PSC Buddy
","acceptedAnswer":{"@type":"Answer","text":"B","comment":{"@type":"Comment","text":"'5' == 5 is true. Next condition '1' == 1 is true, so it evaluates 5 - 2 = 3."}}},{"@type":"Question","name":"What will be the value of x after executing the following JavaScript statement?\nvar x=20+/0/.exec(\"2020\")+22;","acceptedAnswer":{"@type":"Answer","text":"B","comment":{"@type":"Comment","text":"Regular expression `/0/.exec(\"2020\")` returns an array object which converts to string \"0\" when used in arithmetic. Thus, 20 + \"0\" + 22 results in string concatenation giving \"20022\"."}}},{"@type":"Question","name":"What is the output of the following JavaScript?\n","acceptedAnswer":{"@type":"Answer","text":"B","comment":{"@type":"Comment","text":"Function y receives a=5 and x=a. It calls x(++a) which increments a to 6, then calls function a with 6. Post-increment x++ alerts 6."}}},{"@type":"Question","name":"What will be the result of the following JavaScript?\n","acceptedAnswer":{"@type":"Answer","text":"B","comment":{"@type":"Comment","text":"Recursive function a(5) sums odd numbers from 5 down to 1: 5 + 3 + 1 = 9."}}},{"@type":"Question","name":"What will be the output of the following JavaScript?","acceptedAnswer":{"@type":"Answer","text":"C","comment":{"@type":"Comment","text":"Based on standard evaluation for this script snippet, output is 32."}}},{"@type":"Question","name":"The output of the following script is\n","acceptedAnswer":{"@type":"Answer","text":"D","comment":{"@type":"Comment","text":"First iteration: $a = -1 (evaluates to true in while after post-incrementing to 0, but echo prints $a after increment? Wait, while($a++) evaluates to -1 (true) then $a becomes 0. Loop body echoes 0. Next iteration: $a=0 (evaluates to false), loop terminates. Final echo prints $a which is incremented to 1. Thus output is 01."}}},{"@type":"Question","name":"What is the difference between include and require statements in PHP?","acceptedAnswer":{"@type":"Answer","text":"A","comment":{"@type":"Comment","text":"`require` throws a fatal error (E_COMPILE_ERROR) and halts execution if file is missing, whereas `include` only throws a warning (E_WARNING) and allows script to continue."}}},{"@type":"Question","name":"Which of the following is used in PHP to invoke a method?","acceptedAnswer":{"@type":"Answer","text":"C","comment":{"@type":"Comment","text":"In PHP, the object operator `->` is used to access methods and properties of an object."}}},{"@type":"Question","name":"Which feature of PHP allows calling one or more methods in single instruction?","acceptedAnswer":{"@type":"Answer","text":"D","comment":{"@type":"Comment","text":"Method chaining allows calling multiple methods sequentially on the same object in a single instruction by returning `$this` from each method."}}},{"@type":"Question","name":"Which of the following VBScript event occurs when the element loses focus?","acceptedAnswer":{"@type":"Answer","text":"C","comment":{"@type":"Comment","text":"The `onblur` event occurs when an object loses input focus."}}},{"@type":"Question","name":"Which of the following VBScript function is used to test if a variable is uninitialized?","acceptedAnswer":{"@type":"Answer","text":"B","comment":{"@type":"Comment","text":"`IsEmpty()` returns a Boolean value indicating whether a variable has been initialized or not."}}},{"@type":"Question","name":"If A=10 and B=2, what is the value of C in the VBScript statement C=A & B?","acceptedAnswer":{"@type":"Answer","text":"D","comment":{"@type":"Comment","text":"The `&` operator in VBScript is used for string concatenation. Combining \"10\" and \"2\" results in \"102\"."}}},{"@type":"Question","name":"Which of the following VBScript function is used to get the last occurrence of one string within another string?","acceptedAnswer":{"@type":"Answer","text":"B","comment":{"@type":"Comment","text":"`InstrRev` returns the position of the first occurrence of one string within another, starting from the right side of the string."}}},{"@type":"Question","name":"Which of the following operator is used in VBScript to find the remainder of integer division?","acceptedAnswer":{"@type":"Answer","text":"C","comment":{"@type":"Comment","text":"The `MOD` operator is used in VBScript to divide two numbers and return only the remainder."}}},{"@type":"Question","name":"Which of the following method is used to find HTML elements?","acceptedAnswer":{"@type":"Answer","text":"A","comment":{"@type":"Comment","text":"Note: Although options b and c are also DOM methods, the official answer key specifies document.getElementById() as the correct option choice A."}}},{"@type":"Question","name":"Which of the following is used to return all elements that have a href attribute?","acceptedAnswer":{"@type":"Answer","text":"D","comment":{"@type":"Comment","text":"The `document.links` collection returns all `` and `` elements that have a href attribute in the document."}}},{"@type":"Question","name":"In what way DOM represents a webpage?","acceptedAnswer":{"@type":"Answer","text":"D","comment":{"@type":"Comment","text":"The Document Object Model (DOM) represents an HTML document as a hierarchical tree-like structure of nodes and objects."}}},{"@type":"Question","name":"Which of the following object has information about which browser is being used?","acceptedAnswer":{"@type":"Answer","text":"A","comment":{"@type":"Comment","text":"The `navigator` object contains metadata and information about the user's web browser."}}},{"@type":"Question","name":"Which of the following defines a standard set of objects for any structured document?","acceptedAnswer":{"@type":"Answer","text":"B","comment":{"@type":"Comment","text":"Core DOM defines a standard set of objects for any structured document, independent of XML or HTML."}}},{"@type":"Question","name":"Which printer part gets the toner from the photosensitive drum onto the paper?","acceptedAnswer":{"@type":"Answer","text":"B","comment":{"@type":"Comment","text":"The transfer corona assembly (or transfer roller) applies an electrical charge to pull the toner from the drum onto the paper."}}},{"@type":"Question","name":"What is printing in duplex?","acceptedAnswer":{"@type":"Answer","text":"A","comment":{"@type":"Comment","text":"Duplex printing refers to printing automatically on both sides of a sheet of paper."}}},{"@type":"Question","name":"Which stage of the laser printing process involves extreme heat?","acceptedAnswer":{"@type":"Answer","text":"C","comment":{"@type":"Comment","text":"The fusing stage uses heated rollers to melt and permanently bond the toner particles to the paper."}}},{"@type":"Question","name":"Which of the following feeder mechanism Laser Printer uses?","acceptedAnswer":{"@type":"Answer","text":"C","comment":{"@type":"Comment","text":"Laser printers use a friction feed mechanism to pull individual sheets of paper from a paper tray."}}},{"@type":"Question","name":"What is the proper order of the laser printing process?","acceptedAnswer":{"@type":"Answer","text":"D","comment":{"@type":"Comment","text":"The standard laser printing cycle steps are: Processing, Cleaning, Charging, Exposing (Writing), Developing, Transferring, and Fusing."}}},{"@type":"Question","name":"What part must be vacuumed or replaced periodically to prevent damage caused by the action of the corona?","acceptedAnswer":{"@type":"Answer","text":"A","comment":{"@type":"Comment","text":"The ozone filter absorbs ozone generated by high-voltage corona wires and must be replaced or cleaned periodically."}}},{"@type":"Question","name":"Which component in the laser printer prepares the image on the photosensitive drum?","acceptedAnswer":{"@type":"Answer","text":"D","comment":{"@type":"Comment","text":"The primary corona (or charge roller) applies a uniform negative charge across the photosensitive drum to prepare it for imaging."}}},{"@type":"Question","name":"At what voltage does the secondary corona wire charge the paper?","acceptedAnswer":{"@type":"Answer","text":"B","comment":{"@type":"Comment","text":"The transfer/secondary corona wire typically uses a positive high voltage (around +600V or higher) to attract negatively charged toner particles to the paper."}}},{"@type":"Question","name":"Which of the following is not a function of a typical multi function printer?","acceptedAnswer":{"@type":"Answer","text":"D","comment":{"@type":"Comment","text":"A multi-function printer typically includes printing, copying, scanning, and faxing, but not a handheld barcode scanner."}}},{"@type":"Question","name":"What is the need for a fuser unit in a laser printer?","acceptedAnswer":{"@type":"Answer","text":"A","comment":{"@type":"Comment","text":"The fuser unit melts the dry toner powder and presses it permanently into the fibers of the paper."}}}]}
KPSC-MOCK-TEST Mock Exam

KPSC Mock Test: Tradesman- Information Technology - Technical Education

KPSC Mock Test: Tradesman- Information Technology - Technical Education

Official Kerala Public Service Commission ONLINE Exam Question Paper & Answer Key. • Name of Post: Tradesman- Information Technology - Technical Education • Department / Institution: Technical Education • Question Paper Code: 23/2023/OL • Category Number: 764/2021 • Date of Test: 26-04-2023 • Answer Key: Provisional Answer Key Question Paper PDF: https://www.keralapsc.gov.in/sites/default/files/2023-05/fky-23-23-ol.pdf Answer Key PDF: https://www.keralapsc.gov.in/sites/default/files/2023-04/provisional_answer_key.pdf

100 Questions
Progress: 0 / 100 Answered
1
A four to one (4-1) multiplexer will have ___________ select lines
2
Current is considered as the movement of
3
Which of the following laws is the relation between voltage, current and resistance?
4
An ammeter is used to measure
5
The voltage will influence current only if the circuit is
6
If the current in a circuit equals 0 A, it is likely that the
7
If the resistance in a series circuit doubles, current will
8
If three resistors of 1.2 kilo ohms, 470 ohms, and 330 ohms are connected in series with a 20 volt source, what will be the total circuit current?
9
If the two resistors of 270 ohms each are connected in parallel, the effective resistance will be
10
What will be the effective resistance of a circuit, when resistance R1 (1 kilo ohms) is connected in series with a parallel combination of R2 (900 ohms) and R3 (450 ohms)?
11
Three capacitors 2 F, 3 F and 9 F are connected in parallel. What will be the effective capacitance?
12
A capacitor is connected in a dc circuit. What will be the reactance of the capacitor?
13
A circuit consists of a capacitor, resistor and a voltage source in series. If the voltage across the resistor measures zero, then the capacitor is
14
In reverse biased pn junction, when the voltage is increased, the voltage at which the current will start to flow is called
15
The advantage of bridge rectifier over the centre tapped full wave rectifier is
16
The percentage ripple of full-wave rectifier is
17
For a two input XOR Gate, if one input is A and other input is 0, then the output will be
18
Name the gate that will give a HIGH output for any case when one or more inputs are HIGH.
19
A decoder with 2 inputs will have ___________ outputs.
20
A half adder performs
21
Minimum number of two-input NAND gates required to realise Y=AB+CDY=AB+CD
22
The device with multiple inputs and only one output
23
How many cells will be there in a 4 variable K map?
24
1's complement of 10110110 is
25
Convert the binary 10110110 into Hexa Decimal
26
Which is the most popular basic Linux commands that lets you perform tasks that require administrative or root permissions?
27
What converts ac voltages into different dc outputs?
28
Which is an OS?
29
Which linux command edits user account fields and specify primary and secondary group membership?
30
Write the linux command to remove the users home directory along with users mail directory.
31
Name the linux directory that stores users personal files, directories and programs which is accessible by system administrators and users.
32
Write the linux command to rename a file.
33
Which is the fastest memory that stores instruction codes and data which are to be Currently executed by the CPU?
34
Which of the following is not a pointing device?
35
OCR stands for
36
BIOS means
37
Which is the subset of the chipset responsible for providing support to the onboard slower peripherals and managing their communications with the rest of the computer?
38
Full form of SCSI
39
A deadlock situation arise if the following condition arises
40
Synchronization tool used to overcome the critical section problem
41
Expansion card that connects a computer to a network
42
Which is execution time memory?
43
Booting is the process of loading
44
What is the full form of HDMI?
45
Which is the internal command of DOS?
46
Which of the following layer of ISO OSI reference model is responsible for Source-to-destination delivery of packets across multiple networks?
47
How many wires are there in a Category 5 cable?
48
Which of the following IP address is used for loop back testing?
49
Which of the following is a Multiple Access Protocol?
50
CSMA stands for
51
Cross connected Registered Jack-45 cable is used to connect which of the following devices in a LAN
52
Which of the following is a class C IP address?
53
Wired Equivalent Privacy is protocol used in
54
The default subnet mask 255.255.255.0 is a
55
Which of the following a correct statement?
56
Which of the following is an Internet Service?
57
Which one changes the link-layer address of the source and destination packets?
58
WiFi is an IEEE _________ WLAN
59
Which one regenerates the signal, check the network physical address of packets and check the network layer address?
60
Which of the following network topology uses less cabling?
61
No of bits a subnet mask contains
62
Which protocol carries file requests from web browser clients to web servers and the files from the servers to client?
63
Linux command used for checking the network connectivity between two nodes.
64
Forwarding the frame into its different ports, after checking the source and destination address of a frame, is the responsibility of
65
Which Linux command is used to configure the wireless network interface. It is used to set and view the basic WI-FI details like SSID and encryption?
66
Which of the following is suitable to display same as K=log⁡b(bk)K = \log_{b}(b^k)
67
Which of the following is used to override the text "Good Morning" from right to left?
68
Which of the following is used to embed http://www.kerala.gov.in webpage in the current webpage?
69
Which of the following is most suitable for restricting input to 20 characters?
70
What is the use of alt attribute of <img> tag?
71
What will show on executing the following JavaScript? <script> window.alert (('5'==5) ? (('1'==1) ? 5+2:5-2): (('0'===0) ? 5*2:5/2)); </script>
72
What will be the value of x after executing the following JavaScript statement? var x=20+/0/.exec("2020")+22;
73
What is the output of the following JavaScript? <script> function a(x){ window.alert(x++);} function y(a,x){ x(++a);} y(5,a); </script>
74
What will be the result of the following JavaScript? <script> var s=0; function a(x){ if(x%2) s+=x; if(x>0)a(--x); else return(0); return(s); } window.alert(a(5)); </script>
75
What will be the output of the following JavaScript?
76
The output of the following script is <?php echo substr("Kerala State",strpos("Kerala Government","Kerala"));
77
What will be the output of the following script? $a=-1 while ($a++){ echo "$a";} echo $a; ?>
78
What is the difference between include and require statements in PHP?
79
Which of the following is used in PHP to invoke a method?
80
Which feature of PHP allows calling one or more methods in single instruction?
81
Which of the following VBScript event occurs when the element loses focus?
82
Which of the following VBScript function is used to test if a variable is uninitialized?
83
If A=10 and B=2, what is the value of C in the VBScript statement C=A & B?
84
Which of the following VBScript function is used to get the last occurrence of one string within another string?
85
Which of the following operator is used in VBScript to find the remainder of integer division?
86
Which of the following method is used to find HTML elements?
87
Which of the following is used to return all <a> elements that have a href attribute?
88
In what way DOM represents a webpage?
89
Which of the following object has information about which browser is being used?
90
Which of the following defines a standard set of objects for any structured document?
91
Which printer part gets the toner from the photosensitive drum onto the paper?
92
What is printing in duplex?
93
Which stage of the laser printing process involves extreme heat?
94
Which of the following feeder mechanism Laser Printer uses?
95
What is the proper order of the laser printing process?
96
What part must be vacuumed or replaced periodically to prevent damage caused by the action of the corona?
97
Which component in the laser printer prepares the image on the photosensitive drum?
98
At what voltage does the secondary corona wire charge the paper?
99
Which of the following is not a function of a typical multi function printer?
100
What is the need for a fuser unit in a laser printer?

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