General Science MCQ-8

Consider the following statements.

1) Development of fruit without fertilisation is called parthenocarpy.
2) Parthenocarpy can be induced artificially by spraying flowers with growth promoting hormones.

Select the correct code given below.

(A) 1 only
(B) 2 only
(C) 1 & 2 only
(D) neither 1 nor 2

Consider the following statements regarding plant cells?

(A) Nucleus in plant cell is elliptical in shape.
(B) Mitochondria are fewer.
(C) Plant cells do not burst if placed in hypotonic solution.

Which of the above are true?

(A) A, B only
(B) B only
(C) C only
(D) All of the above

Consider the following statements.

(A) The carpals makeup the wrist joint
(B) Tarsals are in the ankle joint
(C) Each hands or foot ends in 5 digit composed of metacarpals.

Which of the above are true?

(A) All of the above
(B) None of the above
(C) A & B only
(D) B & C only

Consider the following statements.

(A) The hypothalamus regulates homeostasis.
(B) The mid brain & Pons are also part of the unconscious brain.
(C)The thalmus serves as a central relay point for incoming nervous messages.

Which of the above are correct?

(A) A & C only
(B) All of the above
(C) None of the above
(D) A & B

Consider the following statements

(i) Rheumatic heart disease generally the valves of the heart are involved
(ii) Coronary heart diseases affect individuals of higher age group.
(iii)Fatty substances block the coronary arteries truly undoing blood supply to the heart.

Which of the above are correct?

(A) All of the above
(B) None of the above
(C) i&ii
(D) ii & iii

Consider the following statements regarding vitamin.

(a) Vitamin C keeps our skin & eyes healthy.

(b) Vitamin D fights against diseases

(c) Vitamin A helps by calcium for bones & teeth

Which of the above are true?

(A) B & C only
(B) B only
(C) All of the above
(D) None of the above

Consider the following statements.

(i) Synthetic fibers are made artificially. They do not absorb much water.
(ii) Such fabrics are known as drip dry fabrics.
(iii) They are different in structure from natural fibers.

Which of the above are correct?

(A) i & ii
(B) ii & iii
(C) i & iii
(D) All

Consider the following statements

(i) India is the only country to produce of radioisotopes in the world
(ii) Dhurva, circus & Apsara are used for producing radioisotopes.
(iii) Isotopes are used in agriculture, food, medicine etc.

Which of the above are true?

(A) All of the above
(B) ii&iii
(C) iii only
(D) ii only

Consider the following statements:

(1) Year 2002 was declared as the year of Scientific Awareness by the Govt.
(2) The National Children’s Science Congress aims to relate the learning of science to the environment around involving children in age 10-17 years.
(3) Vigyan Prasar was established to take up large scale science popularisation programmes.

Which of the above statement is / are correct.

(A) all of the above
(B) 2 & 3 only
(C) none of the above.
(D) 1 only

Two persons ordered tea in a road-side restaurant and waited for a friend to arrive. One of them poured tea in his cup and mixed cold milk and the other poured his tea and mixed the milk after the friend arrived.
Now the temperature of the tea:

(A) of the first person is greater
(B) of the second person is greater
(C) of the two persons is the same
(D) of the first person is half of the temperature of the tea of the second person.

The refractive index of glass with respect to water is 9/8 . It implies that

(A) the speed of light is 9 times and 8 times faster in glass and water, respectively with respect to vacuum
(B) the speed of light in glass is 9/8 times-faster than water
(C) the speed of light is 9 times and 8 times slower in glass and water, respectively with respect to vacuum
(D) none of these