76: Assertion (A):
An important policy instrument of economic liberalization is reduction in import duties on capital goods.
Reason (R):
Reduction in import duties would help the local entrepreneurs to improve technology to face the global markets.
In the context of the above two statements, which one of the following is correct ?
(a) Both A and R are true and R is the correct explanation of A
(b) Both A and R are true and R is not a correct explanation of A
(c) A is true but R is false
(d) A is false but R is true
77: With reference to the role of UN-Habitat in the United Nations programme working towards a better urban future, which of the statements is/are correct?
1. UN-Habitat has been mandated by the United Nations General Assembly to promote socially and environmentally sustainable towns and cities to provide adequate shelter for all.
2. Its partners are either governments or local urban authorities only.
3. UN-Habitat contributes to the overall objective of the United Nations system to reduce poverty and to promote access to safe drinking water and basic sanitation.
Select the correct answer using the code given below:
(a) 1, 2 and 3
(b) 1 and 3 only
(c) 2 and 3 only
(d) 1 only
78: Which of the following is used in diesel engine?
(1) Cylinder
(2) Spark Plug
(3) Piston
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(a) 1, 2 and 3
(b) 1 and 2
(c) 2 and 3
(d) 1 and 3
79: With reference to Indian satellites and their launchers, consider the following statements:
1. All the INSAT-series of satellites were launched abroad
2. PSLVs were used to launch IRS-series of satellites
3. India used the indigenously built cryogenic engines for the first time for powering the third stage of GSLV
4. GSAT, launched in the year 2001, has payloads to demonstrate digital broadcasts and internet services
Which of these statements are correct?
(a) 1, 2, 3 and 4
(b) 2, 3 and 4
(c) 1, 2 and 4
(d) 1 and 3
Explanation:
India used imported cryogenic engines from Russia. the Indian National Satellite (INSAT) System is multi-agency, multipurpose operational satellite system for domestic, telecommunications, meteological observations and data relay, Nation-wide direct satellite T.V. broadcasting and nationwide radio and T.V. programme distribution. The Geo-stationary satellite services in India were commissioned in 1983 with the launch of INSAT-1B.
80: Assertion (A) :
A man standing on a completely friction-less surface can propel himself by whistling.
Reason (R) :
If no external force acts on a system, its momentum cannot change.
(a) Both A and R are true, and R is the correct explanation of A
(b) Both A and R are true, but R is not a correct explanation of A
(c) A is true, but R is false
(d) A is false, but R is true
Explanation:
BY applying force in whistling on a frictionless surface a man can propel himself. As per the law of inertia, any object will remain at rest unless it experiences a force. Hence monentum cannot be changed unless an external force acts on the system.