If steel is heated to a temperature well below red heat and is then cooled slowly, the process is called_________...? Mcqs

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If steel is heated to a temperature well below red heat and is then cooled slowly, the process is called_________...?

(A) Annealing
(B) Quenching

(C) Tempering
(D) Nitriding

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When sound waves travel from air to water which of the following quantities remains unchanged...?

(A) Speed
(B) Frequency

(C) Intensity
(D) Wavelength

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Insufficient blood supply in human body is referred as___________...?

(A) Ischemia
(B) Hyperemia

(C) Hemostasia
(D) Hemorrhage

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Plant utilizes simple inorganic molecules (CO2 and H2O) to prepare _____...?

(A) Glucose and water
(B) Glucose and oxygen

(C) Oxygen and water
(D) Oxygen and Glucose

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When a French bean germinates in soil, a hook like structure emerges that structure is called...?

(A) Hypogeal
(B) Hypocotyl

(C) Micropyle
(D) Testa

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Diesel engine was discovered by___________...?

(A) Paul Muller
(B) Faraday

(C) Waldeyer
(D) Rudolf Diesel

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Dead red blood corpuscles are stored in____________...?

(A) Liver
(B) Spleen

(C) Kidney
(D) Heart

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The most abundant element in human body is __________...?

(A) Hydrogen
(B) Blood

(C) Oxygen
(D) Protein

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Which of the following is not a mammal...?

(A) Fish
(B) Cow

(C) Goat
(D) Whale

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Spinal card controls all ___________...?

(A) Sexual activities
(B) Thinking activities

(C) Reflex activities
(D) none

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