Questions

Q:

Which object, initially called the 'Whirlwind', was invented by Ives McGaffey in 1869 ?

A) Washing machine B) Electric mixer
C) Vacuum cleaner D) Blender
 
Answer & Explanation Answer: C) Vacuum cleaner

Explanation:
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Filed Under: Inventions

7 4121
Q:

The rate of heartbeat is accelerated by the harmone

A) adrenaline B) acetylcholine
C) thyroxine D) pituitrin
 
Answer & Explanation Answer: A) adrenaline

Explanation:

The hormone adrenaline also called epinephrine is known as a stress harmone. In emotional upset (like fear, anger etc.) this harmone is poured into the blood and it accelerates heart beat. The hormone acetylcholine decelerates heartbeat rate.

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Filed Under: Biology

10 4120
Q:

An element X forms an oxide XO_{_{3}}, what ihe valency of X

A) 1 B) 2
C) 3 D) 6
 
Answer & Explanation Answer: D) 6

Explanation:
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Filed Under: Chemistry

3 4120
Q:

What are the basic components in a Microprocessor?

Answer

1. Address lines to refer to the address of a block


2. Data lines for data transfer


3. IC chips


4. Processing data

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Subject: Hardware

5 4119
Q:

Numismatics is the study of

A) Numbers B) Coins
C) Stamps D) None
 
Answer & Explanation Answer: B) Coins

Explanation:

Numismatics is the study or collection of currency, including coins, tokens, paper money, and related objects.

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1 4118
Q:

A cup of hot coffee is placed on a metal table in a room. By which of the following methods does it lose heat?

A) conduction and convection only B) conduction and radiation only
C) convection and radiation only D) conduction, convection and radiation
 
Answer & Explanation Answer: D) conduction, convection and radiation

Explanation:

Part of the heat is conducted away by the metal table. Convection currents in air near the surface of the coffee are set up which accounts for some heat loss. Heat is also lost by radiation from the hot coffee to the surroundings. Most of the heat is lost by the last method.

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Filed Under: Physics

5 4118
Q:

The quickest and easiest way in word, to locate a particular word or phase in a document is to use the command

A) Replace B) Find
C) Lookup D) Search
 
Answer & Explanation Answer: B) Find

Explanation:
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Filed Under: Computer
Exam Prep: Bank Exams

11 4116
Q:

Which of the following is the world's most poisonous snake called Hydrophis ?

A) Adder B) Boa
C) Cobra D) Sea Snake
 
Answer & Explanation Answer: D) Sea Snake

Explanation:
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Filed Under: Animals and Birds
Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Bank PO

20 4115