1. The stagnation pressure rise in a centrifugal compressor takes place





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MCQ->The stagnation pressure rise in a centrifugal compressor takes place....
MCQ-> I suggest that the essential character of the Trade Cycle and, especially, the regularity of time-sequence and of duration which justifies us in calling it a cycle, is mainly due to the way in which the marginal efficiency of capital fluctuates. The Trade Cycle is best regarded, I think, as being occasioned by a cyclical change in the marginal efficiency of capital, though complicated and often aggravated by associated changes in the other significant short period variables of the economic system.By a cyclical movement we mean that as the system progresses in, e.g. the upward direction, the forces propelling it upwards at first gather force and have a cumulative effect on one another but gradually lose their strength until at a certain point they tend to be replaced by forces operating in the opposite direction; which in turn gather force for a time and accentuate one another, until they too, having reached their maximum development, wane and give place to their opposite. We do not, however, merely mean by a cyclical movement that upward and downward tendencies, once started, do not persist for ever in the same direction but are ultimately reversed. We mean also that there is some recognizable degree of regularity in the time-sequence and duration of the upward and downward movements. There is, however, another characteristic of what we call the Trade Cycle which our explanation must cover if it is to be adequate; namely, the phenomenon of the ‘crisis’ the fact that the substitution of a downward for an upward tendency often takes place suddenly and violently, whereas there is, as a rule, no such sharp turning-point when an upward is substituted for a downward tendency. Any fluctuation in investment not offset by a corresponding change in the propensity to consume will, of course, result in a fluctuation in employment. Since, therefore, the volume of investment is subject to highly complex influences, it is highly improbable that all fluctuations either in investment itself or in the marginal efficiency of capital will be of a cyclical character.We have seen above that the marginal efficiency of capital depends, not only on the existing abundance or scarcity of capital-goods and the current cost of production of capital- goods, but also on current expectations as to the future yield of capital-goods. In the case of durable assets it is, therefore, natural and reasonable that expectations of the future should play a dominant part in determining the scale on which new investment is deemed advisable. But, as we have seen, the basis for such expectations is very precarious. Being based on shifting and unreliable evidence, they are subject to sudden and violent changes. Now, we have been accustomed in explaining the ‘crisis’ to lay stress on the rising tendency of the rate of interest under the influence of the increased demand for money both for trade and speculative purposes. At times this factor may certainly play an aggravating and, occasionally perhaps, an initiating part. But I suggest that a more typical, and often the predominant, explanation of the crisis is, not primarily a rise in the rate of interest, but a sudden collapse in the marginal efficiency of capital. The later stages of the boom are characterized by optimistic expectations as to the future yield of capital goods sufficiently strong to offset their growing abundance and their rising costs of production and, probably, a rise in the rate of interest also. It is of the nature of organized investment markets, under the influence of purchasers largely ignorant of what they are buying and of speculators who are more concerned with forecasting the next shift of market sentiment than with a reasonable estimate of the future yield of capital-assets, that, when disillusion falls upon an over-optimistic and over- bought market, it should fall with sudden and even catastrophic force. Moreover, the dismay and uncertainty as to the future which accompanies a collapse in the marginal efficiency of capital naturally precipitates a sharp increase in liquidity-preference and hence a rise in the rate of interest. Thus the fact that a collapse in the marginal efficiency of capital tends to be associated with a rise in the rate of interest may seriously aggravate the decline in investment. But the essence of the situation is to be found, nevertheless, in the collapse in the marginal efficiency of capital, particularly in the case of those types of capital which have been contributing most to the previous phase of heavy new investment. Liquidity preference, except those manifestations of it which are associated with increasing trade and speculation, does not increase until after the collapse in the marginal efficiency of capital. It is this, indeed, which renders the slump so intractable. Which of the following does not describe the features of cyclical movement?
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MCQ-> Read the following passage and answer the questions that follow. Certain words and phrases are printed in bold to help you locate them while answering some of the questions: After a stringent regime of autarky and command and control economy, from 1956 to 1975, India started on a slow path of reintegration into the world economy, albeit in a nascent form. Empirical comparison of the period before and after liberalization demonstrates that, instead of economic stagnation, India achieved a marked acceleration in economic growth after liberalization. Indeed, India broke the barrier of stagnation that had been the lot of the country before globalization. India’s rate of growth from 1975 to 2007 has been over 5.5 percent, compared to the derisively termed “Hindu” rate of growth of 3.4 percent over the period 1956 to 1975, and especially to the pathetic 2.6 Percent over the decade prior to the nascent liberalization in 1975. In the dozen years from 1995 to 2007 the growth rate has been over 6.5 percent; during the last four years India has sustained an unprecedented average growth rate of over 8 percent. It is difficult to exaggerate this accomplishment in growth acceleration. It has provided additional resources not only for investment in human capital but also for expenditures on the social sectors and poverty alleviation. Besides, the economic dynamism associated with this growth has imparted a self-confidence for successfully building a consolidated nation-state. It has indeed transformed a country that had been mocked as “the sick man of Asia” - an inveterate supplicant for foreign aid – into a credible contender for a major role in the balance of power in Asia. Similarly, far from the specter of deindustrialization held out by critics, foreign imports have not swamped Indian industry after tariffs were lowered as part of India’s reintegration into the world economy. Rather, Indian industry has grown at a higher rate than it had prior to liberalization of the economy. The growth rate of manufacturing has been around 6.5 percent since 1975 and close to 7 percent during the dozen years up to 2006. Select the word that is MOST OPPOSITE to the given word, as used in the passage: Acceleration
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