DSSC Signals and Engineers Academic Test Electrical Mechanical Telecom Civil Engineering Mock 4

A furniture salesman increased the value of furniture by 20 percent due to the lure of more income, which led to a decrease of 30 percent in his sales, then tell him what percentage was reduced in his income?

1 Mark(s)

Your Answer:

16 % 16 %
15 % 15 %
4 % 4 %
20% 20%

Simplify : p + (p – q) + q + (q – p)

1 Mark(s)

Your Answer:

A) p A) p
B) q B) q
C) p + q C) p + q
D) p – q D) p – q

A ladder is placed along a wall such that its upper end is touching the top of the wall. The foot of the ladder is 10 ft away from the wall and the ladder is making an angle of 60° with the ground. When a man starts climbing on it, it slips and now ladder makes an angle of 30° with ground. How much did the ladder slip?

1 Mark(s)

Your Answer:

10 (√3 - 1) ft 10 (√3 - 1) ft
20 (√3 - 1) ft 20 (√3 - 1) ft
30 (√3 - 1) ft 30 (√3 - 1) ft
18(√3 - 1) ft 18(√3 - 1) ft

The calendar for the year 1988 is same as which upcoming year ?

1 Mark(s)

Your Answer:

2012 2012
2014 2014
2016 2016
2010 2010

Which of the following is not a valid C keyword?

1 Mark(s)

Your Answer:

main main
if if
printf printf
for for

Which method is used to get three-letter abbreviation for locale's country in servlets?

1 Mark(s)

Your Answer:

Request.getISO3Country() Request.getISO3Country()
Locale.getISO3Country() Locale.getISO3Country()
Response.getISO3Country() Response.getISO3Country()
Local.retrieveISO3Country() Local.retrieveISO3Country()

Which Buddhist work is considered as sacred as the Gita?

1 Mark(s)

Your Answer:

Native Native
Dhammapada Dhammapada
Pitaka Pitaka
Buddhacharit Buddhacharit

On solving the expression 6a + 8b - 11a, the answer will be:

1 Mark(s)

Your Answer:

−5a +8b −5a +8b
66a + 8b 66a + 8b
80ab 80ab
−3b −3b

Which is a perfect sixth power?

1 Mark(s)

Your Answer:

A) 729 A) 729
B) 64 B) 64
C) 729 6 C) 729 6
D) 1 D) 1

The average age of 30 boys in a class is 15 years. One boy, aged 20 years, left the class, but two new boys came in his place whose age differs by 5 years. If the average age of all the boys now in the class becomes 15 years, the age of the younger newcomer is:

1 Mark(s)

Your Answer:

20 years 20 years
15 years 15 years
10 years 10 years
8 years 8 years

₹ 800 becomes ₹ 956 in 3 years at a certain rate of simple interest. If the rate of interest is increased by 4 %, what amount will ₹ 800 become in 3 years?

1 Mark(s)

Your Answer:

₹ 1020.80 ₹ 1020.80
₹ 1025 ₹ 1025
₹ 1052 ₹ 1052
₹ 1050 ₹ 1050

Kamal will complete work in 20 days. If Suresh is 25% more efficient than Kamal, he can complete the work in________days.

1 Mark(s)

Your Answer:

14 14
16 16
15 15
11 11

Choose the alternative which is closely resembles the water image of the given combination/figure. ADVANCE 1) 2) 3) 4) NONE

1 Mark(s)

Your Answer:

1 1
2 2
3 3
4 4

A certain sum of money is invested for one year at a certain rate of simple interest. If the rate of interest is 3% higher, then the invest earned will be 25% more than the interest earned earlier. What is the earlier rate of interest ?

1 Mark(s)

Your Answer:

4% p.a. 4% p.a.
6% p.a. 6% p.a.
8% p.a. 8% p.a.
12% p.a. 12% p.a.

Which of the following is not an advantage of Hibernate Criteria API?

1 Mark(s)

Your Answer:

Allows to use aggregate functions Allows to use aggregate functions
Cannot order the result set Cannot order the result set
Allows to fetch only selected columns of result
Can add conditions while fetching results

What will be the output of the following C code? #include <stdio.h> int main() { printf("%d ", 1); goto l1; printf("%d ", 2); l1:goto l2; printf("%d ", 3); l2:printf("%d ", 4); }

1 Mark(s)

Your Answer:

1 4 1 4
Compile time error Compile time error
1 2 4 1 2 4
1 3 4 1 3 4

The smallest square number that is divisible by each of the numbers 2, 3 and 8 is

1 Mark(s)

Your Answer:

A) 64 A) 64
B) 144 B) 144
C) 1296 C) 1296
D) 576 D) 576

Are the above suitable for networks within a building?

1 Mark(s)

Your Answer:

Lane Lane
Wane Wane
Both A and B Both A and B
None of these None of these

If P(x, y, z) is a point on the line segment joining Q(2, 2, 4) and R(3, 5, 6) such that the projections of OP on the axes are 13/5, 19/5, 26/5 respectively, then P divides QR in the ration

1 Mark(s)

Your Answer:

A) 1 : 2 A) 1 : 2
B) 3 : 2 B) 3 : 2
C) 2 : 3 C) 2 : 3
D) 1 : 3 D) 1 : 3

In C preprocessing, what is the purpose of the #elifndef directive?

1 Mark(s)

Your Answer:

Checks if a macro is defined Checks if a macro is defined
Checks if a macro is not defined Checks if a macro is not defined
Provides an alternative condition Provides an alternative condition
Defines a macro Defines a macro

A and B can do a piece of work in 20 days and 30 days respectively. They started the work together but after 8 days they doing work in alternate days, started with B. how many days the work will be completed?

1 Mark(s)

Your Answer:

20 20
12 12
14 14
16 16
8 8

Array passed as an argument to a function is interpreted as

1 Mark(s)

Your Answer:

Address of the array. Address of the array.
Values of the first elements of the array.
Address of the first element of the array.
Number of element of the array. Number of element of the array.

Recently Dev Talai village was in news due to possibility of gold reserves. This place is situated in -

1 Mark(s)

Your Answer:

Alwar Alwar
Bhilwara Bhilwara
Jaipur Jaipur
Dausa Dausa

A kind of AI modelling where rules are defined by the developer is

1 Mark(s)

Your Answer:

A) Supervised Learning A) Supervised Learning
B) Unsupervised Learning B) Unsupervised Learning
C) Rule based Approach C) Rule based Approach
D) None of these D) None of these

What is the purpose of the keys() method for dictionaries?

1 Mark(s)

Your Answer:

Returns a list of all keys in the dictionary
Returns a list of all values in the dictionary
Returns a list of all items in the dictionary
Returns a list of all keys and values in the dictionary

(ab) m =

1 Mark(s)

Your Answer:

A) a m b m A) a m b m
B) a m b B) a m b
C) ab m C) ab m
D) ab D) ab

In the given figure, ABCD is a square, BCXYZ is a regular pentagon and ABE is an equilateral triangle. What is the value (in degrees) of ∠EBZ ?

1 Mark(s)

Your Answer:

102 102
98 98
78 78
64 64

There are 54 coins in total. Some are 20-cent coins and some are 50-cent coins. Their total value is $20.70. How many 20-cent coins are there

1 Mark(s)

Your Answer:

21 21
23 23
27 27
31 31

A horse and a cow were sold for Rs. 12000 each. The horse was sold at a loss of 20 % and the cow at a gain of 20 %. The entire transaction resulted in___________?

1 Mark(s)

Your Answer:

No loss or gain No loss or gain
Loss of Rs. 1000 Loss of Rs. 1000
Gain of Rs. 1000 Gain of Rs. 1000
Gain of Rs. 2000 Gain of Rs. 2000

The set of values which satisfies two equations and non-negativity constraints is classified as:

1 Mark(s)

Your Answer:

basic feasible solution basic feasible solution
feasible value solution feasible value solution
basic solution basic solution
all of above all of above

Assertion (A) A page is 25 cm long and 20 cm wide. The area of this page is 90 cm. Reason (R) The amount of surface enclosed by a closed figure is called its area.

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 Perimeter of the shaded portion in figure is AB + … +.. + … + … + … + .. + HA Answer: BM+MD+DE + EN + NG+GH 2. Diagonal of a rectangle divides the rectangle in two __ parts. Answer: Equal 3. In the given figure, the area of ΔDAS is the __ of the area of rectangle ABCD. Answer: Half 4. The amount of region enclosed by a plane closed 1 figure is called its __ Answer: Area 5. The area of a play ground is 1190 m². If its length is 35 m, the width is __ Answer: 34 m True/False 1. If l and b are the length and width of a rectangle respectively, then the perimeter of rectangle is (l + b). Answer: False 2. The perimeter of a square is 4 times of its side. Answer: True 3. A farmer who wants to fence his field, must find the perimeter Of the field. Answer: True 4. If length of a rectangle is halved and breadth is doubled, then the area of the rectangle obtained remains same. Answer: True 5. Area of a square is doubled, if the side of the square is doubled. Answer: False Match the Columns

The average of 11 numbers is 10.9. If the average of first six is 10.5 and that of the last is 11.4, then find the sixth number?

1 Mark(s)

Your Answer:

11.5 11.5
11.0 11.0
11.3 11.3
None of these None of these

In the following figure, ABCD is a parallelogram, AE ⊥ DC and CF ⊥ AD. If AB = 16 cm, AE = 8 cm and CF = 10 cm, then AD = im-2

1 Mark(s)

Your Answer:

A) 16 cm A) 16 cm
B) 12.8 cm B) 12.8 cm
C) 8 cm C) 8 cm
D) 10 cm 8 cm D) 10 cm 8 cm

In CGI, process starts with each request and will initiate OS level process.

1 Mark(s)

Your Answer:

True True
False False

What is the type of the result when you add an integer and a floating-point number?

1 Mark(s)

Your Answer:

Integer Integer
Floating-point Floating-point
String String
Boolean Boolean

In expressions ax + by and 8x - 4y, a, b, 8 and 4 are:

1 Mark(s)

Your Answer:

variables variables
coefficients coefficients
exponents exponents
powers powers

What will be the output of the following Java code? class booloperators { public static void main(String args[]) { boolean var1 = true; boolean var2 = false; System.out.println((var1 & var2)); } }

1 Mark(s)

Your Answer:

0 0
1 1
true true
false false

By what fraction selling price ( S.P. ) must be multiplied to get the cost price ( C.P. ) if the loss is 20%?

1 Mark(s)

Your Answer:

$${5\over4}$$ $${5\over4}$$
$${6\over5}$$ $${6\over5}$$
$${4\over5}$$ $${4\over5}$$
$${8\over5}$$ $${8\over5}$$

Which keyword is used to create a new name for an existing data type in C?

1 Mark(s)

Your Answer:

typedef typedef
define define
alias alias
typecast typecast

The surface area of a cube is 726m2, its volume is?

1 Mark(s)

Your Answer:

1300 m3 1300 m3
1331 m3 1331 m3
1452 m3 1452 m3
1542 m3 1542 m3

Harry borrows $3000 for 5 years at rate of 8% per annum. The simple interest he has to pay is:

1 Mark(s)

Your Answer:

$2,250 $2,250
$1,200 $1,200
$1,500 $1,500
$1,800 $1,800

The value of x² – 2x + 1 when x = 1 is

1 Mark(s)

Your Answer:

A) 1 A) 1
B) 2 B) 2
C) -2 C) -2
D) 0. D) 0.

The building block of OOP encapsulates part of the application which may be:

1 Mark(s)

Your Answer:

a process a process
a, c and d a, c and d
a chunk of data a chunk of data
an abstract entity an abstract entity

If 5a = 3125, then the value of 5(a - 3) is:

1 Mark(s)

Your Answer:

25 25
125 125
625 625
1625 1625

Delivery partners are ____________ made to understand the practical ____________ of the job as they choose to enter the workforce.

1 Mark(s)

Your Answer:

unilaterally, bright unilaterally, bright
universally, term universally, term
slowly, repetition slowly, repetition
unequivocally, nature unequivocally, nature
None of the above None of the above

sec -1 (2)

1 Mark(s)

Your Answer:

A) $\frac{π}{6}$ A) $\frac{π}{6}$
B) $\frac{π}{3}$ B) $\frac{π}{3}$
C) $\frac{2π}{3}$ C) $\frac{2π}{3}$
D) $\frac{5π}{6}$ D) $\frac{5π}{6}$

In which country has Amazon recently joined the ONDC network?

1 Mark(s)

Your Answer:

Japan Japan
India India
America America
Russia Russia

In the matrix, the elements are represented by:

1 Mark(s)

Your Answer:

special characters special characters
subscripted letters subscripted letters
lowercase letters lowercase letters
both b and c both b and c

If simple interest on Rs. 600 for 4 years and on Rs. 600 for 2 years combined together is Rs.180, find the rate of interest.

1 Mark(s)

Your Answer:

4% 4%
5% 5%
5.5% 5.5%
6.25% 6.25%

Given, N = 98765432109876543210 ..... up to 1000 digits, find the smallest natural number n such that N + n is divisible by 11.

1 Mark(s)

Your Answer:

2 2
3 3
4 4
5 5

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DSSC Signals and Engineers Academic Test Electrical Mechanical Telecom Civil Engineering Mock 4 : Question 1 of 50