HAL Sample Placement Papers For Aeronautical / Avionics / Aerospace Engineering

HAL Sample Placement Papers For Aeronautical / Avionics / Aerospace Engineering



1. Air Fuel ratio in a jet engine will be of the order of:
(a) 10:1
(b) 15:1
(c) 20:1
(d) 60:1

2. Fighter bombers use following type of engine:
(a) Turbo-jet
(b) Turbo-propeller
(c) Rocket
(d) Ram-jet

3. Least shrinkage allowance is provided in the case of following:
(a) Brass
(b) Aluminium
(c) Cast Iron
(d) Steel

4. If V is the volume of metal in a casting and A its surface area, the time of solidification will be proportional to:
(a) V, 1/A
(b) V,1/A2
(c ) V2 ,1/A
(d) V2, 1/A2

5. Fire tube boilers are limited to a maximum design working pressure of :
(a) 1 kg/cm2
(b) 6 kg/cm2
(C) 17 kg/cm2
(d) 100 kg/cm2