Related Questions

In turbines, the fluid undergoes a continuous steady flow process and the speed of flow is
A Low
B Very low
C High
D Very high
For steady ideal fluid flow, the Bernoulli's equation states that the
A Velocity is constant along a stream line
B Energy is constant throughout the fluid
C Energy is constant along a stream line, but may vary across stream lines
D None of these
If the thermal conductivity of a wall material is independent of temperature, the steady state temperature distribution in the very large thin plane wall having steady, uniform surface tempeature follows __________ law.
A Parabolic
B Hyperbolic
C Linear
D Logarithmic
If the thermal conductivity of a wall material is independent of temperature, the steady state temperature distribution in the very large thin plane wall having steady, uniform surface temperature follows __________ law.
A Hyperbolic
B Parabolic
C Linear
D Logarithmic
A person is standing on a frictionless horizontal ground. How can he move by a certain distance on this ground?
A By sneezing
B By jumping
C By running
D By rolling
The contraction co-efficient for Borda's mouthpiece (for frictionless fluid) is
A 0.1
B 0.5
C 0.94
D 1
m এবং 2m ভরের দুটি আয়তাকার বাক্স একটি ঘর্ষণহীন অনুভূমিক পৃষ্ঠে একটি দড়ি দ্বারা সংযুক্ত। F মাত্রার একটি সম্মুখ বল দ্বারা ভারী বাক্সটিকে ডানদিকে টানা হচ্ছে। ফলে, হালকা বাক্সটি দড়ি দ্বারা টান অনুভব করে। দড়িটিতে টান কত? (Two rectangular boxes of masses m and 2m are on a frictionless horizontal surface and connected by a rope. A forward force of magnitude F is pulling the more massive box toward right. As a result, the less massive box is pulled by the rope. What is the tension in the rope?)
A F
B F/6
C F/3
D F/2
10 g-এর একটি ভর ঘর্ষণহীন একটি অনুভূমিক তলের ওপর দিয়ে গিয়ে দেয়ালের সাথে সংযুক্ত একটি অনুভূমিক স্প্রিংকে 6 m/s বেগে আঘাত করে। যদি স্প্রিংটির স্প্রিং ধ্রুবকের মান 400 N/m হয় তাহলে এটিতে সর্বোচ্চ সংকোচন কত হবে? (A mass of 10 g sliding on a frictionless horizontal surface hits at 6 m/s on a horizontal spring attached to a wall. If the spring has a spring constant of 400 N/m, what is its maximum compression?)
A 0.3 cm
B 3 /√10cm
C 3 cm
D 0.9 cm
According to Bernoulli's equation for steady ideal fluid flow
A Principle of conservation of mass holds
B Velocity and pressure are inversely proportional
C Total energy is constant throughout
D The energy is constant along a streamline but may vary across streamlines
According to Bernoulli’s equation for steady ideal fluid flow
A principle of conservation of mass holds
B velocity and pressure are inversely proportional
C total energy is constant throughout
D the energy is constant along a stream-line but may vary across streamlines

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