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X' was working at a place over which a crane swung carrying heavy stones. Both 'X' and his employer knew that the crane so swung and recognized the possibility of danger if a stone fell from the crane. No warning was given 'X' of the swinging time of the crane whenever this took place. Once a heavy stone fell from the swinging crane and injured 'X'. In a claim for torts, the employer pleaded that there was no liability on the basis of the principle volenti non fit injuria. This plea-
Following statements are given for DC motors (a) DC motors require less maintenance than AC motors (b) DC motors cannot provide high starting torque (c) DC motors are not suitable for very high-speed applications (d) The methods of speed control of DC motors are simpler and less expensive than those of AC motors Which of the following statements are correct?
In the following question, sentences of a paragraph have been jumbled and labelled as A, B, C and D. You are required to rearrange the jumbled sentences of the paragraph and mark your response accordingly by selecting the correct option. A: For an individual company, a boom means rapid and significant sales growth, while a boom for a country is marked by significant GDP growth.  B: Booms are often medium- to long-term periods of economic or market growth and may eventually turn into a bubble.  C: A boom refers to a period of increased commercial activity within either a business, market, industry, or economy as a whole.  D:  A bubble is when the boom extends far beyond the fundamental growth trend in value where buyers become irrationally exuberant.
Consider the following statements about ‘cranes; 1. Mobile cranes are suitable in small operation. 2. Whirly crane is a stationary crane with a long boom 3. Tower crane is used in lifting heavy machinery. 4. A guy-derrick can operate in a limited area only. Which of the above statements are correct?
Rearrange the following sentences in their correct order to form a meaningful paragraph. P. The crane felt insulted and wanted to take revenge. Q. He invited the fox to dine with him, and served boiled rice in a jug which he could not eat. R. A fox and crane were friends. S. The crane had a long beak, so could not take the soup, but the fox licked the dish. T. One day, the fox invited the crane to dinner, and put the soup in a flat dish. Which of the following should be the FIRST sentence after rearrangement?
Consider the following statements regarding ac drives: 1. For the same kW rating, ac motors are 20% to 40% light weight as compared to dc motors. 2. The ac motors are more expensive as compared to same kW rating dc motors. 3. The ac motors have low maintenance as compared to dc motors. Which of the above statements are correct?
B' was under the regular employment of 'A' as a driver of his mobile crane. He let the crane together with 'B' as driver to 'C'. In the course of loading a ship, 'X' was injured by negligent working of the crane by 'B'. At the time of the accident 'C' had the immediate control and direction of the operations to be executed. The working of the crane and the manipulation of its control, however, remained with 'B', In a suit by 'X' against 'C', is:
Which of the following statements are correct for synchronous motors? 1. Synchronous motors are well-suited for direct connection top reciprocating compressors. 2. Over-excited synchronous motors are most commonly used for power factor improvement. 3. Synchronous motors are generally used for current regulation of long transmission lines Select the correct answer using the code given below.
Train A traveling at 63 kmph can cross a platform 199.5 m long in 21 seconds. How much would train A take to completely cross (from the moment they meet ) train B, 157 m long and traveling at 54 kmph in opposite direction which train A is traveling? (in seconds)
Which crane consists of a hoist supported by a horizontal beam that is cantilevered from a vertical column?