Questions

Q:

What is the perfect page size when designing an operating system ?

Answer

The perfect paging size varies from system to system, so there is no single best when it reaches to page size. There are several factors to consider in order to come up with a fitting page size, such as paging time, page table, and its effect on the total performance of the operating system.

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3 3998
Q:

Cretinism is due to the disorder of the glands

A) Thymus B) Parathyroid
C) Thyroid D) Adrenal
 
Answer & Explanation Answer: C) Thyroid

Explanation:

Cretinism is a disease caused by hypothyroidism (less thyroxine formation) . The symptoms of the disease are retardation of mental, physical and sexual developments. potbelly, protruding tongue, dry skin etc are also indicative of this disease.

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Filed Under: Biology

9 3998
Q:

The Kinetic energy of gas molecules

A) is unaffected by temperature variations B) decreases with increase of temperature
C) increases with decrease of temperature D) increases with increase of temperature
 
Answer & Explanation Answer: D) increases with increase of temperature

Explanation:

Kinetic Energy K.E = 12mV2  or 

K.E V2, Where 'm' is the mass and 'v' is the velocity of molecules.

 

Velocity is proportional to temperature. Hence, KE is proportional to temperature and would increase with temperature.

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Filed Under: Chemistry
Exam Prep: AIEEE

18 3998
Q:

88%of 370 +24% of 210-x =118 find x

Answer

From the given equation,


88x370/100 + 24x210/100 - 118 = x


=> x = 325.6 + 50.4 - 118


x = 258.

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Subject: Database Exam Prep: CAT , Bank Exams , AIEEE
Job Role: Bank PO , Bank Clerk

7 3997
Q:

Water always contains hydrogen and oxygen in the ratio 1:8 by weight.This is in accordance with the 

A) Law of Multiple Proportions B) Law of Definite Proportion
C) Law of Conservation of mass D) Law of Reciprocal Proportions
 
Answer & Explanation Answer: B) Law of Definite Proportion

Explanation:

The Law of Definite Proportion states that the same compound, wherever found or however made, always contains the same elements combined together in the same fixede ratio by weight.

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Filed Under: Chemistry

0 3996
Q:

The first stage in the formation of coal is

A) Lignite B) Bituminous
C) Anthracite D) Peat
 
Answer & Explanation Answer: D) Peat

Explanation:

The first of the four stages of coal formation is lignite coal.

 

There are four stages of coal formation:

 

1. Peat,

 

2. Lignite,

 

3. Bituminous and

 

4. Anthracite.

The bacteria has removed a large portion of the other constituents of the plant matter and left around 25 to 34 percent.

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Filed Under: General Science
Exam Prep: GATE , CAT , Bank Exams , AIEEE
Job Role: Bank PO , Bank Clerk , Analyst

8 3996
Q:

Slip rings are usually made of

A) Aluminium B) Copper
C) Phosphor Bronze D) Carbon
 
Answer & Explanation Answer: C) Phosphor Bronze

Explanation:

A Slip ring is a ring in a dynamo or electric motor which is attached to and rotates with the shaft, passing an electric current to a circuit via a fixed brush pressing against it.

 

Slip rings are usually made of Phosphor Bronze.

 

Slip ring motors usually have a 'phase-wound' rotor. This type of rotor has a 3-phase, double-layer, distributed winding consisting of coils used in alternators. The rotor core is made up of steel laminations which have slots to accommodate formed 3-single phase windings.

slip_rings_are_usually_made_of1535005379.png image

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Filed Under: Physics
Exam Prep: AIEEE , Bank Exams , CAT , GATE
Job Role: Analyst , Bank Clerk , Bank PO

3 3995
Q:

Of the following, which did not influence the fathers of Indian constitution? The Constitution of 

A) The USA B) The USSR
C) Canada D) Ireland
 
Answer & Explanation Answer: B) The USSR

Explanation:
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Filed Under: Indian History

4 3995