MCQOPTIONS
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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.
| 501. |
The letter T in the EEG electrode placement system denotes? |
| A. | temporal lope |
| B. | temper lobe |
| C. | trace |
| D. | timpanic |
| Answer» B. temper lobe | |
| 502. |
instrument is used to hold patients head and guide the placement of electrodes. |
| A. | Monotaxic |
| B. | Stereotonic |
| C. | Stereotaxic |
| D. | Monotonic |
| Answer» D. Monotonic | |
| 503. |
Which rhythm is the principal component of the EEG that indicates the alertness of thebrain? |
| A. | theta rhythm |
| B. | gamma rhythm |
| C. | beta rhythm |
| D. | alpha rhythm |
| Answer» E. | |
| 504. |
The delta wave in EEG ranges from |
| A. | 0.5-4Hz |
| B. | 4-8Hz |
| C. | 8-13Hz d) 13-22Hz |
| Answer» B. 4-8Hz | |
| 505. |
The variation of the electrical potential associated with the passage of a pulse along the membrane of a muscle cell or a nerve cell is called |
| A. | muscle potential |
| B. | action potential |
| C. | resting potential |
| D. | half cell potential |
| Answer» C. resting potential | |
| 506. |
Which type of transducer is commonly used for invasive blood pressure measurement? |
| A. | Capacitive |
| B. | Rheostatic |
| C. | Piezoelectric |
| D. | Potentiometric |
| Answer» D. Potentiometric | |
| 507. |
Impedance pneumography is a commonly-used technique to monitor a person’s |
| A. | respiration rate |
| B. | heart rate |
| C. | pulse rate |
| D. | skin impedance |
| Answer» B. heart rate | |
| 508. |
Which of the following is not a characteristic of an ideal op-amp? |
| A. | Zero slew rate |
| B. | Infinite bandwidth |
| C. | Infinite input impedance |
| D. | Zero output impedance |
| Answer» B. Infinite bandwidth | |
| 509. |
Any mechanism that increases heart rate is said to have a positive effect. |
| A. | cholinergic |
| B. | inotropic |
| C. | chronotrophic |
| D. | feedback |
| Answer» D. feedback | |
| 510. |
EKG stands for |
| A. | Electrocardiography |
| B. | Electroencephalography |
| C. | Electromyography |
| D. | Electrtokinetcography |
| Answer» B. Electroencephalography | |
| 511. |
Which of the following is the technique of analyzing the electrical activity of the heart byobtaining ECG’s? |
| A. | VCG |
| B. | EEG |
| C. | EMG |
| D. | PCG |
| Answer» B. EEG | |
| 512. |
The amplitude of EMG signals depend upon which of the following factor? |
| A. | Respiration |
| B. | Position of electrode |
| C. | Blood Resistivity |
| D. | Ventricular Volume |
| Answer» C. Blood Resistivity | |
| 513. |
The branch of medicine that deals with the provision and use of artificial devices such assplints and braces is |
| A. | prosthetics |
| B. | orthotics |
| C. | laproscopic |
| D. | augmentative communication |
| Answer» D. augmentative communication | |
| 514. |
The average power in an electromagnetic wave is given by |
| A. | propagation constant |
| B. | poynting vector |
| C. | phase constant |
| D. | attenuation constant |
| Answer» C. phase constant | |
| 515. |
An emitter bias Dual Input Balanced Output differential amplifier has VCC=20v, β=100,VBE=0.7v, RE=1.3kΩ. Find IE |
| A. | 7.42mA |
| B. | 9.8mA |
| C. | 10mA |
| D. | 8.6mA |
| Answer» B. 9.8mA | |
| 516. |
In photometers, the readings of the specimen are initially obtained in the form of which of thefollowing parameters? |
| A. | Transmittance |
| B. | Absorption |
| C. | Wavelengths |
| D. | Volume |
| Answer» B. Absorption | |
| 517. |
Find the voltage gain magnitude of the wide band-pass filter?Where total pass band gain is=6, input frequency = 750Hz, Low cut-off frequency =200Hz and high cut-off frequency=1khz. |
| A. | 13.36 dB |
| B. | 12.25 dB |
| C. | 11.71 dB |
| D. | 14.837dB |
| Answer» E. | |
| 518. |
Compute the quality factor of the wide band-pass filter with high and low cut-off frequenciesequal to 950Hz and 250Hz. |
| A. | 0.278 |
| B. | 0.348 |
| C. | 0.696 |
| D. | 0.994 |
| Answer» D. 0.994 | |
| 519. |
Which of the following instrument is used for making a study of reflex responses? |
| A. | EEG |
| B. | ECG |
| C. | VCG |
| D. | EMG |
| Answer» E. | |
| 520. |
Which of the following microphone is used for recording phonocardiograms? |
| A. | Contact Microphone |
| B. | Shotgun Microphone |
| C. | Handheld Microphone |
| D. | Lapel Microphone |
| Answer» B. Shotgun Microphone | |
| 521. |
Electrodes make a transfer from the in the tissue to the electronic conduction which is necessary to make measurements. |
| A. | electronic conduction |
| B. | ionic conduction |
| C. | electric conduction |
| D. | impulsive conduction |
| Answer» C. electric conduction | |
| 522. |
The group delay of the wave with phase constant of 62.5 units and frequency of 4.5radian/sec is |
| A. | 13.88 |
| B. | 31.88 |
| C. | 88.13 |
| D. | 88.31 |
| Answer» B. 31.88 | |
| 523. |
CMRR is measured in |
| A. | V/s |
| B. | dB |
| C. | dB/s |
| D. | dB/ms |
| Answer» C. dB/s | |
| 524. |
If output is measured between two collectors of transistors, then the Differential amplifier withtwo input signal is said to be configured as |
| A. | Dual Input Balanced Output |
| B. | Dual Input Unbalanced Output |
| C. | Single Input Balanced Output |
| D. | Dual Input Unbalanced Output |
| Answer» B. Dual Input Unbalanced Output | |
| 525. |
5 and Zo = 50, we get Zmax = 2.5 x 50 = 125 ohm."9. |
| A. | "The minimum impedance of a transmission line 75 ohm with a standing wave ratio of 4 is 75 |
| B. | 300 |
| C. | 18.75 |
| D. | 150 |
| Answer» D. 150 | |
| 526. |
Deep-seated electrodes indicates the electric potential difference arising the livingtissues or cells. |
| A. | inside |
| B. | outside |
| C. | around |
| D. | adjacent |
| Answer» B. outside | |
| 527. |
The output of differential gain is given by |
| A. | (difference of the two input voltage)*(feedback resistance/input resistance) |
| B. | (sum of the two input voltage)*(feedback resistance/input resistance) |
| C. | (difference of the two input voltage)*(input resistance/feedback resistance) |
| D. | (sum of the two input voltage)*(input resistance/feedback resistance) |
| Answer» B. (sum of the two input voltage)*(feedback resistance/input resistance) | |
| 528. |
In voluntary contraction of the skeletal muscles, the muscle potential ranges from |
| A. | 50 uV – 5 mV |
| B. | 50 mV – 5 V |
| C. | 0.05 uV – 2 mV |
| D. | 50 mV – 500 mV |
| Answer» B. 50 mV – 5 V | |
| 529. |
The ability of the amplifier to reject common voltages on its two input leads is known as |
| A. | common mode rejection rate |
| B. | coupled mode rejection rate |
| C. | common mode rejection ratio |
| D. | coupled mode rejection ratio |
| Answer» D. coupled mode rejection ratio | |
| 530. |
EMG instrument contain frequency component extending up to Khz. |
| A. | 1 |
| B. | 5 |
| C. | 10 |
| D. | 15 |
| Answer» D. 15 | |
| 531. |
Voltage follower is also known as |
| A. | Unity gain amplifier |
| B. | Differential amplifier |
| C. | Comparator |
| D. | None of the mentioned |
| Answer» B. Differential amplifier | |
| 532. |
A Differential Amplifier should have collector resistor’s value (RC1 & RC2) as |
| A. | 5kΩ, 5kΩ |
| B. | 5Ω, 10kΩ |
| C. | 5Ω, 5kΩ |
| D. | 5kΩ, 10kΩ |
| Answer» B. 5Ω, 10kΩ | |
| 533. |
For infants, the pulse oximetry band is attached to their |
| A. | arm |
| B. | leg |
| C. | palm |
| D. | foot |
| Answer» E. | |
| 534. |
Electrodes to measure EEG are placed on |
| A. | forehead |
| B. | scalp |
| C. | cheek |
| D. | ears |
| Answer» C. cheek | |
| 535. |
What is the Common Mode Rejection Ratio? |
| A. | Output of a differential amplifier |
| B. | Ability of an amplifier to reject common mode signals |
| C. | Ability of an amplifier to accept common mode signals |
| D. | None of the mentioned |
| Answer» C. Ability of an amplifier to accept common mode signals | |
| 536. |
Bio potential amplifiers have input terminals. |
| A. | 3 |
| B. | 4 |
| C. | 5 |
| D. | 6 |
| Answer» B. 4 | |
| 537. |
Blood pressure is measured in terms of |
| A. | mm Hg |
| B. | mm |
| C. | cm Hg |
| D. | Hg |
| Answer» B. mm | |
| 538. |
According to the international 10/20 system to measure EEG, odd number denotes which sideof the brain? |
| A. | left |
| B. | right |
| C. | top |
| D. | front |
| Answer» B. right | |
| 539. |
Colorimeters are used to determine the concentration of solutions. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 540. |
The colloid osmotic pressure of blood plasma is due to high concentration of |
| A. | albumin |
| B. | hemoglobin |
| C. | sodium |
| D. | glucose |
| Answer» B. hemoglobin | |
| 541. |
Which of the following instrument is used for recording the electrical activity of the muscles? |
| A. | ECG |
| B. | EMG |
| C. | PCG |
| D. | EEG |
| Answer» C. PCG | |
| 542. |
What is the typical range of EMG signals? |
| A. | 0.025 to 0.050 mV |
| B. | 0.050 to 0.1 mV |
| C. | 0.1 to 0.5 mV |
| D. | 0.5 to 1 mV |
| Answer» D. 0.5 to 1 mV | |
| 543. |
What is the diameter of silver electrodes in the amplifier circuit of Johnson et al? |
| A. | 2 mm |
| B. | 4 mm |
| C. | 6 mm |
| D. | 10 mm |
| Answer» D. 10 mm | |
| 544. |
A typical ECG wave is |
| A. | Periodic |
| B. | A-periodic |
| C. | Quasi – Periodic |
| D. | Non – Periodic |
| Answer» D. Non – Periodic | |
| 545. |
Find IC, given VCE=0.77v, VCC=10v, VBE=0.37v and RC=2.4kΩ in Dual Input BalancedOutput differential amplifier |
| A. | 0.4mA |
| B. | 0.4A |
| C. | 4mA |
| D. | 4A |
| Answer» D. 4A | |
| 546. |
5 is"The maximum impedance of a transmission line 50 ohm and the standing wave ratio of |
| A. | 20 |
| B. | 125 |
| C. | 200 |
| D. | 75 |
| Answer» C. 200 | |
| 547. |
The amplitudes of the segments of the wave are |
| A. | P = 0.25 mV, Q = 0.4mV, R = 1.60mV, T = 0.1 – 0.5 mV |
| B. | P = 2.0 mV, Q = 0.1mV, R = 1.60mV, T = 0.1 – 0.5 mV |
| C. | P = 25.0mV, Q = 4.0mV, R = 16.0 mV, T = 10 – 50 mV |
| D. | P = 0.25 mV, Q = 0.60mV, R = 1.60mV, T = 0.1 – 1.0 mV |
| Answer» B. P = 2.0 mV, Q = 0.1mV, R = 1.60mV, T = 0.1 – 0.5 mV | |
| 548. |
Metallic micro electrodes have impedance compared to conventional electrodes? |
| A. | equal |
| B. | smaller |
| C. | high |
| D. | very high |
| Answer» E. | |
| 549. |
The number of leads necessary for an ECG is |
| A. | 3 |
| B. | 6 |
| C. | 12 |
| D. | 24 |
| Answer» B. 6 | |
| 550. |
When the ratio of load voltage to input voltage is 5, the ratio of the characteristicimpedance to the input impedance is |
| A. | 1/5 |
| B. | 5 |
| C. | 10 |
| D. | 25 |
| Answer» C. 10 | |