A chimney works best if air exposed to the chimney is______________?

Related Mcqs:

1. In n-p-n transistor, p works as______________?

   A. collector
   B. emitter
   C. base
   D. any of above

2. A photostat machine works on _____________?

   A. electromagnetic image making
   B. magnetic image making
   C. thermal image making
   D. electrostatic image making

   Submitted by: Abid Hussain

3. The normal blood pressure range for a human body is______________?

   A. 120 to 80 torr
   B. 100 to 80 torr
   C. 120 to 60 torr
   D. 60 to 140 torr

4. An A.C series circuit containing 4Ω resistance and 3Ω inductive reactance. The impedance of the circuit is______________?

   A. 1Ω
   B. 5Ω
   C. 7Ω
   D. 7Ω

5. The direction of the linear velocity of a body moving in a circle is______________?

   A. along the axis of rotation
   B. along the tangent
   C. directed towards the centre
   D. directed away from the centre

6. A stone is whirled in a vertical circle at the end of a string. When the stone is at the highest position the tension in the string is______________?

   A. Maximum
   B. Zero
   C. Equal to the weight of the stone
   D. Less than the weight of the stone

7. The angular speed for daily rotation of the earth in rad S-1 is______________?

   A. 7.3 x 10 radians/second
   B. 7.3 x 5 radians/second
   C. 3.7 x 10 7.3 x 5 radians/second
   D. 7.3 x 10-5 radians/second

8. The planet nearest to the earth is______________?

   A. Venus
   B. Mercury
   C. Uranus
   D. Sun

9. The velocity of a particle of mass m of de-Broglie wavelength λ is______________?

   A. v = 3 ×× 106 ms-1
   B. v = 2 ×× 10 ms-1
   C. v = 2 ×× 6 ms-1
   D. v = 2 ×× 106 ms-1

10. The operational amplifier is______________?

    A. A high gain amplifier
    B. A high-power amplifier
    C. A high resistance amplifier
    D. A low resistance amplifier