Related Mcqs:

1. All the atoms of the world comprise of electrons, proton & neutron except that of ______________ atom in which neutron is absent ?

   A. Deuterium
   B. Hydrogen
   C. Neon
   D. Helium

2. Energy to be supplied to the radioactive nucleus for the emission of a neutron is ________________ MeV?

   A. 0.8
   B. 7.8
   C. 200
   D. 10000

3. Two wires of the same radius & material having length in the ratio of 1 : 2 are stretched by the same force. The strain produced in the two wires will be in the ratio of__________________?

   A. 1 : 1
   B. 1 : 2
   C. 2 : 1
   D. 1 : 4

4. The ratio of thermal & electrical conductivity is same for all the metals at the same temperature; and at around room temperature, this ratio is proportional to(where, T = absolute temperature, °K) ?

   A. T
   B. 1/T
   C. T2
   D. 1/T2

5. In practice, the compression ratio of compression-ignition (CI) engine ranges from ______________________?

   A. 15 to 25
   B. 5 to 10
   C. 40 to 55
   D. 60 to 70

6. The ratio of the shear stress to the principal stress on a principal plane is______________________?

   A. 0
   B. 1
   C. 1/2
   D. 1/3

7. Air/fuel ratio by weight for combustion of methane with theoretical quantity of air will be about ____________________?

   A. 9 : 1
   B. 17 : 1
   C. 23 : 1
   D. 29 : 1

8. Air/fuel ratio on molar (volume) basis for combustion of methane with theoretical quantity of air with be________________?

   A. 9.5 : 1
   B. 12.5 : 1
   C. 15.5 : 1
   D. 18.5 : 1

9. Euler number is defined as the ratio of inertia force to _______________ force?

   A. Pressure
   B. Elastic
   C. Gravity
   D. Viscous

10. If the head is doubled in & centrifugal pump, the power required will increase in the ratio of__________________?

    A. 23
    B. 23/2
    C. 25/2
    D. 21/3