science & tech MCQ section 7 MCQ Questions & Answers Detailed Explanation

Question : 1

White LED light is produced by making certain combination of which of the following LED lights?

1. Red
2. Blue
3. Green
4. Yellow

a) 3 and 4 only

b) 1 and 4 only

c) 1, 2 and 3 only

d) All of the above

Question : 2

Consider the following statements.

1. China launched its most sophisticated observation satellite Gaofen-3.
2. It is part of the country’s high-definition (HD) earth observation Gaofen project.
3. The satellite is China’s first geosynchronous orbit high-definition optical imaging satellite.

a) 1 and 3

b) 2 and 3

c) 1 and 2

d) All of these

Question : 3

In 2014, US scientists genetically engineered a plant to produce more eugenol. The engineered plant is :

a) Neem

b) Capsicum

c) Mango

d) Basil

Question : 4

Which of the following statements are correct?

1. Space Pioneer Award is conferred by the US government.
2. The team of ISRO’s Mars Mission has been awarded 2015 award in the Science and Engineering category.

a) 2 only

b) Both 1 and 2

c) 1 only

d) Neither 1 Nor 2

Question : 5

Which among the following do/does not belong/belongs to the GSM family of wireless technologies?

a) LTE

b) DSL

c) EDGE

d) (a) and (b)both