Cascade control is
(A) The continuous adjustment of the set point index of an automatic control loop by a primary (master) controller
(B) Used when changes in process conditions cause serious upsets in the controlled variable
(C) Useful to control flow from temperature
(D) All 'a', 'b' & 'c'

1 Answer

Answer :

(D) All 'a', 'b' & 'c'

Related questions

Description : What are the different default triggers created when Master Deletes Property is set to Cascade?

Last Answer : Master Deletes Property Resulting Triggers --------------------------------------------------- Cascading On-Clear-Details On-Populate-Details Pre-delete

Description : Mark I is also known as A) American Sequence Controlled Calculator B) Automatic Sequence Calculating Controller C) American Sequence Controlled Computer D) Automatic Sequence Controlled Calculator

Last Answer : Answer : D

Description : . It is possible to integrate an automatic flow controller to a (A) Flow nozzle (B) Venturimeter (C) Rotameter (D) None of these

Last Answer : (C) Rotameter

Description : The primary advantage of automatic vending as a form of retailing is that : 1. it provides continuous service to customers 2. it eliminates the need for sales personnel 3. vending machines require little maintenance 4. it offers low cost, personal method of selling 5. none of these

Last Answer : it eliminates the need for sales personnel

Description : The primary advantage of automatic vending as a form of retailing is that: A)it provides continuous service to customers. B)it eliminates the need for sales personnel. C)vending machines require little maintenance. D)it offers a low cost, personal method of selling.

Last Answer : B)it eliminates the need for sales personnel.

Description : The wrong statement in relation to experimental method is Options: A) Observation under controlled condition is experiment B) It is method of effective control of variables C) Careful observation of a phenomenon under controlled conditions D) It is an useful method in laboratories

Last Answer : D) It is an useful method in laboratories 

Description : Difference at any instant between the value of the controlled variable and the set point is called the (A) Deviation (B) Derivative time (C) Error ratio (D) Differential gap

Last Answer : Option A

Description : Higher viscosity index of a lubricating oil denotes (A) Less changes in fluidity of oil with temperature (B) Substantially high change in fluidity of oil with temperature (C) Its unsuitability under varying temperature conditions (D) None of these

Last Answer : (A) Less changes in fluidity of oil with temperature

Description : The index of compression n tends to reach ratio of specific heats y when  (a) flow is uniform and steady  (b) process is isentropic  (c) process is isothermal  (d) process ... specific heat does not change with temperature  (e) process is isentropic and specific heat changes with temperature.

Last Answer : Answer : d

Description : A solid material shows case hardening properties while drying. Which of the following should be controlled to control the drying process? (A) Flow rate of inlet air (B) Relative humidity of outlet air (C) Humidity of inlet air (D) Temperature of the solid

Last Answer : (D) Temperature of the solid

Description : According to U. S. Coast Guard Regulations (46 CFR), the motor controller for a submersible electric motor driven bilge pump should be installed _____________. A. in the shaft alley B. at the submersible bilge pump C. above the uppermost continuous deck D. at the engine room emergency control panel

Last Answer : Answer: C

Description : An automatic toaster is a ______ loop control system.

Last Answer : An automatic toaster is an open loop control system.

Description : Computers that control processes accept data in a continuous a) data traffic pattern b) data highway c) infinite loop d) feedback loop e) None of these 44. What refers to a

Last Answer : c) infinite loop

Description : The purpose of the 'heater resistors' for the winch circuit shown in the illustration is to _______________. EL-0102 A. limit the current in the heater circuit B. dispel moisture in the ' ... panel C. keep the winch brake housing below the dew point D. maintain winch motor operating temperature

Last Answer : Answer: B

Description : The fundamental assumption of experimental method is related with Options: A) Law of single variable B) Law of two variable C) Controlled conditions D) Intermediary variables

Last Answer : A) Law of single variable 

Description : Which of the listed conditions occur when '4th point lower' is selected on the winch shown in the illustration? EL-0102 A. Master switch contacts '3', '4', '6', '8', '9', & '10' close. B. Contactors '2, 3, & 4M' and ' ... , '7', '8', and '9' close. D. Contactors '1 & 3M' and '1, 2, & 3A' pick up.

Last Answer : Answer: B

Description : Paddy cono weeder is useful for. a) Weeding between rows of crops like cotton for sugarcane. b) For uprooting and burying weeds in between standing rows of rice crops in in wetland. c) For weeding in raw crops in rain fed. d) For placing seed in continuous flow.

Last Answer : For uprooting and burying weeds in between standing rows of rice crops in in wetland.

Description : Is there anything that you continually think about that upsets you?

Last Answer : Why, after almost 5 years, I still can’t cut my cat’s nails.

Description : What's an opinion that you have that is quite unremarkable/harmless but upsets a lot of people?

Last Answer : Gender reveal parties are stupid.

Description : Research has shown that the most frequent symptom of nervous instability among teacher is Options: A) Absenteeism B) Digestive upsets C) Explosive behaviour D) Worry

Last Answer : D) Worry 

Description : Research has shown that the most frequent symptom of nervous instability among teachers is (A) Digestive upsets (B) Explosive behaviour (C) Fatigue (D) Worry

Last Answer : Answer: B

Description : is an open loop control system. (a) Ward Leonard control (b) Field controlled D.C. motor (c) Stroboscope (d) Metadyne

Last Answer : Ans: B

Description : Under a given set of operating conditions, the designer and operator has some control of a)Useful soil resistance b) Parasitic Force c)Draft of implement d) Pull of implement

Last Answer : b) Parasitic Force

Description : Which of the following auditor concerns most likely could be so serious that the auditor concludes that a financial statement audit cannot be conducted? a. The entity has no formal written ... subject to management override d. Management fails to modify prescribed controls for changes in conditions

Last Answer : The integrity of the entity’s management is suspect

Description : Why is it important to initialize the loop control variable for WHILE loops?

Last Answer : Uninitialised variables take on whatever value happens to resideat the memory address to which the variable was allocated at thepoint of instantiation. It is a "garbage value" because we cannotpredict ... loop and ultimately tells us how many characters wereread into the buffer (such that index

Description : Pick out the wrong statement. (A) Cellulose acetate membranes are used in dialysis process (B) Elutriation process refers to when the soluble material is largely concentrated on the surface of an ... that various streamflow from one to another (D) Zirconia probe is used for the humidity measurement

Last Answer : (D) Zirconia probe is used for the humidity measurement

Description : A variable shunt, connected across the series field coils of a DC compound wound generator, to permit adjustment of the degree of compounding, is called a _____________. A. divider B. diverter C. converter D. rheostat

Last Answer : Answer: B

Description : Which of the following statements about the coagulation cascade is/are true? A. The intrinsic pathway of coagulation is the predominant pathway in vivo for hemostasis and coagulation. ... coagulation abnormalities. D. Deficiencies of factor XII cause severe clinical bleeding syndromes.

Last Answer : Answer: AC DISCUSSION: Although it was previously held that two somewhat distinct pathways existed for the activation of the coagulation cascade, it is now recognized that the predominant ... bleeding. This further emphasizes the secondary role that the intrinsic pathway plays in coagulation

Description : What is the full form of ATC? a.Automatic tool changer b.Arranged tool changer c.Automatic tool controller d.Arranged tool controller

Last Answer : a.Automatic tool changer

Description : A series wound DC motor has its armature and field connected in series with a resistor. When the motor is disconnected from its power supply, this motor will exemplify __________. A. the ... the proper connections for an automatic strip heater C. a reversing controller circuit D. dynamic braking

Last Answer : Answer: D

Description : State the working principle and operation of Automatic power factor controller used in Transmission and Distribution system.

Last Answer : Diagram of Automatic over factor controller Automatic Power factor control: The pf controller is used to maintain the pf at unity across the lines it is connected. Maintaining the pf at ... the load demand in the system is increased. 8. Check if power transformer compensation is provided.

Description : A circuit breaker for a 300 KW alternator is rated at 470 amperes of full continuous load. The amount of overcurrent allowed is 125%. Which of the following conditions will trip the breaker? A. ... 10 minutes. C. Momentary starting load of 550 amperes. D. Sustained current flow of 590 amperes.

Last Answer : Answer: D

Description : (1) If \( X \) is a continuous random variable with density functions\[f(x)=\left\{\begin{array}{ll}\frac{a x^{2}}{8} & 0 \leq x

Last Answer : (1) If \( X \) is a continuous random variable with density functions \[ f(x)=\left\{\begin{array}{ll} \frac{a x^{2}}{8} & 0 \leq x

Description : Which variable cannot be written in entire distribution as a table? a) Discrete b) Continuous c) Both Discrete & Continuous d) None of the mentioned

Last Answer : b) Continuous

Description : The 'reset' contacts of the master switch shown in the illustration provides the winch controller with ___________. EL-0102 A. low voltage release B. overload protection C. low voltage protection D. high power factor correction

Last Answer : Answer: C

Description : In an emergency, the fastest way to interrupt power and stop the winch shown in the illustration is for the ____________. EL-0102 A. mate to open the disconnect switch at 'L1' and 'L2' B. ... watch engineer to open the winch circuit breaker D. electrician to open the test link at the controller

Last Answer : Answer: B

Description : The 'safe switch' of the winch controller shown in the illustration is operated _______________. EL-0102 A. through the master switch handle B. when heater circuit current is high C. by contactor coil 'FR' D. manually by the winch operator

Last Answer : Answer: D

Description : Before working on an electric cargo winch master switch or controller, you should _____________. A. spray the gasket surface with a solvent B. drain condensate from the box C. open the circuit breaker in the power supply and tag D. heat the switch box to remove any moisture

Last Answer : Answer: C

Description : Pick out the wrong statement (A) A horizontal line on the humidity chart indicates the temperature changes at constant molal humidity (B) When water is cooled from 80 to 70°C by exposure ... & air cannot be increased by either reducing the mixture temperature or by increasing the total pressure

Last Answer : (D) Relative saturation of unsaturated mixture of water vapor & air cannot be increased by either reducing the mixture temperature or by increasing the total pressure

Description : LMTD for evaporators & condensers for a given terminal parameters & set of conditions for counter-flow is equal to that for parallel flow. In such heat exchangers, with one of the fluids condensing or evaporating, the surface ... Parallel (B) Mixed (C) Counter flow (D) Same in either 'a', b' or 'c'

Last Answer : (D) Same in either 'a', b' or 'c'

Description : Pickup wrong definition 1) Off line - is a system peripheral equipment not controlled by CPU 2) Online - is system in which peripheral equipment is in direct contact with CPU 3) PL/I is the ... /Index 4) Program or routine is a set sequence of instructions given to computer for problem solving

Last Answer : 3) PL/I is the acronym Peripheral Listing /Index

Description : The pitting of controller contacts can be caused by _____________. A. excessive spring pressure B. insufficient contact pressure C. continuous motor overload D. all of the above

Last Answer : Answer: B

Description : Which of the following is an independent variable for a batch tank reactor with uniform concentration and temperature? (A) Time (B) Useful volume of the tank (C) Diameter of the reactor (D) None of these

Last Answer : (A) Time

Description : The speed of a three-phase induction motor is controlled by variable voltage variable frequency control (i.e. keeping V/f constant). As the frequency is reduced, the slip at maximum torque  (1) Decreases (2) Increases (3) Remains constant (4) None of the above

Last Answer : The speed of a three-phase induction motor is controlled by variable voltage variable frequency control (i.e. keeping V/f constant). As the frequency is reduced, the slip at maximum torque Increases 

Description : What component in the telephone set has the primary function of interfacing the handset to the local loop? A. Varistor B. Induction coil C. Resistor D. Capacitor

Last Answer : B. Induction coil

Description : What component in the telephone set has the primary function of interfacing the handset to the local loop? A. Varistor B. Induction coil C. Resistor D. Capacitor

Last Answer : B. Induction coil

Description : In order to prevent the winch shown in the illustration from turning while troubleshooting the controller circuit, _________________. EL-0102 A. set the dynamic brake by clamping contact 'DB' closed B. set the ... at 'B1' and 'B2' D. open the test link preventing current flow to the armature

Last Answer : Answer: D

Description : A/An disorder is characterized by serious temporary or ongoing changes in function, such as paralysis or blindness that are triggered by psychological factors rather than by any physical cause?

Last Answer : Cataracts