1. How do you ensure that you base your software plans, work items and products on the requirement?

Breaking down the requirements into use-cases and unit test
plans before starting the design ....

if into product development / long term development -
automate these use cases and unit tests into regression
tests ... otherwise, just have a check-list document in
every phase of code-delivery, before sending it to testing
for the QA teams ....

4. What will you do if you find that you cannot meet the requirements?

THIS CHANGES YOU FIND ONCE YOU DO THE GAP ANALYSIS, THEN
TLAK TO CUSTOMER AND CHNAGE OR GIVE PROCESS PATH TO ACHIVE
THIS REQUIREMENT

5. If you had an infinite supply of water and a 5 quart and 3 quart pail, how would you measure exactly 4 quarts?

Fill 5 quart pail and transfer to 3 quart pail. you are
left with 2 quart of water in 5 quart pail.Then remove
water from 3 quart pail and transfer that 2 quart of water
to 3 quart pail. Refill 5 quart pail again and transfer 1
quart of water to already 2 quart filled 3 quart pail. you
are left with 4 quarts of water in 5 quart pail.

6. If you are on a boat and you throw out a suitcase, will the level of water increase?

It depends on the density of the briefcase.

While the briefcase is in the boat, it will displace it's
weight in water.

If the briefcase floats after you toss it out, then it still
displaces its weight in water, and there is no change.

However, if the briefcase is heavier than water it will
displace its volume, not its weight. The amount of displaced
water will be less (which is why it sank) and the water
level will decrease.

8. There are 3 ants at 3 corners of a triangle, they randomly start moving towards another corner. What is the probability that they dont collide?

The probability is 25% because there are 3 ants all with
two possible paths and 8 total possible outcomes. But
there are two possible outcomes that the ants don't
collide. Either they move one way or the other. 2/8 = 25%.

9. If you look at a clock and the time is 3:15, what is the angle between the hour and the minute hands?

6 degrees.

It is like this:

Rule:-Difference b/w every hour is 30 degrees.

and every hour is divided in 5 parts.

at 3:15 the angle will be: 30/5=6.

11. How would you weigh a plane without using scales?

Well, if you know the thrust of the engines, and can
measure the acceleration of the aircraft, you can calculate
the mass of the plane.

12. Why are beer cans tapered at the top and bottom?

The metal on the lid of the can is significantly thicker
than the metal on the sides. This means that a great deal
of raw materials can be saved by decreasing the diameter of
the lid, without significantly decreasing the structural
integrity or capacity of the can. This results in savings
of about 15% versus a non-tapered can.

13. Why is it that hot water in a hotel comes out instantly but at home it takes time?

Simple. Hotel has customers and a customer will never wait
for things. They have to be ready to him handy. Thats why
they have a overhead tank with water heating 24*7.

Where as in home its all our schedule and we can do the way
what ever we like (:) you can't blame anybody)

Ofcourse these days getting 24*7 hot water is a quite
common in home's too..

14. Mike has $20 more than Todd. How much does each have given that combined they have $21 between them. You cant use fractions in the answer?

Todd is having $1 and Mike is having $20
Each one of them should give 1$ each , so in total they can
have $21.

16. Explain falls method?

In Royce's original waterfall model, the following phases
are followed in order:
1. Requirements specification
2. Design
3. Construction (AKA implementation or coding)
4. Integration
5. Testing and debugging (AKA validation)
6. Installation
7. Maintenance

17. Tell me difference between SAP BI & business object DW/ reporting?

A) BusinessObjects itself does not build any OLAP cubes.
SAP BW does.
B) BusinessObjects can access Non-SAP data sources.
C) SAP's cash-cow used to be ERP, BusinessObjects is all
about reporting/BI and not about providing ERP or CRM
systems, etc.
D) BusinessObjects provides far better reporting and
analysis than SAP did.
E) SAP wants to be the market leader in the BI sector, so
it bought one of the BI leaders: BusinessObjects.

18. Explain what are the purposes of a requirements document?

Requirement documents are base line for further design and development so it requirement must be documented in form of SRS by the approval of all stakeholders so changes can be make after start without any ambiguity.

19. Maximum numbers that can be formed using all the 4 digits 6 4 8 1 without repetition and which is divisible by 9?

6+4+8+1=19 which is not divisible by 9 so the nos created
from them are not divisible by 9.
so the ans is "ZERO"

20. Find the number of sides of a regular convex polygon whose angle is 40degrees?

The measure of one vertex angle of a regular polygon is given by:
where n is the number of sides of the regular polygon...and, of course, it goes without saying, that n must be an integer >2(i.e, 3, 4, 5, 6, ...).
If the measure of one vertex angle of a regular polygon is 40 degrees, then we can write:
Simplify and solve for n.
Multiply both sides by n.
Add 360 to both sides.
Subtract 40n from both sides.
Divide both sides by 140.
This is not possible since a regular polygon must have an integral numer of sides.
Conclusion:
There is no regular polygon whose vertex angle is 40 degrees