Related Questions

In a single phase power factor meter the phase difference between the currents in the two pressure coils is
A exactly 0°
B approximately 0°
C exactly 90°
D approximately 90°
A rectangular swimming pool is 15 meter long and 30 meter wide. A deck, with uniform width, surrounds the pool. If the total area of the pool and deck is 1050 square meter what is the width of the deck in meter?
A 6
B 7.5
C 10
D 5
A 40-meter long rope is cut into two unequal pieces. If one piece is 18 meter longer than the other, what is the length ( in meter ) of the shorter piece ?
A 10
B 11
C 18
D None of these
A garden of 100 meter length and 60 meter width has a walkway of 2 meter width on every side . What is the area of the garden, in square meters , excluding the walkway ?
A 5684
B 6000
C 624
D 5376
A 6 meter long pole casts 15 meter long shadow. Find the length of second pole if its shadow is 25 meter.
A 10 meter
B 12.5 meter
C 25 meter
D 62.5 meter
A 55 meter long train passes a 220 meter long railway station in 10 seconds. How many seconds will it take to pass another train 110 meter long?
A 6 sec
B 2.5
C 4
D 3.5
A three of height 4 meter casts a show of length 6.5 meter what is the height of a house casting a show 26 meter long?
A 14 meter
B 17 meter
C 15 meter
D 16 meter
ABCD is a rectangle . If its lengthis decreased by 5 meter and the width is increased by 3 mete3r, the area de3creases by 2 meter, the area inceases by 67 square meter, What is the width width of ABCD?
A 9 meter
B 17 meter
C 18 meter
D 22 meter
A garden of 100 meter length and 60 meter width has a walkway of 2 meter width on every side. What is the area of the garden, in square meters, excluding the walking?
A 5376
B 5576
C 2556
D 7874
A single phase transformer has a maximum efficiency of 90% at full load and unity power factor. Efficiency at half load at the same power factor is -
A 87.8%
B 86.7%
C 88.26%
D 88.9%

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