TANCET2007(Q11toQ20)

TANCET (Questions from Question Paper for Year 2007)

11. Mach Number is defined as the between true air speed and speed of the sound at
A) sea level
B) any altitude
c) a particular altitude
D) all altitudes

12. Generally the aircraft electrical system uses suply frequency of
A) 50 Hz
B) 60 Hz
C) 400 Hz
D) 115 Hz

13. In GPS Navigation, there can be integration between
A) GPS and INS
B) GPS and LORAN C
C) GPS and ILS
D) GPS and DME

14. In FM transmission, amplitude of modulating signal determines
A) rate of frequency Variations
B) amount of frequency shift
c) totel balance of transmission
D) distance of broadcast

15. The purpose of duplexer is
A) to convert TDM to FDM
B) to provide some antenna both for transmission and reception
c) to convert pulsed transmission to CW transmission
D) bort (1) and (3)

16. Which of the following types of transducers can be used for measuring the angular position?
P) circular potentiometer
Q) LVDT
R) E-Pick off
S) Sychro
Select the correct answer using the code given below
A) P, Q, R and S
B) P and R
C) P, Q and S
D) P and S

17. The most suitable thermocouple to be used for measuring temperature in the range of 1300o C to 1500o C is
A) Chromal Constantan
B) Iron Constantan
C) Chromal Alumel
D) Platinum Rhodium

18. A resistor of 5 ohms is connected in one branch of complex network. The current in the branch is 5 amps. If this 5 ohms resistor is replaced by 10 ohms resistor, the current in this branch will be
A) 10 A
B) 2.5 A
C) 5 A
D) less than 5 A

19. For a voltage source
A) Source emf and terminal voltage are equal.
B) Terminal voltage is always lower than source emf.
C) Terminal voltage cannot be higher than source emf.
D) Terminal voltage is zero.

20. A zener diode works on the principle of
A) Tunneling of charge carriers across the junction
B) Thermionic emission
C) Diffusion of charged carriers across junction
D) Dopping of charged carriers across junction

Answer: 11-B; 12-D; 13-B; 14-A; 15-B; 16-D; 17-D; 18-D; 19-B; 20-A.