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Q:

Multiplicative inverse of 7?

A) 1 B) -1/7
C) 0 D) 1/7
 
Answer & Explanation Answer: D) 1/7

Explanation:

Multiplicative inverse is nothing but a reciprocal of a number. 

It is defined as one of a pair of numbers that when multiplied with another number equals the number 1.

Multiplicative inverse or reciprocal of 7 is 

7 x n = 1

=> n = 1/7.

 

Hence, Multiplicative inverse or reciprocal of 7 is  1/7.

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Filed Under: Arithmetical Reasoning
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Q:

Work done in a free expansion process is

A) Minimun B) 0
C) Maximum D) None of the above
 
Answer & Explanation Answer: B) 0

Explanation:

No work done as there is no external external pressure in free expansion. 

 

Hence, Work done in a free expansion process is Zero.

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Filed Under: Physics
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Q:

In the circle above, chord AB is extended to meet the tangent DE at D. If AB = 12 cm and DE = 8 cm, find the length of BD.

A) 4 cm B) 5 cm
C) 6 cm D) 7 cm
 
Answer & Explanation Answer: A) 4 cm

Explanation:
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Filed Under: Area
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Q:

The Motto of Defence academy?

A) Do or Die B) Service Before Self
C) YES, OF COURSE WE CAN, RIGHT? D) Yours is here
 
Answer & Explanation Answer: B) Service Before Self

Explanation:

The National Defence Academy is formed by combining the cadets of three services Army, Navy and Air force. The Defence academy established on 7 December 1954. Its motto is "Service Before Self."

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Filed Under: General Awareness
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Q:

Human body main organ of balance is located in

A) Brain B) Eyes
C) Ears D) Nose
 
Answer & Explanation Answer: C) Ears

Explanation:

Labyrinth which is part of the ear is the main organ of balance in the human body.

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Filed Under: General Science
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Q:

Ticket for an adult is Rs 1600 and a child is Rs 1200. 1 child goes free with two adults. If a group has 23 adults and 10 children what is the discount the group gets?

A) 25.95 percent B) 24.59 percent
C) 25.77 percent D) 31.60 percent
 
Answer & Explanation Answer: B) 24.59 percent

Explanation:
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Filed Under: Percentage
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Q:

World Consumer Rights Day is observed globally on ___________.

A) 15 March B) 25 March
C) 14 March D) 25 April
 
Answer & Explanation Answer: A) 15 March

Explanation:

World Consumer Rights Day is being observed globally on 15 March which is an awareness day for the consumers.

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Filed Under: Important Days and Years
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Q:

Cast iron during machining produces

A) Discontinuous chips B) Continuous chips with build up edge
C) Continuous chips D) All of the above
 
Answer & Explanation Answer: A) Discontinuous chips

Explanation:

Cast iron is a group of iron-carbon alloys with a carbon content greater than 2% and is a brittle material.

cast_iron_during_machining_produces1545889160.jpg image


Its usefulness derives from its relatively low melting temperature.

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Filed Under: Physics
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