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Browse complete papersA steel rod with the thermal conductivity of 50.2 W /(m-K) has an area of cross-section 0.02 m2 and length 15 cm. If the two ends of the rod are maintained at a temperature difference of 300°C, the rate of heat flow through the rod is:
2.0 kJ/s
1.0 kJ/s
4.0 kJ/s
3.0 kJ/s
Correct answer
2.0 kJ/s
What is the minimum number of lines required to make the given image?
12
11
9
10
Correct answer
12
The ages of X and Y are in the ratio 4 : 5 After 6 years, the ration will become 6 : 7. What is the current age of Y (in years)?
20
5
10
15
Correct answer
20
A 0.5 kg ball is released from the top of a building of a height of 20 m. Find the kinetic energy of the ball, just before it hits the ground (assume g = 10 m/s2).
80 J
40 J
20 J
100 J
Correct answer
80 J
What is the mean of 2, 5, 8, 14, 21?
10
9
8.5
9.5
Correct answer
10
Which country does not form a part of the Middle East?
Turkey
Honduras
Yemen
Syria
Correct answer
Turkey
A series is given, with one number missing. Choose the correct alternative from the given ones that will complete the series.
0.35, 0.49, 0.63, 0.77, ? 1.05
0.95
0.83
0.87
0.91
Correct answer
0.95
A continuous and closed path of an electric current is called as:
Electric circuit
Short circuit
Magnetic circuit
Junction
Correct answer
Electric circuit
The ratio of resistance to overcome to the effort applied is referred to as:
Load
Mechanical advantage
Velocity of load
Velocity of effort
Correct answer
Load
What is the maximum number of auxiliary views of any given object?
6
1
3
Infinite
Correct answer
6