DGCA Air Navigation: Turn & Slip / Turn Co-ordinator Questions
81 exam-style Turn & Slip / Turn Co-ordinator questions for the DGCA Air Navigationpaper (CPL & ATPL). The first 12 are free below with answers and explanations — sign up free to practise all of them with progress tracking.
- Q1
The ball in a serviceable slip Indicator is....... by.....and....... Indicate/s the state of slip?
- AHeld central Gravity Does not always.
- BPositioned Acceleration Does not always
- CHeld central Gravity Always.
- DPositioned Acceleration Always
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Correct answer: C. Held central Gravity Always.
The slip ball is held central by gravity and always shows the balance (slip/skid) state.
- Q2
The turn indicator is affected by? 1. AOB. 2. Airspeed. 3. Weight. 4. Altitude.
- A1, 2
- B2, 3
- C3, 4.
- D4, 5
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Correct answer: A. 1, 2
Rate of turn, hence the turn indicator, depends on angle of bank and airspeed.
- Q3
How is the Rate of Turn (RoT) related to True Airspeed (TAS)?
- ARoT increases as TAS decreases
- BRoT decreases as TAS increases
- CRoT remains constant regardless of TAS
Show answer
Correct answer: B. RoT decreases as TAS increases
The Rate of Turn is inversely proportional to True Airspeed. As TAS increases, the aircraft takes a wider turn radius, reducing the rate of turn, assuming a constant bank angle.
- Q4
A turn indicator used in conjunction with an attitude indicator will show? 1. Turn direction. 2. Rate of turn, 3. Angular velocity about the true vertical axis. 4. Angular velocity about the aircraft vertical axis. 5. Angular velocity about the longitudinal axis.
- A1, 2.
- B1,3
- C1, 2, 4.
- D2, 3, 5,
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Correct answer: C. 1, 2, 4.
It shows turn direction, rate of turn, and angular velocity about the aircraft's vertical axis.
- Q5
ROT indications are?
- AProportional to TAS
- BProportional to CAS.
- CProportional to mass.
- DProportional to EAS.
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Correct answer: A. Proportional to TAS
Rate of turn is a function of true airspeed (TAS).
- Q6
On a Turn and Slip indicator, needle to the left and ball to the right indicates:
- Aright turn not enough bank
- Bleft turn too much bank
- Cleft turn not enough bank
- Dright turn too much bank
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Correct answer: B. left turn too much bank
This Explanation is Coming Soon
- Q7
A turn indicator has? 1. A horizontal spin axis. 2. A vertical spin axis. 3. One degree of freedom. 4. Two degrees of freedom. 5. A spin axis tied to the yawing plane of the aircraft, 6. A gravity erecting unit.
- A1,3
- B1, 5.
- C3, 5.
- D4, 6.
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Correct answer: A. 1,3
A rate-of-turn gyro has one degree of freedom and a horizontal spin axis.
- Q8
When both the needle and ball of a turn and slip Indicator are displaced to the right the aircraft is?
- ATurning right with insufficient bank.
- BTurning right with too much bank.
- CTurning left with too much bank.
- DTurning left with insufficient bank.
Show answer
Correct answer: B. Turning right with too much bank.
Ball inside a right turn (right) indicates too much bank — slipping.
- Q9
When both the needle and ball of a turn and slip indicator are displaced to the right the aircraft is?
- ATurning right with too much TAS.
- BTurning right with insufficient TAS.
- CTurning left with too much TAS.
- DTurning left with insufficient TAS.
Show answer
Correct answer: B. Turning right with insufficient TAS.
A right-turn slip (ball right) means too much bank for the speed, i.e. insufficient TAS.
- Q10
When the needle is displaced right and the ball displaced left, in a turn and slip indicator, the aircraft is?
- ATurning right with insufficient bank
- BTurning left with too much bank.
- CTurning left with insufficient TAS.
- DTurning right with too much bank.
Show answer
Correct answer: A. Turning right with insufficient bank
Needle right with ball skidding out (left) shows a right turn with insufficient bank.
- Q11
An aircraft is travelling at 120 kt, what angle of bank would be required for a rate one turn?
- A30°
- B12°
- C19°
- D35°
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Correct answer: C. 19°
This Explanation is Coming Soon
- Q12
The turn needle indicates ....... in a slightly banked turn?
- AAngular velocity about the vertical axis.
- BAngular acceleration about the vertical axis.
- CAngular velocity about the lateral axis.
- DYaw displacement.
Show answer
Correct answer: A. Angular velocity about the vertical axis.
The turn needle senses angular velocity (rate of turn) about the vertical axis.
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