khan djimo

[kyawbo]

The …….. is the product of the force and velocity.

1. The rate of doing work is defined as ……. .
2. The rate of doing work is ………. .
3. In British engineering system, the power of motors and engines are also expresses in ….... .
4. 1 hp is equal to …..erg s-1.
5. One mega watt is equivalent to ……… watt.
6. If the work done in 9s is 63 J, the power is ……. .
7. There are …….. W in 1 hp.
8. 1 kW power is ……… than 1 hp.
   . 3 B. 4 C.5 D. 6 E.8
9. If a:b=3:8 and b:c=4:5, then a:c=…………..
   A. 5:11 B. 3:8 C. 3:11 D. 3:10 E. 5:8
10. If a:b=3:5 and b:c=3:5, then a:b:c=………
    A. 2:3:5 B.3:5:7 C.6:10:15 D. 9:15:25 E.9:20:27
11. If a:b = 5:3 , then 3a+ 4b: 4a+3b is
    A. 27:36 B. 29:27 C. 27:29 D. 26:29 E. 17:19
12. If 2x +3y:2x+y=3:2, then x:y=……….
    A. 3:2 B. 2:3 C. 4:3 D. 3:4 E. None of them