- Argon H₂
- Argon CO₂
- Argon Helium
- Helium
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An empty fuel tank of a car was filled with A type petrol. When the tank was half-empty, it was filled with B type petrol. Again when the tank was half-empty, it was filled with A type petrol. When the tank was half-empty again, it was filled with B type petrol. What is the percentage of A type petrol at present in the tank?
Answer: Option 2 Let the capacity of the tank be 100 litres Initially: A type petrol = 100 litres After first operation: A type petrol = $$\frac{{100}}{2}$$ = 50 litres B type petrol =...
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What is the colour of the fresh grass Statements : I. Blue is called green, red is called orange, orange is called yellow. II. Yellow is called white, white is called black, green is called brown and brown is called purple.?
Answer: Option 2 The colour of fresh grass is 'green' and as given in II, 'green' is called 'brown'. So, the colour of fresh grass is 'brown'.
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In a particular type of welding, flux is prepared in the form of a coarse powder and granulated flux is spread over the joint. What is this type of welding process called?
Answer: Option 2 Let'
1 Answers 1 views
What is the name of the device used in arc welding circuits for the purpose of modifying the rate of current change when the weld road is varied rapidly?
Answer: Option 3 Let'
1 Answers 1 views
In mercury arc rectifiers having grid, the arc can be struck between anode and cathode only when the grid attains a certain potential, this potential being known as?
Answer: Option 2 Let'
1 Answers 11 views
Which of the following when used in ordinary low carbon steels, makes the metal ductile and of good bending qualities?
Answer: Option 3 It is a mild deoxidant acting as a cleanser taking the sulphur and oxygen out of the melt into the slag. It increases the harden ability and tensile...
1 Answers 2 views
If the flame of the welding torch is directed towards the progress of welding, then what will you call the welding technique?
Answer: Option 1 Let'
1 Answers 1 views
What type of fusion welding process is used for welding sheet metals of all engineering metals (except Cu, Ag) in automobile and air craft industries, pipe and tubing production?
Answer: Option 3 Let'
1 Answers 3 views
If Dust is called Air, Air is called Fire, Fire is called Water, Water is called Colour, Colour is called Rain and Rain is called Dust, where do Fish live ?
Answer: Option 3 Generally, Fishes lives in Water and Water is called Colour in the code. So Fishes live in Colour.
1 Answers 1 views
If Football is called Cricket, Cricket is called Basketball, Basketball is called Badminton, Badminton is called Volleyball, Volleyball is called Hockey and Hockey is called Golf, then which of the following games is not played using a ball?
Answer: Option 1 Badminton is played without any ball and in the question Badminton is called Volleyball.
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