1000+ DBS Aptitude Questions and Answers Pdf - 1

Question: 1

A closed aquarium of dimensions 30 cm × 25 cm × 20 cm is made up entirely of glass plates held together with tapes. The total length of tape required to hold the plates together (ignore the overlapping tapes) is

(A) 75 cm

(B) 150 cm

(C) 300 cm

(D) 375 cm

Question: 2

The length of the longest rod that can be placed in a room of dimensions 10 m × 10 m × 5 m is

(A) 10

(B) 11

(C) 15

(D) 20

Question: 3

A rectangular piece of cardboard 18 cm × 24 cm is made into an open box by cutting a square of 5 cm side from each corner and building up the side. Find the volume of the box is cu. cm.

(A) 116

(B) 216

(C) 432

(D) 560

Question: 4

The dimensions of a certain machine are 48 x 30 x 52. If the size of the machine is increased proportionately until the sum of its dimensions equals 156, what will be the increase in the shortest side?

(A) 4

(B) 5

(C) 6

(D) 7

Question: 5

Total surface area of a cube whose side is 0.5 cm is

(A) $${1}/{4}$$ cm²

(B) $${1}/{8}$$ cm²

(C) $${3}/{2}$$ cm²

(D) $${3}/{4}$$ cm²