List of practice Questions

For a conventional fixed-wing aircraft, which of the following statements are true?
A thin-walled cylindrical tank is internally pressurized. If the hoop strain is thrice the axial strain, the Poisson's ratio of the material is \(\underline{\hspace{1cm}}\) (correct to one decimal place).
For the jet aircraft data provided, the speed for maximum endurance in steady level flight is \(\underline{\hspace{1cm}}\) m/s (round off to two decimal places).
Compute the velocity required from Earth's surface to reach a circular orbit at 250 km altitude (round off to two decimals).
Earth data: \( GM_e = 398600.4 \, \text{km}^3/\text{s}^2 \), \( R_0 = 6378.14 \, \text{km} \)
Which of the following statement(s) is/are true with regards to Kutta condition for flow past airfoils?
According to the thin airfoil theory, which of the following statement(s) is/are true for a cambered airfoil?
Given that $\zeta$ is the unit circle in counter-clockwise direction, evaluate:
\[ \oint_{\zeta} \frac{z^3}{4z - i} \, dz \] (round off to three decimal places).
A spring-mass-damper system (m = 10 kg, k = 17400 N/m) has natural frequency 13.2 rad/s. Find the damping coefficient $c$ for critical damping (round off to nearest integer).
Two cantilever beams of same material & cross-section have lengths $l$ and $2l$. Find the ratio of their first natural frequencies (round off to nearest integer).
The shape of a supersonic diffuser that slows down a supersonic flow to subsonic flow is
The combustion process in a turbo-shaft engine during ideal operation is:
How does the specific thrust of a turbojet engine change for a given flight speed with increase in flight altitude?
How does the propulsion efficiency of a turbofan engine, operating at a given Mach number and altitude, change with increase in compressor pressure ratio?
A solid propellant rocket producing 25 MN thrust is fired for 150 seconds. The specific impulse of the rocket is 2980 Ns/kg. How much propellant is burned during the rocket operation?
Consider the velocity field \[ \vec{V} = (2x + 3y)\hat{i} + (3x + 2y)\hat{j}. \] The field \( \vec{V} \) is:
A recently registered enterprise started first time the business of online food delivery services using drones in its locality. This type of business can be an example of
The ______ plan shows whether the business is economically feasible or not.
Which of the following describes a mission statement of start up?
The process of gathering information about market or socio-economic trends is called
A business where an individual is both the owner and conductor of the business affairs is called
What is the title of the Authorised Biography of J.R.D. TATA?
Innovation management involves managing
Which one of the following Ministry publishes the Economic Survey of India?
The executive summary of business plan should be prepared
Which of the following indicators are parts of the Inclusive Development Index?
(A) Living Standards 
(B) Environmental Sustainability   
(C) Protection of Future Generations from Further Indebtedness 
(D) Financial Inclusion