Questions

Q:

Suppose you have a computional circuit between two registers driven by a clock. What will you do if the delay of the combinational circuit is greater than your clock signal?

Answer

Use the concept of register-retiming.


divide the totla combinatorial delay in two segments such that individually the delay is less the clock period.


this can be done by inserting a flip-flop in the combinational path.


e.g.,


clock period --- 5 ns


total cominational delay ---- 7


then divide the 7ns path in two path of 4 or 3 (best resutls are obtained if delays are  same for both path i.e 3.5ns) by inserting a flip-flop in between.

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Subject: Hardware

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Q:

Acidity in human sweat is an example of

A) acquired immunity B) innate immunity
C) cell-mediated immune responses D) adaptive immunity
 
Answer & Explanation Answer: B) innate immunity

Explanation:
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Q:

Who was appointed as Director of the Central Bureau of Investigation in the year 2017 ?

A) Alok Kumar Verma B) Anil Sinha
C) Rakesh Asthana D) None
 
Answer & Explanation Answer: A) Alok Kumar Verma

Explanation:

Senior IPS officer Alok Kumar Verma, Delhi Police Commissioner was appointed as new Director of the Central Bureau of Investigation. He will have tenure of two years. He was selected by a three-member committee comprising Prime Minister Narendra Modi, Chief Justice J S Khehar and Congress leader Mallikarjun Kharge. He will take over from interim director Rakesh Asthana, who was handed the reins of the premier investigating agency after former director Anil Sinha retired on December 2, 2016.

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Q:

Who among the following was the 1st Speaker of the Lok Sabha?

A) M.A Ayyanga B) N Sanjiva Reddy
C) Ganesh Vasudev Mavalankar D) Sardar Hukam Sing
 
Answer & Explanation Answer: C) Ganesh Vasudev Mavalankar

Explanation:

Ganesh Vasudev Mavalankar popularly known as Dadasaheb was an independence activist, the President of the Central Legislative Assembly, then Speaker of the Constituent Assembly of India, and later the first Speaker of the Lok Sabha, the lower house of the Parliament of India.

first_Speaker_of_the_Lok_Sabha1543835822.jpg image

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Q:

How do you detect if two 8-bit signals are same?

Answer

Pass input to XOR and give their outputs to OR gate, if your output is 0 both 8-bit signals are same.


OR


Pass input to XNOR and give their outputs to AND gate, if your output is 1 both 8-bit signals are same. 

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Subject: Hardware

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Q:

 A transaction for which all committed changes are permanent is called:

A) atomic. B) consistent.
C) isolated. D) durable.
 
Answer & Explanation Answer: D) durable.

Explanation:
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Q:

What measures Air pressure?

A) Barkometer B) Bolometer
C) Spectrometer D) Barometer
 
Answer & Explanation Answer: D) Barometer

Explanation:

Air Pressure can be defined as the pressure of air in the earth's atmosphere. It reaches a maximum of about 100,000 Pa near sea level and decreases as altitude increases.

The barometer is an instrument which is used for measuring Air pressure.

 

Physics instruments and their uses:

 

Barkometer  - - - Tanning liquors used in tanning leather

Bolometer  - - - Electromagnetic radiation

Spectrometer - - -  Properties of light.

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Q:

When is the International Firefighters' Day(IFFD) observed every year ?

A) 2 May B) 4 May
C) 3 May D) 6 May
 
Answer & Explanation Answer: B) 4 May

Explanation:

International Firefighters' Day (IFFD) is observed on May 4. It was instituted after proposal emailed out across the world on January 4, 1999 due to the deaths of five firefighters in tragic circumstances in a bushfire in Australia.

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