1826: In an objective test there are 60 questions. Each question carries four alternative answers only one of which is correct. Suppose A and B are two candidates both of whom know correct answers to 30 questions. A answers only 30 questions while B answers all 60 questions choosing answers at random for those he does not know the answers of. If each question carries a mark of 1 and no negative marks are awarded, the marks obtained by B are expected to be larger than those obtained by A by
(a) 0
(b) 15
(c) 5
(d) 7.5
1827: Match List I with List II and select the correct answer by using the codes given below the lists :
List I
I. Rashtriya Mahila Kosh
II. Mahila Samriddhi Yojana
III. Indira Mahila Yojana
IV. Mahila Samakhya Programme
List II
(A) Empowerment of women
(B) Education for Women's Equality
(C) Promotion of savings among rural women
(D) Meeting credit needs of the poor women
Codes:
(a) I-C, II-B, III-A, IV-D
(b) I-A, II-C, III-D, IV-B
(c) I-D, II-C, III-A, IV-B
(d) I-D, II-A, III-B, IV-C
1828: Gasohol is mixture of gasoline and ............
(a) Ethyl alcohol
(b) Methyl alcohol
(c) Kerosene
(d) Butyl alcohol
1829: In a bisexual flower, if androecium and gynaecium mature at different times, the phenomenon is know as
(a) Dichogamy
(b) Herkogamy
(c) Heterogamy
(d) Monogamy
1830: Which one of the following colloidal systems is represented by fog?
(a) Liquid in gas
(b) Gas in liquid
(c) Solid in gas
(d) Liquid in liquid