Question Discussion & Solution

The correct answer is In 1976.

• In 1976 the Indian Postal and Telegraph Department issue a commemorative postage stamp in honour of Pandit Hiralal Shastri.

Key Points

• Pandit Hiralal Shastri 
  • ​​The Indian Posts and Telegraphs Department issued a commemorative postage stamp in November 1976 in honour of Pandit Hiralal Shastri.

​Additional Information 

• Pandit Hiralal Shastri ​
  • Hiralal Shastri was born at Jobner in Jaipur.
  • In 1929, Hiralal Shastri selected a remote and backward village Banasthali, Jaipur and founded 'Jeevan Kutir' there.
  • Here he trained a group of social workers and endeavoured to implement a programme of rural reconstruction.
  • In 1937 he joined Jaipur Rajya Praja Mandal and he was twice elected General Secretary and twice President of it.
  • In 1939 he led the Praja Mandal's Satyagraha for the achievement of civil liberties and suffered six-month imprisonment.
  • In 1947 he was appointed General Secretary of the All India States Peoples Conference.

The correct answer is Primary key.

Key Points

• The foreign key is not necessarily the primary key in its current table.
  • It only has to contain the same information that is held in another table’s primary key.
  • Foreign keys are the columns of a table that points to the primary key of another table. They act as a cross-reference between tables.

Additional Information​ 

• A report generator is a computer program whose purpose is to take data from a source such as a database, XML stream or a spreadsheet, and use it to produce a document in a format which satisfies a particular human readership.
• The data dictionary is a set of information describing the contents, format, and structure of a database and the relationship between its elements, used to control access to and manipulation of the database.
• Schema objects are logical structures created by users. Objects such as tables or indexes hold data or can consist of a definition only, such as a view or synonym.

Saw is used for cutting wood.

Similarly, Scythe is used for cutting Grass.

The correct answer is Shift + Space.

• Short-cut key to Select entire row in M.S. Excel Worksheet is Shift + Space.

Key Points

• This table lists the most frequently used shortcuts in Excel.

Explanation:

Option 1 is correct, i.e. Anthracite.

• Anthracite, also called the hard coal is a highly metamorphosed form of coal.
• The calorific value of a substance is defined as the amount of heat released by a unit weight of a substance during complete combustion.
• Anthracite coal has the highest calorific value.

Anthracite is a type of coal that has the highest carbon content.

• Anthracite: 87-96%
• Bituminous: 45-86%
• Lignite: 25 - 35%

Extra information:​

• The most common volatile matter in coal is water, carbon dioxide, and sulfur dioxide.
•  Volatile matter is directly related to coal rank; as coal rank increases, volatile matter content decreases.
• Peat has the highest volatile matter.