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Q:

The GPS device in an automobile uses which communication channel?

A) Satellite B) Microwave
C) Radio frequency D) Infrared
 
Answer & Explanation Answer: A) Satellite

Explanation:

All automobiles uses satellite communication channel for their GPS devices.

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Filed Under: Physics
Exam Prep: AIEEE , Bank Exams , CAT , GATE
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Q:

General Knowledge, Language, And Concepts Are Seen As Parts Of

A) procedural memories B) semantic memory
C) declarative memories D) episodic memory
 
Answer & Explanation Answer: B) semantic memory

Explanation:
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Filed Under: General Awareness
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Q:

Who invented the battery?

A) John Wilkinson B) Alessandro Volta
C) James Hargreaves D) Thomas Edison
 
Answer & Explanation Answer: B) Alessandro Volta

Explanation:
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Filed Under: Inventions

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Q:

A battlefield always has:

A) Elephants B) Soldiers
C) Arrows D) Chariots
 
Answer & Explanation Answer: C) Arrows

Explanation:
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Filed Under: General Awareness
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Q:

A copper wire of radius r and length lhas a resistance of R. A second copper wire with radius 2r and length lis taken and the two wires  are  joined  in  a  parallel  combination. The  resultant  resistance   of  the  parallel combination of the two wires will be

A) 5 R B) 5 R/4
C) 4 R/5 D) R/5
 
Answer & Explanation Answer: D) R/5

Explanation:

1st copper wire: R = pl/A = pl/ πr2

2ndcopper wire: R’ = p’l’/A’ = pl/(4 πr2) = R/4

If joined in parallel, (1/Req) = (1/R) + (1/R’)

= 1/R + 4/R1/Req= 5/R

Req= R/5

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Filed Under: Physics
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Q:

What is packet filter?

Answer

Packet filter is a standard router equipped with some extra functionality. The extra functionality allows every incoming or outgoing packet to be inspected. Packets meeting some criterion are forwarded normally. Those that fail the test are dropped

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Subject: Networking
Job Role: Network Engineer

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Q:

A and B entered into a partnership with Rs.800 and Rs.1600 respectively. From 9th months onward they each decided to invest Rs.100 more on starting of each month. If total annual profit is Rs.7700 then find the profit share of A.

A) Rs.2550 B) Rs.3200
C) Rs.2650 D) Rs.2450
 
Answer & Explanation Answer: C) Rs.2650

Explanation:

A : B = (800 × 8+ 900+ 1000+ 1100+ 1200): (1600 × 8+ 1700+ 1800+ 1900+ 2000)
A : B = 53 : 101
Profit of A ⇒ 7700 ×53/154 = 2650 Rs.

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Filed Under: Quantitative Aptitude - Arithmetic Ability
Exam Prep: Bank Exams , GATE

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Q:

What is consumption disease in the 19th century?

A) Tuberculosis B) Paralysis
C) Plague D) Cholera
 
Answer & Explanation Answer: A) Tuberculosis

Explanation:

Tuberculosis (TB) was the leading cause of death in the United States and one of the most feared diseases in the world during the 19th and early 20th centuries.

Formerly known as Consumption diseases because many types of lung diseases were lumped under the term 'consumption'. Lung cancer and bronchitis were examples.

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Filed Under: Indian History
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