Questions

Q:

When a piece of pure silicon is doped with aluminium, then

A) the conductivity of the doped silicon piece will remain the same B) the doped silicon piece will become n-type
C) the doped silicon piece will become p-type D) the resistivity of the doped silicon piece will increase
 
Answer & Explanation Answer: C) the doped silicon piece will become p-type

Explanation:

p type of semiconductor is obtained when Silicon is doped with a trivalent impurity like Aluminium. Aluminium is a p-type dopant, which means that when a semiconductor i.e. silicon is doped with aluminium, it creates a hole (positively charged carrier) by accepting an electron from the silicon atom. Electrical conductivity of semiconductors increasesand resistivity remains the same

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Filed Under: Physics
Exam Prep: Bank Exams

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Q:

Valley of the Kings is located in which country?

A) Tanzania B) Italy
C) Egypt D) Turkey
 
Answer & Explanation Answer: C) Egypt

Explanation:
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Filed Under: Famous Places

3 3021
Q:

Primitive people practice animal rearing  in the tropical grasslands of _______

A) Brazil B) Northern Australia
C) East Africa D) Orinoco Basin in South America
 
Answer & Explanation Answer: C) East Africa

Explanation:
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Filed Under: World Geography

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Q:

The famous Sun Temple is located in which Indian state

Answer

Orissa

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Subject: Indian Culture

38 3021
Q:

In 1933 congress repealed prohibition with the

A) 21st Amendment B) 20th Amendment
C) 19th Amendment D) 18th Amendment
 
Answer & Explanation Answer: A) 21st Amendment

Explanation:

In 1933, Congress repealed prohibition with the 21st amendment. At it’s heart, the scopes trial was a clash between religion and science. Nativists were opposed to immigration because they feared that immigration would be a damage to America’s traditions and that it would result in a loss of jobs.

The Prohibition Era in United States history lasted from 1919 to 1933. It was defined by a complete prohibition of the manufacturing, sale, and transportation of alcoholic beverages in the United States.

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Filed Under: World History
Exam Prep: Bank Exams
Job Role: Bank Clerk , Bank PO

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Q:

Gun gopi krrishna was a maestro of which of the follwing dance forms

A) Manipuri B) Bharatanatyam
C) Kuchipudi D) Kathak
 
Answer & Explanation Answer: D) Kathak

Explanation:
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Filed Under: Famous Personalities

0 3019
Q:

What are the static and dynamic hazards in logic circuits?

Answer

If for a short period of time circuits goes to some different logic level then it is spposed to have then it is called static hazard. e.g., If the final logic value of output of given circuit becomes one vent if if is supposed to be zero then it is called static-0 Hazard and vice versa. Dynamic Hazard is the one in which the circuit output goes to some other logic level more than once then finally settling down to some appropriate level.

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Subject: Hardware

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Q:

A sentence whose meaning is unclear

A) Anonymous B) Ambiguous
C) Unanimous D) Congruent
 
Answer & Explanation Answer: B) Ambiguous

Explanation:

A sentence whose meaning is unclear is called as Ambiguous.

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Filed Under: English
Exam Prep: AIEEE , Bank Exams , CAT , GATE , GRE , TOEFL
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