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What is the distance covered by boat N upstream in 5 hours? Which of the following option is sufficient alone to find the answer? A) Boat M is travelling downstream with 20% more downstream speed of boat N. Speed of boat M in still water is 10% more than the speed of boat N in still water. B) Boat M and Boat N are travelling downstream with speed 33 km/hr and 40 km/hr respectively and speed of boat M is still water is 2 times the speed of stream. C) Speed of boat M in still water is 6 km/hr less then speed of boat N in still water and speed of stream is 10 km/hr. D) Speed of stream is ½ times the speed of boat N in still water and downstream speed of boat M is 44 km/hr. E) Speed of stream is 10 km/hr and ratio of upstream speed of boat M and boat N is 3 : 2 respectively.
Power required (in watts) to drive a centrifugal pump is (where Hm = Manometric head in metres, w = Specific weight in N/m3, Q = Discharge of the pump in m3/s and $${\eta _{\text{o}}}$$ = Overall efficiency of the pump)
Which one of the following four addresses is NOT EXACTLY same as the one given below? Cabramatta 360 Elizabeth Drive, 2170 Mount Pritchard, Australia (i) Cabramatta 360 Elizabeth Drive, 2170 Mount Pritchard, Australia (ii) Cabramatta 360 Elizabeth Drive, 2170 Mount Pritchard, Australia (iii) Cabrematta 360 Elizabeth Drive, 2170 Mount Pritchard, Australia (iv) Cabramatta 360 Elizabeth Drive, 2170 Mount Pritchard, Australia
Which one of the following four addresses is NOT EXACTLY same as the one given below?  Kedrick Shaw 72 Glenwood Drive, Thornton, NSW 2322, Australia (i)  Kedrick Shaw  72 Glenwood Drive,  Thornton, NSW 2322, Australia (ii) Kedrick Shaw  72 Glenwood Drive,  Thornton, NSW 2322, Australia (iii) Kedrick Shaw  72 Glenwood Drive,  Thornton, NSW 2322, Australia (iv) Kedrick Shaw  72 Glemwood Drive,  Thornton, NSW 2322, Australia
If Rati travels at his usual speed for ‘x’ hours, he covers the same distance as he covered when he travels at a speed 30 km/hr less than usual, but for (x + 3) hours. Which of the following can be determined? (A) If he travels at 20 km/hr less speed than usual, he can cover a distance of 240 km in (x - 1) hours. What is the value of ‘x’? (B) If travels at his usual speed for (t + 2) hours, and at 50% of his usual speed for (t - 2) hours, his average speed for the journey is 68 km/hr. What is his usual speed? (C) His usual speed (in km/hr) is a multiple of 5 between 40 and 50 (both inclusive). If ‘x’ is a whole number, what is his usual speed? (D) If he travels at his usual speed for ‘t’ hours, he covers a distance of 400 km. What is the value of ‘x’?
If the speed of a centrifugal pump is doubled, the power required will be increased by
A centrifugal pump designed to pump water is employed to pump a more viscous oil. In the later case, the pump
A suit, a trouser, and a shirt are to be stitched from a cloth. The cloth required for the suit is the average of cloth required for trousers and shirt. The length of the cloth for suit is 1.5 times the cloth required for the shirt. The length of cloth required for shirt is 5 times the even prime number. Which of the following is/are correct? A. Cloth required for trousers is 20 m B. Average length of cloth required for all the dresses = Cloth required for suit C. Initially, the cloth was 45 m D. Cloth required for shirt is 15 m
If the head is doubled in & centrifugal pump, the power required will increase in the ratio of
If the head is doubled in & centrifugal pump, the power required will increase in the ratio of