GATE Questions

Q:

Which of these is NOT a lipid?

A) Wax B) Cholesterol
C) RNA D) Phospholipid
 
Answer & Explanation Answer: C) RNA

Explanation:

RNA is not a lipid among the given options.

 

A lipid is a substance of biological origin that is soluble in nonpolar solvents. It comprises a group of naturally occurring molecules that include fats, waxes, sterols, fat-soluble vitamins (such as vitamins A, D, E, and K), monoglycerides, diglycerides, triglycerides, and phospholipids.

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Filed Under: Biology
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4 4869
Q:

Express 0.875 and 0.375 as a Fraction.

A) 3/11 & 7/11 B) 7/9 & 9/13
C) 7/8 & 3/8 D) 7/9 & 9/11
 
Answer & Explanation Answer: C) 7/8 & 3/8

Explanation:

Given 0.875 and 0.375

0.875 ::

After decimal point there are 3 digits 875

Now, mutiply and divide 0.875 with 1000

0.875 x 10001000 = 8751000 Now, this can be reduced to fraction 78Therefore, 0.875 as fraction = 78

Similarly,

0.375 :: 

After decimal point there are 3 digits 375

Now, mutiply and divide 0.375 with 1000

0.375 x 10001000 = 3751000Now, this can be reduced to fraction 38Therefore, 0.375 as fraction = 38

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Filed Under: Decimal Fractions
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6 4868
Q:

Count the number of cubes in the given figure.

A) 45 B) 46
C) 48 D) 49
 
Answer & Explanation Answer: B) 46

Explanation:

In the figure, there are 21 columns containing 2 cubes each and 4 columns containing 1 cube each. 

Total number of cubes = (21 x 2) + (4 x 1) = 42 + 4 = 46.

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Filed Under: Cubes and Dice
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19 4866
Q:

Which number replaces 'x' in the below figure ?

k11483336561.jpg image

A) 2 B) 9
C) 11 D) 12
 
Answer & Explanation Answer: B) 9

Explanation:

k11483336735.jpg image

 

Here in 2nd column if you add the individual digits

 we get  3 + 7 + 0 =10 , 2 + 2 + 4 = 8 , 7 + 3 + 0 = 10

 

7   10   3  --> 7+3 =10

 

6   8     2  --> 6+2 =8

 

x   10   1  --> x+1 =10

 

Here we can observe that by adding 1st and 3rd column elements we get 2nd column elements

 --> x = 9

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Filed Under: Inserting The Missing Character
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49 4863
Q:

Two parallel chords on the same side of the centre of a circle are 5 cm apart. If the chords are 20 and 28 cm long, what is the radius of the circle? 

A) 14.69 cm B) 15.69 cm
C) 18.65 cm D) 16.42 cm
 
Answer & Explanation Answer: B) 15.69 cm

Explanation:

circle11487663359.jpg image

Draw the two chords as shown in the figure. Let O be the center of the circle. Draw OC
perpendicular to both chords. That divides the two chords in half.
So CD = 10 and AB = 14. Draw radii OA and OD, both equal to radius r.
We are given that BC = 5, the distance between the two chords. Let
OB = x.

We use the Pythagorean theorem on right triangle ABO

AO² = AB² + OB²
r² = 14² + x²

We use the Pythagorean theorem on right triangle DCO

DO² = CD² + OC²

We see that OC = OB+BC = x+5, so

r² = 10² + (x+5)²

So we have a system of two equations:

r² = 14² + x²
r² = 10² + (x+5)²

Since both left sides equal r², set the right sides
equal to each other.

14² + x² = 10² + (x+5)²
196 + x² = 100 + x² + 10x + 25
196 = 125 + 10x
71 = 10x
7.1 = x

r² = 14² + x²
r² = 196 + (7.1)²
r² = 196 + 50.41
r² = 246.41
r = √246.41
r = 15.69745202 cm

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Filed Under: Simplification
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4 4863
Q:

In latest generation computers, the instructions are executed

A) Sequentially only B) Parallelly only
C) Both sequentially and parallelly D) None of the above
 
Answer & Explanation Answer: C) Both sequentially and parallelly

Explanation:

In_latest_generation_computers,_the_instructions_are_executed1556257673.jpg image

 

In latest generation computers, the instructions are executed both sequencially and parallelly.

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3 4863
Q:

How many Months of the year have 28 Days?

A) 12 B) 7
C) 5 D) 6
 
Answer & Explanation Answer: A) 12

Explanation:

We have 12 months.

In every month we get 28 or more days. 

So that implies we get 28 days in each and every month.

 

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Filed Under: Logic Puzzles
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8 4861
Q:

Which among the following is a system call used for process management

A) fork() B) exec()
C) getppid() D) All the above
 
Answer & Explanation Answer: D) All the above

Explanation:

All the above listed are the System calls for process management

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Filed Under: Operating Systems
Exam Prep: GATE
Job Role: Software Architect

0 4858