science & tech MCQ section 6 Practice Questions Answers Test with Solutions & More Shortcuts

Question : 41

India successfully launched Astrosat from Satish Dhawan Space Centre, Sriharikotta. Consider the following statements about this launch.

1. Astrosat is India’s third dedicated multi-wavelength space observatory.
2. It was launched along with 6 foreign satellites by the ISRO’s work horse Polar Satellite Launch Vehicle-C30 (PSLV-C30).
3. It will observe the universe through ultraviolet, optical, low and high energy X-ray components of the electromagnetic spectrum.
4. This is fifth time an Indian rocket has launched seven satellites in a single mission.

a) 1, 2 and 3 only

b) 2 and 3 only

c) 1 and 2 only

d) All of these

Question : 42

Consider the following statements:

1. India has a published nuclear doctrine.
2. The doctrine advocates ‘no-first-use’ policy.
3. The authority to release nuclear weaponsfor use lies with the President of India.

a) 1 and 2 both

b) 2 and 3 both

c) 1 only

d) 1, 2 and 3

Question : 43

Which of the following statements are correct about Akash Missile?

1. It has been developed by the ISRO
2. It is a Surface to Air supersonic missile
3. It can be fired from both tracked and wheeled platforms
4. It has the capacity to carry upto 60 kg warhead

a) 1, 2 and 3 only

b) 2, 3 and 4 only

c) 1, 2 and 4 only

d) 1 and 4 only

Question : 44

Which of the following pairs regarding to Indian Navy’s ship/weapon system is/ are correct?

1. Varunastra : Torpedo
2. Mareecha : Decoy
3. INS Arihant : Submarine
4. INS Kolkata : Aircraft carrier

a) 3 and 4 only

b) 2 and 4 only

c) 1, 2 and 3 only

d) 2, 3 and 4 only

Question : 45

A new optical disc format known as the Blu-ray Disc (BD) is becoming popular. In what way is it different from the traditional DVD?

1. DVD supports Standard Definition video while BD supports high definition video
2. Compared to a DVD, the BD format has several times more storage capacity
3. The thickness of BD is 2.4 mm while that of DVD is 1.2 mm.

a) 1 and 2

b) 2 and 3

c) 1 only

d) 1, 2 and 3