Chapter 4 INSTRUMENT TRANSFORMER MCQs 10 min Score: 0 Attempted: 0/10 Subscribe 1. . What is the current transformer? (A) Transformer used with a D.C. ammeter (B) Transformer used with an A.C. ammeter (C) Transformer used with an A.C. voltmeter (D) Transformer used with a D.C. voltmeterShow All Answers 2. . What is the potential transformer? (A) Transformer used with an A.C. voltmeter (B) Transformer used with a D.C. ammeter (C) Transformer used with a D.C. ammeter (D) Transformer used with an A.C. voltmeterShow All Answers 3. . C.T. and P.T. are used for _________ (A) Measuring low current and voltages (B) Measuring very low current and voltages (C) Measuring intermediate currents and voltages (D) Measuring high currents and voltagesShow All Answers 4. . The primary winding of a C.T. has _________ (A) A larger number of turns (B) No turns at all (C) Intermediate number of turns (D) A few turnsShow All Answers 5. . The secondary winding of a C.T. has _________ (A) A large number of turns (B) A few turns (C) No turns at all (D) Intermediate number of turnsShow All Answers 6. . The primary winding of a P.T. has _________ (A) Intermediate number of turns (B) No turns at all (C) A larger number of turns (D) A few turnsShow All Answers 7. . Turns ratio for a C.T. is _________ (A) n = Ns ⁄ Np (B) n = Np ⁄ Ns (C) n = 1 ⁄ Np (D) n = NsShow All Answers 8. . Current transformers and potential transformers are used to increase the ranges of (A) DC ammeter and AC voltmeter respectively (B) AC ammeter and DC voltmeter respectively (C) DC ammeter and DC voltmeter respectively (D) AC ammeter and AC voltmeter respectivelyShow All Answers 9. . The transformer ratio of the transformer depends upon the (A) Exciting current (B) Secondary current (C) Power factor of secondary circuit (D) All of theseShow All Answers 10. . The potential transformers are used to measure large voltage using (A) High range voltmeter (B) Low range voltmeter (C) High range ammeter (D) Low range ammeterShow All Answers
