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Post the hardest MCQs !!
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The first one was a bit tricky the others were easy.
In one such pump the long approach pipe holds 500kg of water. A valve shuts when the speed of
this water reaches 2.0ms–1 and the kinetic energy of this water is used to lift a small quantity of
water by a height of 15m.
The efficiency of the pump is 10%.
Which mass of water could be lifted 15m?
A 0.15kg B 0.68kg C 1.5kg D 6.8kg
answer is C for 13? Which year paper is this and what is the component code? I got 'C' for the question number 28 as well and 'B' for question number 10.
Your right, and this is March 2017.answer is C for 13? Which year paper is this and what is the component code? I got 'C' for the question number 28 as well and 'B' for question number 10.
You get diameter 4.81mm so for radius d/2 and convet mm to m.Solve this please... Answer is C. I get A
Q13 F1d1 + F2d2 =Ftdtque no 13 and 14 as well please
Thanks! i forgot to calculate radius and was recklessly using value of D in the formula (4/3)*pi*r^3You get diameter 4.81mm so for radius d/2 and convet mm to m.
In m 4.81/2/1000
Next u find the volume using 4/3pi r^3
Density =mass(kg)/volume(m^3)
Convert g to kg 0.450/1000 ÷vol and you get C as the answer.
Did you solve Q14, march 2017 ?Thanks! i forgot to calculate radius and recklessly using value of D in the formula (4/3)*pi*r^3
Component Code?Did you solve Q14, march 2017 ?
Do Post it.
thankyou so much!Q13 F1d1 + F2d2 =Ftdt
16000*0.6 +9000*2.1 =(16000+9000)*
28500÷2500=s
d=1.14m
variant 12Component Code?
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