946: Neap tides are produced in the first and third quarters of the Moon. Then,
(a) The Moon and the Sun are in conjunction with the other planets
(b) The Moon and the Sun are in opposition with each other
(c) The attractions of the Sun and the Moon are at right angles to each other
(d) The Moon and the Sun are in quadrant position to each other
947: One mole of hydrogen gas burns in excess of oxygen to give 290 kJ of heat. What is the amount of heat produced when 4g of hydrogen gas is burnt under the same conditions ?
(a) 145 kJ
(b) 290 kJ
(c) 580 kJ
(d) 1160 kJ
948: Consider the following liquid assets :
1. Demand deposits with the banks
2. Time deposits with the banks
3. Savings deposits with the banks
4. Currency
The correct sequence of these assets in the decreasing order of liquidity is
(a) 1 - 4 - 3 - 2
(b) 2 - 3 - 1 - 4
(c) 4 - 1 - 3 - 2
(d) 4 - 3 - 2 - 1
949: Three circles are externally tangent to each other. Their radii are 2 inches, 3 inches and 4 inches. The centres of these circles are joined to form a triangle. The length of the largest side of the triangle is
(a) 5 inches
(b) 6 inches
(c) 7 inches
(d) 8 inches
950: Recently, there has been a concern over the short supply of a group of elements called 'rare earth metals'. Why?
1. China, which is the largest producer of these elements, has imposed some restrictions on their export.
2. Other than China, Australia, Canada and Chile, these elements are not found in any country.
3. Rare earth metals are essential for the manufacture of various kinds of electronic items and there is a growing demand for these elements.
Which of the statements given above is/are correct?
(a) 1 only
(b) 2 and 3 only
(c) 1 and 3 only
(d) 1, 2 and 3