North polar stereographic chart is overprinted with a false grid. At 770N 370W the grid track is 1750 and the true track is 0930. At which longitude is the false grid aligned?

1) Which one of the following is an advantage of a remote reading compass as compared with a standby compass?

2) A gyromagnetic compass or heading reference unit is an assembly which always consists of :1- a directional gyro2- a vertical axis gyro3- an earth's magnetic field detector4- an azimuth control5- a synchronising controlThe combination regrouping all the correct statements is :

3) If the rhumb line track from Turn (45N 008E) to khartoum (15N 032E) is 145oT, what is the direction of the great cirlce track measured at Turn?

4) A Southern Lamberts conformal conic chart is overprinted with a false grid aligned with the 1800W meridian. The constant of the cone is 0.843. If the true track at 1450E is 3330 will the grid track be:

5) North polar stereographic chart is overprinted with a false grid. At 770N 370W the grid track is 1750 and the true track is 0930. At which longitude is the false grid aligned?