science & tech MCQ section 4 Practice Questions Answers Test with Solutions & More Shortcuts
science & tech PRACTICE TEST [7 - EXERCISES]
science & tech MCQ section 1
science & tech MCQ section 2
science & tech MCQ section 3
science & tech MCQ section 4
science & tech MCQ section 5
science & tech MCQ section 6
science & tech MCQ section 7
Question : 6
Which of the following pairs are correctly matched? Substance/mineral Use
- Graphite electrode Vulcanization of rubber
- Limestone Smelting of iron
- Aluminium Mixing with other metals to provide strength and lightness
a) 1 and 3 only
b) 2 and 3 only
c) 1 and 2 only
d) All of these
Answer »Answer: (b)
Graphite electrode is used in melting of steel. Recently, the Indian government has imposed antidumping duty on import of graphite electrode to protect domestic industry.
Question : 8
Which of the following statements are correct about Dongfeng-31B?
- It has long range missile with a reach of 10,000 km.
- It can carry multiple nuclear warheads.
a) 2 only
b) Both 1 and 2
c) 1 only
d) Neither 1 Nor 2
Answer »Answer: (b)
The missile is a variant of Dongfeng-31 A with same range but improved capability in carrying warheads.
Question : 9 [SSC CGL 2015]
Which one of the following is an indigenously built light combat aircraft of India?
a) Vikrant
b) Vikrant
c) Arjun
d) Akash
Answer »Answer: (b)
Tejas is an indigenously-built Light Combat Aircraft (LCA) of the Indian Air Force. It s a single-seat, single-jet engine, multi-role light fighter developed by Hindustan Aeronautics Limited. It came from the Light Combat Aircraft (LCA) programme, which began in the 1980s to replace India’s ageing MiG-21 fighters. Later, the LCA was officially named “Tejas.”
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