- Plankton
- Benthos
- Nekton
- Neuston
1 Answers
Call
Talk Doctor Online in Bissoy App
The strain energy stored in a body, when the load is gradually applied, is (where σ = Stress in the material of the body, V = Volume of the body, and E = Modulus of elasticity of the material)?
Answer: Option 4 Let'
1 Answers 1 views
The natural frequency of free longitudinal vibrations is equal to (where m = Mass of the body, s = Stiffness of the body and $$\delta $$ = Static deflection of the body)?
Answer: Option 4 Let'
1 Answers 6 views
The change in length due to a tensile or compressive force acting on a body is given by (where P = Tensile or compressive force acting on the body, $$l$$ = Original length of the body, A = Cross-sectional area of the body and E = Young's modulus for the material of the body)?
Answer: Option 2 Let'
1 Answers 2 views
Which of the following is an equation of linear motion (where, u and v = Initial and final velocity of the body, a = Acceleration of the body and s = Displacement of the body in time t seconds.)?
Answer: Option 4 Let'
1 Answers 1 views
Fourier's law of heat conduction is (where Q = Amount of heat flow through the body in unit time, A = Surface area of heat flow, taken at right angles to the direction of heat flow, dT = Temperature difference on the two faces of the body, dx = Thickness of the body, through which the heat flows, taken along the direction of heat flow, and k = Thermal conductivity of the body)?
Answer: Option 1 Fourier's law of heat conduction is k. A. (dT/dx) where Q = Amount of heat flow through the body in unit time, A = Surface area of heat...
1 Answers 1 views
Directions : Each of the following question consists of a statement followed by two arguments I and II. You have to decide which of the arguments is a STRONG arguments and which is a WEAK Argument. Statement : Should high chimneys be installed in industries Arguments : I. Yes. It reduces pollution at ground level. II. No. It increases pollution in upper atmosphere.?
Answer: Option 1 Pollution at ground level is the most hazardous in the way of being injurious to human and animal life. So, argument I alone holds.
1 Answers 1 views
Directions : Each of the following question consists of a statement followed by two arguments I and II. You have to decide which of the arguments is a STRONG arguments and which is a WEAK Argument. Statement : Can pollution be controlled Arguments : I. Yes. If everyone realizes the hazards it may create and cooperates to get rid of it, pollution may be controlled. II. No. The crowded highways, factories and industries and an ever-growing population eager to acquire more and more land for constructing houses are beyond control.?
Answer: Option 3 The control of pollution, on one hand, seems to be impossible because of the ever-growing needs and the disconcern of the people but, on the other hand,...
1 Answers 2 views
Statement : The meteorological department has issued a notification forecasting less rainfall during next year's monsoon. Courses of Action : I. The government should immediately set up a water authority for proper management of water resources. II. The water supply authorities should be asked to implement reduction in regular water supply to tackle the situation. III. The farmers should be advised to cultivate alternate crops which require less water during the coming months.?
Answer: Option 1 Getting the information well in advance clearly suggests that adequate water be saved for the crisis by proper management and moderate cuts in water supply. Cultivating alternate...
1 Answers 2 views
Which of the following is the best indicator of the actual amount of water vapour in the air?
Answer: Option 4 Dew point is a good indicator of the air's actual water vapour content, unlike relative humidity, which takes the air's temperature into account. High dew point indicates...
1 Answers 1 views