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A 70 kg tea powder contains mixture from two qualities. Some amount of quality 1 tea powder is added so that ratio of quality 1 to quality 2 becomes 5 : 4. What is the extra amount of of quality 2 to be added so that, quality 2 becomes double the amount of quality 1 in new mixture. Given: current quality 1 exceeds quality 2 in old mixture by 10 kg?
If a person buys 8 litres of oil but a dishonest shopkeeper mixed low-quality oil with high-quality oil in the ratio 3 ∶ 5. The price of high-quality oil is Rs.60/litre and that of low quality is Rs.20/litre, then what is the profit% of the shopkeeper if he charged the price of high-quality oil?
Consider the below statements. (i) Quality is defined as fitness for the purpose at the lowest cost (ii) Quality is a grade of the product in appearance, performance, life, reliability, taste, odour, maintainability etc (iii) Quality is the degree to which a specified product is preferred over competing products of equivalent grade, based on the comparative test by customers, normally called as customer’s preference (iv) Quality is a measure of the degree of the general excellence of the product (v) Quality may be defined as the degree of conformance to design and specifications Which of the above statements are correct?
The power factor (PF) indicates how much of the apparent power is true power.
From an alloy, two specimens are machined and tested separately under tension and compression. The engineering stress-strain curves as well as the true stress-true strain curves for tension and compression are plotted in the same diagram. Identify the correct statements:
P. The engineering stress-strain curves in tension and compression are identical.
Q. The true stress-true strain curve in compression is lower than the true stresstrue strain curve in tension due to Bauschinger effect.
R. The true stress-true strain curve in tension is above the corresponding engineering stress-strain, curve.
S. The true stress-true strain curve in tension and compression are identical.
Consider the following statements with respect to synchronous machines. State whether these statements are true or false. (a) Armature reaction is demagnetising when a generating machine supplies zero power factor lagging current. (b) Armature reaction is magnetising when a generating machine supplies zero power factor leading current. (c) Armature reaction is mostly cross-magnetising, though it has a small demagnetising component, when a generating machine supplies unity power factor current.
Which of the following statements are true? a. As load increases armature current decreases, regardless of excitation. b. For under and over excited motors, power factor tends to approach zero with increase in load c. With normal excitation when load is increased, change in armature current is greater than in power factor which tends to become increasingly leading. d. Both with under and over excitation, change in power factor is greater than in armature current with increase in load.
The ratio of active power to apparent power is known as factor.
The power factor indicates how much of the apparent power is reactive power.
Which section of The Indian Easements Act 1882 deals with Continuous and discontinuous, apparent and non-apparent, easements?