why current from lighting or power circuit shall not be used for firing shots in u/g coal mine?
Answer / shivam dhiman
in case high amount of coal , it is not possible...but in small amount case it is possible......sparking due to current depend upon voltage...but on other side in petrol engine ,there is spark ignition by electric circuit....
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How long will a train 100m long travelling at 72kmph take to overtake another train 200m long travelling at 54kmph
Daal is now being sold at Rs. 20 a kg. During last month its rate was Rs. 16 per kg. By how much percent should a family reduce its consumption so as to keep the expenditure fixed?
A finishes a work in 12 days and B finishes same work in 14 days.If they work for a day alternately with A beginning, how many days will it take to complete the work?
In a certain club the ratio of number of boy to girl is 5:3 what percent of the member of the club are the girls
Product of three consecutive nos. 210. What is the sum of two least numbers?
A circle is inscribed in a Triangle of side 6cm. What is the area of circle?
A son and father goes for boating in river upstream . After rowing for 1 mile son notices the hat of his fathe falling in the river. After 5 min. he tells his father that his hat has fallen. So they turn around and are able to pick the hat at the point from where they began boating after 5 min. Tell the speed of river.
A Farmer owns a square land of 15 m each side with a pole in one of the corners to which he tied his cow with a rope whose length is about 10 m. What is the area available for the cow to graze. (Assume pi = 3)
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In geometry, polygons with up to twelve sides have different given names; however, ______________________ if the number of sides is higher than twelve, the polygon is named by placing the suffix "gon" after the number of sides in the polygons. if the number of sides is greater than twelve, the polygon is named by placing the suffix "gon" after the number of sides in the polygons. if the number of sides is greater than twelve, name the polygon by placing the suffix "gon" after the number of sides in the polygons. if the number of sides is higher than twelve, name the polygon by placing the suffix "gon" after the number of sides in the polygons.
If a:b=5:6 and b:c=5:6, a:c=?
In certain code 'OPERATION' is written as 'POREAITNO'How is DREAMLAND written in that code.