MCQ
Control rods used in nuclear reactors are made of:
  • A
    Stainless steel.
  • B
    Graphite.
  • C
    Cadmium.
  • D
    Plutonium.

Answer

  1. Cadmium.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

In general, metallic ropes are suspended on the carriers which take inflammable material. The reason is

(a) There speed is controlled

(b) To keep the centre of gravity of the carrier nearer to the earth

(c) To keep the body of the carrier in contact with the earth

(d) Nothing should be placed under the carrier

The speed at which the current travels in a conductor, is nearly.

Lenz's law gives

(a) The magnitude of the induced e.m.f.

(b) The direction of the induced current

(c) Both the magnitude and direction of the induced current

(d) The magnitude of the induced current

Magnitude of potential difference across L. C and R in a series LCR circuit is 100 V. If resistor is re- moved, then magnitude of current in the circuit is:
A rectangular loop carrying a current i1​, is situated near a long straight wire carrying a steady current i2​. The wire is parallel to one of the sides of the loop and is in the plane of the loop as shown in the figure. Then the current loop will:

The specific resistance of a wire is ρ, its volume is 3  and its resistance is 3 ohms, then its length will be

(a)  

(b)  

(c)

(d)

A charged particle enters a magnetic field H with its initial velocity making an angle of 45° with H. Then the path of the particle will be:

The voltage gain of the following amplifier is

(a) 10

(b) 100

(c) 1000

(d) 9.9

Which among the following is the source of the magnetic field (magnetism)?

The principle of controlled chain reaction is used in

(a) Atomic energy reactor

(b) Atom bomb

(c) The core of sun

(d) Artificial radioactivity