2136: A small weight put on the pressure cooker increases the pressure of steam because:
(a) It is air tight
(b) Area of contact is very small
(c) Density of metal is very high
(d) Pressure builds up irrespective of the weight placed
2137: If a metal slab of size 1 m x 20 cm x 1 cm is melted to another slab of 1 mm thickness and 1 m width, then the length of the new slab thus formed will be:
(a) 200 cm
(b) 400 cm
(b) 600 cm
(d) 1000 cm
2138: Which of the following statements are true of the Congress Socialist Party?
(1) It was a forum for various kinds of Socialists in India
(2) It was a rival organisation of Indian National Congress
(3) It championed the cause of workers and peasants
Choose the correct answer from the codes given below :
(a) 1, 2 and 3
(b) 1 and 2 only
(c) 1 and 3 only
(d) 2 and 3 only
2139: Consider the following statements :
The Non-Cooperation Movement led to the
I. Congress becoming a mass movement for the first time.
II. growth of Hindu-Muslim unity.
III. removal of fear of the British might from the minds of the people.
IV. British government's willingness to grant political concessions to Indians.
Of these statements
(a) I, II, III and IV are correct
(b) II and II are correct
(c) I and III are correct
(d) III and IV are correct
2140: Consider the following statements about probiotic food :
1. Probiotic food contains live bacteria which are considered beneficial to humans.
2. Probiotic food helps in maintaining gut flora.
(a) 1 only
(b) 2 Only
(c) Both 1 and 2
(d) Neither 1 nor 2