Questions

Q:

Rajasthan receives very little rain because

A) It is too hot B) there is no water available and thus the winds remain dry
C) the mansoons fail to reach this area D) the winds do not come across any barrier to cause the necessary uplift to cool the winds
 
Answer & Explanation Answer: D) the winds do not come across any barrier to cause the necessary uplift to cool the winds

Explanation:
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Filed Under: Indian Geography

56 14896
Q:

Ultrasonic waves are used for stirring liquid solutions because they 

A) do not produce noise during the operation B) are easy to produce
C) can produce perfectly homogeneous solutions D) do not produce chemical reactions in the solution
 
Answer & Explanation Answer: C) can produce perfectly homogeneous solutions

Explanation:
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Filed Under: Physics

87 14896
Q:

why 8085 processor, is called an 8 bit processor?

Answer

Because 8085 processor is 8 bit ALU (arithmetic logic review). Similarly 8086 processor has 16 bit ALU.

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Subject: Hardware

19 14882
Q:

Two cubes have their volumes in the ratio 1 : 27. Find the ratio of their surface areas.

A) 2:9 B) 3:9
C) 1:9 D) 4:9
 
Answer & Explanation Answer: C) 1:9

Explanation:

Let their edges be a and b. Then,

 

a3/b3 = 1/27 (or) (a/b)3 = (1/3)3 (or) (a/b) = (1/3).

 

\Ratio of their surface area = 6a2/6b2 = a2/b2 = (a/b)2 = 1/9, i.e. 1:9.

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31 14871
Q:

The nitrogen atom has 7 protons and 7 electrons,The nitride ion will have

A) 10 protons and 7 electrons B) 7 protons and 10 electrons
C) 4 protons and 7 electrons D) 4 protons and 10 electrons
 
Answer & Explanation Answer: B) 7 protons and 10 electrons

Explanation:
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Filed Under: Chemistry

42 14860
Q:

Pieces of camphor placed on water move about rapidly. This is because of

A) diffusion B) viscosity
C) surface tension D) capillarity
 
Answer & Explanation Answer: C) surface tension

Explanation:

The Camphor slowly dissolves in the water lowering the latter's surface tension in the immediate neighbourhood. The stronger pull exerted by the uncontaminated portion of water brings about a movement of the surface and the camphor particles are carried along with it. When after sometime the whole surface settles for the reduced tension, the movement of the camphor too short.

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Filed Under: Physics

66 14852
Q:

What are the various ways to measure the effectiveness of an advertising campaign?

Answer

The main purpose in measuring the effectiveness of any advertising campaigns is to evaluate its effect on the sales and also brand recall factor. The mathematical equation for measuring the effectiveness of an advertising campaign is:


Advertising campaign effectiveness = Revenue + Return on investment (ROI)


There are various ways to measure the effectiveness of advertising campaigns:


         - Conducting a survey after the campaign ends


         - Proportionate increase in the sales of that particular product/service


         - More customers calling to a toll-free and prescribed lines


         - Redemption of coupons and vouchers


         - Increased footfalls in the store to purchase product/service


         - Increased click on the company’s website  

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9 14846
Q:

Manipur has common boundaries with the group of states of

A) Meghalaya, Mizoram and Tripura B) Nagaland, Mizoram and Meghalaya
C) Nagaland, Assam and Mizoram D) Nagaland, Meghalaya and Tripura
 
Answer & Explanation Answer: C) Nagaland, Assam and Mizoram

Explanation:
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Filed Under: Indian Geography

53 14844