| Post Name | Tradesman- Information Technology |
|---|---|
| Department | Technical Education Category No : 764/2021 |
| Question Paper Code | 023/2023/OL |
| Category Code | 764/2021 |
| Date of Test | 26 April 2023 |
| Exam Type | Online Examination |
| Total Questions | 100 |
1
Current is considered as the movement of
Answer
Question Cancelled
2
Which of the following laws is the relation between voltage, current and resistance?
Answer
A. Ohm's Law
3
An ammeter is used to measure
Answer
B. current
4
The voltage will inļ¬uence current only if the circuit is
Answer
D. Closed
5
If the current in a circuit equals 0 A, it is likely that the
Answer
D. circuit is open
6
If the resistance in a series circuit doubles, current will
Answer
D. be halved
7
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?
Answer
B. 10 mA
8
If the two resistors of 270 ohms each are connected in parallel, the eļ¬ective resistance will be
Answer
C. 135 ohms
9
What will be the eļ¬ective 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)?
Answer
A. 1.3 Kilo ohms
10
Three capacitors 2 F, 3 F and 9 F are connected in parallel. What will be the eļ¬ective capacitance?
Answer
C. 14 F
11
A capacitor is connected in a dc circuit. What will be the reactance of the capacitor?
Answer
B. inļ¬nite
12
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
Answer
B. fully charged
13
In reverse biased pn junction, when the voltage is increased, the voltage at which the current will start to ļ¬ow is called
Answer
D. breakdown voltage
14
The advantage of bridge rectiļ¬er over the centre tapped full wave rectiļ¬er is
Answer
C. lower peak inverse voltage (PIV)
15
The percentage ripple of full-wave rectiļ¬er is
Answer
A. 48%
16
For a two input XOR Gate, if one input is A and other input is 0, then the output will be
Answer
C. A
17
Name the gate that will give a HIGH output for any case when one or more inputs are HIGH.
Answer
A. OR Gate
18
A decoder with 2 inputs will have ___________ outputs.
Answer
B. 4
19
A half adder performs
Answer
B. arithmetic addition of 2 bits
20
Minimum number of two-input NAND gates required to realise Y=AB+CD
Answer
A. 3
21
The device with multiple inputs and only one output
Answer
C. Multiplexer
22
A four to one (4-1) multiplexer will have ___________ select lines
Answer
B. 2
23
How many cells will be there in a 4 variable K map?
Answer
D. 16
24
1's complement of 10110110 is
Answer
B. 01001001
25
Convert the binary 10110110 into Hexa Decimal
Answer
A. B6
26
Which is the most popular basic Linux commands that lets you perform tasks that require administrative or root permissions?
Answer
C. sudo
27
What converts ac voltages into diļ¬erent dc outputs?
Answer
B. SMPS
28
Which is an OS?
Answer
C. Microsoft Windows
29
Which linux command edits user account ļ¬elds and specify primary and secondary group membership?
Answer
B. usermod
30
Write the linux command to remove the users home directory along with users mail directory.
Answer
A. userdel-r
31
Name the linux directory that stores users personal ļ¬les, directories and programs which is accessible by system administrators and users.
Answer
B. /home
32
Write the linux command to rename a ļ¬le.
Answer
C. mv
33
Which is the fastest memory that stores instruction codes and data which are to be Currently executed by the CPU?
Answer
B. Cache
34
Which of the following is not a pointing device?
Answer
D. Digitizer
35
OCR stands for
Answer
B. Optical Character Reader
36
BIOS means
Answer
A. Basic Input Output System
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?
Answer
B. South bridge
38
Full form of SCSI
Answer
C. Small Computer System Interface
39
A deadlock situation arise if the following condition arises
Answer
D. All the above
40
Synchronization tool used to overcome the critical section problem
Answer
C. Semaphore
41
Expansion card that connects a computer to a network
Answer
A. Network Interface Card
42
Which is execution time memory?
Answer
B. RAM
43
Booting is the process of loading
Answer
C. Operating System
44
What is the full form of HDMI?
Answer
D. High-Deļ¬nition Multimedia Interface
45
Which is the internal command of DOS?
Answer
D. all the above
46
Which of the following layer of ISO OSI reference model is responsible for Source-to-destination delivery of packets across multiple networks?
Answer
C. Network layer
47
How many wires are there in a Category 5 cable?
Answer
D. 8 wires
48
Which of the following IP address is used for loop back testing?
Answer
A. 127.0.01
49
Which of the following is a Multiple Access Protocol?
Answer
A. ALOHA
50
CSMA stands for
Answer
B. Carrier Sense Multiple Access
51
Cross connected Registered Jack-45 cable is used to connect which of the following devices in a LAN
Answer
B. Computer to Computer
52
Which of the following is a class C IP address?
Answer
D. All the above
53
Wired Equivalent Privacy is protocol used in
Answer
A. WiFi
54
The default subnet mask 255.255.255.0 is a
Answer
C. Class C network
55
Which of the following a correct statement?
Answer
B. TCP is a connection oriented protocol and IP is a connection less protocol
56
Which of the following is an Internet Service?
Answer
D. All the above
57
Which one changes the link-layer address of the source and destination packets?
Answer
B. Switch
58
WiFi is an IEEE _________ WLAN
Answer
A. 802.11 Standard
59
Which one regenerates the signal, check the network physical address of packets and check the network layer address?
Answer
B. Router
60
Which of the following network topology uses less cabling?
Answer
C. Bus Topology
61
No of bits a subnet mask contains
Answer
D. 32 bits
62
Which protocol carries ļ¬le requests from web browser clients to web servers and the ļ¬les from the servers to client?
Answer
D. HTTP
63
Linux command used for checking the network connectivity between two nodes.
Answer
C. ping
64
Forwarding the frame into its diļ¬erent ports, after checking the source and destination address of a frame, is the responsibility of
Answer
B. Switch
65
Which Linux command is used to conļ¬gure the wireless network interface. It is used to set and view the basic WI-FI details like SSID and encryption?
Answer
D. iwconļ¬g
66
Which of the following is suitable to display same as
Answer
D. K=logb<(bk
67
Which of the following is used to override the text "Good Morning" from right to left?
Answer
C. Good Morning
68
Which of the following is used to embed http://www.kerala.gov.in webpage in the current webpage?
Answer
C.
69
Which of the following is most suitable for restricting input to 20 characters?
Answer
A.
70
What is the use of alt attribute of ![]()
tag?
Answer
A. To specify a message when the browser is unable to display the image
71
What will show on executing the following JavaScript?
Answer
A. 7
72
What will be the value of x after executing the following JavaScript statement? var x=20+/0/.exec("2020")+22;
Answer
B. 20022
73
What is the output of the following JavaScript?
Answer
B. 6
74
What will be the result of the following JavaScript?
Answer
B. 9
75
What will be the output of the following JavaScript?
Answer
Question Cancelled
76
The output of the following script is
Answer
A. Kerala State
77
What will be the output of the following script? $a=-1 while ($a++){ echo "$a";} echo $a; ?>
Answer
D. 01
78
What is the diļ¬erence between include and require statements in PHP?
Answer
A. require will produce a fatal error and stop the script, while include will only produce a warning and the script will continue
79
Which of the following is used in PHP to invoke a method?
Answer
C. $object->methodname()
80
Which feature of PHP allows calling one or more methods in single instruction?
Answer
D. method chaining
81
Which of the following VBScript event occurs when the element loses focus?
Answer
C. onblur
82
Which of the following VBScript function is used to test if a variable is uninitialized?
Answer
B. IsEmpty()
83
If A=10 and B=2, what is the value of C in the VBScript statement C=A & B?
Answer
D. 102
84
Which of the following VBScript function is used to get the last occurrence of one string within another string?
Answer
B. InstrRev
85
Which of the following operator is used in VBScript to ļ¬nd the remainder of integer division?
Answer
C. MOD
86
Which of the following method is used to ļ¬nd HTML elements?
Answer
A. document.getElementById()
87
Which of the following is used to return all elements that have a href attribute?
Answer
D. document.links
88
In what way DOM represents a webpage?
Answer
D. Tree-like structure
89
Which of the following object has information about which browser is being used?
Answer
A. Navigator
90
Which of the following deļ¬nes a standard set of objects for any structured document?
Answer
B. Core DOM
91
Which printer part gets the toner from the photosensitive drum onto the paper?
Answer
B. Transfer corona assembly
92
What is printing in duplex?
Answer
A. Printing on both sides of the paper
93
Which stage of the laser printing process involves extreme heat?
Answer
C. Fusing
94
Which of the following feeder mechanism Laser Printer uses?
Answer
C. Friction feed
95
What is the proper order of the laser printing process?
Answer
A. Process, charge, expose, develop, transfer, fuse and clean
96
What part must be vacuumed or replaced periodically to prevent damage caused by the action of the corona?
Answer
A. The ozone ļ¬lter
97
Which component in the laser printer prepares the image on the photosensitive drum?
Answer
D. Primary corona
98
At what voltage does the secondary corona wire charge the paper?
Answer
B. +600V
99
Which of the following is not a function of a typical multi function printer?
Answer
D. Barcode Scanner
100
What is the need for a fuser unit in a laser printer?
Answer
A. To permanently bond toner to a substrate by applying heat and pressure
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