Crew Resource Management (CRM) Threat and Error Management (TEM) and Line-Oriented Flight Training (LOFT)Air Regulations — DGCA CPL practice questions
Question 1 of 21
Human errors:
All 21 questions — Crew Resource Management (CRM) Threat and Error Management (TEM) and Line-Oriented Flight Training (LOFT)
Air Regulations · DGCA CPL. The correct option is marked on each.
Q1. Human errors:
- A.Are now considered as being inherent to the cognitive function of human and can be totally eliminated by CRM training.
- B.Are now considered as being inherent to the cognitive function of human and are generally inescapable.✓
- C.Are likely to be eliminated in the near future by higher degree of automation.
Why: The foundational premise of modern Human Factors and TEM is that errors are a normal and inescapable by-product of human cognition. CRM does not try to eliminate errors — it equips crews to manage them (avoid, trap, mitigate). See Section 5 — Foundation 1: errors are normal occurrences and Section 7 — TEM is NOT an attempt to eliminate errors . — Any option containing the words "eliminated", "totally", or "completely removed" alongside human error is almost always a distractor. Bank this rule.
Q2. The error in checklist is related to an interface mismatch between:
- A.Liveware – Liveware.
- B.Liveware – Software.✓
- C.Liveware – Environment.
Why: Checklists are explicitly listed under the Liveware–Software interface as part of "Written Information" (along with manuals, NOTAMs, SOPs, charts). Therefore an error in a checklist is a human–software mismatch. See Section 4.3 — L–S Written Information . — Whenever the question mentions checklists, manuals, NOTAMs, SOPs, charts, computer programs → think L–S .
Q3. CRM training has under-mentioned clear aims in terms of specific skills to develop for the purpose of:
- A.Error avoidance, threat management, system management and undesired aircraft state management.
- B.Error avoidance, threat management, error management and environment management.
- C.Error avoidance, threat management, error management and undesired aircraft state management.✓
Why: These are the four formal aims of CRM training, listed verbatim in the DGCA source. See Section 5.4 — Four Aims of CRM Training . — Memorize the EXACT four: Error Avoidance → Threat Mgmt → Error Mgmt → Undesired Aircraft State Mgmt . The pattern goes from prevention → reaction → recovery .
Q4. A congested cockpit restricting movement is an interface mismatch between:
- A.Liveware – Software.
- B.Liveware – Environment.
- C.Liveware – Hardware.✓
Why: A congested cockpit is a workspace / physical design issue. The source explicitly lists "workspace layout" and "restrictions to movement" under Liveware–Hardware. See Section 4.2 — L–H Workspace . — A useful tag: "Physically touchable" + "machine/airframe-related" = L–H . Cockpit layout, controls, displays, seats — all L–H.
Q5. High noise level in a cockpit is a mismatch between:
- A.Liveware – Liveware.✓
- B.Liveware – Environment.
- C.Liveware – Hardware.
Why: This is a classic DGCA trap. Although noise originates from the environment/machine, the mismatch it causes is at the human-to-human communication interface . The source lists "Noise interference" as the very first item under L–L Oral Communication . High cockpit noise degrades inter-crew communication — that's the operational mismatch. See Section 4.1 — L–L Oral Communication . — The DGCA rule of thumb: noise affecting comms → L–L . This is one of the most frequently misanswered questions in the bank — note it.
Q6. Inefficient warning system in the cockpit is a mismatch between:
- A.Liveware – Liveware.
- B.Liveware – Environment.
- C.Liveware – Software.✓
Why: A "warning system" — its logic, symbology, alerting cues, and procedures — is fundamentally a software concept (computer programs, symbology, procedural alerts), all of which are listed under Liveware–Software. While the physical chime or light is hardware, the warning system as a whole (the question's phrasing) is classified as L–S. See Section 4.3 — L–S Computers / Automation / Written Information . — Treat warning systems , automation logic, EICAS/ECAM alerts, FMS messages, and computer prompts as L–S . The physical button/light hardware is L–H, but the alerting system is L–S.
Q7. A disturbance of the biological rhythm is a mismatch between:
- A.Liveware – Hardware.
- B.Liveware – Software.
- C.Liveware – Environment.✓
Why: Circadian dysrhythmia (jet lag) is caused by time-zone changes in the external environment. The body's biological rhythm is desynchronized from the new local time — a clear human-vs-environment mismatch. See Section 3.2 — Sleep / Circadian Dysrhythmia and Section 4.4 — L–E Time of Day . — Jet lag = environment-induced. Treat time of day, day/night, time-zone effects consistently as L–E .
Q8. The main consideration in modern airline operations should be:
- A.Efficient utilisation of resources.
- B.Maximum utilisation of resources.
- C.Safety.✓
Why: Safety is the cardinal principle of aviation. Efficiency and resource utilisation matter, but never above safety. The entire CRM/TEM/LOFT framework exists to contribute to incident and accident prevention (see Section 1.2). Safety is the overarching objective. — "Safety first" is non-negotiable in any DGCA exam — if Safety appears as an option in a question about priorities, it is almost always correct.
Q9. The elements of the SHEL model are:
- A.Software, hardware, electronics, and livewire.
- B.Shareware, hardware, education, and limitations.
- C.Software, hardware, environment, and livewire.✓
Why: S–H–E–L stands for Software, Hardware, Environment, Liveware . Note: option (C) uses the variant spelling "livewire" exactly as printed in the source question bank — the intended term is "Liveware". This is the only option that has all four correct categories. See Section 2.3 — The Four SHEL Components . — The official DGCA source spells it "Liveware". The Q-bank's "livewire" is a printing variant, not a real change in meaning. Both refer to the human element.
Q10. Which is true regarding the interaction between various elements of the SHEL model?
- A.All components of the SHEL model are equally important, as conflict and error can arise from the various mismatches.
- B.The hardware is the hub for interactions between the different components of the system, hence other components should be matched to design most suitable hardware.
- C.The liveware is the hub of the SHEL model; therefore, the nonhuman components should be adapted and matched to this central component.✓
Why: The source explicitly states: "The liveware (human element) is the hub of the SHEL model. The remaining components must be adapted and matched to this central component." See Section 2.5 — Liveware as the Hub . — "Liveware is the hub" is a single-sentence answer to many SHEL questions. Bank it.
Q11. CRM and LOFT training are designed to improve:
- A.The quality number of individuals performance.
- B.Individual performance in adverse conditions.
- C.The quality of crew performance.✓
Why: Both CRM and LOFT target crew (collective) performance, not individuals. LOFT specifically is described as a validation of training programmes and procedures, NOT a check on individuals. See Section 1 and Section 9 . — Remember: CRM = "Crew" Resource Management. The word crew is built into the acronym. The answer in any "what does CRM improve?" question will involve crew , not individuals.
Q12. Four important disciplines from which information is drawn in understanding human performance and behavior are:
- A.Psychology, engineering, physiology, and anthropometry.✓
- B.Sociology, mathematics, biology and industrial design.
- C.Physics, biochemistry, physiology, and anthropometry.
Why: The four disciplines underpinning Human Factors are: Psychology (mind, behaviour), Engineering (machines, systems), Physiology (body function), and Anthropometry (body measurements — reach, fit, size). These provide a complete coverage of mind + body + machine + fit. Anthropometric attributes (height, weight, reach, etc.) are explicitly listed in Section 3.1 — Physical Factors . — Mnemonic — "PEPA" : P sychology, E ngineering, P hysiology, A nthropometry.
Q13. Pilots have now become responsible for the management of hardware and software interfaces, through which they are required to direct the operation of the aircraft. These technological advances have:
- A.Significantly eliminated human errors.
- B.Given rise to new forms of error.✓
- C.Are aimed to eliminate pilots from the cockpit.
Why: Automation and advanced cockpit interfaces have relocated errors rather than eliminated them, introducing new categories such as mode confusion, automation surprises, and over-reliance on FMS. The source's automation discussion under L–S highlights operator workload, monitoring task, task saturation, situational awareness and skill maintenance as new concerns. See Section 4.3 — L–S Automation . — Pair this with Q16 (automation relocates and adds workload). The pattern is consistent: more automation → different errors, not fewer.
Q14. About what proportion of civil air accidents result from inadequate human performance?
- A.89%
- B.73%✓
- C.57%
Why: The widely accepted figure cited in DGCA Human Factors material and reflected in this Q-bank is approximately 73% of civil air accidents attributable to inadequate human performance. This is the reason CRM/TEM training carries the same regulatory weight as systems and emergency procedure training (see Section 1.2 ). — Lock this number — 73% . It is one of the few numerical figures asked directly in DGCA Human Factors exams.
Q15. What is meant by the trans authority gradient?
- A.It is the authority exercised by the captain over all flight operations.
- B.It is the authority relationship between captain and other crew members.
- C.It is the authority relationship between captain and first officer.✓
Why: The source defines Trans-Cockpit Authority Gradient (TCAG) precisely as "the authority relationship between captain and first officer" — not all crew, not unilateral captain authority. The gradient may be steep, shallow, or balanced (desired). See Section 6.1 — TCAG . — Bookmark this exact phrasing — "between captain and first officer" — it's a direct DGCA quotation.
Q16. Introducing Automation in a cockpit:
- A.Always reduces potential for human error and workload.
- B.Generally relocates potential for error and increases workload.✓
- C.Eliminates human error but workload increases.
Why: Automation does NOT eliminate errors — it shifts them to new domains (mode confusion, monitoring failures, complacency). It also increases certain workloads : monitoring tasks, mode awareness, data entry, programming, and managing automation itself. This matches the L–S Automation source items: operator workload, monitoring task, task saturation, situational awareness, skill maintenance. See Section 4.3 — L–S Automation . — Mantra — "Automation relocates error, it does not eliminate it." Pair with Q13.
Q17. High Arousal Overload results in:
- A.A real danger of attention becoming narrowed.✓
- B.An attention becoming sharpest.
- C.An optimum arousal for more difficult or intellectually (cognitive) tasks.
Why: Under high arousal/overload, attention narrows (channelization, fixation) — the opposite of "sharpening". This is consistent with the Yerkes-Dodson inverted-U: high arousal degrades performance on cognitively demanding tasks. The source lists "channelized attention" and "fixation" as failure modes under Section 3.3 — Attention . — The classic exam phrase to recognise: "channelized attention" or "tunnel vision under stress" → both indicate the narrowing referenced in option (A).
Q18. A pilot suffering from a mild headache before flight can:
- A.Take Over The Counter medicines from the chemist and fly.
- B.Take Over The Counter medicines from the first aid box in the aircraft and fly.
- C.Should take medicines prescribed by an aviation medicine specialist and take his advise for flying.✓
Why: OTC medicines can have side effects (drowsiness, blurred vision, impaired reaction time) that compromise flight safety. A pilot must consult an aviation medicine specialist , who can prescribe an appropriate medication AND determine whether the pilot is fit to fly. The headache itself may also be a symptom requiring grounding. See Section 3.2 — Drugs / Health . — Golden rule — "Pilot + medication" answer is ALWAYS: consult Aviation Medicine Specialist. No DGCA exam question on this topic deviates from this.
Q19. Categories of errors defined by TEM are:
- A.Intentional non-compliance error, Procedural error, Communication error, Proficiency error and Operational decision error.✓
- B.Intentional non-compliance error, Procedural error, Communication error, Proficiency error and vigilance error.
- C.Instrument error, Procedural error, Communication error, Proficiency error and vigilance error.
Why: TEM defines exactly five error categories per the source: Intentional Non-compliance · Procedural · Communication · Proficiency · Operational Decision . See Section 8.2 — Five Error Categories . — Mnemonic — "I PCPO" : Intentional non-compliance, Procedural, Communication, Proficiency, Operational decision. Drill this once and you own every TEM error question.
Q20. Operational Threats outside the control of flight crew are:
- A.Adverse weather, Terrain, Airport conditions, Heavy traffic/TCAS events, Unfamiliar airports etc.
- B.Time pressure, Irregular operations, Flight diversions, Missed approaches etc.✓
- C.Aircraft malfunctions, Automation events etc.
Why: The question specifically asks about the "Operational" category of threats. Per the source's Threat Type #5 (Operational), examples are exactly: Time pressure, Irregular operations, Flight diversions, Missed approaches . See Section 7.3 — Threat Type 5: Operational . — Read the question's key adjective. "Operational" threats = the schedule/ops world (time, diversions, missed approaches). "Environmental" = weather/terrain. "Aircraft" = malfunctions/automation. Match the category to the listed items.
Q21. What airplane equipment marked a substantial decrease in hull loss rates in the eighties?
- A.GPWS✓
- B.TCAS
- C.SSR
Why: The source directly states: "In 1980s Ground Proximity Warning System (GPWS) marked a substantial decrease in hull loss rates." GPWS attacked the leading cause of fatal accidents at the time — Controlled Flight Into Terrain (CFIT). See Section 4.2 — L–H GPWS milestone . — Decade-equipment pairing: 1980s → GPWS (anti-CFIT). The DGCA loves direct decade quotes from the chapter — remember this verbatim.