2331: In addition to fingerprint scanning, which of the following can be used in the biometric identification of a person ?
1. Iris scanning
2. Retinal scanning
3. Voice recognition
Select the correct answer using the code given below:
(a) 1 only
(b) 2 and 3 only
(c) 1 and 3 only
(d) 1, 2 and 3 only
2332: Amongst the following Indian States which one has the minimum total forest cover?
(a) Sikkim
(b) Goa
(c) Haryana
(d) Kerala
2333: A rectangular sump of dimensions 6 m x 5 m x 4 m is to be built by using bricks to make the outer dimension 6.2 m x 5.2 x 4.2 m. Approximately how many bricks of size 20 cm x 10 cm x 5 cm are required to build the sump for storing water ?
(a) 1500
(b) 3000
(c) 15000
(d) 30000
2334: Painted greyware is attributed to
(a) Vedic period
(b) Guptas
(c) Mauryas
(d) Indus valley civilisation
2335: Four metal rods of lengths 78 cm, 104 cm, 117 cm and 169 cm are to be cut into parts of equal length. Each part must be as long as possible. What is the maximum number of pieces that can be cut?
(A) 36
(B) 43
(C) 27
(D) 11