16: Who / Which of the following is the custodian of the Constitution of India?

(a) The President of India
(b) The Prime Minister of India
(c) The Lok Sabha Secretariat
(d) The Supreme court of India
Explanation:
It is the judiciary that safeguard the interest of Citizens, so Supreme Court is the primary custodian of Constitution of India.
17: The "Instrument of Instructions" contained in the Government of India Act 1935 have been incorporated in the Constitution of India in the year 1950 as

(a) Extent of executive power of State

(b) Conduct of business of the Government of India

(c) Fundamental Rights

(d) Directive Principles of State Policy
18: Which one of the following Schedules of the Constitution of India contains provisions regarding Anti-Defection Act?

(a) Second Schedule
(b) Fifth Schedule
(c) Eighth Schedule
(d) Tenth Schedule
Explanation:
Tenth Schedule (Article 102(2) and 191(2) - provisions as to Disqualification on ground of defection.
19: Which of the following are matters on which a constitutional amendment is possible only with the ratification of the legislatures of not less than one-half of the States ?

I. Election of the President

II. Representation of States in Parliament

III. Any of the Lists in the 7th Schedule

IV. Abolition of the Legislative Council of a State

Choose the correct answer from the codes given below :

Codes :

(a) I, II and III

(b) I, II and IV

(c) I, III and IV

(d) II, III and IV
Explanation:
Election of the President, extent of the executive power of the Union and the States, the Supreme Court and the high courts, distribution of the legislative powers between the Union and the States, any of the lists in the Seventh schedule, Representation of States in the Parliament, provisions of Article 368, require ratification of the Legislature of not less than one half of the States for a Constitutional Amendment.
20: Consider the following statements:

1. While members of the Rajya Sabha are associated with Committees on Public Accounts and Public Undertakings, Members of Committee on Estimates are drawn entirely from Lok Sabha.
2. The Ministry of Parliamentary Affairs works under the overall direction of Cabinet Committee on Parliamentary Affairs.
3. The Minister of Parliamentary Affairs nominates members of Parliament on Committees, Councils, Boards and Commissions etc. set up by the Government of India in the various ministries.

Which of these statements are correct?

(a) 1 and 2
(b) 2 and 3
(c) 1 and 3
(d) 1, 2 and 3