Science & Technology – 200 MCQs (Page 4)

Shaktimatha Learning – Competitive Exams Special

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MCQs (121–160)

121. Example of renewable energy?
A) Coal
B) Petrol
C) Solar energy
D) Diesel

122. Which is non-renewable energy?
A) Wind
B) Solar
C) Coal
D) Water

123. Function of solar panel?
A) Produce heat
B) Produce electricity
C) Store energy
D) None

124. Wind energy is generated from?
A) Water
B) Air movement
C) Heat
D) Light

125. Hydroelectric power is generated from?
A) Air
B) Sun
C) Water
D) Soil

126. Fossil fuels are?
A) Renewable
B) Non-renewable
C) Unlimited
D) Clean

127. Cause of global warming?
A) Oxygen
B) Carbon dioxide
C) Nitrogen
D) Hydrogen

128. Example of greenhouse gas?
A) Oxygen
B) CO₂
C) Nitrogen
D) Helium

129. Function of ozone layer?
A) Increase heat
B) Protect from UV rays
C) Rainfall
D) Wind

130. Pollution means?
A) Clean air
B) Contamination
C) Energy
D) Water

131. Advantage of electric vehicles?
A) More pollution
B) Less pollution
C) Noise
D) Fuel use

132. Function of battery?
A) Store energy
B) Produce energy
C) Destroy energy
D) None

133. Nuclear energy is produced by?
A) Chemical reaction
B) Nuclear reaction
C) Air
D) Water

134. Robotics is used in?
A) Industry
B) Medicine
C) Defence
D) All of the above

135. AI is used in?
A) Healthcare
B) Banking
C) Education
D) All of the above

136. Machine Learning is part of?
A) AI
B) Hardware
C) Network
D) Device

137. Data Science means?
A) Data analysis
B) Storage
C) Hardware
D) Network

138. Big Data means?
A) Small data
B) Large data sets
C) Device
D) Software

139. Cloud storage advantage?
A) Online storage
B) Offline storage
C) Hardware
D) Device

140. Cyber crime is?
A) Legal activity
B) Illegal online activity
C) Hardware
D) Software

141. Firewall is used for?
A) Security
B) Storage
C) Input
D) Output

142. Antivirus is used for?
A) Speed
B) Protection
C) Storage
D) Output

143. Encryption is used for?
A) Security
B) Storage
C) Output
D) Input

144. Blockchain is used for?
A) Digital records
B) Storage
C) Hardware
D) Network

145. Cryptocurrency is?
A) Digital money
B) Paper money
C) Coin
D) None

146. Drone is used for?
A) Survey
B) Delivery
C) Defence
D) All of the above

147. Satellite is used for?
A) Communication
B) Weather
C) Navigation
D) All of the above

148. GPS is used for?
A) Location tracking
B) Storage
C) Input
D) Output

149. Space technology is used for?
A) Communication
B) Weather
C) Navigation
D) All of the above

150. Biotechnology is used in?
A) Agriculture
B) Medicine
C) Food production
D) All of the above

151. Genetic engineering means?
A) DNA modification
B) Hardware
C) Software
D) Network

152. Vaccine works by?
A) Killing disease
B) Building immunity
C) Storing energy
D) None

153. Pandemic means?
A) Local disease
B) Global disease spread
C) Device
D) Network

154. Telemedicine means?
A) Remote treatment
B) Hospital
C) Device
D) Software

155. Advantage of 5G?
A) Slow internet
B) Fast internet
C) No internet
D) None

156. Internet of Things (IoT) means?
A) Connected devices
B) Connected people
C) Connected data
D) None

157. Smart city means?
A) Digital city
B) Village
C) Hardware
D) Network

158. Aim of Digital India?
A) Digital services
B) Agriculture
C) Defence
D) None

159. E-governance means?
A) Digital government services
B) Manual work
C) Offline work
D) None

160. Startup means?
A) New business
B) Old business
C) Device
D) Network

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Answer Key (121–160)

121. C
122. C
123. B
124. B
125. C
126. B
127. B
128. B
129. B
130. B
131. B
132. A
133. B
134. D
135. D
136. A
137. A
138. B
139. A
140. B
141. A
142. B
143. A
144. A
145. A
146. D
147. D
148. A
149. D
150. D
151. A
152. B
153. B
154. A
155. B
156. A
157. A
158. A
159. A
160. A

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