Q.1: The price of petrol increases by 25%. By what percentage must a customer reduce the consumption so that the earlier bill on the petrol does not alter?
a) 20% b) 25% c) 30% d) 33.33%
Ans: a) 20%
(Explanation)
{r/(100+r)×100}%= 25/125×100=20%
Q.2: If Ram knows that y is an integer greater than 2 and less than 7 and Hari knows that y is an integer greater than 5 and less than 10, then they may correctly conclude that
a) y can be exactly determined
b) y may be either of two values
c) y may be any of three values
d) there is no value of y satisfying these conditions
Ans: a) y can be exactly determined
Directions (Q.3 -4) Read the following information carefully and answer the question given below it. The total electricity generation in a country is 97 GW. The contribution of various energy sources is indicated in percentage terms in the Pie chart given below:
Q.3 What is the contribution of wind and solar power in absolute terms in the electricity generation?
a) 6.79 GW b) 19.4 GW c) 9.7 GW d) 29.1 GW
Ans: a) 6.79 GW
(Explanation)
Total electricity generation = 97 GW
Wind and solar energy contribution = 7% of 97
= 7/100×97= 6.79 GW
Q.4: What is the contribution of renewable energy sources in absolute terms in the electricity generation?
a) 29.1 GW b) 26.19 GW c) 67.9 GW d) 97 GW
Ans: b) 26.19 GW
(Explanation)
Total electricity generation = 97 GW
Wind and Solar energy contribution + Hydro power energy
Wind and solar energy contribution = 7% of 97
= 7/100×97= 6.79 GW
Hydro power energy contribution
= 20/100×97= 19.4 GW
= 6.79 GW + 19.4 GW
= 26.19 GW
Q.5: TCP/IP is necessary if one is to connect to the
a) Phone Lines b) LAN c) Internet d) A Server
Ans: b) LAN
(Fact)
Transmission Control Protocol (TCP) ensures that data is delivered reliably between devices.
Internet Protocol (IP) assigns a unique address to each device on the internet, allowing it to communicate with other devices.
Q.6: Each character on the keyboard of computer has an ASCII value which stands for
a) American Stock Code for Information Interchange
b) American Standard Code for Information Interchange
c) African Standard Code for Information Interchange
d) Adaptable Standard Code for Information Change
Ans: b) American Standard Code for Information Interchange
(Fact)
American Standard Code for Information Interchange (ASCII) is a standard way of translating characters to and from binary digits that computers can understand. Computers can only store data as Os ad 1s.
Q.7: Which of the following is not a programming language?
a) Pascal b) Microsoft Office c) Java d)C++
Ans: b) Microsoft Office
Q.8: Minimum number of bits required to store any 3 digit decimal number is equal to
a) 3 b) 5 c) 8 d) 10
Ans: d) 10
Q.9: Internet explorer is a type of
a) Operating system
b) Compiler
c) Browser
d) IP address
Q.10: POP3 and IMAP are e-mail accounts in which
a) one automatically gets one’s mail everyday
b) one has to be connected to the server to read or write one’s mail
c) one only has to be connected to the server to read or write one’s mail
d) one does not need any telephone lines
Ans: b) one has to be connected to the server to read or write one’s mail
(Fact)
Post Office Protocol 3 (POP3) and Internet Message Access Protocol (IMAP) are both email protocols that allow you to access your email from a remote server. The main difference between the two is that POP3 downloads emails to a single device, while IMAP syncs emails across multiple devices.