“the big economic difference between nuclear and fossil-fuelled power sta tions is that nuclear reactors are more expensive to build and decommission, but cheaper to sun. so disputes over the relative efficiency of the two systems revolve not just around prices of coal and uranium today and tomorrow, but al so around the way in which future income should be compared with current incom e.” 1. the main difference between nuclear and fossil-fuelled power stations i s an economic one. true untrue cannot say 2. the price of coal is not relevant to discussions about the relative eff iciency of nuclear reactors. true untrue cannot say 3. if nuclear reactors were cheaper to build and decommission than fossil- fuelled power stations, they would definitely have the economic advantage. true untrue cannot say “at any given moment we are being bombarded by physical and psychological stimuli competing for our attention. although our eyes are capable of handlin g more than 5 million bits of data per second, our brain are capable of interp reting only about 500 bits per second. with similar disparities between each o f the other senses and the brain, it is easy to see that we must select the vi sual, auditory, or tactile stimuli that we wish to compute at any specific tim e.” 4. physical stimuli usually win in the competition for our attention. true untrue cannot say 5. the capacity of the human brain is sufficient to interpret nearly all t he stimuli the senses can register under optimum conditions. true untrue cannot say 6. eyes are able to cope with a greater input of information than ears. true untrue cannot say verbal answer: (1)c cannot say (2)b untrue (3)a true (4)c cannot say (5)b untrue (6)c cannot say partii numercal test 1.which country had the highest number of people aged 60 or over at the s tart of 1985? a. uk b. france c. italy d. w.germany e. spain 2.what percentage of the total 15mm button production was classed as sub- standard in september? aa 10.5% bb 13% cc 15% dd 17.5% ee 20% ab 23.5% ac 25% ad 27.5% ae 28% bc 30.5% 3. how many live births occurred in 1985 in spain and italy together (to t he nearest 1000)? a. 104 000 b. 840 000 c. 1 044 000 d. 8 400 000 e. 10 440 000 4. what was the net effect on the uk population of the live birth and deat h rates in 1985? a. decrease of 66 700 b. increase of 752 780 c. increase of 84 900 d. cannot say e. increase of 85 270 5. by how much did the total sales value of november‘s button production vary from october‘s? a. 8.50 (decrease) b. 42.50 (decrease) c. 85.00 (increase) d. 27.50 (decrease) e. no change 6. what was the loss in potential sales revenue attributable to the produc tion of sub-standard (as opposed to standard) buttons over the 6 month period? a. 13.75 b. 27.50 c. 137.50 d. 280.00 e. 275.00