Following statements are regarding to the heat production by the activation of sympathetic nervous system.

A. Activation is stimulation of β receptors in brown fat, which increases metabolic rate and heat production.

B. Activation is stimulation of α2 receptors in brown fat, which increases metabolic rate and heat production.

C. Stimulation of α1 receptors in vascular smooth muscle of skin blood vessels, producing vasoconstriction. Vasoconstriction reduces blood flow to the surface of the skin.

D. Stimulation of α1 receptors in vascular smooth muscle of skin blood vessels, producing vasodilation. Vasodilation reduces blood flow to the surface of the skin.

Which of the following combination is correct?

TLS Online TPP Program

#Question id: 7495

#General Aptitude

A train 100 m long is running at the speed of 30 km/hr. Find the time taken by it to pass a man standing near the railway line.

TLS Online TPP Program

#Question id: 7496

#General Aptitude

A goods train runs at the speed of 63 km/h and crosses a 250 m long bridge in 28 s, what is the length of the goods train?

TLS Online TPP Program

#Question id: 7497

#General Aptitude

How many seconds will a 375 m long train take to cross a man walking with a speed of 2 km/h in the direction of the moving train, if the speed of the train is 56 km/h?

TLS Online TPP Program

#Question id: 7498

#General Aptitude

Two trains of length 250 m and 140 m are running on parallel lines in the same direction at 58 km/h and 32 km/h respectively. Find the time taken by the slower train to pass the driver of the faster one.

TLS Online TPP Program

#Question id: 7499

#General Aptitude

Two trains, one from A to B and the other from B to A, start simultaneously. After theymeet, the trains reach their destinations after 4 h and 9 h respectively. The ration of their speeds is

TLS Online TPP Program

#Question id: 7500

#General Aptitude

A man is standing on a railway bridge which is 180 m long. He finds that a train crosses the bridge in 20 seconds but himself in 8 seconds. Find the length of the train and its speed.