Mechanical Measurements & Instrumentation MCQs
Mechanical Measurements & Instrumentation MCQs
Answer these Mechanical Measurements & Instrumentation MCQs and see how sharp is your knowledge of Mechanical Measurements & Instrumentation.
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1: What is the temperature of Absolute Zero?
A. -273.15 Celsius
B. 273.15 Kelvin
C. 0 Kelvin
D. 459.67 Fahrenheit
2: What is the full form of AC?
A. Amplitude of current
B. Area of curvature
C. Alternating current
D. Attack of current
3: What is the accuracy of a measurement device usually expressed as?
A. Measurement device
B. Full scale output
C. Actual value
D. ± percent of full scale output or reading
4: What is an adaptor?
A. A device for converting AC to DC
B. A mechanism or device for attaching non-mating parts.
C. A device for connecting two different types of equipment
D. A device for measuring electrical current
5: ADC stands for ____
A. Arithmetic Data Converter
B. Analog-to-Digital Converter
C. Average Data Converter
D. Amplitude Data Converter
6: What is the definition of "address"?
A. A building or site where something specific is located
B. A written or spoken expression of thanks
C. The direction in which something faces or lies
D. The label or number identifying the memory location where a unit of information is stored.
7: What does the address label identify?
A. The type of information stored in memory.
B. The memory location where a unit of information is stored.
C. The memory location where a unit of information is accessed.
D. The amount of information that can be stored in memory.
8: What is the minimum sample rate needed to avoid aliasing?
A. Fs >= 2*highest frequency value
B. Fs = 2*highest frequency value
C. Fs < 2*highest frequency value
D. Fs > 2*highest frequency value
9: With which alloy is pure copper used as the negative leg to form extension wire for platinum—platinumrhodium thermocouples?
A. Alloy 44
B. Alloy 11
C. Alloy 22
D. Alloy 33
10: What is the definition of alphanumeric?
A. A character set that contains neither letters nor digits.
B. A character set that contains only letters.
C. A character set that contains only digits.
D. A character set that contains both letters and digits.
11: What is alumel?
A. A pure form of aluminum
B. The process of compensating for changes in ambient temperature
C. A device used to measure ambient temperature
D. An aluminum nickel alloy used in the negative leg of a Type K thermocouple
12: Transducer is a device that _______.
A. Converts energy from one form to another
B. Converts light into electrical signals
C. Regulates the flow of electricity
D. All of the above
13: What is the definition of ambient conditions?
A. The conditions around the transducer
B. The conditions inside the transducer
C. The transducer's operating conditions
D. The conditions outside the transducer
14: What is the average or mean temperature of the surrounding air which comes in contact with the equipment and instruments under test?
A. Laboratory Temperature
B. Room Temperature
C. Ambient Temperature
D. Environment Temperature
15: What is an ammeter used for?
A. To measure power
B. To measure resistance
C. To measure voltage
D. To measure current
16: How many electrons flow in one ampere?
A. 6.28 x 1018
B. 6.28 x 1014
C. 6.28 x 1021
D. 6.28 x 1028
17: What is the unit used to define the rate of flow of electricity in a circuit?
A. Watt
B. Ohm
C. Volt
D. Ampere
18: What is the output of an amplifier?
A. Enlarged reproduction of the essential features of its input
B. Reduction of the essential features of its input
C. Amplification of random noise along with the input signal
D. No change to the essential features of its input
19: What is the total noise floor from all sources of interference in a measurement system called?
A. Interference Noise
B. Data Noise
C. Signal Noise
D. Background Noise
20: What is Bandwidth?
A. The highest frequency component of a signal
B. Cutoff frequency
C. A symmetrical region around the set point in which proportional control occurs.
D. The width of a passband
21: What does the acronym "BASIC" stand for?
A. Benign Autonomous System for Intelligent Computation
B. Big Awesome Science Interdisciplinary Collaboration
C. Beginner's All-purpose Symbolic Instruction Code
D. British Arms Supplier Invented Computing
22: What does Baud measure?
A. The number of nanoseconds per bit
B. The number of seconds per bit
C. The number of milliseconds per bit
D. The number of bits per second
23: What is the unit of data transmission speed equal to the number of bits per second?
A. Lumen
B. Joule
C. Kelvin
D. Baud
24: What does BCD stand for?
A. Binary Coded Decimal
B. Buffered: Binary-coded decimal output with output drivers
C. Basic Configuration Data
D. Block Check Data
25: BCD is which type of data output format?
A. Parallel
B. ASCII
C. Serial
D. Coded
26: How many lines are used to represent one decimal digit in BCD?
A. 6
B. 4
C. 3
D. 5
27: Beryllium Oxide is which of the following?
A. A high-temperature mineral insulation material
B. A low-temperature mineral insulation material
C. A powder form of the element Beryllium
D. A non-mineral insulation material
28: What is the chemical formula for Beryllia?
A. CO
B. AO
C. BO
D. BeO
29: What does BIAS Current refer to?
A. An AC current that opposes changes in the current
B. A very low-level DC current generated by a panel meter and superimposed on a signal
C. The average value of an AC waveform
D. The Root Mean Square of an alternating current
30: What is the minimum number of bits required to represent a decimal number in BCD form?
A. 4
B. 2
C. 8
D. 1
31: What is the base of Binary Coded Decimal?
A. 8
B. 2
C. 16
D. 10
32: What are the only two allowable digits in the binary numbering system?
A. 1 and 2
B. 1 and 3
C. 0 and 1
D. 0 and 2
33: What does the term "Binary" refer to?
A. The base 2 numbering system, in which the only allowable digits are 0 and 1
B. Binary code
C. The number 10
D. Binary stars
34: What does the term "Bipolar" refer to in the electrical field?
A. The ability of a panel meter to only display negative readings.
B. The ability of a panel meter to display both positive and negative readings.
C. The ability of a panel meter to display zero readings.
D. The ability of a panel meter to only display positive readings.
35: What is a Bit?
A. A data type that stores true or false
B. The smallest unit of computer information, it is either 0 or 1.
C. The shortest unit of time
D. The execution of a single line of code
36: What colours can a blackbody be?
A. Yellow
B. Blue
C. Not necessarily black
D. Green
37: What does BNC stand for?
A. Broad National Curriculum
B. Bayonet Neill–Concelman
C. British National Corpus
D. Banana Nut Bread
38: What is the BNC connector?
A. A type of audio connector
B. A type of electrical connector
C. A type of computer connector
D. A quick disconnect electrical connector used to interconnect and/or terminate coaxial cables
39: What is the boiling point of water?
A. Boiling water is not a thing
B. 250°C
C. 100°C
D. 75°C
40: Above what voltage value can a transducer be applied without arcing or conduction?
A. Reactive Power
B. Breakdown Voltage Rating
C. Apparent Power
D. Power Factor
41: What is the Breakdown Voltage Rating?
A. The current which can be applied to insulation without arcing or conduction.
B. The voltage which can be applied to insulation without arcing or conduction.
42: What does calibration involve?
A. The process of adjusting an instrument so that its reading can be correlated to the actual value being measured.
B. The process of adjusting an instrument so that its reading can be correlated to the theoretical value being measured.
43: What is a calorie?
A. The quantity of energy required to raise one litre of water 1°C
B. The quantity of energy required to heat one gram of water 1°C
C. The quantity of energy required to raise one ton of water 1°C
D. The quantity of thermal energy required to raise one gram of water 1°C at 15°C.
44: How many calories are needed to raise one gram of water 1°C?
A. 1
B. 100
C. 15
D. 1000
45: What causes cavitation?
A. An increase in pressure
B. A decrease in pressure
C. A decrease in volume
D. An increase in temperature
46: What is the boiling point of water on the Celsius scale?
A. 0°C
B. 212°F
C. 100°C
D. 32°F
47: Where was the Celsius temperature scale defined?
A. On the moon
B. At the ice point and boiling point of water
C. In space
D. On a mountain
48: What is the most common type of ceramic insulation?
A. Beryllia
B. Ceramic Insulators
C. Alumina
D. Magnesia
49: What are Ceramic materials mainly used for?
A. Polycrystalline ferroelectric materials
B. As the sensing units in piezoelectric accelerometers
C. To satisfy different design requirements
D. Made in various configurations
50: What is a character?
A. A letter, digit and other symbol that is used as the representation of data.
B. A disconnected sequence of characters is called a character string.
C. A letter, digit or other symbol that is used as the representation of data.
D. Character strings are not case sensitive.
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