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MCQOPTIONS
This section includes 2167 Mcqs, each offering curated multiple-choice questions to sharpen your Php knowledge and support exam preparation. Choose a topic below to get started.
| 1051. |
What is the hydraulic loading rate in m2/m3/h of a disc filter assumed while designing it? |
| A. | 0.25-0.83 |
| B. | 0.02-0.083 |
| C. | 2.5-8.3 |
| D. | 8.3-10 |
| Answer» B. 0.02-0.083 | |
| 1052. |
What is the size of openings for a disc filter? |
| A. | 20-35 µm |
| B. | 10-20 µm |
| C. | 20-30 µm |
| D. | 5-10 µm |
| Answer» B. 10-20 µm | |
| 1053. |
If A is a subset of B and B is a subset of C, then cardinality of A U B U C is equal to ____________ |
| A. | Cardinality of C |
| B. | Cardinality of B |
| C. | Cardinality of A |
| D. | None of the mentioned |
| Answer» B. Cardinality of B | |
| 1054. |
If cardinality of (A U B) = cardinality of A+ cardinality of B. This means ____________ |
| A. | A is a subset of B |
| B. | B is a subset of A |
| C. | A and B are disjoint |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 1055. |
If for sets A and B there exists an injective function but not bijective function from A to B then? |
| A. | Cardinality of A is strictly greater than B |
| B. | Cardinality of B is strictly greater than A |
| C. | Cardinality of B is equal to A |
| D. | None of the mentioned |
| Answer» C. Cardinality of B is equal to A | |
| 1056. |
Cardinality of the set of lower letter english alphabets is 26. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 1057. |
Let a set E ={0,2,4,6,8….} of non-negative even numbers and O = {1, 3, 5, 7, 9,…..} of non-negative odd numbers then? |
| A. | Cardinality of set E is greater than that of O |
| B. | Cardinality of set O is greater than that of E |
| C. | Cardinality of set E is equal to that of O |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 1058. |
If there is a bijection between two sets A and B then _______ |
| A. | Cardinality of A is greater than B |
| B. | Cardinality of B is greater than A |
| C. | Cardinality of B is equal to A |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 1059. |
If A is a subset of B then _______ |
| A. | The cardinality of A is greater than B |
| B. | The cardinality of B is greater than A |
| C. | Can’t say |
| D. | None of the mentioned |
| Answer» C. Can’t say | |
| 1060. |
For two equal sets there ___________ |
| A. | Cardinality is same |
| B. | Cardinality is different |
| C. | May be same or different |
| D. | None of the mentioned |
| Answer» B. Cardinality is different | |
| 1061. |
The cardinality of the set A = {1, 2, 3, 4, 6} is? |
| A. | 5 |
| B. | 6 |
| C. | Integer |
| D. | None of the mentioned |
| Answer» B. 6 | |
| 1062. |
How many diffraction gratings are used by interferometer in grazing incident technique with laser beam system? |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | 4 |
| Answer» C. 3 | |
| 1063. |
Which of the following statement is true about the grazing incident technique used to evaluate surface flatness?Statement 1: Grazing incidence design turns rough surface into polished mirror surface to facilitate measurement.Statement 2: It is important to prevent test beam to strike at grazing angle for measurement performance. |
| A. | F, F |
| B. | T, T |
| C. | F, T |
| D. | T, F |
| Answer» E. | |
| 1064. |
How many data points can be analyzed in 20 seconds using grazing incidence interferometry? |
| A. | 35,000 |
| B. | 45,000 |
| C. | 55,000 |
| D. | 65,000 |
| Answer» E. | |
| 1065. |
Which of these is superclass of WindowEvent class? |
| A. | WindowEvent |
| B. | ComponentEvent |
| C. | ItemEvent |
| D. | InputEvent |
| Answer» C. ItemEvent | |
| 1066. |
Which of these are constants defined in WindowEvent class? |
| A. | WINDOW_ACTIVATED |
| B. | WINDOW_CLOSED |
| C. | WINDOW_DEICONIFIED |
| D. | All of the mentioned |
| Answer» E. | |
| 1067. |
Which of these methods is used to get x coordinate of the mouse? |
| A. | getX() |
| B. | getXCoordinate() |
| C. | getCoordinateX() |
| D. | getPointX() |
| Answer» B. getXCoordinate() | |
| 1068. |
MouseEvent is subclass of which of these classes? |
| A. | ComponentEvent |
| B. | ContainerEvent |
| C. | ItemEvent |
| D. | InputEvent |
| Answer» E. | |
| 1069. |
Which of these methods is used to obtain the object that generated a WindowEvent? |
| A. | getMethod() |
| B. | getWindow() |
| C. | getWindowEvent() |
| D. | getWindowObject() |
| Answer» C. getWindowEvent() | |
| 1070. |
Which of these are integer constants of TextEvent class? |
| A. | TEXT_CHANGED |
| B. | TEXT_FORMAT_CHANGED |
| C. | TEXT_VALUE_CHANGED |
| D. | TEXT_sIZE_CHANGED |
| Answer» D. TEXT_sIZE_CHANGED | |
| 1071. |
Which of these methods can be used to change location of an event? |
| A. | ChangePoint() |
| B. | TranslatePoint() |
| C. | ChangeCordinates() |
| D. | TranslateCordinates() |
| Answer» C. ChangeCordinates() | |
| 1072. |
Which of these methods can be used to obtain the coordinates of a mouse? |
| A. | getPoint() |
| B. | getCoordinates() |
| C. | getMouseXY() |
| D. | getMouseCordinates() |
| Answer» B. getCoordinates() | |
| 1073. |
Which of these events is generated when the window is closed? |
| A. | TextEvent |
| B. | MouseEvent |
| C. | FocusEvent |
| D. | WindowEvent |
| Answer» E. | |
| 1074. |
Which function key is used to make OSNAP on/off? |
| A. | F5 |
| B. | F3 |
| C. | F4 |
| D. | F7 |
| Answer» C. F4 | |
| 1075. |
Object snap increases ________ |
| A. | speed, accuracy and ease of drafting |
| B. | speed of drawing |
| C. | memory utilization |
| D. | accuracy while drafting |
| Answer» B. speed of drawing | |
| 1076. |
Ortho command can be operated by pressing F9. |
| A. | True |
| B. | False |
| Answer» C. | |
| 1077. |
What is the output of (/ 6 3) and (- 6 4)? |
| A. | 2 2 |
| B. | 1/2 2 |
| C. | 2 -2 |
| D. | 1/2 -2 |
| Answer» B. 1/2 2 | |
| 1078. |
Are arithmetic operators primitives in LISP? |
| A. | True |
| B. | False |
| Answer» B. False | |
| 1079. |
What are 2 and 3 referred as in the following LISP statement? |
| A. | List |
| B. | Arguments |
| C. | It can be both List and argument |
| D. | None of the mentionedView Answer |
| Answer» C. It can be both List and argument | |
| 1080. |
What is the output of the following LISP program? |
| A. | rook king queen |
| B. | king queen rook |
| C. | king queen |
| D. | rookView Answer |
| Answer» B. king queen rook | |
| 1081. |
What are the elements in list: tap in following LISP statement? |
| A. | Water |
| B. | Oil |
| C. | Grease |
| D. | Water oil greaseView Answer |
| Answer» E. | |
| 1082. |
Choose the correct option for the output when lower or upper-case arguments are given in LISP. |
| A. | Same output |
| B. | Different output |
| C. | LISP does not support lower case |
| D. | LISP does not support upper case |
| Answer» B. Different output | |
| 1083. |
Which of the following is a remote Trojan? |
| A. | Troya |
| B. | DaCryptic |
| C. | BankerA |
| D. | Game-Troj |
| Answer» B. DaCryptic | |
| 1084. |
__________ is a powerful RAT build using the language Delphi 7. |
| A. | Stuxnet |
| B. | T-Bomb |
| C. | Beast |
| D. | Zeus |
| Answer» D. Zeus | |
| 1085. |
Backdoors are also known as ______________ |
| A. | Malware-doors |
| B. | Trojan-backups |
| C. | Front-doors |
| D. | Trapdoors |
| Answer» E. | |
| 1086. |
The threat of backdoors started when ____________ & ____________ OSs became widely accepted. |
| A. | single-user, Windows |
| B. | multiuser, networked |
| C. | single-user, UNIX |
| D. | multiuser, UNIX |
| Answer» C. single-user, UNIX | |
| 1087. |
Trojans having backdoors are harmless. |
| A. | True |
| B. | False |
| Answer» C. | |
| 1088. |
A _________________ may be a hidden part of a program, a separate infected program a Trojan in disguise of an executable or code in the firmware of any system’s hardware. |
| A. | crypter |
| B. | virus |
| C. | backdoor |
| D. | key-logger |
| Answer» D. key-logger | |
| 1089. |
_____________ can modify data on your system – so that your system doesn’t run correctly or you can no longer access specific data, or it may even ask for ransom in order to give your access. |
| A. | IM – Trojans |
| B. | Backdoor Trojans |
| C. | Trojan-Downloader |
| D. | Ransom Trojan |
| Answer» E. | |
| 1090. |
A/an ___________ is a program that steals your logins & passwords for instant messaging applications. |
| A. | IM – Trojans |
| B. | Backdoor Trojans |
| C. | Trojan-Downloader |
| D. | Ransom Trojan |
| Answer» B. Backdoor Trojans | |
| 1091. |
Efficiency of water electrolysis is greater than the efficiency of steam reforming. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 1092. |
Which of the following uses hydrogen as fuel? |
| A. | Vehicles |
| B. | AA battery |
| C. | AAA battery |
| D. | Power plants |
| Answer» B. AA battery | |
| 1093. |
What is photocatalytic water splitting? |
| A. | Splitting of water using catalyst and electricity |
| B. | Splitting of water using electricity |
| C. | Combining hydrogen and oxygen to form water |
| D. | Splitting of water using light as catalyst |
| Answer» E. | |
| 1094. |
What is hydrogen compressor do to hydrogen? |
| A. | Increases both pressure and volume |
| B. | Decreases both pressure and volume |
| C. | Increases pressure and decreases volume |
| D. | Decreases pressure and increases volume |
| Answer» D. Decreases pressure and increases volume | |
| 1095. |
What are the main components of a fuel cell? |
| A. | Anode, cathode, electrolyte |
| B. | Anode, cathode, membrane and electrolyte (including fuel) |
| C. | Anode, cathode |
| D. | Anode, cathode, electrolyte and connecting wires |
| Answer» C. Anode, cathode | |
| 1096. |
Cryogenic adsorption is a physical means to store hydrogen. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 1097. |
Hydrogen molecules are dissociated either _________ or _________ to form hydrides. |
| A. | under sunlight or cold temperatures |
| B. | by substitution or electrolysis |
| C. | by electrolysis or heterolytically |
| D. | homolytically or heterolytically |
| Answer» E. | |
| 1098. |
How is hydrogen stored chemically? |
| A. | As ions |
| B. | By compressing hydrogen gas |
| C. | In the form of hydrides |
| D. | In the form of ice |
| Answer» D. In the form of ice | |
| 1099. |
How is hydrogen stored physically? |
| A. | As atoms |
| B. | By compressing hydrogen gas |
| C. | In the form of hydrides |
| D. | In the form of water |
| Answer» C. In the form of hydrides | |
| 1100. |
By what means can hydrogen be stored? |
| A. | Physically and chemically |
| B. | As atoms |
| C. | As ions |
| D. | As fuel cells |
| Answer» B. As atoms | |