DSSC Signals and Engineers Academic Test Electrical Mechanical Telecom Civil Engineering Mock 5

384467000 is equal to

1 Mark(s)

Your Answer:

A) 3.84467 × 10 8 A) 3.84467 × 10 8
B) 3.84467 × 10 3 B) 3.84467 × 10 3
C) 3.84467 × 10 7 C) 3.84467 × 10 7
D) 3.84467 × 10 6 D) 3.84467 × 10 6

Assertion (A) The sequence 1, 3, 6,10,… is called Triangular Numbers. Reason (R) The sequence 1, 4, 9, 16,… is called squares.

1 Mark(s)

Your Answer:

A) Both A and R are true and R is the correct explanation of A.
B) Both A and R are true but R is not the correct explanation of A.
C) A is true but R is false. C) A is true but R is false.
D) A is false but R is true. D) A is false but R is true.

The round off value of 78.25m to the nearest 10m is:

1 Mark(s)

Your Answer:

75m 75m
80m 80m
79m 79m
78m 78m

A rectangle has 15 cm as its length and 159 cm² as its area. Its area is increased to 1 1/3 times the original area by increasing only its length its new perimeter is:_________?

1 Mark(s)

Your Answer:

50 cm 50 cm
60 cm 60 cm
70 cm 70 cm
80 cm 80 cm

Let D and E be two points on the side BC of △ABC such that AD = AE and BAD = ∠EAC. If AB = (3x+1) cm, BD=9 cm, AC = 34 cm and EC = (y+1) cm, then the value of (x + y) is:

1 Mark(s)

Your Answer:

19 19
16 16
17 17
20 20

What is the difference between a class variable and an instance variable in Python?

1 Mark(s)

Your Answer:

A class variable is shared among all instances of a class, while an instance variable is unique to each instance
They are the same They are the same
An instance variable is shared among all instances
A class variable is unique to each instance

Three unbiased coins are tossed, then the probability of getting two heads is?

1 Mark(s)

Your Answer:

1/2 1/2
3/8 3/8
1/4 1/4
None of these None of these

If a ⊕ b = (a × b) + b, then 5 ⊕ 7 equals to?

1 Mark(s)

Your Answer:

12 12
35 35
42 42
50 50

What will be the output of the following Python function? import math abs(math.sqrt(25))

1 Mark(s)

Your Answer:

Error Error
-5 -5
5 5
5.0 5.0

Is the following Python code valid? class B(object): def first(self): print("First method called") def second(): print("Second method called") ob = B() B.first(ob)

1 Mark(s)

Your Answer:

It isn't as the object declaration isn't right
It isn't as there isn't any __init__ method for initializing class members
Yes, this method of calling is called unbounded method call
Yes, this method of calling is called bounded method call

If two threads access the same hashmap at the same time, what would happen?

1 Mark(s)

Your Answer:

ConcurrentModificationException ConcurrentModificationException
NullPointerException NullPointerException
ClassNotFoundException ClassNotFoundException
RuntimeException RuntimeException

Which gas is absorbed by plants in photosynthesis?

1 Mark(s)

Your Answer:

Nitrogen Nitrogen
Carbon dioxide Carbon dioxide
Oxygen Oxygen
Hydrogen Hydrogen

Second Saturday and every Sunday is a holiday. How many working days will be there in a month of 30 days beginning on a Saturday?

1 Mark(s)

Your Answer:

21 21
22 22
23 23
24 24

Read the statements (A) and ( R) and choose the correct option (A) Goods sold in a permanent shop are usually costlier than goods sold in the weekly markets. (R) Permanent shops incur a lot of expenditure in the form of rent, electricity bill, workers’ wage etc.

1 Mark(s)

Your Answer:

Both (A) and (R) are true and (R) is the correct explanation of (A)
Both (A) and (R) are true and (R) is not the correct explanation of (A)
(A) true, but (R) is false (A) true, but (R) is false
Both (A) and (R ) are false Both (A) and (R ) are false

The keyword used to declare a base class method while performing overriding of base class methods is:

1 Mark(s)

Your Answer:

this this
virtual virtual
override override
extend extend

A polygon having 9 sides is called:

1 Mark(s)

Your Answer:

decagon decagon
quadrilateral quadrilateral
nonagon nonagon
hexagon hexagon

The smallest square number divisible by 10, 16 and 24 is ?

1 Mark(s)

Your Answer:

900 900
1600 1600
2500 2500
3600 3600

If the numerator of a fraction is increased by 20% and its denominator is diminished by 25% value of the fraction is 2/15. Find the original fraction.

1 Mark(s)

Your Answer:

1/12 1/12
1/8 1/8
1/6 1/6
1/4 1/4

The International Monetary Fund (IMF) has reduced India's economic growth forecast for the current fiscal year 2021-22 to which of the following percentage?

1 Mark(s)

Your Answer:

10 percent 10 percent
8 percent 8 percent
5 percent 5 percent
9 percent 9 percent

In the Right to Education Act, 2009 minimum working hours per week for teachers are mentioned?

1 Mark(s)

Your Answer:

35 teaching and preparation hours 35 teaching and preparation hours
40 teaching and preparation hours 40 teaching and preparation hours
45 teaching hours 45 teaching hours
45 teaching and preparation hours 45 teaching and preparation hours

The cost price of \$15$ articles equals the selling price of \$12$ articles. Find the profit percentage.

1 Mark(s)

Your Answer:

0.2 0.2
0.22 0.22
0.25 0.25
0.3 0.3

How can we move from one desired step to another step?

1 Mark(s)

Your Answer:

breakpoints breakpoints
System.out.println System.out.println
logger.log logger.log
logger.error logger.error

While selling a watch, a shop- keeper gives a discount of 5%. If he gives a discount of 7%, he earns ₹15 less as profit. The marked price of the watch is

1 Mark(s)

Your Answer:

₹ 697.5 ₹ 697.5
₹ 712.5 ₹ 712.5
₹ 750 ₹ 750
None of these None of these

If p(x) = 3x – 7, then p(x) + p(-x) is:

1 Mark(s)

Your Answer:

A) 7 A) 7
B) 6x B) 6x
C) 0 C) 0
D) -14 D) -14

In which year the International Finance Corporation was established?

1 Mark(s)

Your Answer:

1957 1957
1956 1956
1955 1955
1954 1954

In the exponential function class ƒ(x) = bx where b > 1, the function between x and y is classified as:

1 Mark(s)

Your Answer:

y is decreasing function of x y is decreasing function of x
x is decreasing function of y x is decreasing function of y
x is increasing function of y x is increasing function of y
y is increasing function of x y is increasing function of x

The permissible half space is included in the side of line only if inequality is satisfied by:

1 Mark(s)

Your Answer:

coordinates coordinates
vertex vertex
intercepts intercepts
quadrants quadrants

What will be the output of the following Java code? class char_increment { public static void main(String args[]) { char c1 = 'D'; char c2 = 84; c2++; c1++; System.out.println(c1 + " " + c2); } }

1 Mark(s)

Your Answer:

E U E U
U E U E
V E V E
U F U F

cos -1 ($\frac{1}{2}$)

1 Mark(s)

Your Answer:

A) –$\frac{π}{3}$ A) –$\frac{π}{3}$
B) $\frac{π}{3}$ B) $\frac{π}{3}$
C) $\frac{π}{2}$ C) $\frac{π}{2}$
D) $\frac{2π}{3}$ D) $\frac{2π}{3}$

Which is better investment, 12% stock at par with an income tax at the rate of 5 paise per rupee or $$14\frac{2}{7}\% $$ stock at 120 free from income tax ?

1 Mark(s)

Your Answer:

12% stock 12% stock
$$14\frac{2}{7}\ $$% stock $$14\frac{2}{7}\ $$% stock
Both are equally good Both are equally good
Cannot be compound Cannot be compound

What does Creditors Turnover Ratio take into account:

1 Mark(s)

Your Answer:

A) Total credit purchases A) Total credit purchases
B) Total credit sales B) Total credit sales
C) Total cash sales C) Total cash sales
D) Total cash purchases D) Total cash purchases

If two diagonals are given, then we can construct a:

1 Mark(s)

Your Answer:

A) Rhombus A) Rhombus
B) Rectangle B) Rectangle
C) Kite C) Kite
D) Parallelogram D) Parallelogram

If x + y = z, then the expression x3 + y3 - z3 + 3xyz will be equal to?

1 Mark(s)

Your Answer:

0 0
3xyz 3xyz
-3xyz -3xyz
3z 3z

Two circles touch each other at point X. Two common tangents of the circles meet at point P and none of the tangents passes through X. These tangents touch the larger circle at points B and C. If the radius of the larger circles 15 cm and CP = 20 cm, then what is the radius (in cm) of the smaller circle?

1 Mark(s)

Your Answer:

3.5 3.5
3.75 3.75
4.25 4.25
4.45 4.45

A man takes 5 hours 45 min in walking to a certain place and riding back. He would have gained 2 hours by riding both ways. The time he would take to walk both ways is_________?

1 Mark(s)

Your Answer:

11 hrs 11 hrs
8 hrs 45 min 8 hrs 45 min
7 hrs 45 min 7 hrs 45 min
9 hts 20 min 9 hts 20 min

D is a point on the side BC of a ΔABC such that AD bisects ∠BAC. Then

1 Mark(s)

Your Answer:

A) BD = CD A) BD = CD
B) BA > BD B) BA > BD
C) BD > BA C) BD > BA
D) CD > CA D) CD > CA

Automatic variables are initialized to . . . . . . . .

1 Mark(s)

Your Answer:

Zero Zero
Junk value Junk value
Nothing Nothing
Both Zero & Junk value Both Zero & Junk value

Which of the following can be considered as the classification or mapping of a set or class with some predefined group or classes?

1 Mark(s)

Your Answer:

Data set Data set
Data Characterization Data Characterization
Data Sub Structure Data Sub Structure
Data Discrimination Data Discrimination

The probabilistic reasoning depends upon____________.

1 Mark(s)

Your Answer:

Estimation Estimation
Observations Observations
Likelihood Likelihood
All of the above All of the above

In what ratio must a grocer mix teas worth Rs.60 a kg and Rs.65 a kg.So that by selling the mixture at Rs. 68.20 a kg, He may gain 10%?

1 Mark(s)

Your Answer:

3:2 3:2
3:4 3:4
3:5 3:5
4:5 4:5

At present Suresh's age is twice the age of his daughter. After 6 year from now, the ratio of the ages of Suresh and his daughter will be 23 : 13. What is the present age of Suresh ?

1 Mark(s)

Your Answer:

36 years 36 years
40 years 40 years
46 years 46 years
Cannot be determined Cannot be determined
None of these None of these

Which of the following code retrieves the body of the request as binary data?

1 Mark(s)

Your Answer:

DataInputStream data = new InputStream()
DataInputStream data = response.getInputStream()
DataInputStream data = request.getInputStream()
DataInputStream data = request.fetchInputStream()

If the length of the diagonal of a square is $${ 10\sqrt{2}}$$ cm, then what will be the area of the square?

1 Mark(s)

Your Answer:

200 cm2 200 cm2
100 cm2 100 cm2
$${ 100\sqrt{2}}$$ $${ 100\sqrt{2}}$$
50 cm2 50 cm2

Sum of all the cube roots of unity is:

1 Mark(s)

Your Answer:

1 1
2 2
0 0
3 3

If base increases by 25% and height decreases by 20%, area becomes?

1 Mark(s)

Your Answer:

1.25 times 1.25 times
Same Same
Double Double
None of these None of these

Number of girls in school F is what percent more than the number of girls in school C?

1 Mark(s)

Your Answer:

35% 35%
25% 25%
3 0% 3 0%
20% 20%
None of these None of these

(0.1667)(0.8333)(0.3333) is approximately equal to: (0.2222)(0.6667)(0.1250)

1 Mark(s)

Your Answer:

2 2
2.40 2.40
2.43 2.43
2.50 2.50

Recently, which institute has received the best technology award for its pioneering work in the field of horticultural sciences?

1 Mark(s)

Your Answer:

Central Institute for Subtropical Horticulture
Indian Institute of Spices Research Indian Institute of Spices Research
Indian Institute of Horticultural Research
Central Institute for Research on Cotton Technology

Valid identifier is:

1 Mark(s)

Your Answer:

a4 a4
_avg _avg
_count _count
_a _a

The coefficient in the term 7xy is

1 Mark(s)

Your Answer:

A) 7 A) 7
B) 3 B) 3
C) 1 C) 1
D) 2. D) 2.

Evaluating Your Answers

DSSC Signals and Engineers Academic Test Electrical Mechanical Telecom Civil Engineering Mock 5 : Question 1 of 50