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In a railway track, two rails are joined end to end with a gap tin between them because?
A. Steel can be saved
B. Accidents due to contraction in winter can be avoided
C. Air gaps are necessary for bearing the weight of running train
D. Accidents due to expansion in summer can be avoided
E. All of these
Everyday Science Mcqs · Easy · 1 month ago
Stratosphere is present at an altitude between _________.
A. 15 km and 35 km
B. 17 km and 35 km
C. 18 km and 35 km
D. 19 km and 35 km
Everyday Science Mcqs · Easy · 1 month ago
The Shortest air route from Moscow to San Francisco is?
A. Over the South Pole
B. Over the North Pole
C. Over the Atlantic Ocean
D. None of the above
Everyday Science Mcqs · Easy · 1 month ago
Friction can be reduced by changing from _________?
A. Rolling to sliding
B. Sliding to rolling
C. Dynamic to static
D. Potential energy to kinetic energy
Everyday Science Mcqs · Easy · 1 month ago
Vitamin B3 is also known as__________?
A. Thiamine
B. Riboflavin
C. Niacin
D. Retinol
Everyday Science Mcqs · Easy · 1 month ago
Who invented bifocal eyeglasses?
A. Ibn-e-Haitem
B. Benjamin Franklin
C. Archemedes
D. None
Everyday Science Mcqs · Easy · 1 month ago
The Temperature of the surface of Sun is_______?
A. 5,778 Kelvin
B. 6,778 Kelvin
C. 7,778 Kelvin
D. 9,778 Kelvin
Everyday Science Mcqs · Easy · 1 month ago
Honey contain glucose and fructose along with some other ingredients, it has greater viscosity due to____________?
A. hydrogen bonding
B. irregular shape of the molecules
C. irregular shape of the molecules and strong inter-molecular forces
D. greater molecular size
Everyday Science Mcqs · Easy · 1 month ago
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