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Consider the following statements: The axis of spiral bevel gear are non-parallel and intersecting. 1) The most common pressure angle for spiral bevel gear is 20° 2) The most common spiral angle for spiral bevel gear is 35. 3) Spirals bevel gears are generally interchangeable. 4) Spirals are noisy and recommended for low speeds of 10 m /s. Which of the above statements are correct?
The plum pudding ( first model )of the atom was proposed by JJ Thomson. Which of the following is/are the limitations of the Thomson model (i) The model wasn't able to explain the alpha scattering (ii) The model failed to explain the position of nuclei  (iii) The model failed to explain how the positive charges hold the negative charges (iv)The model failed to explain the existence of electrons in an atom 
The Weberian model of bureaucracy has been criticised from a variety of stand points.
Consider the following points in this regard:
1. The Weberian model appears to be a 'machine theory' and a closed system model taking little account of organisational interactions with the environment.
2. The structural features of bureaucracy as laid down by Weber might be suitable for routine and repetitive tasks but these would produce dysfunctional consequences in terms of human behaviour if the jobs would involve innovation and creativity.
3. Weberian model has not been found to respond adequately to the tasks of socioeconomic transformation in the developing countries. These tasks require quick changes whereas the capacity of the Weberian model for adaptation to change is rather slow.
4. Weber's model is confined to the study of formal bureaucratic structure and fails to take notice of the informal structure of bureauracy such as informal relations, informal norms and values, an informal power hierarchy and informal power struggles.
Which of the above points make a valid criticism of the Weberian model? Select the correct answer from below:
How is WINWIN Spiral Model different from Spiral Model?
User level threads are threads that are visible to the programmer and are unknown to the kernel. The operating system kernel supports and manages kernel level threads. Three different types of models relate user and kernel level threads. Which of the following statements is/are true ? (a) (i) The Many - to - one model maps many user threads to one kernel thread (ii) The one - to - one model maps one user thread to one kernel thread (iii) The many - to - many model maps many user threads to smaller or equal kernel threads (b) (i) Many - to - one model maps many kernel threads to one user thread (ii) One - to - one model maps one kernel thread to one user thread (iii) Many - to- many model maps many kernel threads to smaller or equal user threads
For a software project, the spiral model was employed. When will the spiral stop ?
Which of the following statements about The New Model Unions is/are correct? 1. The New Model Unions were formed in the 1850s 2. The New Model Unions were formed in the 1880s 3. The New Model Unions comprised a Labour Party idea 4. The New Model Unions excluded women in the 1920s Select the correct answer using the code given below:
Match List 1 with List 2 and choose the correct answer form the code given below: List 1 (Model Concept) List 2 (Definition)  (a) Sector Model  1. Model of the internal structure of cities in which social groups are spatially arranged in a series of rings  (b) Concentric Zone Model  2. Nucleus of city where retail stores and offices are concentrated  (c) Bid-Rent theory  3. Theory that refers how price and demand on real estate changes as distance towards CBD increases  (d) Central Business District (CBD)  4. Model of internal structure of cities in which social groups are arranged around a series of sectors or wedges radiating from CBD
Who proposed the spiral model?
In the following question, sentences of a paragraph have been jumbled and labeled as A, B, C, and D. You are required to rearrange the jumbled sentences in the right order to form a meaningful and coherent paragraph and mark your response accordingly by selecting the correct option. A. Galaxies themselves are of different types: star-forming spiral galaxies and non-star-forming lenticular and elliptical galaxies. B. Nearly two-thirds of the disc galaxies in the local universe are found to have this bar structure. C. Stars are fundamental building blocks of galaxies.  D. In some spiral galaxies, the stars move in elongated orbits near the centre so that, from far, this portion appears like an illuminated bar.