Questions

Q:

Logical puzzle

You want to send a secret message to your friend Alex in the mail. But Sam, who you don't trust, has access to all your mail. So you put your message in a box with a lock. But you are not allowed to send a key! How can you get your message through securely?

Answer

- Send the box with the lock to Alex. 


- Alex can't open it, but can put another lock on the box. 


- Alex sends this box with the 2 locks back to you, you unlock your lock and send it back to Alex again.


- So there is just Alex's lock on the box and Alex can now open it.

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Subject: Logic Puzzles

17 4577
Q:

 A supertype/subtype hierarchy has which of the following features?

A) Subtypes at the lower lever in the hierarchy inherit attributes only from their immediate supertype. B) Subtypes at the higher lever in the hierarchy inherit attributes only from their immediate subtype.
C) Attributes are assigned at the highest logical level. D) Attributes are assigned at the lowest logical level.
 
Answer & Explanation Answer: C) Attributes are assigned at the highest logical level.

Explanation:
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Filed Under: Database

0 4575
Q:

The neighouring country of India which has the smallest area is

A) Bhutan B) Nepal
C) Sri Lanka D) Bangladesh
 
Answer & Explanation Answer: A) Bhutan

Explanation:
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Filed Under: Indian Geography

7 4573
Q:

A cyclist leans inwards when he is negotiating a curve so that

A) he may increase his speed B) his weight may be reduced
C) necessary centripetal force may be available from the horizontal component of the normal reaction due to the track to maintain the curved motion. D) no frictional force may be produced between the wheels and the axle
 
Answer & Explanation Answer: C) necessary centripetal force may be available from the horizontal component of the normal reaction due to the track to maintain the curved motion.

Explanation:

No circular or curved motion is possible without providing the necessary centripetal force. (C) provides this and so is the answer. 

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Filed Under: Physics

4 4570
Q:

ICRA Refers to 

A) Indian Credit Rating Agency B) Investment Creation Rationing Authority
C) Investment Credit Rating Agency D) Indian Cricket Renaissance Association
 
Answer & Explanation Answer: C) Investment Credit Rating Agency

Explanation:
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Filed Under: General Awareness

22 4567
Q:

The second Five Year plan was based on

A) Mahalanobis Model B) Vakil and Brahmananda's Wage -Goods Model
C) Harrod - Domar Growth Model D) Solow Growth Model
 
Answer & Explanation Answer: A) Mahalanobis Model

Explanation:
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Filed Under: Indian Economy

4 4567
Q:

Assuming that the phases in a project are concept, development, implementation and termination, which phase typically has the highest degree of uncertainty?

A) Concept B) Development
C) Implementation D) Termination
 
Answer & Explanation Answer: A) Concept

Explanation:

The first phase in a project always has the greatest degree of uncertainty because at this point in time the product is the least well defined. PMBOK, See figure 2-2. [2.1.1]

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Filed Under: PMP Certification

0 4563
Q:

There are two numbers such that the sum of twice the first number and thrice the second number is 300 and the sum of thrice the first number and twice the second number is 265. Which is the largest number ?

A) 24 B) 39
C) 85 D) 74
 
Answer & Explanation Answer: D) 74

Explanation:
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14 4563