In an MRI machine, which one of the following is used...? Mcqs

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In an MRI machine, which one of the following is used...?

(A) Sound wave
(B) ‘X’-ray

(C) Ultra-sound wave
(D) Magnetic wave

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Which simple machines is used in raising the flag...?

(A) Scissors
(B) Pliers

(C) Pulley
(D) Wheels

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Which simple machine would stairs be an example of...?

(A) Pulley
(B) Inclined Plane

(C) Lever
(D) Wheel

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The centrifuge machine used for separation of _______...?

(A) Juice
(B) pH

(C) Mud
(D) Crystal

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A photostat machine works on _____________...?

(A) electromagnetic image making
(B) magnetic image making

(C) thermal image making
(D) electrostatic image making

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A simple machine that uses grooved wheels and a rope to raise, lower or move a load is known as...?

(A) Pulley
(B) Lever

(C) Incline Plane
(D) Wedge

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Which gas does a Photocopier machine produce...?

(A) Ozone
(B) carbon dioxide

(C) Sulfur dioxide
(D) None of these

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Select the mismatched one of the followings...?

(A) Plastids → Storage of chemicals
(B) Centriole → Help in cell division

(C) Ribosomes → Synthesis of steroids
(D) Mitochondria → Synthesis of ATP

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A type of sample machine which is used to move heavy objects up or down over a vertical Height is known as...?

(A) Inclined plane
(B) Layer

(C) Wedge
(D) Fulcrum

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Washing machine is working on the principle of...?

(A) Photoelectric effect
(B) Electric-magnetic induction

(C) Centrifugation
(D) None of these

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A man is standing on a weighing machine in a lift which is moving. The weighing machine will slow MINIMUM reading when, the lift is moving...?

(A) Upward with uniform speed
(B) Downward with uniform acceleration

(C) In a free fall due to failure of the lift mechanism
(D) None of these

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Select the mismatched one of the following...?

(A) Plantae → Pteridophyta
(B) Fungi → Mucor

(C) Protista → Paramecium
(D) Animalia → Amoeba

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If a machine performs 20 J of work in 10 sec. then it power is ______...?

(A) 200 watt
(B) 20 watt

(C) 2 watt
(D) 0.2 watt

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Who is the inventor of the first magnetic resonance imaging (MRI) machine...?

(A) Godfrey Hounsfieldv
(B) Mattias Schleiden

(C) Raymond Damadian
(D) Theodore Schwann

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