GATE AE year:2017 PYQs & Answers — Page 2

Questions 11–20 of 65. Imported answers require independent review unless marked reviewed.

Which of the following statement(s) is / are true about the shear centre of a cross-section: P: It is that point in the cross-section through which shear loads produce no twisting. Q: This point is also the centre of twist of sections subjected to pure torsion. R: The normal stress at this point is always zero.

Your answerChoose one option.

P, Q and R

P only

P and Q only

P and R only

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer

Let

and

be respectively the non-dimensional locations of the stick-fixed maneuver point and stick-fixed neutral point of a low speed conventional aircraft. These distances are measured with respect to the nose of the fuselage. The numerical value of

Your answerChoose one option.

will always be negative

will always be positive

will always be zero

can have any value depending on the location of the center of gravity of the aircraft

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer

The phenomenon of rudder lock in conventional low speed aircraft is primarily due to

Your answerChoose one option.

large value of directional derivative,

the sidewash due to fuselage on the vertical stabilizer

the tendency of rudder to float rapidly at high angles of side-slip

the sidewash due to wing on the vertical stabilizer

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer

The period of revolution of earth about the sun is 365.256 days, approximately. The semi-major axis of the earth’s orbit is close to

m. The semi-major axis of the orbit of Mars is

m. The period of revolution of Mars, about the sun, is __________ Earth days (in three decimal place)

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer

Consider a system consisting of certain amount of perfect gas enclosed in a cylinder fitted with a frictionless piston. This system can undergo following processes (i) Expansion with finite pressure difference with the surrounding. (ii) Compression with infinitesimal pressure difference with the surrounding. (iii) Heat transfer with finite temperature difference with the reservoir. (iv) Heat transfer with infinitesimal temperature difference with the reservoir. Out of these which processes are reversible?

Your answerChoose one option.

(i) and (iii)

(i) and (iv)

(ii) and (iii)

(ii) and (iv)

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer

Among the following engines, which one is expected to have the maximum Specific Impulse?

Your answerChoose one option.

Cryogenic Rocket

Solid Propellant Rocket

Liquid Propellant Rocket

SCRAM Jet

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer

The maximum gas flow rate that can be handled by a multistage axial compressor at a given rotational speed is dictated by

Your answerChoose one option.

Compressor Surge

Rotating Stall

Choking

Optimum Design Pressure Ratio

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer

For a turbine stage, which one of the following losses occurs due to the turning of the wall boundary layer through an angle due to curved surface?

Your answerChoose one option.

Profile loss

Annulus loss

Tip clearance loss

Secondary flow loss

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer

In the vane-less space between the impeller and the diffuser vanes in a Centrifugal Compressor, the angular momentum varies in the following manner in the radial direction

Your answerChoose one option.

Increases

Remains constant

Decreases

First increases and then decreases

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer

Which of the following statements about the neutral axis of a beam with unsymmetrical cross section is true:

Your answerChoose one option.

The product of second moment of area about the neutral axis is always zero.

The normal stress along the neutral axis is always zero.

The shear stress along the neutral axis is always zero.

The product of second moment of area about the neutral axis and the normal stress about the neutral axis are always zero.

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer

GATE AE year:2017 PYQs

Question 11

Question 12

Question 13

Question 14

Question 15

Question 16

Question 17

Question 18

Question 19

Question 20