Haryana Constable Exam, (19-09-2021), (Shift-II)

51. The difference between a two-digit number and the number obtained by interchanging the positions of its digits is 36. What is the difference between the two digits of that number?

(1) 3
(2) Cannot be determined
(3) 6
(4) 9

Correct Answer: (4) 9

Solution:Let two-digit number
According to question:

$10 x + y - 10 y - x = 36$

x−y=96/9=4

Therefore, the difference between two digits = 4.

52. Haryana Police Academy (HPA) at Madhuban has been imparting training to the IPS Probationers of Haryana since

(1) 1999
(2) 1966
(3) 1988
(4) 1977

Correct Answer: (4) 1977

Solution:Haryana Police Academy (HPA) at Madhuban has been imparting training to the IPS Probationers of Haryana (State training part) since 1977.

It is also imparting training to the directly recruited Dy. SsP.

53. How many 9’s are there in the following number series, which are immediately preceded by 3 and followed by 6?

3 9 6 9 3 9 3 9 3 9 6 3 9 5 6 9 3 9 6 3 9

(1) 2
(2) 3
(3) 4
(4) None of these

Correct Answer: (2) 3

Solution:

54. Glycosidic bond is formed by the process of

(1) Annotation
(2) Dehydration
(3) Hydration
(4) Rehydration

Correct Answer: (2) Dehydration

Solution:A glycosidic bond is a bond present in disaccharides and polysaccharides.

This is a bond formed between two adjacent monosaccharides.
The elimination of a water molecule accompanies the formation of a glycosidic bond. In other words, it is a dehydration reaction.

55. Database entries are called

(1) Form
(2) Fields
(3) Records
(4) Tables

Correct Answer: (3) Records

Solution:Database entries are called records.

Fields and records are two basic components of a database, which is an organized collection of information or data.
The term "fields" refers to columns or vertical categories of data; the term "records" refers to rows or horizontal groupings of unique field data.

56. Each table appears as a spreadsheet grid called

(1) Datasheet
(2) Queries
(3) Record
(4) Tables

Correct Answer: (1) Datasheet

Solution:Each table that appears as a spreadsheet grid is called a datasheet.

A spreadsheet is also known as a worksheet.
It is used to record, calculate, and compare numerical or financial data.

57. There are six persons A, B, C, D, E and F. C is the sister of F, B is the brother of E’s husband. D is the father of A and grandfather of F. There are two fathers, three brothers and a mother in the group. Who is the mother?

(1) E
(2) A
(3) B
(4) D

Correct Answer: (1) E

Solution:C is the sister of F.

D is the father of A and grandfather of C and F.
A is the father of C and F because B is the brother of E's husband.
It means E is the wife of A and mother of C and F.

58. When ____ bits are grouped together as a unit, they form a byte.

(1) 8
(2) 5
(3) 6
(4) 4

Correct Answer: (1) 8

Solution:A byte is a unit of digital information that most commonly consists of eight bits.

A half byte is known as a Nibble.

59. log√8 / log 8 is equal to

(1) 1/8
(2) 1/√8
(3) 1/2
(4) 1/4

Correct Answer: (3) 1/2