Yearly Archives: 2023

What is the role of neurotransmitters in nerve impulses?

A. They create the electrical charge of the impulse
B. They transmit the impulse across the synapse
C. They control the strength of the impulse
D. They regulate the frequency of impulses

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Correct Answer: B.They transmit the impulse across the synapse
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How does a nerve impulse travel along an axon?

A. By diffusion
B. By active transport
C. By facilitated diffusion
D. By saltatory conduction

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Correct Answer: D.By saltatory
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Two taps X and Y can fill a tank in 10 hrs. and 15 hrs.respectively. If the both taps are opened together, the tank will be full in_________?

A. 3 hrs.
B. 4 hrs,
C. 5 hrs.
D. 6 hrs.

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Correct Answer: D
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A, B and C together earn Rs.150 per day while A and C together earn Rs.94 and B and C together earn Rs.76. The daily earning of C is:______?

A. 10 Rs,
B. 15 Rs,
C. 20 Rs.
D. 25 Rs.

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Correct Answer: C
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A is thrice as good as B in work. A is able to finish a job in 60 days less than B. They can finish the work in___________days if they work together.

A. 18 days
B. 22 ½ days
C. 24 days
D. 26 days

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Correct Answer:B
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