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73.
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74.
Study the following and answer the questions that follow :
A gas cylinder can discharge gas at the rate of 1 cc/minute from burner A and at the rate of 2 cc/minute from burner B (maximum rates of discharge). The capacity of the gas cylinder is 1000 cc of gas. The amount of heat generated is equal to 1 kcal/cc of gas. However, there is wastage of the heat as per the following table :Gas discharge @ Loss of heat 0-0.5 cc/minute 10% 0.5-1 cc/minute 20% 1-1.5 cc/minute 25% 1.5 + cc/minute 30%
(include higher extremes)[1] If both burners are opened simultaneously such that the first is opened to 90% of its capacity and the second is opened to 80% of its capacity, the amount of time in which the gas cylinder, the amount of time in which the gas cylinder will be empty (if it was half full at the start) will be
(1) 200 minutes
(2) 400 minutes
(3) 250 minutes
(4) None of these[2] The maximum amount of heat with the fastest speed of cooking that can be utilized for cooking will be when
(1) the first burner is opened upto 50% of it’s aperture
(2) the second burner is opened upto 25% of it’s aperture
(3) Either (1) or (2)
(4) None of theselast reply by CpjJwWHV • 9 years ago • asked in NMAT
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75.
Study the information given below and answer the questions that follow.
The BSNL announced a cut in the STD rates on 27 December 2003. The new rates and slabs are given in the table below and are to be implemented from the 14 January 2004.
Rates (Rs./min)Distance(KM) Peak Rates
(OLD)Peak Rates
(NEW)Off Peak
(OLD)Off Peak
(NEW)50-200 4.8 2.4 1.20 1.20 200-500 11.6 4.8 3.00 2.40 500-1000 17.56 9.00 4.50 4.50 1000+ 17.56 9.00 6.00 4.50 [1] The maximum percentage reduction in costs will be experienced for calls over which of the following distances?
(1) 1000+
(2) 500-1000
(3) 50-200
(4) 200-500[2] The percentage difference in the cost of a set of telephone cells made on the 13th and 14th January having durations of 4 minutes over a distance of 350 km, 3 minutes for a distance of 700 km and 3 minutes for a distance of 1050 km is (if all the three cells are made in peak times)
(1) 59.8%
(2) 51.76%
(3) 41.2%
(4 ) Cannot be determinedlast reply by CpjJwWHV • 9 years ago • asked in NMAT
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76.
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77.
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78.