Related Questions

Two men and women are entrusted with a task. The second man needs three hours more to cope up with the job than the second man and the woman would need working together. The first man, working alone, would need as much time as second man and the woman working together. The first man working alone, would spend eight hours less than the double period of the time second man would spend working alone. How much time would the two men and the women need to complete the task if they all asked together?
A 1 hour
B 2 hours
C 3 hours
D 4 hours
E 5 hours
High resistance electrical heating elements/wire are not made of
A Marageing steel
B Nimonic alloys
C Kanthal wire
D Nichrome
Resistance variation method of temperature control is done by connecting resistance elements in
A Series
B Parallel
C Series-parallel connections
D All of the above ways
An alloy used in making heating elements for electric heating device is
A Solder
B Alloy Steel
C Nichrome
D German Silver
In an electric room heat convector the method of heating used is Resistance heating
A True
B False
Which of the following metal is used in making electrical resistance wire for electric furnaces and heating elements?
A Babbitt metal
B Monel metal
C Nichrome
D Phosphor bronze
Heating wet steam at constant temperature is heating it at constant
A Volume
B Pressure
C Entropy
D Enthalpy
If A has 4 elements and B has 8 elements then the minimum and maximum number of elements in A∪B are respectively __
A 4,8
B 8,12
C 4,12
D 6,12
The average mark obtained by 15 students was 10 and the average mark obtained by 10 students was 15. What was the average mark obtained by all students?
A 10
B 8
C 12
D 15
The average mark obtained by 10 students was 6 and the average mark obtained by 6 other students was 10. What was the average mark obtained by all 16 students?
A 10
B 8
C 7.5
D 8.5

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