of memory for the extern variables? |
| A. | Declaration |
| B. | Definition |
| C. | Including file |
| D. | Memory is not allocated for extern variables |
| Answer» C. Including file | |
| 510. |
Even if a variable is not declared as extern, it is extern by default. |
| A. | True |
| B. | False |
| Answer» C. | |
| 511. |
Whenever a function is declared in a program _____________________ |
| A. | extern can be used only in some special cases |
| B. | extern can’t be used |
| C. | function is extern by default |
| D. | it can’t be made extern |
| Answer» D. it can’t be made extern | |
| 512. |
Which condition is true if the extern variable is used in a file? |
| A. | All the header files declare it |
| B. | Only few required files declare it |
| C. | All header files declared it if required |
| D. | Only one header file should declare it |
| Answer» E. | |
| 513. |
What does a header file contain for an extern variable? |
| A. | Only declaration of variables |
| B. | Only definition of variables |
| C. | Both declaration and definition of variables |
| D. | Neither declaration nor definition |
| Answer» B. Only definition of variables | |
| 514. |
To use extern variable _____________________ |
| A. | The source file must not be included in the new file code |
| B. | The source file itself must be used for a new program |
| C. | The source file must be included in the new file |
| D. | The source file doesn’t matter for extern variables |
| Answer» D. The source file doesn’t matter for extern variables | |
| 515. |
Which among the following is true for the variables? |
| A. | Variable can be defined only once |
| B. | Variable can be defined any number of times |
| C. | Variable must be defined more than one time |
| D. | Variable can be defined in different files |
| Answer» B. Variable can be defined any number of times | |
| 516. |
Which among the following is a correct statement for variables? |
| A. | Variable can be declared many times |
| B. | Variable can be declared only one time |
| C. | Variable declaration can’t be done more than ones |
| D. | Variable declaration is always done more than one time |
| Answer» B. Variable can be declared only one time | |
| 517. |
What is extern variable? |
| A. | Variables to be used that are declared in another object file |
| B. | Variables to be used that are declared in another source file |
| C. | Variables to be used that are declared in another executable file |
| D. | Variables to be used that are declared in another program |
| Answer» C. Variables to be used that are declared in another executable file | |
| 518. |
Which of the following code is not profiled? |
| A. | C |
| B. | C++ |
| C. | Java |
| D. | PHP |
| Answer» B. C++ | |
| 519. |
Which of the following statement gives sampling interval? |
| A. | $sampling.interval |
| B. | $sampling.time |
| C. | $sampling.date |
| D. | $sampling.datetime |
| Answer» C. $sampling.date | |
| 520. |
The final bit of output that summaryRprof() provides is the ______ interval and the total runtime. |
| A. | response |
| B. | sampling |
| C. | processing |
| D. | retrieve |
| Answer» C. processing | |
| 521. |
Which of the following function actually fits the linear model? |
| A. | lm.time() |
| B. | lm.date() |
| C. | lm.fit() |
| D. | lm.interval() |
| Answer» D. lm.interval() | |
| 522. |
How many methods exist for normalizing the data? |
| A. | one |
| B. | two |
| C. | three |
| D. | profiler |
| Answer» C. three | |
| 523. |
The profiler can be turned off by passing _________ to Rprof(). |
| A. | 0 |
| B. | 1 |
| C. | 2 |
| D. | NULL |
| Answer» E. | |
| 524. |
The Western Ghats and the Eastern Ghats meet each other at which hills? |
| A. | Ananthagiri hills |
| B. | Coonoor hills |
| C. | Biligiriranga hills |
| D. | Munnar hills |
| Answer» D. Munnar hills | |
| 525. |
Which biogeographic zone is considered as one of the 25 biodiversity hot-spots globally? |
| A. | Deccan plateau |
| B. | Western Ghats |
| C. | Deserts |
| D. | Himalayas |
| Answer» C. Deserts | |
| 526. |
Which one of the following is the ecological problems being faced by the semi-arid zones in India? |
| A. | Organic farming |
| B. | Rural development |
| C. | Animals conflict |
| D. | Desertification |
| Answer» E. | |
| 527. |
How many biogeographic zones are there in India? |
| A. | Five |
| B. | Ten |
| C. | Fifteen |
| D. | Twenty |
| Answer» C. Fifteen | |
| 528. |
Searching using query on Internet is, use of ___________ type of agent. |
| A. | Offline agent |
| B. | Online agent |
| C. | Both Offline & Online agent |
| D. | Goal Based & Online agent |
| Answer» E. | |
| 529. |
What are the two main features of Genetic Algorithm? |
| A. | Fitness function & Crossover techniques |
| B. | Crossover techniques & Random mutation |
| C. | Individuals among the population & Random mutation |
| D. | Random mutation & Fitness function |
| Answer» B. Crossover techniques & Random mutation | |
| 530. |
A genetic algorithm (or GA) is a variant of stochastic beam search in which successor states are generated by combining two parent states, rather than by modifying a single state. |
| A. | is a variant of stochastic beam search in which successor states are generated by combining two parent states, rather than by modifying a single state.a) True |
| B. | False |
| Answer» B. False | |
| 531. |
Hill-Climbing approach stuck for which of the following reasons? |
| A. | Local maxima |
| B. | Ridges |
| C. | Plateaux |
| D. | All of the mentioned |
| Answer» E. | |
| 532. |
Hill climbing sometimes called ____________ because it grabs a good neighbor state without thinking ahead about where to go next. |
| A. | Needy local search |
| B. | Heuristic local search |
| C. | Greedy local search |
| D. | Optimal local search |
| Answer» D. Optimal local search | |
| 533. |
What are the main cons of hill-climbing search? |
| A. | Terminates at local optimum & Does not find optimum solution |
| B. | Terminates at global optimum & Does not find optimum solution |
| C. | Does not find optimum solution & Fail to find a solution |
| D. | Fail to find a solution |
| Answer» B. Terminates at global optimum & Does not find optimum solution | |
| 534. |
When will Hill-Climbing algorithm terminate? |
| A. | Stopping criterion met |
| B. | Global Min/Max is achieved |
| C. | No neighbor has higher value |
| D. | All of the mentioned |
| Answer» D. All of the mentioned | |
| 535. |
_______________ Is an algorithm, a loop that continually moves in the direction of increasing value – that is uphill. |
| A. | Up-Hill Search |
| B. | Hill-Climbing |
| C. | Hill algorithm |
| D. | Reverse-Down-Hill search |
| Answer» C. Hill algorithm | |
| 536. |
A complete, local search algorithm always finds goal if one exists, an optimal algorithm always finds a global minimum/maximum. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 537. |
Though local search algorithms are not systematic, key advantages would include __________ |
| A. | Less memory |
| B. | More time |
| C. | Finds a solution in large infinite space |
| D. | Less memory & Finds a solution in large infinite space |
| Answer» E. | |
| 538. |
In many problems the path to goal is irrelevant, this class of problems can be solved using ____________ |
| A. | Informed Search Techniques |
| B. | Uninformed Search Techniques |
| C. | Local Search Techniques |
| D. | Informed & Uninformed Search Techniques |
| Answer» D. Informed & Uninformed Search Techniques | |
| 539. |
What is the contact zone loading rate for a conventional dissolved air floatation process considered? |
| A. | 100-200 m/h |
| B. | 300-350 m/h |
| C. | 40-90 m/h |
| D. | 60-180 m/h |
| Answer» B. 300-350 m/h | |
| 540. |
What is the separation zone loading rate for a conventional dissolved air floatation process considered? |
| A. | 10-30 m/h |
| B. | 30-35 m/h |
| C. | 4-9 m/h |
| D. | 6-18 m/h |
| Answer» E. | |
| 541. |
What does the performance of a Dissolved air floatation depend on? |
| A. | Air to solid ratio |
| B. | Air to oil ratio |
| C. | Air to flow rate of water |
| D. | Air to the grease ratio |
| Answer» B. Air to oil ratio | |
| 542. |
In a four stroke cycle diesel engine, the inlet valve __________ |
| A. | opens at 20º before top dead center and closes at 40º after bottom dead center |
| B. | opens at 20º after top dead center and closes at 20º before bottom dead center |
| C. | opens at top dead center and closes at bottom dead center |
| D. | may open or close anywhere |
| Answer» B. opens at 20º after top dead center and closes at 20º before bottom dead center | |
| 543. |
In a four stroke cycle the minimum temperature inside the engine cylinder occurs at the __________ |
| A. | beginning of suction stroke |
| B. | end of suction stroke |
| C. | beginning of exhaust stroke |
| D. | end of exhaust stroke |
| Answer» B. end of suction stroke | |
| 544. |
The inlet valve of a four stroke cycle internal combustion engine remains open for __________ |
| A. | 130º |
| B. | 180º |
| C. | 230º |
| D. | 270º |
| Answer» D. 270º | |
| 545. |
The exhaust valve in a four stroke cycle petrol engine __________ |
| A. | opens at 50º before bottom dead center and closes at 15º after top dead center |
| B. | opens at bottom dead center and closes at top dead center |
| C. | opens at 50º after bottom dead center and closes at 15º before top dead center |
| D. | may open or close anywhere |
| Answer» B. opens at bottom dead center and closes at top dead center | |
| 546. |
In a four stroke cycle petrol engine, the expansion __________ |
| A. | starts at top dead center and ends at bottom dead center |
| B. | starts at 30º before top dead center and ends at 50º before bottom dead center |
| C. | starts at 30º after top dead center and ends at 50º after bottom dead center |
| D. | may start and end anywhere |
| Answer» C. starts at 30º after top dead center and ends at 50º after bottom dead center | |
| 547. |
In a four stroke cycle petrol engine, the charge is ignited at __________ |
| A. | 30º before top dead center |
| B. | 30º after top dead center |
| C. | 30º before bottom dead center |
| D. | 30º after bottom dead center |
| Answer» B. 30º after top dead center | |
| 548. |
In a four stroke cycle petrol engine, the compression __________ |
| A. | starts at 40º after bottom dead center and ends at 30º before top dead center |
| B. | starts at 40º before bottom dead center and ends at 30º after top dead center |
| C. | starts at bottom dead center and ends at top dead center |
| D. | may start and end anywhere |
| Answer» B. starts at 40º before bottom dead center and ends at 30º after top dead center | |
| 549. |
In a four stroke cycle petrol engine, the inlet valve __________ |
| A. | opens at top dead center and closes at bottom dead center |
| B. | opens at 20º before top dead center and closes at 40º after bottom dead center |
| C. | opens at 20º after top dead center and closes at 20º before bottom dead center |
| D. | may open or close anywhere |
| Answer» C. opens at 20º after top dead center and closes at 20º before bottom dead center | |
| 550. |
In a four stroke cycle engine, the sequence of operation is __________ |
| A. | suction, compression, expansion and exhaust |
| B. | suction, expansion, compression and exhaust |
| C. | expansion, compression, suction and exhaust |
| D. | compression, expansion, suction and exhaust |
| Answer» B. suction, expansion, compression and exhaust | |