Questions

Q:

A watch which gains uniformly is 2 minutes low at noon on Monday and is 4 min. 48 sec fast at 2 p.m. on the following Monday. When was it correct?

A) 2 p.m. on Tuesday B) 2 p.m. on Wednesday
C) 3 p.m. on Thursday D) 1 p.m. on Friday
 
Answer & Explanation Answer: B) 2 p.m. on Wednesday

Explanation:

 Time from 12 p.m. on Monday to 2 p.m. on the following Monday = 7 days 2 hours = 170 hours. 

 The Watch gains 2+445 min.  or 345  min.in 170 hrs. 

Now,  345min.are gained in 170 hrs. 

  2 min.are gained in170*534*2 hrs=50 hrs 

 Watch is correct 2 days 2 hrs. after 12 p.m. on Monday i.e., it will be correct at 2 p.m. on Wednesday

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Filed Under: Clock puzzles

243 68866
Q:

Which of the following reactions are exothermic?

 

1)   C + O2   CO22)  2Mg + O2   2MgO3)  CuSO4 + 5H2O   CuSO4.5H2O4)  All the above

A) 1 B) 2
C) 3 D) 4
 
Answer & Explanation Answer: D) 4

Explanation:

Here all the given options are Exothermic reactions. Exothermic reactions are those reactions which involves the release of heat.

 

Generally all the combining reactions are exothermic in nature.

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Filed Under: Chemistry
Exam Prep: AIEEE , Bank Exams , CAT , GATE
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13 68313
Q:

Choose the pure substance from the list below.

 

A) Sugar B) Lemonade
C) Air D) Sea water
 
Answer & Explanation Answer: A) Sugar

Explanation:
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Filed Under: Chemistry
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3 67733
Q:

________ is the process of dividing the disk into tracks and sectors

A) Tracking B) Formatting
C) Crashing D) Allotting
 
Answer & Explanation Answer: B) Formatting

Explanation:

The process of dividing the disk into tracks and sectors is called as formatting.

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Filed Under: Computer
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416 67649
Q:

What is the Iupac name for the compound shown below.

                           clbr1527920257.png image

A) 1-Bromo-3-chlorocyclohexene B) 2-Bromo-6-chlorocyclohex-1-ene
C) 6-Bromo-2-chlorocyclohexene D) 3-Bromo-1-chlorocyclohex-1-ene
 
Answer & Explanation Answer: D) 3-Bromo-1-chlorocyclohex-1-ene

Explanation:

In chemical nomenclature, the IUPAC nomenclature of organic chemistry is a systematic method of naming organic chemical compounds as recommended by the International Union of Pure and Applied Chemistry (IUPAC).

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Filed Under: Chemistry
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43 67492
Q:

Sort each description by the type of RNA it describes?

a) contains an anticodon
b) specifies the amino acid squence for a protein
c) contains exons
d) has amino acids covalently attached
e) is a component of ribosomes
f) is the most abundant form of RNA

A) a, b, d - tRNA, c - mRNA, e, f - rRNA B) a, c - tRNA, b, d - mRNA, e, f - rRNA
C) a, e, f - rRNA, b - mRNA, c, d - tRNA D) None of the above
 
Answer & Explanation Answer: A) a, b, d - tRNA, c - mRNA, e, f - rRNA

Explanation:

Option A) 

a, b, d - tRNA, c - mRNA, e, f - rRNA

 

Is the given sorted description that describes the RNA type.

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Filed Under: Biology
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41 67189
Q:

From the following pairs, find the one which is correctly matched?

 

A) Scurvy- Thiamine B) Tuberculosis- ATS
C) Tetanus- BCG D) Malaria- Chloroquine
 
Answer & Explanation Answer: D) Malaria- Chloroquine

Explanation:

Chloroquine is a medication used to prevent and to treat malaria.

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Filed Under: Biology
Exam Prep: AIEEE , Bank Exams
Job Role: Analyst

76 66470
Q:

The function of BIOS is to

 

A) Initialize the system hardware components B) Update the system
C) Ensure system performance D) Save the system from crashing
 
Answer & Explanation Answer: A) Initialize the system hardware components

Explanation:
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Filed Under: Computer
Exam Prep: Bank Exams

28 66387