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MCQOPTIONS
This section includes 806 Mcqs, each offering curated multiple-choice questions to sharpen your Chemical Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 701. |
What is the extension used for saving the ruby file? |
| A. | .ruby extension |
| B. | .rb extension |
| C. | .rrb extension |
| D. | None of the mentioned |
| Answer» C. .rrb extension | |
| 702. |
Which of the following languages syntax matches with the Ruby’s syntax? |
| A. | Perl |
| B. | PHP |
| C. | Java |
| D. | Jquery |
| Answer» B. PHP | |
| 703. |
Which of the following features does the 2.0 version of ruby supports? |
| A. | Method keyword arguments |
| B. | New literals |
| C. | Security fixes |
| D. | All of the mentioned |
| Answer» E. | |
| 704. |
Which of the following is supported by Ruby? |
| A. | Multiple Programming Paradigms |
| B. | Dynamic Type System |
| C. | Automatic Memory Management |
| D. | All of the Mentioned |
| Answer» E. | |
| 705. |
Ruby is an object oriented general purpose programming language. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 706. |
Creep in rails causes the following except |
| A. | The ballast is forced out of place |
| B. | Rail joints get jammed and prevent expansion of rails |
| C. | The ride becomes bumpy and uncomfortable |
| D. | The gauge length remains the same |
| E. | It becomes difficult to operate switches and interlocking system |
| Answer» E. It becomes difficult to operate switches and interlocking system | |
| 707. |
On Indian Railways, the standard length of rails in a Broad Gauge track is______. |
| A. | 11.98 m |
| B. | 12.8 m |
| C. | 10.97 m |
| D. | 10.06 m |
| Answer» C. 10.97 m | |
| 708. |
1 coulomb = _________. |
| A. | 1 ampere second (As) |
| B. | 3600 ampere second (As) |
| C. | 1 ampere hour (AH) |
| D. | 3600 ampere hour (AH) |
| Answer» B. 3600 ampere second (As) | |
| 709. |
A surface longitudinally cantered on the extended runway centre line and extending outward and upward is called |
| A. | Arimary surface |
| B. | Conical surface |
| C. | Horizontal surface |
| D. | Approach surface |
| Answer» E. | |
| 710. |
P = VI, if V is voltage and I is current then P is |
| A. | Pressure |
| B. | Pascal |
| C. | Power |
| D. | None of these |
| Answer» D. None of these | |
| 711. |
In AC circuits, the power factor is the ratio of ______. |
| A. | The apparent power that is used to do work and the real power that is supplied to the circuit |
| B. | The real power that is used to do work and the apparent power that is supplied to the circuit |
| C. | The reactive power that is used to do work and the apparent power that is supplied to the circuit |
| D. | The real power that is used to do work and the reactive power that is supplied to the circuit |
| Answer» C. The reactive power that is used to do work and the apparent power that is supplied to the circuit | |
| 712. |
_________ is made in single strand conductors for overhead lines for tapping the electrical energy. |
| A. | Married joint |
| B. | Tee joint |
| C. | Britannia straight joint |
| D. | Western union joint |
| Answer» C. Britannia straight joint | |
| 713. |
For a sleeper density of (n + 5) the number of sleepers required for constructing a Broad Gauge (B.G.) railway track of length 650 m is given by |
| A. | 1000 |
| B. | 900 |
| C. | 800 |
| D. | 700 |
| Answer» C. 800 | |
| 714. |
Energy meter is used for measuring ________. |
| A. | Power |
| B. | Resistance |
| C. | Current |
| D. | Voltage |
| Answer» B. Resistance | |
| 715. |
In a series circuit__________. |
| A. | Same current passes through each resistance |
| B. | There is voltage drop across each resistance |
| C. | The total resistance is sum of resistance of individual resistors |
| D. | All of these |
| Answer» E. | |
| 716. |
For deep underwater cutting, which of the following gas is used? |
| A. | Acetylene |
| B. | LPG |
| C. | Methane |
| D. | Hydrogen |
| Answer» E. | |
| 717. |
In India, compensation for curvature for broad gauge is: |
| A. | 0.1% per degree of curve |
| B. | 0.25% per degree of curve |
| C. | 0.6% per degree of curve |
| D. | 0.04% per degree of curve |
| E. | 0.3% per degree of curve |
| Answer» E. 0.3% per degree of curve | |
| 718. |
Calculate the number of sleepers required for 1 km railway track, if sleeper density is (n + 4) for broad gauge and the length of one rail for a broad gauge is 13 m. |
| A. | 437 |
| B. | 678 |
| C. | 1308 |
| D. | 17000 |
| Answer» D. 17000 | |
| 719. |
How is the capacitor’s capacitance expressed? |
| A. | volts |
| B. | amps |
| C. | ohms |
| D. | mfd |
| Answer» E. | |
| 720. |
A transition curve is to be provided for a circular railway curve of 300 m radius, the gauge is 1.5 m with the maximum superelevation restricted to 15 cm. What is the length of the transition curve for balancing the centrifugal force? |
| A. | 72.3 m |
| B. | 78.1 m |
| C. | 84.2 m |
| D. | 88.3. m |
| Answer» B. 78.1 m | |
| 721. |
A single phase 50 Hz transformer has high voltage and low voltage windings of 2200/220 V. What is the transformation ratio? |
| A. | 10 |
| B. | 1/10 |
| C. | 1 |
| D. | None of these |
| Answer» C. 1 | |
| 722. |
For domestic wiring purposes, how are circuits connected? |
| A. | Straight |
| B. | Parallel |
| C. | Serial |
| D. | Series |
| Answer» C. Serial | |
| 723. |
Commercial unit of electrical energy is … |
| A. | Watt second |
| B. | Watt minute |
| C. | Watt hour |
| D. | Kilo watt hour |
| Answer» E. | |
| 724. |
Ampere-hour is a unit of |
| A. | Quantity of electricity |
| B. | Strength of current |
| C. | Power |
| D. | Energy |
| Answer» B. Strength of current | |
| 725. |
Creep is the: |
| A. | Lateral movement of rail |
| B. | Vertical movement of rail |
| C. | Longitudinal movement of rail |
| D. | Difference in level of two rails |
| Answer» D. Difference in level of two rails | |
| 726. |
Creep causes |
| A. | opening of rail joints |
| B. | distortion of points and crossings |
| C. | buckling of track |
| D. | All of the above |
| Answer» E. | |
| 727. |
According to the wave action theory for creep of rails, the pitch and depth of wave depend upon:1) Section of rails2) Track modulus3) Stiffness of track4) Stability of foundation5) Weight of the trainWhich of these are correct? |
| A. | 1 and 2 only |
| B. | 1, 2 and 3 |
| C. | 2, 3 and 4 |
| D. | 3, 4 and 5 |
| Answer» D. 3, 4 and 5 | |
| 728. |
Match the designated component in List 1 with its purpose at airports in List 2.List 1A. Basic Runway lengthB. Runway CapacityC. Runway geometric designD. HangerList 21. Width and length of safety area of airport2. Housing, servicing of aircrafts3. Location of exit taxiways4. Engine failure class |
| A. | A – 1, B – 2, C – 4, D - 3 |
| B. | A – 4, B – 3, C – 1, D - 2 |
| C. | A – 4, B – 2, C – 3, D - 1 |
| D. | A – 4, B – 1, C – 3, D - 2 |
| Answer» C. A – 4, B – 2, C – 3, D - 1 | |
| 729. |
For a runway at an elevation of 2000 m above MSL and airport reference temperature of 12°C, the rise in temperature to be considered as per ICAO is |
| A. | 21.5°C |
| B. | 10°C |
| C. | 7.5°C |
| D. | 6.5°C |
| Answer» C. 7.5°C | |
| 730. |
Ailerons are used to control |
| A. | Yaw of aircraft |
| B. | Pitch |
| C. | Roll |
| D. | None of these |
| Answer» D. None of these | |
| 731. |
A series of processes to joint various parts to get a complete product is known as _____ |
| A. | storing |
| B. | queuing |
| C. | assembling |
| D. | disassembling |
| Answer» D. disassembling | |
| 732. |
Marshalling yard in railway system provides facilities for |
| A. | Maintenance of rolling stock |
| B. | Safe movements of passengers and coaches |
| C. | Receiving, braking up, re-forming and dispatching onwards – of trains |
| D. | Receiving, loading, unloading and delivery of goods and vehicles, and scheduling their further functioning |
| Answer» D. Receiving, loading, unloading and delivery of goods and vehicles, and scheduling their further functioning | |
| 733. |
Which codec is used in UK? |
| A. | a-law |
| B. | µ-law |
| C. | linear codec |
| D. | PCM |
| Answer» B. µ-law | |
| 734. |
Which is used to prioritise multiple request? |
| A. | dual address mode |
| B. | single address mode |
| C. | arbitration |
| D. | chaining |
| Answer» D. chaining | |
| 735. |
What is the full form of PCM in Basic? |
| A. | pulse codec machine |
| B. | pulse code modulation |
| C. | peripheral code machine |
| D. | peculiar code modulation |
| Answer» C. peripheral code machine | |
| 736. |
Which factor depends the quantisation error? |
| A. | number of error |
| B. | number of bits |
| C. | size of error |
| D. | conversion process |
| Answer» C. size of error | |
| 737. |
What is the full form of UART in Basic? |
| A. | universal asynchronous receiver transmitter |
| B. | unique asynchronous receiver transmitter |
| C. | universal address receiver transmitter |
| D. | unique address receiver transmitter |
| Answer» B. unique asynchronous receiver transmitter | |
| 738. |
What is the full form of ADPCM in Basic? |
| A. | address differential pulse code modulation |
| B. | adaptive differential pulse code modulation |
| C. | address dynamic pulse code machine |
| D. | adaptive dynamic pulse code modulation |
| Answer» C. address dynamic pulse code machine | |
| 739. |
What is the full form of DPCM in Basic? |
| A. | differential pulse code modulation |
| B. | data pulse code modulation |
| C. | dynamic pulse code machine |
| D. | dynamic pulse code modulation |
| Answer» D. dynamic pulse code modulation | |
| 740. |
Which of following allows voltage reversing? |
| A. | H bridge |
| B. | Relays |
| C. | LEDs |
| D. | LCDs |
| Answer» B. Relays | |
| 741. |
Which devices are used as indicators in digital system? |
| A. | LCD |
| B. | LED |
| C. | Varactor diode |
| D. | Gunn diode |
| Answer» C. Varactor diode | |
| 742. |
Which of the following are handshake signal? |
| A. | START |
| B. | STOP |
| C. | ACKNOWLEDGE |
| D. | START and STOP |
| Answer» D. START and STOP | |
| 743. |
Which ports are used in the multimaster system to avoid errors? |
| A. | unidirectional port |
| B. | bidirectional port |
| C. | multi directional port |
| D. | tridirectional port |
| Answer» C. multi directional port | |
| 744. |
Which of the following is efficient for small number of registers? |
| A. | auto-incrementing counter |
| B. | auto-decrementing counter |
| C. | combined format |
| D. | single format |
| Answer» B. auto-decrementing counter | |
| 745. |
What is the full form of I2C in Basic? |
| A. | inter-IC |
| B. | intra-IC |
| C. | individual integrated chip |
| D. | intel IC |
| Answer» B. intra-IC | |
| 746. |
Which of the following are the pin efficient method of communicating between other devices? |
| A. | serial port |
| B. | parallel port |
| C. | peripheral port |
| D. | memory port |
| Answer» B. parallel port | |
| 747. |
How is baud rate supplied? |
| A. | baud rate voltage |
| B. | external timer |
| C. | peripheral |
| D. | internal timer |
| Answer» C. peripheral | |
| 748. |
What does pin 22 in DB-25 indicates? |
| A. | transmit data |
| B. | receive data |
| C. | ring indicator |
| D. | signal ground |
| Answer» D. signal ground | |
| 749. |
Which of the following can determine the speed of conversion device itself. |
| A. | sample rate |
| B. | sampled data |
| C. | sample size |
| D. | sample nature |
| Answer» B. sampled data | |
| 750. |
Which of the following address mode uses a buffer to hold data temporarily? |
| A. | 1D model |
| B. | 2D model |
| C. | dual address model |
| D. | 3D model |
| Answer» D. 3D model | |